Internal scraping mechanism for thin-walled welded pipe

Abstract

The present invention is a thin-walled welded pipe internal scraping mechanism, which is combined with an adjustment component, an inner tie rod component and an inner scraper component. The inner tie rod component and the inner scraper component are arranged in the welded pipe, and the adjustment component adjusts the inner scraper component so that it is arranged at the weld seam of the inner wall of the thin-walled welded pipe. The upper guide roller and the support roller of the inner scraper component cooperate with each other, and the adjustment component and the inner tie rod component pull the inner scraper component to move in the welded pipe. The inner welding slag can be scraped off during the online production of the thin-walled welded pipe, and the subsequent work section operation can be directly carried out after the thin-walled welded pipe is cut off, which reduces the cumbersome process of scraping off the inner welding slag offline, and greatly reduces the manpower and material cost of the process. Thus, the advantages of the online internal scraping mechanism are good stability, convenient adjustment, high production efficiency, etc.

Description

Technical Field

[0001] The invention relates to the field of thin-wall aluminum welded pipes, and in particular to an internal scraping mechanism for thin-wall welded pipes. Background Art

[0002] In the field of thin-walled aluminum welded pipes, during the online production of thin-walled aluminum welded pipes, the welding slag generated inside the welded pipe after high-frequency welding of the material strip is difficult to clean. The current cleaning method is to cut the thin-walled aluminum welded pipe and then scrape it internally. This method not only has low internal scraping efficiency, but also has high manpower and material costs.

[0003] There is a lack of technical precedents for online cleaning of internal welding slag in thin-walled aluminum welded pipes in the existing technology, and it is imperative to require online internal scraping technology for thin-walled aluminum welded pipes. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is a thin-walled welded pipe inner pipe mechanism, and its technical solution is as follows:

[0005] It includes an adjustment component, an inner tie rod component and an inner scraper component. The adjustment component is fixed on a frame, the inner tie rod component is fixed on the adjustment component, the inner tie rod component is perpendicular to the adjustment component, the inner scraper component is fixed at the tail of the inner tie rod component, and the inner tie rod component and the inner scraper component are both arranged in a welded pipe.

[0006] Furthermore, the adjustment component includes an adjustment component fixing plate fixed on the frame, a fixing seat installed on the back of the fixing plate, an adjustment screw fixing plate installed on the top of the fixing plate, an adjustment screw installed on the adjustment screw fixing plate, and an inner pull rod connecting plate fixed to the adjustment screw, wherein the inner pull rod connecting plate is perpendicular to the adjustment screw fixing plate.

[0007] Furthermore, the inner pull rod assembly is divided into three parts: front, middle and rear. The front and rear parts are respectively installed with connecting rod assemblies, and the middle part is installed with a high-strength insulating rod assembly. The two ends of the high-strength insulating rod assembly are respectively fixedly connected to the front connecting rod assembly and the rear connecting rod assembly through high-strength insulating rod fixing plates. The front end of the front connecting rod assembly is fixedly connected to the inner pull rod connecting plate of the adjusting assembly, and the tail of the rear connecting rod assembly is fixedly connected to the inner scraper assembly.

[0008] Furthermore, the connecting rod assembly includes at least two mutually parallel connecting rods, a locking nut and a connecting rod joint, wherein one end of one connecting rod is fixedly connected to the connecting rod joint through a locking nut, and the other end of the connecting rod joint is fixedly connected to the high-strength insulating rod fixing plate through a locking nut.

[0009] Furthermore, the high-strength insulating rod assembly includes at least two mutually parallel high-strength insulating rods, a hollow insulating tube and a high-strength insulating rod connecting rod, high-strength insulating rod connecting rods are respectively installed at both ends of each high-strength insulating rod, and the other end of each high-strength insulating rod connecting rod is respectively fixedly connected to a high-strength insulating rod fixing plate; a hollow insulating tube is provided between two adjacent high-strength insulating rods, and an air pipe is provided in the hollow insulating tube, and the air pipe extends backward to the air pipe connector of the internal scraper assembly.

[0010] Furthermore, the inner scraper assembly comprises an inner scraper frame, a bracket, an upper guide roller and an inner scraper blade. The front end of the inner scraper frame is provided with an air pipe connector and an air ventilation channel is provided inside. Two upper guide rollers are installed on the top of the inner scraper frame, and the inner scraper blade is installed on the top of the rear portion. A bracket is fixedly mounted on the inner scraper frame, a groove is provided at the front end of the bracket, and a spring is installed in the groove. The spring is arranged inside the inner scraper frame, and an adjusting support roller is installed at the bottom of the bracket. An adjusting screw is also provided on the inner scraper frame. The adjusting screw is used to adjust the bracket and then adjust the supporting roller.

