Flying saw hydraulic pipe cutting mechanism of high-frequency longitudinal welded pipe unit

Abstract

The utility model belongs to the field of pipe cutting mechanisms, and particularly relates to a high-frequency longitudinal welded pipe unit flying saw hydraulic pipe cutting mechanism which comprises a support, a first hydraulic cylinder is fixedly installed on the top of the support, the output end of the first hydraulic cylinder is fixedly connected with a lifting plate, and a second hydraulic cylinder is fixedly installed on one side of the lifting plate. The output end of the second hydraulic cylinder is fixedly connected with cutting equipment, and a protecting mechanism is arranged in an inner cavity of the support. Two groups of protection plates in the protection mechanism are combined into a whole in an adjustable spacing manner, a cutting groove and an arc-shaped groove are combined and communicated after the protection plates are combined, a welding pipe to be cut penetrates through the arc-shaped groove, and when a tangency point of the welding pipe is arranged in the cutting groove, sparks generated in the cutting process are shielded on the inner walls of the protection plates, so that the cutting efficiency is improved. And the air exhaust equipment has the effect that negative pressure is generated at the air suction holes through the air exhaust pipe, and scrap iron and air generated in the cutting process are extracted into the inner cavity of the protection plate to be stored.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting mechanisms, specifically a high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism. Background Technology

[0002] The flying saw hydraulic pipe cutting mechanism in the high-frequency straight seam welded pipe unit is one of the key pieces of equipment on the welded pipe production line. It is responsible for cutting the welded pipe with high precision. The working principle of the flying saw hydraulic pipe cutting mechanism is mainly based on hydraulic transmission and synchronous control technology. During the sawing process, the saw blade rotates around the saw axis and moves at the same speed as the steel pipe, thereby ensuring that the cut surface is straight. When the welded pipe reaches the required length, the high-speed rotating saw blade on the flying saw presses against the steel pipe under the drive of the hydraulic system, cutting it off.

[0003] However, traditional flying saw hydraulic pipe cutting mechanisms lack a shielding structure on their surface. On the one hand, when cutting steel pipes, a large number of sparks are generated due to high temperature and friction. These sparks may not only ignite flammable materials and cause fires, but may also splash onto the human body, causing burns or scalds. On the other hand, a large amount of metal dust is generated during the cutting process. Long-term exposure to this environment can damage the respiratory system and even cause occupational diseases such as pneumoconiosis. At the same time, the dust may also enter the eyes, causing eye discomfort or damage. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the cutting process generates a large amount of metal dust. Long-term exposure to this environment can damage the respiratory system and even cause occupational diseases such as pneumoconiosis. At the same time, the dust may also enter the eyes, causing eye discomfort or damage. This utility model proposes a high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism, including a bracket, a first hydraulic cylinder is fixedly installed on the top of the bracket, a lifting plate is fixedly connected to the output end of the first hydraulic cylinder, the surface of the lifting plate is set in the inner cavity of the bracket, a second hydraulic cylinder is fixedly installed on one side of the lifting plate, a cutting device is fixedly connected to the output end of the second hydraulic cylinder, and a protective mechanism is provided in the inner cavity of the bracket;

[0006] The protective mechanism includes a protective plate, one side of which is attached to the inner wall of the support. A cutting groove is provided on the top of the protective plate, and an arc-shaped groove is provided on one side of the protective plate. An air suction hole is provided on the inner wall of the arc-shaped groove. The number of air suction holes is several. An air extraction device is provided on one side of the support. An air extraction pipe is fixedly connected to the input end of the air extraction device, and one end of the air extraction pipe is fixedly connected to the inner cavity of the protective plate.

[0007] Preferably, the inner cavity of the protective plate is provided with a scraper, a push rod is fixedly connected to one side of the scraper, the surface of the push rod is slidably connected to the inner cavity of the protective plate, a push plate is fixedly connected to one end of the push rod, and a sealing plate is fixedly inserted into the inner wall of the protective plate.

