Rolling die for pipe welding unit

Abstract

According to the technical scheme, the rolling die for the pipe welding unit is characterized by comprising a base, a movable plate is arranged on the top face of the base, an installation frame is fixedly installed on the top face of the base and the top face of the movable plate, an installation hole is formed in the top face of the installation frame, a bearing is fixedly installed on the inner circle wall face of the installation hole, and the movable plate is fixedly installed on the inner circle wall face of the installation hole. A rotating shaft is rotationally mounted in the bearing, and a rolling mold is arranged outside the rotating shaft; by arranging the air blowing box, in the rotating process of the rotating shaft, a reciprocating screw rod is driven to rotate, a connecting cylinder on the reciprocating screw rod reciprocates up and down, so that a lifting plate is driven to ascend and descend up and down, a connecting rod on the lifting plate drives a piston plate to move in the air blowing box, air flow is generated in the air blowing box, and the air flow is sprayed out through an air outlet pipe at the bottom of the air blowing box; the blowing device directly acts on the rolling mold, impurities and dust on the surface of the rolling mold are blown away, the mold is kept clean, and the situation that when the rolling mold rolls a welded pipe, the surface of the welded pipe is prone to being damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of welded pipe processing, in particular to a roller pressing die for a welded pipe unit. Background Art

[0002] A pipe welding machine is a specialized machine used to manufacture welded steel pipes. It produces welded steel pipes of various sizes and specifications by rolling steel plates or strips into round or other shapes and welding the seams together using arc welding or high-frequency welding technology.

[0003] According to the Chinese patent application number: CN202222668051.4, an alignment clamping device for high-frequency pipe welding is disclosed, comprising an outer frame, the side surface of the outer frame is rotatably connected to a double-headed screw, the outer surface of the double-headed screw is threadedly connected to a No. 1 slide, one side of the No. 1 slide is located on the outer surface of the double-headed screw and is threadedly connected to a No. 2 slide, the upper surfaces of the No. 1 and No. 2 slides are both fixedly connected to fixed disks, and the upper surface of the fixed disks is fixedly connected to a rotating shaft. In the present utility model, the No. 1 and No. 2 slides with adjustable spacing improve the adaptability of the device to extrusion rollers of different specifications, and the height-adjustable insertion rod also improves the adaptability of the device to extrusion rollers of different specifications, further enabling the device to select extrusion rollers of appropriate specifications for pipes of different specifications, thereby solving the problem that the extrusion rollers of the alignment clamping device cannot be quickly disassembled, which further causes the clamping mold to be inconvenient to use.

[0004] At present, an alignment clamping device for high-frequency welded pipe welding still has some shortcomings. For example, when the roller mold is in use, dust or impurities accumulate on the roller mold, which can easily damage the surface of the welded pipe when the welded pipe is squeezed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a rolling die for a pipe welding unit, which solves the problems mentioned in the background art.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A rolling die for a pipe welding machine unit comprises: a base, a movable plate being provided on the top surface of the base, a mounting bracket being fixedly mounted on the top surfaces of the base and the movable plate, a mounting hole being provided on the top surface of the mounting bracket, a bearing being fixedly mounted on the inner circular wall surface of the mounting hole, a rotating shaft being rotatably mounted inside the bearing, and a rolling die being provided outside the rotating shaft; and a cleaning assembly being provided on the top surface of the mounting bracket for cleaning the rolling die.

[0008] Preferably, the cleaning assembly includes: two air boxes, piston plates are provided inside the two air boxes, a connecting rod is fixedly installed on the top surface of the piston plate, a movable hole is opened on the top surface of the air box, the connecting rod and the movable hole are movably sleeved together, a reciprocating screw is fixedly installed on the top surface of the rotating shaft, the external thread of the reciprocating screw is connected to a connecting tube, a lifting plate is fixedly installed on the top surface of the connecting tube, the lifting plate is fixedly connected to the connecting rod, and an air outlet pipe is provided on the bottom surface of the air box.

[0009] Preferably, a dust cover is provided at one end of the air outlet pipe.

[0010] Preferably, a one-way valve is provided outside the air outlet pipe.

[0011] Preferably, the top surface and the bottom surface of the rolling mold are both provided with fastening nuts, and the fastening nuts are threadedly connected to the rotating shaft.