[0011] Furthermore, a groove is provided on the upper guide roller, the rolling direction of the roller is the same as the forward direction of the inner pull rod assembly, and the top end of the inner scraper blade is in the same straight line as the upper guide roller.

[0012] The beneficial effects of the present invention are as follows: the present invention is a thin-walled welded pipe internal scraping mechanism, which is combined with an adjustment component, an internal tie rod component and an internal scraper component. The internal tie rod component and the internal scraper component are arranged in the welded pipe, and the adjustment component adjusts the internal scraper component so that it is arranged at the weld seam of the inner wall of the thin-walled welded pipe. The upper guide roller and the support roller of the internal scraper component cooperate with each other, and the adjustment component and the internal tie rod component pull the internal scraper component to move in the welded pipe. The internal welding slag can be scraped off during the online production of the thin-walled welded pipe, and the subsequent work section operation can be directly carried out after the thin-walled welded pipe is cut off, which reduces the cumbersome process of scraping off the internal welding slag offline, and greatly reduces the manpower and material costs of the process. Thus, the advantages of the online internal scraping mechanism are good stability, convenient adjustment, and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the middle adjustment component;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the inner tie rod assembly;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the inner scraper assembly;

[0017] Figure 5 for Figure 4 Sectional view;

[0018] As shown in the figure, 1 is an adjustment component, 2 is an inner pull rod component, 3 is an inner scraper component, 4 is an adjustment component fixing plate, 5 is an adjustment screw, 6 is an adjustment screw fixing plate, 7 is a fixing seat, 8 is a slider, 9 is an inner pull rod connecting plate, 10 is a connecting rod, 11 is a locking nut, 12 is a connecting rod joint, 13 is a high-strength insulating rod fixing plate, 14 is a high-strength insulating rod, 15 is a hollow insulating tube, 16 is a high-strength insulating rod connecting rod, 17 is an air pipe connector, 18 is a scraper frame, 19 is an adjustment screw, 20 is an upper guide roller, 21 is an inner scraper blade, 22 is a bracket, 23 is a support roller, 24 is an air channel, 25 is a connecting rod insertion hole, 26 is a spring, and 27 is a screw. DETAILED DESCRIPTION

[0019] As shown in the figure, the present invention is an internal scraping mechanism for a thin-walled welded pipe, comprising an adjusting component 1, an inner tie rod component 2 and an inner scraper component 3, the inner tie rod component is fixed on the adjusting component, the inner tie rod component is perpendicular to the adjusting component, the inner scraper component is fixed at the tail of the inner tie rod component, and the inner tie rod component and the inner scraper component are both arranged in the welded pipe.

[0020] The adjusting assembly comprises an adjusting assembly fixing plate 4, a fixing seat 7, an adjusting screw fixing plate 6, an adjusting screw 5 and an inner pull rod connecting plate 9. The adjusting assembly fixing plate is arranged horizontally, is provided with mounting holes, and is fixedly installed on the high-frequency welding front forming frame of the thin-walled welded pipe production line by bolts; the adjusting screw fixing plate is fixedly installed by bolts at the top of the middle part of the adjusting assembly fixing plate, and the cross-section of the adjusting screw fixing plate is L-shaped, and its short side corresponds to the top of the adjusting assembly fixing plate, and the long side faces backward; the fixing seat 7 is fixedly installed at the lower part of the long side and on the adjusting assembly fixing plate, and a slide groove is longitudinally arranged in the middle part of the fixing seat; upper and lower adjusting screws 5 are arranged on the long side of the screw fixing plate, and the adjusting screw passes through the adjusting screw fixing plate, and a slide seat 8 is fixed at the lower part, and the slide seat is arranged in the slide groove; the inner pull rod connecting plate 9 is fixedly installed by bolts on one side of the slide seat, and the inner pull rod connecting plate is longitudinally arranged away from the slide groove and extends downward, and a plurality of mounting holes are arranged at the lower part of the inner pull rod connecting plate, Figure 2 There are three mounting holes in the middle.