[0008] Preferably, a spring is fitted onto the surface of the push rod, with one end of the spring fixedly connected to the protective plate and the other end of the spring fixedly connected to the push plate.

[0009] Preferably, a mounting base is fixedly connected to the inner wall of the arc-shaped groove, and a pad is fixedly connected to one side of the mounting base.

[0010] Preferably, a first guide rod is fixedly connected to one side of the lifting plate, and the surface of the first guide rod is slidably connected to the inner cavity of the bracket.

[0011] Preferably, a transmission rod is fixedly connected to one side of the lifting plate, a reinforcing ring is slidably connected to the surface of the transmission rod, one side of the reinforcing ring is fixedly connected to the inner wall of the bracket, one end of the transmission rod is rotatably connected to a connecting rod, and one end of the connecting rod is rotatably connected to one side of the protective plate.

[0012] Preferably, a second guide rod is fixedly connected to one side of the protective plate, the surface of the second guide rod is slidably connected to the inner cavity of the bracket, and a limit plate is fixedly connected to one end of the second guide rod.

[0013] The advantages of this utility model are:

[0014] This invention combines two sets of adjustable protective plates in the protective mechanism into a single unit. After the protective plates are combined, the cutting groove and the arc groove are connected. When the welded pipe to be cut passes through the arc groove and the cutting point of the welded pipe is placed in the cutting groove, the second hydraulic cylinder can push the cutting equipment down. The blade in the cutting equipment passes through the cutting groove to cut the welded pipe in the arc groove, thus achieving the effect of shielding the sparks generated during the cutting process on the inner wall of the protective plate. The air extraction device creates negative pressure at the air intake through the air extraction pipe, which extracts the iron filings and gas generated during the cutting process into the inner cavity of the protective plate for storage. This solves the problem that a large amount of metal dust is generated during the cutting process. Long-term exposure to this environment can damage the respiratory system and even cause occupational diseases such as pneumoconiosis. At the same time, the dust may also enter the eyes, causing eye discomfort or damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall device of this utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment of the protective plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the inner cavity structure of the protective plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0020] In the diagram: 1. Bracket; 2. First hydraulic cylinder; 3. Lifting plate; 4. Second hydraulic cylinder; 5. Cutting equipment; 6. Protective mechanism; 601. Protective plate; 602. Cutting groove; 603. Arc groove; 604. Suction hole; 605. Air extraction equipment; 606. Air extraction pipe; 7. First guide rod; 8. Scraper; 9. Push rod; 10. Push plate; 11. Spring; 12. Mounting base; 13. Pad; 14. Transmission rod; 15. Reinforcing ring; 16. Connecting rod; 17. Second guide rod; 18. Limiting plate; 19. Sealing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a hydraulic pipe cutting mechanism for a high-frequency straight seam welded pipe unit using a flying saw. (Refer to...) Figures 1 to 3A high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism includes a support 1, a first hydraulic cylinder 2 fixedly installed on the top of the support 1, a lifting plate 3 fixedly connected to the output end of the first hydraulic cylinder 2, a first guide rod 7 fixedly connected to one side of the lifting plate 3, the surface of the first guide rod 7 slidingly connected to the inner cavity of the support 1, the surface of the lifting plate 3 being disposed in the inner cavity of the support 1, a second hydraulic cylinder 4 fixedly installed on one side of the lifting plate 3, a cutting device 5 fixedly connected to the output end of the second hydraulic cylinder 4, and a protective mechanism 6 disposed in the inner cavity of the support 1.

