Feeding device of steel pipe straightening machine

Abstract

The utility model discloses a feeding device of a steel pipe straightening machine, which comprises a base and a plurality of conveying rollers arranged on the base and distributed along a straight line, the conveying rollers convey materials placed on the conveying rollers when rotating, the feeding device comprises a limiting cylinder and a driving device, the limiting cylinder is horizontally arranged on the base, and the driving device drives the limiting cylinder to rotate. An inlet for materials to enter is formed in the side wall of the limiting barrel, a plurality of openings which are distributed in the length direction and correspond to the conveying rollers one to one are formed in the bottom of the limiting barrel, and the conveying rollers are driven by the driving device to enter and exit from the corresponding openings to convey the materials in the limiting barrel in a matched mode. According to the feeding device of the steel pipe straightening machine, the acting force of materials on the conveying rollers is reduced, and safe and accurate feeding is achieved.

Description

Technical Field

[0001] The utility model relates to a feeding device of a steel pipe straightening machine, belonging to the technical field of steel pipe processing equipment. Background Art

[0002] A straightening machine is a device for straightening metal pipes, bars, etc. When working, the rollers in the straightening machine exert multiple reverse forces on the material, causing the material to undergo plastic deformation, eliminating internal stress, and ultimately achieving the purpose of straightening. The material is now conveyed into the straightening machine in a straight line through fixed conveyor rollers. If the material is placed directly on the rotating conveyor rollers when the conveyor rollers are running, the material will be thrown out, and when the material is just input into the straightening machine, some conveyor rollers still support the material. When the rollers of the straightening machine exert reverse forces on the material, the material will twist and roll, and the conveyor rollers will be subjected to a strong reaction force, which is prone to wear and damage, and the material is also prone to being thrown out during the conveying process, causing accidents. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a feeding device for a steel pipe straightening machine, which reduces the force of materials on a conveying roller, realizes safe and accurate feeding, and can solve the shortcomings of the prior art.

[0004] The technical solution of the utility model is: a feeding device of a steel pipe straightening machine, comprising a base and a plurality of conveying rollers arranged on the base and distributed along a straight line, the conveying rollers convey the materials placed thereon when rotating, comprising a limiting cylinder and a driving device, the limiting cylinder being horizontally arranged and installed on the base, an inlet for the material to enter is arranged on the side wall of the limiting cylinder, a plurality of openings distributed along the length direction and corresponding to the conveying rollers are arranged at the bottom of the limiting cylinder, the conveying rollers are driven in and out of the corresponding openings by the driving device to cooperate with the conveying of the materials in the limiting cylinder.

[0005] Furthermore, a non-return mechanism is installed at the inlet, and the non-return mechanism includes a non-return member connected to one side of the inlet, and the non-return member cooperates with the other side of the inlet to resist, so that the material enters the limiting cylinder from the inlet in one direction.

[0006] Further, the limiting cylinder comprises an upper cylinder and a lower cylinder which match each other. The lower cylinder is mounted on the base and is rotatably connected to one side of the upper cylinder to form the inlet with the other side.

[0007] It further includes a plurality of supports distributed and connected to the base in a straight line direction, the conveying rollers are connected to the corresponding supports, and the transmission connections of the plurality of supports are driven by the driving device to swing synchronously, so that the conveying rollers installed on the supports enter and exit the corresponding openings.

[0008] Furthermore, the conveying roller is of an I-shaped structure with a middle portion being concave inwards.

[0009] By implementing the utility model, the metal pipe or bar to be straightened enters the limiting cylinder from the entrance of the limiting cylinder, and the conveying roller is driven by the driving device to enter the limiting cylinder from the opening to cooperate with the metal pipe or bar for conveying, and the metal pipe or bar is output from one end of the limiting cylinder into the steel pipe straightening machine. When the roller in the steel pipe straightening machine acts on the metal pipe or bar, the driving device drives the conveying roller to move outside the limiting cylinder and separate from the metal pipe or bar. When the metal pipe or bar is straightened, no force will be generated on the conveying roller, thereby extending the service life. The limiting cylinder limits the metal pipe or bar in multiple directions to prevent the metal pipe or bar from falling during the conveying process, thereby realizing safe and accurate loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional view of the utility model;

[0011] Figure 2 It is a front view of the utility model.

[0012] As shown in the figure: base 1; conveying roller 2; metal pipe 3; limit cylinder 4; opening 5; inlet 6; anti-return piece 7; spring 8; upper half cylinder 9; lower half cylinder 10; support 11; transmission rod 12; telescopic cylinder 13. DETAILED DESCRIPTION

