CN110856861A

CN110856861A - Multi-size straightening device

Info

Publication number: CN110856861A
Application number: CN201810969169.6A
Authority: CN
Inventors: 蔡忠
Original assignee: Hong Jinjin Industrial Co Ltd
Current assignee: Hong Jinjin Industrial Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2020-03-03
Anticipated expiration: 2038-08-23
Also published as: CN110856861B

Abstract

The invention provides a multi-size straightening device, which comprises: a substrate is provided with a driven part which reciprocates to a separating position and a merging position; a group of first rollers combined with the driven part and a group of second rollers combined with the substrate, wherein the group of first rollers are far away from the group of second rollers when in a separating position, and the group of first rollers are close to the group of second rollers and mutually staggered when in a combining position, and jointly enclose a straightening channel which is discontinuous and allows pipes with different diameters to go in and out; and a guide wheel which is arranged on the base plate, and is positioned in front of the straightening channel when in the merging position, and the guide wheel can exert the function of pre-pressing the pipe entering the straightening channel, thereby being beneficial to the straightening operation of the bent pipe.

Description

Multi-size straightening device

Technical Field

The invention relates to a Straightening (or Straightening) technology of a bent pipe, in particular to a Straightening (Straightening) device suitable for pipes with multiple sizes.

Background

Known hydraulic stainless steel tubing or frozen copper tubing is coiled, usually by cutting a small section and discarding, drawing the tube into a generally straight tube with a straightener, and then performing the alignment and positioning of the lines within the chamber.

A traditional straightener is disclosed in Taiwan patent No. M352409. The straightener uses an electric motor as a power source to drive a straightening wheel set to rotate. And a bent reinforcing steel bar passes through the straightening wheel set to perform straightening operation on the bent part. The straightener is bulky and not suitable for being carried about, and the motor consumes electric power, so that the production cost is relatively increased.

Another prior art straightener is shown in U.S. patent No. 4,116,037. The straightener has two claws operated by manpower, the claws are combined to form a channel like a cylinder, and the bent pipe inserted into the channel is straightened. However, the contact of the inner surface of the channel with the tube causes frictional forces that prevent the jaws from sliding relative to the tube. Even in the case where the friction is larger than the human power, the straightener is made to be still and embarrassed.

Therefore, how to easily perform the straightening (or straightening) operation by manually operating the straightening device becomes an urgent problem to be solved by the present invention.

Disclosure of Invention

In view of the above, the present invention provides a new straightening device, and its main purpose is: the straightening device is convenient to carry by adopting a small-size wheel set structure, can overcome the obstruction of a construction site to rotate for 360 degrees, and straightens the bent part of the pipe.

The straightening device of the invention mainly aims at comprising the following components: the structure of pre-pressing is adopted, and the straightening (or straightening) operation is smoothly completed by matching with the rolling motion of the side wheels.

In view of the achievement of the above purpose, the invention adopts the technical scheme that:

a multi-size straightening device is characterized by comprising:

a substrate;

a driven member disposed on the substrate and capable of moving to and fro between an open position and a combined position;

a group of first rollers and a group of second rollers which are respectively combined on the substrate and the driven part; in the disengaged position, the set of first rollers is spaced away from the set of second rollers; when in the combining position, the group of first rollers are close to the group of second rollers and are mutually staggered to jointly form a discontinuous straightening channel allowing pipes with different diameters to go in and out; and

a guide wheel, which is configured on the base plate and is positioned in front of the straightening channel when in the merging position.

The multi-size straightening device is characterized in that a thickness member is combined between the group of first rollers and the driven member, a supporting member is combined between the group of second rollers and the base plate, and the width of the supporting member is approximately equal to the sum of the thicknesses of the thickness member and the driven member.

The multi-size straightening device is characterized in that the supporting piece is connected with a low-step part by two parallel connecting parts, and the low-step part is connected with an adjusting piece;

and the linkage part is arranged between the two linkage parts and is matched with the low-step part to compress a spring, so that the spring pushes the linkage part reversely to enable the moving part to contact the adjusting piece.

The multi-size straightener wherein the adjustment is a screw that is locked into the lower step.

The multi-size straightener also has a side wheel rotatably disposed beside the lower step part, and the side wheel and the guide wheel are on different sides of the support member.

The multi-size straightening device is characterized in that the base plate and the driven member are connected together by a group of guide bolts, and the group of guide bolts pass through the driven member and a plurality of parallel limiting holes formed in the base plate.

The straightening device with multiple sizes is characterized in that required lubricating oil is added between the base plate and the driven part.

The base plate, the driven part and the driving part are connected together by a driving stud, the driving stud passes through the driving part and passes through a transverse hole formed in the driven part and an arc-shaped hole formed in the base plate, and the arc-shaped hole and the transverse hole are mutually staggered, so that the driving stud is positioned at the intersection of the arc-shaped hole and the transverse hole.

A multi-size straightening device is characterized by comprising:

a substrate;

a driven member disposed on the substrate and capable of moving to and fro between an open position and a combined position; and

a group of first rollers and a group of second rollers which are respectively combined on the substrate and the driven part; in the disengaged position, the set of first rollers is spaced away from the set of second rollers; in the combined position, the first set of rollers is adjacent to the second set of rollers and is staggered with respect to each other to form a straightening channel which is discontinuous and allows pipes of different diameters to enter and exit.