[0012] Preferably, an adjustment hole is provided on one side of the movable plate, a screw rod is rotatably installed on one side of the inner side of the base, the screw rod is threadedly connected to the adjustment hole, a rotating hole is provided on one side of the base, one end of the screw rod passes through the rotating hole and extends to the outside, and a rotating head is fixed on one end of the screw rod.

[0013] In summary, the present invention has the following beneficial effects:

[0014] By setting up an air box, when the rotating shaft rotates, it drives the reciprocating screw to rotate, and the connecting cylinder on the reciprocating screw moves up and down, thereby driving the lifting plate to move up and down, and the connecting rod on the lifting plate drives the piston plate to move in the air box, and air flow is generated inside the air box. These air flows are ejected through the air outlet pipe at the bottom of the air box, and the dust cover on the air outlet pipe effectively prevents external dust and impurities from entering the air outlet pipe and the air box. Then, a one-way valve is used to ensure that the air flow flows in more than one direction, avoiding negative pressure when the piston plate rises, so that dust is adsorbed on the dust cover, and avoiding the dust on the dust cover being blown onto the rolling mold when the air is discharged next time. When the air flow directly acts on the rolling mold, it blows away the impurities and dust on its surface, keeps the mold clean, and avoids the rolling mold from easily causing damage to the surface of the welded pipe when rolling the welded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the lifting plate structure of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the air box of the utility model;

[0018] Figure 4 It is a schematic diagram of the base structure of the utility model.

[0019] Figure numerals: 1. base; 2. movable plate; 3. mounting frame; 4. bearing; 5. rotating shaft; 6. rolling die; 7. air box; 8. piston plate; 9. connecting rod; 10. lifting plate; 11. connecting cylinder; 12. reciprocating screw; 13. air outlet pipe; 14. one-way valve; 15. dust cover; 16. fastening nut; 17. adjusting hole; 18. screw; 19. rotating hole; 20. rotating head; 21. mounting hole; 22. movable hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figures 1-4 A roller die for a pipe welding unit comprises: a base 1, a movable plate 2 being provided on the top surface of the base 1, a mounting bracket 3 being fixedly mounted on the top surfaces of the base 1 and the movable plate 2, a mounting hole 21 being formed on the top surface of the mounting bracket 3, a bearing 4 being fixedly mounted on the inner circumferential wall surface of the mounting hole 21, a rotating shaft 5 being rotatably mounted inside the bearing 4, and a roller die 6 being provided on the outside of the rotating shaft 5; a cleaning assembly being provided on the top surface of the mounting bracket 3 for cleaning the roller die 6;

[0022] By providing a rotating shaft 5, when the pipe welding machine is in operation, the movable plate 2 and the mounting frame 3 on the base 1 fix the rolling die 6. As the rotating shaft 5 rotates, the rolling die 6 completes the roll forming of the welded pipe. As the rotating shaft 5 rotates, the friction coefficient is reduced by the bearing 4, which facilitates the rotation of the rotating shaft 5.

[0023] As a further solution of the present utility model, the cleaning assembly includes: two air boxes 7, piston plates 8 are provided inside the two air boxes 7, a connecting rod 9 is fixedly installed on the top surface of the piston plate 8, a movable hole 22 is opened on the top surface of the air box 7, the connecting rod 9 and the movable hole 22 are movably sleeved together, a reciprocating screw rod 12 is fixedly installed on the top surface of the rotating shaft 5, the external thread of the reciprocating screw rod 12 is connected to the connecting tube 11, a lifting plate 10 is fixedly installed on the top surface of the connecting tube 11, the lifting plate 10 is fixedly connected to the connecting rod 9, and an air outlet pipe 13 is provided on the bottom surface of the air box 7;

[0024] By setting up the air box 7, when the rotating shaft 5 rotates, the reciprocating screw 12 is driven to rotate, and the connecting tube 11 on the reciprocating screw 12 reciprocates up and down, thereby driving the lifting plate 10 to move up and down, and the connecting rod 9 on the lifting plate 10 drives the piston plate 8 to move in the air box 7, and airflow is generated inside the air box 7. These airflows are ejected through the air outlet pipe 13 at the bottom of the air box 7, directly acting on the rolling mold 6, blowing away impurities and dust on its surface, keeping the mold clean, and avoiding the rolling mold 6 from easily causing damage to the surface of the welded pipe when rolling the welded pipe.