[0013] Embodiments of the present utility model: Figure 1 to Figure 2 As shown, a feeding device of a steel pipe straightening machine comprises a base 1 and a plurality of conveying rollers 2 arranged on the base 1 and distributed along a straight line. When the conveying rollers 2 rotate, the metal pipes 3 placed thereon are conveyed. The feeding device comprises a limiting cylinder 4 and a driving device. The limiting cylinder 4 is horizontally arranged and installed on the base 1. An inlet 6 for the metal pipes 3 to enter is arranged on the side wall of the limiting cylinder 4. A plurality of openings 5 ​​corresponding to the conveying rollers 2 are arranged at the bottom of the limiting cylinder 4 along the length direction. When in use, the metal pipes 3 to be straightened enter the limiting cylinder 4 from the inlet 6 through the conveying device and stay in the limiting cylinder 4. At the bottom of the cylinder 4, the driving device drives the conveying roller 2 to move from the opening 5 into the limiting cylinder 4 to support and convey the metal pipe 3, and the metal pipe 3 is output from one end of the limiting cylinder 4 into the steel pipe straightening machine. When the roller in the steel pipe straightening machine acts on the metal pipe 3, the driving device drives the conveying roller 2 to move to the outside of the limiting cylinder 4 and separate from the metal pipe 3. The metal pipe 3 will not have any force on the conveying roller 2 during straightening, thereby extending its service life. The limiting cylinder 4 limits the metal pipe 3 in multiple directions to prevent the metal pipe 3 from falling during transportation, thereby achieving safe and accurate loading.

[0014] As a preferred embodiment, a non-return mechanism is installed at the entrance 6, and the non-return mechanism includes a row of non-return parts 7 distributed along the length of the entrance, the upper ends of which are connected to the upper side of the entrance 6, and springs 8 connected to the corresponding non-return parts 7. The non-return parts 7 cooperate with the inner wall of the lower side of the entrance 6 to resist. The non-return parts 7 are in a state of resisting the inner wall under the action of the spring 8. When the metal pipe 3 enters from the entrance 6, it pushes the non-return part 7 to rotate inward, and the metal pipe 3 can smoothly enter the limit cylinder 4. Then, the non-return part 7 is reset to the state of resisting the inner wall of the lower side of the entrance 6 under the action of the spring 8, preventing the metal pipe 3 from falling out of the entrance 6, thereby improving safety.

[0015] As a preferred embodiment, the limit cylinder 4 includes a matching upper cylinder 9 and a lower cylinder 10. The lower cylinder 10 is fixedly mounted on the base 1 and rotatably connected to one side of the upper cylinder 9. The other sides of the two form the above-mentioned inlet 6. The upper cylinder 10 rotates relative to the lower cylinder 9 along the transition side and can be in an open state during operation and a closed state during operation, which is convenient for the production and maintenance of the limit cylinder 4 and the installation of the anti-return mechanism.

[0016] As a preferred embodiment, it includes a plurality of supports 11 distributed and connected on the base 1 in a straight line direction, the conveying rollers 2 are connected one by one to the corresponding supports 11, the supports 11 are equipped with motors or other transmission devices for driving the conveying rollers 2 to rotate, the transmission rods 12 connect the supports 11 one by one to achieve transmission connection of the plurality of supports 11, the driving device includes a telescopic cylinder 13, the telescopic rod of the telescopic cylinder 13 is connected to one of the supports 11, and the telescopic rod is extended and retracted to drive the plurality of supports 11 to swing synchronously to achieve the synchronous entry and exit of the conveying rollers 2 on the supports 11 into and out of the limiting cylinder 4 to achieve coordinated conveying with the material.

[0017] As a preferred embodiment, the outer surface of the conveying roller 2 has an arc-shaped transition and is an I-shaped structure with a middle portion that is concave inward. The conveyed material is automatically limited in the middle of the conveying roller 2 for conveying, which has the effect of preventing the material from falling out and ensuring precise conveying.

Claims

1. A feeding device for a steel pipe straightening machine, comprising a base and a plurality of conveying rollers arranged on the base and distributed along a straight line, wherein the conveying rollers convey the materials placed thereon when rotating, and characterized in that: It includes a limiting cylinder and a driving device. The limiting cylinder is horizontally installed on a base. An entrance for material entry is provided on the side wall of the limiting cylinder. A plurality of openings corresponding to conveying rollers are provided at the bottom of the limiting cylinder along the length direction. The conveying rollers are driven in and out of the corresponding openings by the driving device to cooperate with the conveying of the materials in the limiting cylinder.

2. The feeding device of the steel pipe straightening machine according to claim 1 is characterized in that: A non-return mechanism is installed at the inlet, and the non-return mechanism includes a non-return piece transferred to one side of the inlet, and the non-return piece cooperates with the other side of the inlet to resist, so that the material enters the limiting cylinder from the inlet in one direction.

3. The feeding device of the steel pipe straightening machine according to claim 2 is characterized in that: The limiting cylinder comprises an upper cylinder and a lower cylinder which match each other. The lower cylinder is mounted on a base and is rotatably connected to one side of the upper cylinder to form the inlet with the other side.

4. The feeding device of the steel pipe straightening machine according to claim 1 is characterized in that: It comprises a plurality of supports distributed and connected to the base in a straight line direction, the conveying rollers are connected to the corresponding supports, and the transmission connections of the plurality of supports are driven by the driving device to swing synchronously, so that the conveying rollers installed on the supports enter and exit the corresponding openings.

5. The feeding device of the steel pipe straightening machine according to any one of claims 1 to 4, characterized in that: The conveying roller is in an I-shaped structure with a middle portion being concave inwards.

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