[0021] like Figure 1 and 3As shown, the inner tie rod assembly is arranged horizontally and is perpendicular to the inner tie rod connecting plate. The inner tie rod assembly is divided into three parts: the front part, the middle part and the rear part. The connecting rod assembly is installed in the front part and the rear part respectively, and the high-strength insulating rod assembly is installed in the middle part. The high-strength insulating rod assembly includes two high-strength insulating rods 14 parallel to each other, a hollow insulating tube 15 and a high-strength insulating rod connecting rod 16. The two ends of each high-strength insulating rod are respectively installed with high-strength insulating rod connecting rods. The other end of each high-strength insulating rod connecting rod is respectively fixedly connected to the high-strength insulating rod fixing plate 13. The high-strength insulating rod fixing plate is arranged longitudinally and is perpendicular to the connecting rod. A hollow insulating tube is provided between the two high-strength insulating rods, and a ventilating tube is provided in the hollow insulating tube. The ventilating tube extends backward to the ventilating tube connector of the inner scraper assembly. The connecting rod assembly includes two parallel connecting rods 10, a locking nut 11 and a connecting rod joint 12; the front end of the front connecting rod passes through the mounting hole at the bottom of the inner pull rod connecting plate and is fixed by bolts, the rear end of the connecting rod is fixedly connected to the connecting rod joint by a locking nut, and the other end of the connecting rod joint is fixedly connected to the high-strength insulating rod fixing plate by a locking nut; the front end of the rear connecting rod is installed with a connecting rod joint, one end of the connecting rod joint is fixed to the high-strength insulating rod fixing plate by a locking nut, and the other end is fixed to one end of the connecting rod by a locking nut, and the inner scraper assembly is fixedly installed on the other end of the connecting rod.

[0022] like Figure 4 and 5 As shown, the inner scraper assembly includes an inner scraper frame 18, a bracket 22, an upper guide roller 20 and an inner scraper blade 21. The front end of the inner scraper frame is provided with an air pipe connector 17 and a connecting rod insertion hole 25. A ventilation channel 24 is provided on the inner scraper frame. The air pipe connector corresponds to the ventilation channel, which is convenient for cooling the inner scraper blade; connecting rod insertion holes are respectively provided on the upper and lower sides of the ventilation channel, and their axial directions are parallel to each other; two upper guide rollers and inner scraper blades are installed on the inner scraper frame, the upper guide rollers are arranged front and back, and on the same straight line, the tip of the inner scraper blade is on the same straight line with the upper plane of the upper guide roller, and the inner scraper blade is fixed to the inner scraper frame by a screw 27; each upper guide roller is respectively provided with a groove, the movement direction of the roller is the same as the movement direction of the connecting rod, and the weld of the inner wall of the welded pipe is arranged at the groove.

[0023] A bracket is installed on the inner scraper frame body, and a groove is provided at the front end of the bracket. A spring 26 is installed in the groove. The spring is arranged inside the scraper frame body. The function of the spring is to make the support roller 23 have an upward force to prevent the support roller 23 from sagging naturally, which is convenient for feeding before starting the machine; an adjustable support roller 23 is installed at the bottom of the bracket, and an adjusting screw 19 is also provided on the inner scraper frame body. The adjusting screw is arranged longitudinally and passes through the inner scraper frame body to adjust the bracket, so as to adjust the upper and lower positions of the support roller. By adjusting the support roller, the upper guide roller is ensured to fit the welding side of the thin-walled welded pipe (i.e., the upper weld of the inner wall of the thin-walled welded pipe). The groove in the middle of the upper guide roller is to avoid the weld and play a supporting and guiding role, so as to ensure that the inner scraper blade can smoothly scrape off the welding slag.

[0024] The present invention is a thin-walled welded pipe internal scraping mechanism, which is combined with an adjustment component, an inner pull rod component and an inner scraper component. The inner pull rod component and the inner scraper component are arranged in the welded pipe. By rotating the upper and lower adjustment screws, the upper and lower positions of the inner pull rod connecting plate are adjusted through the fixed seat and the slide seat guide to ensure the position of the inner scraper component in the thin-walled welded pipe. The adjustment component is a fixed part in the inner scraper component. The purpose of its up and down adjustment is also to make preliminary adjustments to the overall position of the inner scraper to adapt to pipes of different sizes. The purpose of the high-strength insulating rod and hollow insulating tube in the inner pull rod component is to pass through the high-frequency welding coil, and the air pipe is passed inside the hollow insulating tube to cool the inner scraper blade in the rear inner scraper component. The connecting rod is flexible to facilitate locking, adjustment and fixing when connecting the rear section of the inner scraper component, so as to ensure that the inner scraper component has a small amount of free adjustment space. The air pipe connector of the inner scraper assembly can be quickly connected to the front air pipe and takes up little space for installation. The scraper frame and the connecting rod are fixed with a locking nut. The adjusting screw adjusts the support frame and then adjusts the upper and lower positions of the support rollers. By adjusting the support rollers, the upper guide rollers are ensured to fit the welding side of the thin-walled welded pipe to achieve the purpose of scraping off the welding slag.