[0025] As a further solution of the present invention, a dust cover 15 is provided at one end of the air outlet pipe 13;

[0026] By providing the dust cover 15 , the dust cover 15 effectively prevents external dust and impurities from entering the air outlet pipe 13 and the air box 7 , thereby protecting the internal components and avoiding blockage or damage to the air flow system caused by the entry of pollutants.

[0027] As a further solution of the present invention, a one-way valve 14 is provided outside the air outlet pipe 13;

[0028] By setting a one-way valve 14, when the air outlet pipe 13 is discharging air, it is ensured that the air flow flows in more than one direction, thereby avoiding the generation of negative pressure when the piston plate 8 rises, causing dust to be adsorbed on the dust cover 15, and avoiding the dust on the dust cover 15 being blown onto the rolling mold 6 when the air is discharged next time.

[0029] As a further solution of the present invention, the top and bottom surfaces of the rolling die 6 are provided with fastening nuts 16, and the fastening nuts 16 are threadedly connected to the rotating shaft 5;

[0030] By providing the fastening nuts 16 , the installation height of the rolling die 6 on the rotating shaft 5 can be adjusted by loosening the upper and lower fastening nuts 16 to adapt to the use of welded pipes of different sizes.

[0031] As a further solution of the present utility model, an adjustment hole 17 is opened on one side of the movable plate 2, and a screw rod 18 is rotatably installed on one side of the inner side of the base 1. The screw rod 18 is threadedly connected to the adjustment hole 17. A rotary hole 19 is opened on one side of the base 1. One end of the screw rod 18 passes through the rotary hole 19 and extends to the outside. One end of the screw rod 18 is fixedly sleeved with a rotary head 20;

[0032] By setting the screw rod 18, when the operator rotates the rotary head 20, the screw rod 18 rotates, and rotating the screw rod 18 causes the movable plate 2 to move along the direction of the base 1, thereby adjusting the position of the movable plate 2, thereby adjusting the distance between the two rolling dies 6, which can better adapt to different processing requirements.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling die for a pipe welding unit, characterized in that: include: A base (1), a movable plate (2) is provided on the top surface of the base (1), a mounting frame (3) is fixedly mounted on the top surfaces of the base (1) and the movable plate (2), a mounting hole (21) is provided on the top surface of the mounting frame (3), a bearing (4) is fixedly mounted on the inner circular wall surface of the mounting hole (21), a rotating shaft (5) is rotatably mounted inside the bearing (4), and a rolling die (6) is provided on the outside of the rotating shaft (5); A cleaning component is provided on the top surface of the mounting frame (3) and is used for cleaning the rolling mold (6).

2. The rolling die for a pipe welding machine according to claim 1, characterized in that: The cleaning component includes: Two air boxes (7), each of which is provided with a piston plate (8), a connecting rod (9) is fixedly mounted on the top surface of the piston plate (8), a movable hole (22) is opened on the top surface of the air box (7), the connecting rod (9) and the movable hole (22) are movably sleeved together, a reciprocating screw (12) is fixedly mounted on the top surface of the rotating shaft (5), the external thread of the reciprocating screw (12) is connected to a connecting tube (11), a lifting plate (10) is fixedly mounted on the top surface of the connecting tube (11), the lifting plate (10) is fixedly connected to the connecting rod (9), and an air outlet pipe (13) is provided on the bottom surface of the air box (7).

3. The rolling die for a pipe welding unit according to claim 2, characterized in that: One end of the air outlet pipe (13) is provided with a dust cover (15).

4. The rolling die for a pipe welding unit according to claim 2, characterized in that: A one-way valve (14) is provided outside the air outlet pipe (13).

5. The rolling die for a pipe welding unit according to claim 1, characterized in that: The top surface and the bottom surface of the rolling die (6) are both provided with fastening nuts (16), and the fastening nuts (16) are threadedly connected to the rotating shaft (5).

6. The rolling die for a pipe welding unit according to claim 1, characterized in that: An adjustment hole (17) is provided on one side of the movable plate (2), a screw rod (18) is rotatably mounted on one side of the interior of the base (1), the screw rod (18) being threadedly connected to the adjustment hole (17), a rotating hole (19) is provided on one side of the base (1), one end of the screw rod (18) passes through the rotating hole (19) and extends to the outside, and a rotating head (20) is fixedly sleeved on one end of the screw rod (18).

Images