Press roller mechanism of pipe making machine

Abstract

The utility model relates to a compression roller mechanism of a pipe making machine. The problem that in the prior art, an extrusion station and extrusion force of a compression roller are difficult to flexibly adjust is solved. The device comprises an upper roller frame, a plurality of feeding conveying compression rollers are arranged at the lower end of the upper roller frame, a sliding assembly box is connected to one side of the upper roller frame through a hanging frame mechanism, a lifting assembly is slidably installed in the sliding assembly box, and a compression roller structure is connected to the lower end of the lifting assembly; and one end of the sliding assembly box body is provided with a horizontal sliding driving mechanism which is used for driving the lifting assembly to slide in the assembly box body so as to enable the compression roller structure to be aligned with the feeding conveying compression roller at the lower end of the upper roller frame. The extrusion roller has the advantages that the extrusion stations of different pipe fittings can be switched, the integration degree is high, the height of the extrusion roller body can be longitudinally adjusted, and therefore the extrusion roller is suitable for extrusion of pipe fittings of more specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely relates to a pipe making machine pressure roller mechanism. BACKGROUND

[0002] The welding seam extrusion process of high-frequency electric welding steel pipe can be regarded as forge welding. In terms of the quality of welded steel pipe, the welding seam is the key. In the production process, the top forging and control equipment are called welding extrusion rollers. The traditional welding extrusion roller is mainly composed of a pair of vertically placed large rollers. When producing large-sized steel pipes, a pair of small inclined rollers is usually added above the large rollers. The disadvantage of this structure is that the curved surface shape of the extrusion roller leads to the surface scratch of the steel pipe due to the large difference between the throat diameter and the linear speed of the rim, and the two small inclined rollers are not easy to accurately adjust, thereby causing the pipe edge to be misaligned and the appearance of peach-shaped tip and other defects. In addition, the existing pressure roller structure is difficult to flexibly adjust the extrusion station according to different specifications of the pipe fittings when extruding the pipe fittings, and cannot adapt to the extrusion of pipe fittings with different diameters, resulting in long production line replacement time and low welding seam quality and flatness.

[0003] In order to solve the problems existing in the prior art, people have carried out long-term exploration and put forward various kinds of solutions. For example, a welding extrusion roller [CN200720003422.X] is disclosed in Chinese patent documents, which includes a gantry type frame for realizing the overall rigidity of the welding extrusion roller; one or more pairs of circumferential roller devices for replacing the vertical rollers in the prior art and adjusting the top roller device coaxially to form a closed pass to continuously apply a top forging force to the pipe blank heated to the welding temperature; and four smaller diameter rollers on the left and right and above and below for increasing the bite angle of the pipe fitting.

[0004] The above-mentioned scheme solves the problem of the extrusion roller being easy to scratch and difficult to adjust the accuracy to some extent, but the scheme still has many deficiencies, for example: it is difficult to flexibly adjust the extrusion station according to different specifications of the pipe fittings, it cannot adapt to the extrusion of pipe fittings with different diameters, resulting in long production line replacement time and low welding seam quality and flatness. SUMMARY

[0005] The utility model aims at the above -mentioned problem, provides a pipe making machine pressure roller mechanism.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a pipe making machine pressure roller mechanism, including upper roller frame, the upper roller frame lower extreme is equipped with a plurality of feeding conveying pressure roller, and the upper roller frame one side is connected with sliding assembly box through the hanger mechanism, the sliding assembly box is slidably installed with lifting assembly, lifting assembly lower extreme is connected with pressure roller structure, and the sliding assembly box one end is equipped with horizontal sliding drive mechanism for driving lifting assembly to slide in the assembly box, thereby making pressure roller structure and the feeding conveying pressure roller of upper roller frame lower extreme alignment.

[0007] In the pipe making machine pressure roller mechanism, the hanger mechanism comprises a positioning pressing plate connected with the upper end surface of the upper roller frame, and the lower end of the positioning pressing plate is provided with a connecting hanging plate arranged longitudinally.

