TWI674157B - Straightening apparatus - Google Patents

Abstract

The invention relates to a straightening device, comprising: a plurality of rollers, the plurality of rollers constituting a first channel, the first channel is for a pipe to pass through, and the pipe can bear against the plurality of rollers when in the first channel; An extending direction of the first channel is transverse to an extending direction of a rotation axis of at least one of the rollers; at least three shells, each of the shells includes two arms connected laterally to each other, and each of the arms of each shell and One of the casings of the other casing is disposed opposite to each other, a plurality of the rollers are rotatably disposed between any two of the casings, and at least one of the casings is provided with a protrusion on one end side of the casing. Wall, the convex wall extends toward the rotation axis extension direction of at least one of the rollers and at least partially overlaps with at least one of the rollers in a radial direction.

Description

Straightening device

The invention relates to a straightening device.

General metal materials such as metal rods, wires, pipelines, etc. are generally used for pipelines such as air-conditioning to transport cold / hot media, fluids, etc., and are usually rolled into coils for easy transportation and storage to facilitate stacking and reduce the overall size Store it and cut it to a proper size when using it. Because the metal bars, wires, and pipelines are bent and deformed during winding and storage, the metal bars, wires, and pipelines must be straightened through a straightening mechanism.

The straightening mechanism of the conventional technology includes a machine, an input guide wheel set, an output guide wheel set, and a stress relief wheel. The machine has a tendon side and a tendon side opposite to the tendon side ; The input guide wheel set is placed on the machine near the rib-entry side, and includes a first lead-in wheel and a second lead-in wheel, wherein the first lead-in wheel and the second lead-in wheel line are along the rib. The direction from the side to the tendon side is staggered; the output guide wheel set is arranged on the machine near the tendon side and includes a first lead-out wheel and a second lead-out wheel, wherein the first lead-out wheel and The second lead-out gear trains are staggered in a direction from the rib-in side to the rib-out side; and the stress relief wheel is disposed between the input guide wheel set and the output guide wheel set. In this way, the metal material can be transported from the side of the rib to the side of the rib to achieve the straightening effect.

However, the straightening mechanism of the conventional technology is a machine table, which is bulky and heavy, and the mechanism is more complicated, which is time-consuming to assemble and cannot be carried around.

Therefore, it is necessary to provide a novel and progressive straightening device to solve the above problems.

The main object of the present invention is to provide a straightening device that can be stably held by a hand to provide a straightening function.

In order to achieve the above object, the present invention provides a straightening device, including: a plurality of rollers, the plurality of rollers constitute a first channel, the first channel is for a pipe to pass through, and the pipe can be received in the first channel. By the plurality of rollers, an extension direction of the first channel is transverse to a rotation axis extension direction of at least one of the rollers; at least three shells, each of the shells includes two arms connected laterally to each other, and Each of the arms is disposed opposite to one of the arms of the other casing, and the plurality of rollers are rotatably disposed between any two of the casings. Each of the rollers can rotate relative to each of the arms. A convex wall is provided on one end of at least one of the arms of at least one of the shells, and the convex wall extends toward the rotation axis extension direction of at least one of the rollers and at least partially overlaps with at least one of the rollers in a radial direction.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 5, which show a first preferred embodiment of the present invention. The straightening device of the present invention includes a plurality of rollers 1 and at least three shells 2.

The plurality of rollers 1 form a first channel 4 in total, and the first channel 4 is passed by a tube 3. The tube 3 can bear against the plurality of rollers 1 in the first channel 4. An extension direction is transverse to a rotation axis extension direction of at least one of the rollers 1; each of the casings 2 includes two arm portions 22 laterally connected to each other, each of the arm portions 22 of the each casing 2 and the other casing 2 One of the arm portions 22 is opposite to each other. The plurality of rollers 1 are rotatably provided between any two of the arm portions 22. At least one of the housings 2 is provided with a protrusion on one end side of the arm portion 22. Wall 21, the convex wall 21 extending toward the rotation axis extension direction of at least one of the rollers 1 and at least partially overlapping with at least one of the rollers 1 in a radial direction; whereby the straightening device can be stably held by the hand, and A hand is firmly pressed on the convex wall 21 to reduce the pressing force of the straightening device opponent, improve the grip comfort, and prevent dust and chipping from easily entering and adhering to each of the rollers 1.

