Protective device for front table of straightening machine

Abstract

The utility model belongs to the technical field of pipe fitting straightening equipment, and particularly relates to a straightening machine front table protection device which comprises a guide cylinder and supporting seats, the guide cylinder is inserted into a plurality of the supporting seats, a bearing roller is arranged between the adjacent supporting seats on the guide cylinder, at least one part of circumferential cambered surface of the bearing roller extends into the guide cylinder, and at least one part of circumferential cambered surface of the bearing roller extends into the guide cylinder. And a plurality of limiting rollers are arranged on the supporting seat, extend into the guide cylinder in the radial direction and are positioned on the opposite side of the bearing roller. The guide cylinder is mounted at the feed port of the straightening machine, and the pipe fittings firstly pass through the guide cylinder and then enter the straightening machine, so that not only can the bent pipe fittings be more easily inserted into the straightening machine, but also the pipe fittings cannot collide with one another even if the pipe bodies exposed out of the straightening equipment shake due to the limitation of the guide cylinder in the straightening process; and the possibility of accidental injury is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe straightening equipment, and in particular relates to a front desk protective device for a straightening machine. Background Art

[0002] Straightening machines are equipment for straightening metal profiles, bars, pipes, wires, etc. Straightening machines use straightening rollers to squeeze bars and other materials to change their straightness. Generally, there are two rows of straightening rollers, with varying numbers. There are also two-roller straightening machines that rely on the angle change of the two rollers to straighten materials of different diameters. The main types include pressure straightening machines, balance roller straightening machines, shoe roller straightening machines, rotary reverse bending straightening machines, etc.

[0003] An aluminum profile straightening device disclosed in patent CN221018068U includes a fixed base and a connecting mechanism arranged inside the fixed base, the connecting mechanism includes a feeding assembly, a straightening assembly and a discharging assembly; the feeding assembly includes a feeding motor, a feeding inclined plate, a feeding roller and a C-shaped protective plate, the straightening assembly includes a rotating motor, a reducer, a lower straightening roller and an upper straightening roller, and the discharging assembly includes a discharging plate, a discharging stop bar, a discharging trough and a discharging trough; when the utility model is working, the feeding motor drives the feeding roller to rotate, the aluminum profile falls to the straightening groove, the rotating motor drives the lower straightening roller to rotate, the lower straightening roller and the upper straightening roller rotate together to realize the straightening operation of the aluminum profile, the straightened aluminum profile is extruded and falls onto the discharging plate, the discharging plate is flush with the straightening groove, to ensure that the straightened aluminum profile is not deformed, the straightened aluminum profile falls into the discharging trough through the discharging trough, and finally the aluminum profile is taken out through the discharging trough.

[0004] In the above scheme, although a C-shaped protective plate is installed at the front end of the fixed base to prevent the accidental bursting of materials and causing injuries during the pipe straightening process, there is a lack of a device to fix and guide the pipe fittings at the front end of the correction. During the correction process, the external pipe fittings will twist and swing, which will cause collisions between the pipe fittings and reduce product quality. Utility Model Content

[0005] The purpose of the utility model is to provide a front desk protection device for a straightening machine which can solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The front-end protection device of the straightening machine includes a guide cylinder and a support seat, wherein the guide cylinder is inserted into a plurality of the support seats, and a receiving roller is arranged between adjacent support seats on the guide cylinder, and at least a part of the circumferential arc surface of the receiving roller extends into the guide cylinder, and a plurality of limiting rollers are arranged on the support seat, and the limiting rollers radially extend into the guide cylinder and are located on the opposite side of the receiving roller.

[0008] In the front guard device of the straightening machine, a receiving bracket is arranged between the adjacent support seats, both ends of the receiving roller are rotatably connected to the receiving bracket, and the receiving bracket is detachably arranged on the outer wall of the guide tube.