[0008] In the pipe making machine pressure roller mechanism, one side of the sliding assembly box body is provided with a sliding connecting seat connected with the connecting hanging plate, and the two sides of the sliding connecting seat are provided with limiting side plates, and one end of the limiting side plates away from the sliding connecting seat is provided with a sliding support frame arranged in parallel with the sliding connecting seat.

[0009] In the pipe making machine pressure roller mechanism, the sliding assembly box body is arranged in an open manner up and down, and the inner walls of the sliding connecting seat and the sliding support frame are both provided with horizontal movement sliding grooves.

[0010] In the pipe making machine pressure roller mechanism, the lifting assembly comprises a horizontal connecting seat, a lifting lead screw is arranged in the horizontal connecting seat, and connecting sliding blocks are inserted into the horizontal movement sliding grooves on the two sides of the horizontal connecting seat.

[0011] In the pipe making machine pressure roller mechanism, the pressure roller structure comprises a pressure roller main body, the pressure roller main body is positioned on the pressure roller support through a pressure roller shaft, the pressure roller support is connected to the bottom of the lifting frame arranged on the lower side of the horizontal connecting seat, and the lifting frame is connected to the lifting lead screw.

[0012] In the pipe making machine pressure roller mechanism, a lifting motor is slidably arranged on the sliding support frame, and the output end of the lifting motor is connected to the lifting lead screw through a second umbrella-shaped gear and drives the lifting lead screw to lift and link.

[0013] In the pipe making machine pressure roller mechanism, the horizontal sliding drive mechanism comprises a horizontal drive motor arranged at one end of the sliding assembly box body, a speed reducer is arranged at the output end of the horizontal drive motor, and a driving shaft arranged in a vertical manner is connected to the output end of the horizontal drive motor through a second umbrella-shaped gear.

[0014] In the pipe making machine pressure roller mechanism, the driving shaft is connected to a horizontal movement shaft arranged in a horizontal manner through a third umbrella-shaped gear, and one end of the horizontal movement shaft is connected to the sliding assembly box body.

[0015] In the pipe making machine pressure roller mechanism, the limiting side plate is provided with a gap.

[0016] Compared with the prior art, the pipe making machine pressure roller mechanism has the advantages that different pipe extrusion stations can be switched through horizontal movement, more pipe extrusion stations on the production line can be adapted, the integration degree is high, the height of the extrusion roller main body can be adjusted longitudinally to adapt to the extrusion of more specifications of pipes, the flexibility is good, the adjustability is strong, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a top view of the utility model;

[0019] Figure 3 is a side view of the utility model;

[0020] Figure 4 is Figure 3 sectional view at A-A in figure;

[0021] In the figure: upper roller frame 1, feed conveying pressure roller 11, hanging frame mechanism 2, positioning pressing plate 21, connecting hanging plate 22, sliding assembly box 3, sliding connection seat 31, limiting side plate 32, sliding support frame 33, horizontal movement sliding groove 34, lifting assembly 4, horizontal connection seat 41, lifting lead screw 42, connecting sliding block 43, pressure roller structure 5, pressure roller main body 51, pressure roller shaft 52, pressure roller support 53, lifting frame 54, lifting motor 55, horizontal sliding drive mechanism 6, horizontal drive motor 61, speed reducer 62, drive shaft 63, horizontal movement shaft 64, let go of the gap 65. DETAILED DESCRIPTION

[0022] The utility model will be made further detailed explanation in combination with the drawings and specific implementation.

[0023] As Figures 1-4 Indicated, a kind of pipe making machine pressure roller mechanism, including upper roller frame 1, upper roller frame 1 lower end is equipped with several feed conveying pressure roller 11, and upper roller frame 1 side is connected with sliding assembly box 3 by hanging frame mechanism 2, sliding installation has lifting assembly 4 in sliding assembly box 3, lifting assembly 4 lower end is connected with pressure roller structure 5, and sliding assembly box 3 one end is equipped with the horizontal sliding drive mechanism 6 for driving lifting assembly 4 in assembly box sliding so that pressure roller structure 5 and the feed conveying pressure roller 11 of the lower end of upper roller frame 1 is aligned.