[0025] The present invention can directly carry out subsequent work after the thin-walled welded pipe is cut, reducing the cumbersome process of scraping off the internal welding slag offline, and greatly reducing the manpower and material costs of the process. Thus, the online internal scraping mechanism has the advantages of good stability, convenient adjustment, high production efficiency, etc.

[0026] The above examples of the present invention are described in detail, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A thin-walled welded pipe internal scraping mechanism, comprising an adjustment assembly, an internal pull rod assembly and an internal scraper assembly, characterized in that: The adjusting assembly is fixed on the frame, the inner tie rod assembly is fixed on the adjusting assembly, the inner tie rod assembly is perpendicular to the adjusting assembly, the inner scraper assembly is fixed at the tail of the inner tie rod assembly, and the inner tie rod assembly and the inner scraper assembly are both arranged in the welded pipe; The adjustment assembly includes an adjustment assembly fixing plate fixed on the frame, a fixing seat installed on the back of the fixing plate, an adjustment screw fixing plate installed on the top of the fixing plate, an adjustment screw installed on the adjustment screw fixing plate, and an inner pull rod connecting plate fixed to the adjustment screw, wherein the inner pull rod connecting plate is perpendicular to the adjustment screw fixing plate; The inner tie rod assembly is divided into three parts: the front part, the middle part and the rear part. The front part and the rear part are respectively installed with connecting rod assemblies, and the middle part is installed with a high-strength insulating rod assembly. The two ends of the high-strength insulating rod assembly are respectively fixedly connected with the front connecting rod assembly and the rear connecting rod assembly through high-strength insulating rod fixing plates. The front end of the front connecting rod assembly is fixedly connected with the inner tie rod connecting plate of the adjustment assembly, and the tail of the rear connecting rod assembly is fixedly connected with the inner scraper assembly. The connecting rod assembly includes at least two parallel connecting rods, a locking nut and a connecting rod joint, wherein one end of one connecting rod is fixedly connected to the connecting rod joint through a locking nut, and the other end of the connecting rod joint is fixedly connected to a high-strength insulating rod fixing plate through a locking nut.

2. A thin-walled welded pipe internal scraping mechanism as claimed in claim 1, characterized in that: The high-strength insulating rod assembly includes at least two mutually parallel high-strength insulating rods, a hollow insulating tube and a high-strength insulating rod connecting rod. High-strength insulating rod connecting rods are respectively installed at both ends of each high-strength insulating rod, and the other end of each high-strength insulating rod connecting rod is respectively fixedly connected to a high-strength insulating rod fixing plate; a hollow insulating tube is provided between two adjacent high-strength insulating rods, and a ventilation tube is provided in the hollow insulating tube, and the air tube extends backward to the air tube connector of the inner scraper assembly.

3. The internal scraping mechanism for a thin-walled welded pipe as claimed in claim 1, characterized in that: The inner scraper assembly comprises an inner scraper frame, a bracket, an upper guide roller and an inner scraper blade. An air pipe connector is provided at the front end of the inner scraper frame, and an air vent is provided inside. Two upper guide rollers are installed on the top of the inner scraper frame, and an inner scraper blade is installed at the top of the rear portion. A bracket is fixedly mounted on the inner scraper frame, a groove is provided at the front end of the bracket, a spring is installed in the groove, and the spring is arranged inside the inner scraper frame. A support roller is installed at the bottom of the bracket, and an adjusting screw is also provided on the inner scraper frame. The adjusting screw is used to adjust the bracket and then adjust the supporting roller.

4. A thin-walled welded pipe internal scraping mechanism as claimed in claim 3, characterized in that: The upper guide roller is provided with a groove, the rolling direction of the roller is the same as the forward direction of the inner pull rod assembly, and the top end of the inner scraper blade is in the same straight line as the upper guide roller.

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