[0009] In the front-end protection device of the straightening machine, a receiving roller opening is provided on the guide cylinder, the receiving roller extends into the guide cylinder from the receiving roller opening, and the receiving bracket abuts against the cut surface of the receiving roller opening.

[0010] In the front-end protection device of the straightening machine, the receiving bracket includes a holding ring and a clamping block. The holding ring is arranged around the guide cylinder, and the clamping blocks are arranged at the two ends of the holding ring. The clamping blocks cooperate and abut against the opening of the receiving roller, and the ends of the receiving roller are rotatably connected to the two clamping blocks.

[0011] In the front-end protection device of the straightening machine, a spring shock absorber is arranged on the clamping block, and the two ends of the receiving roller are connected to the clamping block through the spring shock absorber.

[0012] In the front-end protection device of the straightening machine, the holding ring includes an arc-shaped swing arm in contact with the guide cylinder, one end of the arc-shaped swing arm is hinged to the holding ring body, and the other end of the arc-shaped swing arm is lockably connected to the holding ring body.

[0013] In the front-end protection device of the straightening machine, a plurality of limiting holes are radially opened on the guide cylinder, and the limiting roller extends from the limiting holes into the interior of the guide cylinder.

[0014] In the front-end protection device of the straightening machine, an adjusting bolt is arranged on the supporting seat, the adjusting bolt points to the axis center line of the guide cylinder and is threadedly connected with the limiting roller.

[0015] In the front-end protection device of the straightening machine, the guide cylinder includes an outer shell and a protection layer, the protection layer is arranged on the inner wall of the outer shell, and the support seat acts on the outer arc surface of the outer shell.

[0016] In the front-end protection device of the straightening machine, an inclined feeding notch is provided at the feeding end of the guide cylinder, and the inclined feeding notch is opened on a side close to the receiving roller.

[0017] The advantages of the utility model are:

[0018] A guide cylinder is installed at the feed port of the straightening machine, allowing the pipe to pass through the guide cylinder before entering the straightening machine. This not only makes it easier to insert the bent pipe into the straightening machine, but also during the straightening process, the pipe body exposed outside the straightening equipment is restricted by the guide cylinder, so even if shaking occurs, the pipes will not collide with each other, reducing the possibility of accidental injury.

[0019] A receiving roller and a limiting roller are added inside the guide cylinder to stabilize the position of the pipe inside the cylinder, further preventing the pipe from colliding with the inner wall of the guide cylinder, and greatly improving the straightening effect of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 This is a schematic diagram of the support seat structure of the utility model.

[0022] In the figure, the guide cylinder 1, the receiving roller opening 11, the limiting hole 12, the outer shell 13, the protective layer 14, the inclined feed notch 15, the support seat 2, the limiting roller 21, the adjusting bolt 22, the receiving roller 3, the receiving bracket 31, the holding ring 32, and the clamping block 33. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.

[0024] like Figure 1-Figure 2 As shown, the front-end protection device of the straightening machine includes a guide cylinder 1 and a support seat 2. The guide cylinder 1 is inserted into a plurality of support seats 2. A receiving roller 3 is arranged between adjacent support seats 2 on the guide cylinder 1. At least a part of the circumferential arc surface of the receiving roller 3 extends into the guide cylinder 1. A plurality of limiting rollers 21 are arranged on the support seat 2. The limiting rollers 21 radially extend into the guide cylinder 1 and are located on the opposite side of the receiving roller 3.

[0025] That is, a guide cylinder 1 is installed at the feed port of the straightening machine, so that the pipe passes through the guide cylinder 1 before entering the straightening machine. This not only makes it easier to insert the bent pipe into the straightening machine, but also during the straightening process, the pipe body exposed outside the straightening equipment is restricted by the guide cylinder 1, so even if shaking occurs, the pipes will not collide with each other, thereby reducing the possibility of accidental injury.

[0026] In this embodiment, a receiving bracket 31 is provided between adjacent support seats 2 , and both ends of the receiving roller 3 are rotatably connected to the receiving bracket 31 . The receiving bracket 31 is detachably provided on the outer wall of the guide cylinder 1 .