The plurality of rollers 1 further includes a plurality of roller groups, each of which is disposed between any two of the two oppositely disposed arm portions 22, at least two of the plurality of roller groups such as a roller group 11 and The rotation axes of the rollers 1 of the roller group 12 are laterally extended to each other. Further explanation, the at least two groups of rollers 11 and 12 constitute the first channel 4 for pressing and straightening the tube 3 from different directions. In this embodiment, the number of the plurality of roller groups 11 and 12 is four. In a plan view, the four roller groups 11 and 12 are arranged in a cross shape. An included angle formed between one of the two adjacent roller groups 11 and 12 in the radial extension direction may be a right angle or a non-right angle.

Each of the arm portions 22 is provided with the convex wall 21, and the plurality of rollers 1 between the convex wall 21 and any two of the arm portions 22 at least partially overlap in the radial direction, so as to facilitate holding and shielding dust, chipping, and the like. Furthermore, the extensions of the convex walls 21 of any two adjacent casings 2 are the same, which is convenient for holding and supporting and is not easily deformed. In this embodiment, the protruding walls 21 of the two adjacent arm portions 22 are not overlapped in the radial direction of at least one of the rollers 1, and may also overlap each other in other embodiments.

Each of the shells 2 is L-shaped, each of the shells 2 is provided with two inner sets of surfaces 23 and an arc concave surface 24 connected between the two inner sets of surfaces 23, and each of the inner sets of surfaces 23 is provided with the plurality of rollers 1. Good structural strength and easy to hold. In addition, each of the rollers 1 is a roller, the roller is provided with an axial direction, and the roller is provided with an arc concave abutment surface 13 extending around the axis, and the arc concave abutment surface 13 can be used for the pipe 3 to abut. The curvature of the arc concave abutment surface 13 is smaller than that of the arc concave surface 24, which improves the structural strength and can effectively resist the force of the hand and the pipe 3 to achieve the effect of stable force application. In detail, the convex wall 21 is provided with a wavy outer wall surface 211 to facilitate gripping; in other embodiments, the outer wall surface may also be curved or have a non-slip structure; each of the rollers includes a bearing 14, a The ring body 15 sleeved on the bearing 14 and a connecting rod 16 passing through the arm portions 22 of the bearing 14 and the housing 2 opposite to each other can provide smooth rotation.

Preferably, the plurality of rollers 1 disposed between the two arm portions 22 and disposed in the extending direction of the first channel 4 include two first rollers 17 and a plurality of the first rollers 17. Between the second rollers 18, the distance between each of the first rollers 17 and the adjacent second rollers 18 is greater than the distance between the adjacent two of the second rollers 18, so that the pipe 3 can pass through smoothly Entering the first channel 4 has a better straightening effect.

Each of the shells 2 is provided with a convex portion 25 and at least one concave portion 26 protruding in a thickness direction, the convex portion 25 and the concave portion 26 are provided along the extending direction of the first channel 4, and the at least one concave portion 26 is provided on the shell. At the end of the body 2, the plurality of rollers 1 are disposed on the convex portion 25, and at least one of the rollers 1 and the concave portion 26 forms a gap 27 to improve the overall structural strength and have better supporting force, and The pipe 3 is allowed to penetrate into the first channel 4 smoothly. In addition, the convex portion 25 is provided with an arc convex surface 28 in a direction that is at least one opening toward the first channel 4. The arc convex surface 28 extends around the rotation axis extension direction of one of the rollers 1, and the arc convex surface 28 is located on one of them. This roller 1 is on one side.

Preferably, please refer to FIG. 6, and further include a plurality of pins 5, each of the pins 5 passing through any two opposite arm portions 22 of the housing 2, each of the pins 5 and each of the rollers 1 being non-coaxially disposed. To enhance the connection strength between the at least three shells 2.

In use, the straightening device can be directly held by a hand, and the pipe 3 is inserted into the first channel 4 from one end of the straightening device. When the pipe 3 passes through the first channel 4, the pipe 3 is The outer periphery will force against the plurality of rollers 1 and smoothly pass through the first channel 4 to achieve a straightening effect. In addition, a hand can be held against the convex wall 21 to reduce holding pressure, and the convex wall 21 can prevent impurities such as dust and chipping from entering the straightening device.