[0024] The protective mechanism 6 includes a protective plate 601, one side of which is attached to the inner wall of the support 1. A cutting groove 602 is formed on the top of the protective plate 601, and an arc-shaped groove 603 is formed on one side of the protective plate 601. Suction holes 604 are formed on the inner wall of the arc-shaped groove 603. The number of suction holes 604 is several. An air extraction device 605 is provided on one side of the support 1. An air extraction pipe 606 is fixedly connected to the input end of the air extraction device 605. One end of the air extraction pipe 606 is fixedly connected to the inner cavity of the protective plate 601. In this high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism, the support 1 plays a major supporting and initial protection role. The two components in the protective mechanism 6... The adjustable spacing of the protective plates 601 is combined into a whole. After the protective plates 601 are combined, the cutting groove 602 and the arc groove 603 are connected. The welded pipe to be cut passes through the arc groove 603. When the cutting point of the welded pipe is placed in the cutting groove 602, the second hydraulic cylinder 4 can push the cutting device 5 to lower. The blade in the cutting device 5 passes through the cutting groove 602 to cut the welded pipe in the arc groove 603. The sparks generated during the cutting process are blocked on the inner wall of the protective plate 601. The air extraction device 605 creates a negative pressure at the air extraction hole 604 through the air extraction pipe 606, and extracts the iron filings and gas generated during the cutting process into the inner cavity of the protective plate 601 for storage.

[0025] Reference Figure 1 and Figure 4 The inner cavity of the protective plate 601 is provided with a scraper 8. A push rod 9 is fixedly connected to one side of the scraper 8. The surface of the push rod 9 is slidably connected to the inner cavity of the protective plate 601. A push plate 10 is fixedly connected to one end of the push rod 9. A sealing plate 19 is fixedly inserted into the inner wall of the protective plate 601. A spring 11 is sleeved on the surface of the push rod 9. One end of the spring 11 is fixedly connected to the protective plate 601 and the other end of the spring 11 is fixedly connected to the push plate 10. Through the scraper 8, the sealing plate 19 can seal and block the port on one side of the protective plate 601. By pushing the push rod 9 and the scraper 8 through the push plate 10 set to the outside, the scraper 8 can push out the iron filings stored in the inner bottom surface of the protective plate 601 to ensure the cleanliness of the cavity. While pushing the push plate 10, the spring 11 is squeezed. Through the rebound characteristic of the spring 11, the scraper 8 can be reset after scraping.

[0026] Reference Figure 3The inner wall of the arc groove 603 is fixedly connected to the mounting base 12, and a pad 13 is fixedly connected to one side of the mounting base 12. The mounting base 12 plays the main connecting role through the pad 13. The appropriate number of pads 13 are selected according to the outer diameter of the welded pipe. All pads 13 are fixedly installed on one side of the mounting base 12. When the protective plate 601 is assembled, the surface of the welded pipe can be squeezed by the pads 13 to improve the stability of the welded pipe during cutting.

[0027] Reference Figure 2 A transmission rod 14 is fixedly connected to one side of the lifting plate 3. A reinforcing ring 15 is slidably connected to the surface of the transmission rod 14. One side of the reinforcing ring 15 is fixedly connected to the inner wall of the bracket 1. One end of the transmission rod 14 is rotatably connected to a connecting rod 16. One end of the connecting rod 16 is rotatably connected to one side of the protective plate 601. Through the transmission rod 14, a certain angle is formed between the transmission rod 14 and the connecting rod 16. The first hydraulic cylinder 2 can push the lifting plate 3 to adjust its height. When the position of the lifting plate 3 is lowered, the angle between the transmission rod 14 and the connecting rod 16 is reduced, thereby pushing the distance between the two sets of protective plates 601 to decrease and merge. The stability of the transmission rod 14 is improved by the reinforcing ring 15.

[0028] Reference Figure 1 and Figure 2 A second guide rod 17 is fixedly connected to one side of the protective plate 601. The surface of the second guide rod 17 is slidably connected to the inner cavity of the bracket 1. One end of the second guide rod 17 is fixedly connected to a limit plate 18. Through the second guide rod 17, the transmission rod 14 and the connecting rod 16 push the protective plate 601 to move, while the protective plate 601 drives the second guide rod 17 to slide along the inner cavity of the bracket 1, thereby improving the stability of the adjustment spacing of the protective plate 601.