[0027] The receiving bracket 31 is used to fix the receiving roller 3 on the guide cylinder 1 and extend the receiving roller 3 into the guide cylinder 1. The pipe in the guide cylinder 1 can slide axially against the receiving roller 3, avoiding friction between the pipe and the inner wall of the guide cylinder 1.

[0028] In this embodiment, a receiving roller opening 11 is formed on the guide cylinder 1 , the receiving roller 3 extends into the guide cylinder 1 from the receiving roller opening 11 , and the receiving bracket 31 abuts against a cut surface of the receiving roller opening 11 .

[0029] In order for the receiving roller 3 to be detachable and freely rotatable, it must not be in contact with the guide tube 1 , so the receiving bracket 31 is abutted against the cross section of the receiving roller opening 11 to stabilize the position of the receiving roller 3 .

[0030] In this embodiment, the receiving bracket 31 includes a ring 32 and a clamping block 33. The ring 32 is arranged around the guide tube 1, and the clamping block 33 is arranged at the two ends of the ring 32. The clamping block 33 cooperates and abuts against the receiving roller opening 11, and the end of the receiving roller 3 is rotatably connected with the two clamping blocks.

[0031] The holding ring 32 partially surrounds the guide tube 1 for at least half a circle, and fixes the receiving roller 3 at the receiving roller opening 11 in the form of a clamp. Both ends of the holding ring 32 are clamping blocks 33, and the clamping blocks 33 have the same shape and structure as the receiving roller opening 11. When the holding ring 32 is locked, the clamping blocks 33 cooperate and abut against the receiving roller opening 11, so that the receiving roller 3 can be positioned at the receiving roller opening 11 without contacting the guide tube 1.

[0032] Preferably, a spring shock absorber is provided on the clamping block 33 , and both ends of the receiving roller 3 are connected to the clamping block 33 via the spring shock absorber.

[0033] The two ends of the connecting shaft at the center of the receiving roller 3 are fixed on the spring shock absorbers on both sides, so that the receiving roller 3 can radially expand and contract relative to the guide tube 1. When the pipe swings during the correction process, the receiving roller 3 with radial elastic force cooperates with the limiting roller 21 to well buffer the swing of the pipe and prevent the pipe from excessively displacing and contacting the inner wall of the guide tube 1.

[0034] Preferably, the holding ring 32 includes an arc-shaped swing arm in contact with the guide cylinder 1, one end of the arc-shaped swing arm is hinged to the holding ring 32 body, and the other end of the arc-shaped swing arm is locked with the holding ring 32 body.

[0035] Since the receiving roller 3 needs to partially sink its roller surface into the receiving roller opening 11, it cannot be inserted from the end of the guide cylinder 1. Therefore, an arc-shaped swing arm lock with one end hinged and swinging is installed on the ring 32 to achieve radial installation of the receiving bracket 31.

[0036] In this embodiment, a plurality of limiting holes 12 are radially opened on the guide cylinder 1, and the limiting rollers 21 extend from the limiting holes into the guide cylinder 1 to cooperate with the receiving rollers 3 at the lower side to stabilize the position of the pipe.

[0037] In this embodiment, an adjusting bolt 22 is provided on the support seat 2 . The adjusting bolt 22 points to the axis of the guide cylinder 1 and is threadedly connected to the limiting roller 21 .

[0038] The adjusting bolt 22 is fixed on the support seat 2 and can rotate idly. The connecting end of the limit roller 21 is threadedly matched with the adjusting bolt 22, and the polygonal limit hole 12 just serves as a guide rail for limiting the rotation of the limit roller 21. When the adjusting bolt is rotated, the extension distance of the limit roller 21 to the guide cylinder 1 can be changed to adapt to the size of the pipe fitting.