1‧‧‧roller

11, 12‧‧‧ Roller group

13‧‧‧arc concave surface

14‧‧‧bearing

15‧‧‧ ring body

16‧‧‧ connecting rod

17‧‧‧ the first roll

18‧‧‧Second Roller

2‧‧‧shell

21‧‧‧ convex wall

211‧‧‧outer wall surface

22‧‧‧ arm

23‧‧‧Inner surface

24‧‧‧arc concave

25‧‧‧ convex

26‧‧‧ Recess

27‧‧‧ Clearance

28‧‧‧arc convex

3‧‧‧Pipe Fittings

4‧‧‧ the first channel

5‧‧‧ Bolt

FIG. 1 is a perspective view of a first preferred embodiment of the present invention. FIG. 2 is an exploded view of a first preferred embodiment of the present invention. FIG. 3 is a sectional view of a first preferred embodiment of the present invention. Fig. 4 is a sectional view taken along the line A-A in Fig. 1. FIG. 5 is a schematic diagram of a first preferred embodiment of the present invention. FIG. 6 is a sectional view of a second preferred embodiment of the present invention.

Claims (9)

A straightening device includes: a plurality of rollers, the plurality of rollers constituting a first channel, the first channel is provided for a pipe, and the pipe can abut the plurality of rollers in the first channel; An extension direction of a channel is transverse to an extension direction of a rotation axis of at least one of the rollers; at least three shells, each of the shells includes two laterally connected arms, each of the arms of each of the shells and another of the arms One of the housings is provided with two arms facing each other, and a plurality of the rollers are rotatably provided between any two of the arms. At least one of the housings is provided with a convex wall on one end side of the arm. The convex wall extends toward the rotation axis extension direction of at least one of the rollers and at least partially overlaps with at least one of the rollers in a radial direction; wherein the housing is provided with a convex portion and at least one concave portion protruding in a thickness direction. The convex portion and the concave portion are disposed along the extending direction of the first channel, the at least one concave portion is provided at an end of the housing, the plurality of rollers are provided on the convex portion, and at least one of the rollers and the concave portion forms a gap. The straightening device according to claim 1, wherein the plurality of rollers further includes a plurality of roller groups, each of which is disposed between any two of the arms, and at least two of the plurality of rollers The rotating shafts of the pieces extend laterally to each other. The straightening device according to claim 1, wherein each of the arm portions is provided with the convex wall, and the plurality of rollers between the convex wall and any two of the arm portions at least partially overlap in the radial direction. The straightening device according to claim 3, wherein the extensions of the convex walls of any two adjacent housings are the same. The straightening device according to claim 1, wherein each of the shells is L-shaped, and each of the shells is provided with two inner sets of surfaces and an arc concave surface connected between the two inner sets of surfaces, and each of the inner sets of surfaces The plurality of rollers are provided. The straightening device according to claim 5, wherein each of the rollers is a roller, the roller is provided with an axial direction, and the roller is provided with an arc concave abutment surface extending around the axial direction, and the arc concave abutment surface is available The pipe fitting abuts. The straightening device according to claim 1, wherein the plurality of rollers disposed between the two arms and disposed in the extending direction of the first channel include two first rollers and a plurality of rollers disposed on the two first For the second rollers between the rollers, a distance between each of the first rollers and an adjacent second roller is greater than a distance between two adjacent second rollers. The straightening device according to claim 6, wherein the plurality of rollers further includes a plurality of roller groups, each of which is disposed between any two of the arms, and at least two of the plurality of rollers The rotating shafts of the pieces extend laterally to each other; the convex wall is provided on the end side of each of the arms, and the plurality of rollers between the convex wall and any two of the arms at least partially overlap in the radial direction; any two adjacent ones The extension of the convex wall of the casing is the same; the plurality of rollers disposed between the two arms and disposed in the extending direction of the first channel include two first rollers and a plurality of the first rollers The second rollers between the pieces, the distance between each of the first rollers and the adjacent second roller is greater than the distance between the two adjacent second rollers; the convex portion faces at least one An arc convex surface is provided in the opening direction, and the arc convex surface extends around the rotation axis extension direction of one of the rollers, and the arc convex surface is located on one side of one of the rollers; the convex wall is provided with a wavy outer wall surface; each The roller comprises a bearing, a ring body provided on the bearing, a bearing penetrating the bearing, and two housings facing each other. The connecting rod of the arm. The straightening device according to any one of claims 1 to 8, further comprising a plurality of pins, each of which passes through two oppositely disposed arms of the housing, each of the pins and each of the rollers are not Coaxial setting.