[0024] Wherein, hanging frame mechanism 2 includes the lower end of positioning pressing plate 21 connected with the upper end surface of upper roller frame 1 is equipped with the connecting hanging plate 22 being longitudinally arranged, and the sliding assembly box 3 of above-mentioned with the outer wall of connecting hanging plate 22.

[0025] The fixed position of positioning pressing plate 21 on upper roller frame 1 can be adjusted.

[0026] Visible, sliding assembly box 3 side has the sliding connection seat 31 connected with connecting hanging plate 22, limiting side plate 32 is equipped on the both sides of sliding connection seat 31, and the end of limiting side plate 32 away from sliding connection seat 31 is equipped with the sliding support frame 33 being mutually parallel with sliding connection seat 31.

[0027] Limiting side plate 32 is used for limiting the sliding position of horizontal connection seat 41.

[0028] Obviously, the sliding assembly box body 3 is open at the top and bottom, and the inner walls of the sliding connecting seat 31 and the sliding support frame 33 are provided with horizontal moving sliding grooves 34.

[0029] Further, the lifting assembly 4 comprises a horizontal connecting seat 41, the horizontal connecting seat 41 is provided with a lifting lead screw 42, and the horizontal connecting seat 41 is provided with a connecting sliding block 43 inserted into the horizontal moving sliding groove 34.

[0030] The lifting lead screw 42 is threadedly connected with the circumferential inner wall of the horizontal connecting seat 41, and the horizontal connecting seat 41 remains stationary when the lifting lead screw 42 is lifted.

[0031] Further, the pressure roller structure 5 comprises a pressure roller body 51 positioned on a pressure roller support 53 through a pressure roller shaft 52, the pressure roller support 53 is connected to the bottom of a lifting frame 54 provided on the lower side of the horizontal connecting seat 41, and the lifting frame 54 is connected to the lifting lead screw 42.

[0032] The lifting frame 54 is not connected with the horizontal connecting seat 41.

[0033] Specifically, the lifting motor 55 is slidably arranged on the sliding support frame 33, and the output end of the lifting motor 55 is connected to the lifting lead screw 42 through a second umbrella gear and drives the lifting lead screw 42 to lift in linkage.

[0034] The lifting motor 55 moves synchronously with the horizontal connecting seat 41, and the sliding support frame 33 is slidably connected with the lifting motor 55 through a sliding guide.

[0035] More specifically, the horizontal sliding drive mechanism 6 comprises a horizontal drive motor 61 provided at one end of the sliding assembly box body 3, the output end of the horizontal drive motor 61 is provided with a speed reducer 62, and the output end of the horizontal drive motor 61 is connected with a vertical drive shaft 63 through a second umbrella gear.

[0036] In detail, the drive shaft 63 is connected with a horizontal moving shaft 64 arranged horizontally through a third umbrella gear, and one end of the horizontal moving shaft 64 is connected with the sliding assembly box body 3.

[0037] Preferably, the limiting side plate 32 is provided with a gap 65.

[0038] In summary, the principle of the embodiment is that the horizontal drive motor 61 drives the horizontal connecting seat 41 to move horizontally in the sliding assembly box body 3, so as to change the working position of the pressure roller body 51, and realize different key extrusions in different positions; secondly, the lifting motor 55 drives the lifting lead screw 42 to lift, so as to drive the pressure roller body 51 to lift, and realize the adjustment of the extrusion force and the adjustment of the extrusion height according to the pipe thickness.

[0039] The specific embodiments described herein are merely illustrative of the present application. Various modifications or changes can be made to the specific embodiments described herein by those skilled in the art of the present application without departing from the spirit of the present application or exceeding the scope of the appended claims.