[0039] In this embodiment, the guide cylinder 1 includes an outer shell 13 and a protective layer 14 . The protective layer 14 is arranged on the inner wall of the outer shell 13 , and the support seat 2 acts on the outer curved surface of the outer shell 13 .

[0040] The outer shell 13 has good structural strength, and needs to withstand the clamping of the receiving bracket 31 and keep the guide tube 1 straight. The protective layer 14 has good wear resistance and ductility to prevent the pipe from colliding with the inner wall of the guide tube 1 and damaging the pipe.

[0041] In this embodiment, an inclined feeding notch 15 is provided at one feeding end of the guide cylinder 1 , and the inclined feeding notch 15 is opened at a side close to the receiving roller 3 .

[0042] The pipe fitting to be corrected may have a larger bending angle, and the inclined feed notch 15 can provide a larger insertion angle for the bent pipe.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A front guard device for a straightening machine, comprising a guide cylinder (1) and a support seat (2), characterized in that: The guide cylinder (1) is inserted into a plurality of the support seats (2); a receiving roller (3) is arranged between adjacent support seats (2) on the guide cylinder (1); at least a portion of the circumferential arc surface of the receiving roller (3) extends into the guide cylinder (1); and a plurality of limiting rollers (21) are arranged on the support seat (2); the limiting rollers (21) radially extend into the guide cylinder (1) and are located on the opposite side of the receiving roller (3).

2. The front guard device of the straightening machine according to claim 1, characterized in that: A receiving bracket (31) is arranged between the adjacent support seats (2), and both ends of the receiving roller (3) are rotatably connected to the receiving bracket (31). The receiving bracket (31) is detachably arranged on the outer wall of the guide cylinder (1).

3. The front guard device of the straightening machine according to claim 2, characterized in that: The guide cylinder (1) is provided with a receiving roller opening (11), the receiving roller (3) extends into the guide cylinder (1) from the receiving roller opening (11), and the receiving bracket (31) abuts against the cut surface of the receiving roller opening (11).

4. The front guard device of the straightening machine according to claim 2, characterized in that: The receiving bracket (31) comprises an embracing ring (32) and a clamping block (33); the embracing ring (32) is arranged around the guide cylinder (1); the clamping blocks (33) are arranged at two ends of the embracing ring (32); the clamping blocks (33) are matched and abutted against the receiving roller opening (11); and the ends of the receiving roller (3) are rotatably connected to the two clamping blocks.

5. The front guard device of the straightening machine according to claim 4, characterized in that: The clamping block (33) is provided with a spring shock absorber, and the two ends of the receiving roller (3) are connected to the clamping block (33) via the spring shock absorber.

6. The front guard device of the straightening machine according to claim 5, characterized in that: The holding ring (32) includes a section of arc-shaped swing arm in contact with the guide cylinder (1), one end of the arc-shaped swing arm is hinged to the holding ring (32) body, and the other end of the arc-shaped swing arm is lockably connected to the holding ring (32) body.

7. The front guard device of the straightening machine according to claim 1, characterized in that: The guide cylinder (1) is radially provided with a plurality of limiting holes (12), and the limiting roller (21) extends from the limiting holes (12) into the interior of the guide cylinder (1).

8. The front guard device of the straightening machine according to claim 1, characterized in that: The support seat (2) is provided with an adjusting bolt (22), the adjusting bolt (22) points to the axis of the guide cylinder (1) and is threadedly connected to the limiting roller (21).

9. The front guard device of the straightening machine according to claim 1, characterized in that: The guide cylinder (1) comprises an outer shell (13) and a protective layer (14); the protective layer (14) is arranged on the inner wall of the outer shell (13); and the support seat (2) acts on the outer arc surface of the outer shell (13).

10. The front guard device of the straightening machine according to claim 1, characterized in that: An inclined feeding notch (15) is provided at one feeding end of the guide cylinder (1), and the inclined feeding notch (15) is opened on a side close to the receiving roller (3).

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