[0029] Working principle: The welded pipe is conveyed to the inner cavity of the support 1 by an external conveying device. A suitable number of pads 13 are selected according to the outer diameter of the welded pipe. All pads 13 are fixedly installed on one side of the mounting base 12. When the protective plates 601 are combined, the surface of the welded pipe is pressed by the pads 13. Simultaneously, the first hydraulic cylinder 2 can push the lifting plate 3 to adjust its height. When the lifting plate 3 is lowered, the angle between the transmission rod 14 and the connecting rod 16 decreases, thereby reducing the distance between the two sets of protective plates 601 and allowing them to combine. After the protective plates 601 are combined, a cutting groove 602 is formed. The arc-shaped groove 603 is connected to the welded pipe to be cut. When the cutting point of the welded pipe is placed in the cutting groove 602, the second hydraulic cylinder 4 can push the cutting device 5 down. The blade in the cutting device 5 passes through the cutting groove 602 to cut the welded pipe in the arc-shaped groove 603. The sparks generated during the cutting process are blocked on the inner wall of the protective plate 601. The air extraction device 605 creates a negative pressure at the air extraction hole 604 through the air extraction pipe 606, and extracts the iron filings and gas generated during the cutting process into the inner cavity of the protective plate 601 for storage.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism, characterized in that: The bracket (1) includes a support frame (1), a first hydraulic cylinder (2) is fixedly installed on the top of the support frame (1), a lifting plate (3) is fixedly connected to the output end of the first hydraulic cylinder (2), the surface of the lifting plate (3) is disposed in the inner cavity of the support frame (1), a second hydraulic cylinder (4) is fixedly installed on one side of the lifting plate (3), a cutting device (5) is fixedly connected to the output end of the second hydraulic cylinder (4), and a protective mechanism (6) is provided in the inner cavity of the support frame (1). The protective mechanism (6) includes a protective plate (601), one side of which is attached to the inner wall of the bracket (1). A cutting groove (602) is provided on the top of the protective plate (601), and an arc-shaped groove (603) is provided on one side of the protective plate (601). An air suction hole (604) is provided on the inner wall of the arc-shaped groove (603). The number of air suction holes (604) is several. An air extraction device (605) is provided on one side of the bracket (1). An air extraction pipe (606) is fixedly connected to the input end of the air extraction device (605), and one end of the air extraction pipe (606) is fixedly connected to the inner cavity of the protective plate (601).

2. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 1, characterized in that: The inner cavity of the protective plate (601) is provided with a scraper (8), and a push rod (9) is fixedly connected to one side of the scraper (8). The surface of the push rod (9) is slidably connected to the inner cavity of the protective plate (601). One end of the push rod (9) is fixedly connected to a push plate (10), and a sealing plate (19) is fixedly inserted into the inner wall of the protective plate (601).

3. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 2, characterized in that: A spring (11) is fitted on the surface of the push rod (9). One end of the spring (11) is fixedly connected to the protective plate (601), and the other end of the spring (11) is fixedly connected to the push plate (10).

4. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 1, characterized in that: The inner wall of the arc-shaped groove (603) is fixedly connected to a mounting base (12), and a pad (13) is fixedly connected to one side of the mounting base (12).

5. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 1, characterized in that: A first guide rod (7) is fixedly connected to one side of the lifting plate (3), and the surface of the first guide rod (7) is slidably connected to the inner cavity of the bracket (1).

6. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 1, characterized in that: A transmission rod (14) is fixedly connected to one side of the lifting plate (3). A reinforcing ring (15) is slidably connected to the surface of the transmission rod (14). One side of the reinforcing ring (15) is fixedly connected to the inner wall of the bracket (1). One end of the transmission rod (14) is rotatably connected to a connecting rod (16). One end of the connecting rod (16) is rotatably connected to one side of the protective plate (601).

7. The high-frequency straight seam welded pipe unit flying saw hydraulic pipe cutting mechanism according to claim 1, characterized in that: A second guide rod (17) is fixedly connected to one side of the protective plate (601). The surface of the second guide rod (17) is slidably connected to the inner cavity of the bracket (1). One end of the second guide rod (17) is fixedly connected to a limit plate (18).

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