[0040] Although the terms upper roller frame 1, feeding conveying pressure roller 11, hanging frame mechanism 2, positioning pressing plate 21, connecting hanging plate 22, sliding assembly box 3, sliding connection seat 31, limiting side plate 32, sliding support frame 33, horizontal moving sliding groove 34, lifting assembly 4, horizontal connection seat 41, lifting lead screw 42, connecting sliding block 43, pressure roller structure 5, pressure roller main body 51, pressure roller shaft 52, pressure roller support 53, lifting frame 54, lifting motor 55, horizontal sliding driving mechanism 6, horizontal driving motor 61, speed reduction motor 62, driving shaft 63, horizontal moving shaft 64, and let go gap 65 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A pipe mill roller mechanism comprising an upper roller frame (1) provided with a plurality of feeding conveying rollers (11) at its lower end, and a sliding assembly box (3) connected to one side of the upper roller frame (1) through a hanger mechanism (2), characterized in that, The sliding assembly box (3) is slidably installed with a lifting assembly (4), the lower end of the lifting assembly (4) is connected with a compression roller structure (5), and one end of the sliding assembly box (3) is provided with a horizontal sliding drive mechanism (6) for driving the lifting assembly (4) to slide in the assembly box so that the compression roller structure (5) is aligned with the feed conveying compression roller (11) at the lower end of the upper roller frame (1).

2. A tube press mechanism according to claim 1, wherein The hanging rack mechanism (2) comprises a positioning pressing plate (21) connected with the upper end surface of the upper roller frame (1), and the lower end of the positioning pressing plate (21) is provided with a longitudinally arranged connecting hanging plate (22), and the sliding assembly box (3) is connected with the outer wall of the connecting hanging plate (22).

3. A tube press mechanism according to claim 2, wherein One side of the sliding assembly box (3) is provided with a sliding connection seat (31) connected with the connecting hanging plate (22), and the two sides of the sliding connection seat (31) are provided with limiting side plates (32), and one end of the limiting side plate (32) away from the sliding connection seat (31) is provided with a sliding support frame (33) arranged in parallel with the sliding connection seat (31).

4. A tube press mechanism according to claim 3, wherein The sliding assembly box (3) is arranged in an open manner up and down, and the inner walls of the sliding connection seat (31) and the sliding support frame (33) are both provided with horizontal moving sliding grooves (34).

5. A tube press mechanism according to claim 4, wherein The lifting assembly (4) comprises a horizontal connection seat (41), the horizontal connection seat (41) is provided with a lifting lead screw (42) inside, and the two sides of the horizontal connection seat (41) are provided with connecting sliding blocks (43) inserted into the horizontal moving sliding grooves (34).

6. A tube press mechanism according to claim 5, wherein The compression roller structure (5) comprises a compression roller main body (51), the compression roller main body (51) is positioned on the compression roller support (53) through the compression roller shaft (52), the compression roller support (53) is connected to the bottom of the lifting frame (54) arranged on the lower side of the horizontal connection seat (41), and the lifting frame (54) is connected with the lifting lead screw (42).

7. A tube press mechanism according to claim 6, wherein The sliding support frame (33) is slidably provided with a lifting motor (55), the output end of the lifting motor (55) is connected with the lifting lead screw (42) through a second umbrella gear and drives the lifting lead screw (42) to lift and link.

8. A tube press mechanism according to claim 7, wherein The horizontal sliding drive mechanism (6) comprises a horizontal drive motor (61) arranged at one end of the sliding assembly box (3), the output end of the horizontal drive motor (61) is provided with a speed reducer (62), and the output end of the horizontal drive motor (61) is connected with a vertically arranged drive shaft (63) through a second umbrella gear.

9. A tube press mechanism according to claim 8, wherein The drive shaft (63) is connected with a horizontally arranged horizontal moving shaft (64) through a third umbrella gear, and one end of the horizontal moving shaft (64) is connected with the sliding assembly box (3).

10. A tube press mechanism according to claim 8, wherein The limiting side plate (32) is provided with a gap (65).

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