Therefore, the straightening device has small volume and can be carried about. The straightening device moves along the length direction of the pipe, and can overcome the obstruction of a construction site even if rotating 360 degrees around the pipe, so as to straighten the bent part. Moreover, the guide wheel exerts the function of pre-pressing the pipe entering the straightening channel, and is beneficial to the straightening operation of the bent pipe. The side wheels pass through a workbench, the ground or a wall, so that the straightening clamp is convenient to adapt to a plurality of construction places.

To further clarify the objects, structures, features and advantages of the present invention, one or more preferred embodiments will be described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of a straightening apparatus according to the present invention arranged in a hand tool.

FIG. 2 is an exploded perspective view of the leveler of FIG. 1.

FIG. 3 is a front view of the straightener as incorporated with the hand tool.

FIG. 4 is a rear view of the straightener of FIG. 3.

FIG. 5 is a front view of the straightener separated from the hand tool.

Figures 6-8 are end views of straightening channels fitted to pipes of different diameters.

Description of reference numerals: a straightening device 10; a substrate 11; a limiting hole 12; a long hole 13; an arcuate aperture 14; fixing

holes

15, 17, 22; a coupling hole 16; a driven member 20; a transverse bore 21; a key hole 23; a guide bolt 30; a drive stud 34; a gasket 36; a nut 38; a first roller 40;

bolts

401, 421;

inner bores

41, 43, 45; a second roller 42; a guide wheel 44;

studs

441, 461; the side wheels 46; a bearing 47; a straightening channel 48; a thickness member 50;

circular holes

51, 54; a tube 52; the support member 53; an extension 55; an aperture 551; a low-step portion 56; a spring groove 561; an internally threaded bore 562; an adjustment hole 563; a joining portion 57;

shafts

571, 73; a spring 58; an active member 60; the accommodating portion 61;

shaft holes

62, 85; a pivot hole 63; a hand tool 70; the first operating member 71; the second operating member 72; a fastener 74; a latch piece 75; a toggle piece 76; teeth 77; a switch 78; a short bar 79; a shoulder 80; a movable member 81; an adjustment member 82; a linking portion 83; a catch unit 84.

Detailed Description

FIGS. 1-5 show a preferred embodiment of the straightening apparatus 10, which is configured with a manual tool 70, and is considered as a manual straightening pliers, which can straighten (or straighten) a curved portion of a pipe 52 with different dimensions without using extra power (i.e. an electric motor or a motor), and is convenient for carrying about.

The tubing 52, as referred to herein, broadly refers to hydraulically pressed stainless steel tubing, frozen copper tubing, or other metallic round tubing having a diameter of from 3/16 inches to 1/2 inches.

The hand tool 70 is a structure body in which a first operating member 71 and a second operating member 72 are connected by a shaft 73 and move alternately, and belongs to the alternate movement part of a shear, a clamp or other tools. Therefore, the first and second operating

members

71, 72 are rotated about the shaft 73 to be moved toward each other or to be moved away from each other by a predetermined angle.

A locking unit 84 is disposed on one side of the hand tool 70, and the locking unit 84 includes: a latch piece 75 fixed to the outside of the first operating member 71 by a set of fasteners 74 such as rivets; a toggle piece 76 which is disposed between the latch piece 75 and the first operation member 71 and can swing; and a switch 78 pivotally connected to the same side of the second operating member 72 for turning to a normal state. The switch 78 is engaged or snapped to a set of notches formed on the engaging piece 75, the toggle piece 76 and the shoulder 80 of the first operating member 71 to limit the first and

second operating members

71, 72 from keeping close. After the toggle piece 76 pushes the switch 78 away from the set of shoulders 80, the switch 78 can automatically catch or bite one of a row of teeth 77 continuously formed on the edge of the catch piece 75 to limit the opening angle of the first and

second operation members

71, 72.

The detailed structure of the hand tool 70 is not the technical feature, and therefore, will not be described in detail. Please refer to taiwan patent nos. I584926 and 9,789,615 for interested persons.

In this embodiment, the straightening device 10 is composed of a base plate 11, a driven member 20, a driving member 60 and a set of wheels.

In the figure, the substrate 11 and the passive component 20 are plates or sheets with certain shapes, and holes with certain functional shapes are respectively formed on the plates or sheets. The holes of the substrate 11 are defined as: two elongated and parallel limiting holes 12, three parallel elongated holes 13, an arc-shaped hole 14 near the top of the substrate 11, fixing

holes

15, 17 passing through the corners of the substrate 11, and a set of combining holes 16 passing through the bottom of the substrate 11. The holes of the passive component 20 are respectively: a transverse hole 21 biased to the upper right of the driven member 20, two fixing holes 22 passing through the diagonal positions of the driven member 20, and a set of bolt holes 23 passing through the lower left of the driven member 20.

The shaft 73 and the fastening member 74 pass through the corresponding fixing holes 15 and 17, respectively, so that the base plate 11 is fixed to the outside of the first operating member 71 and is not located on the same side as the latch unit 84. A set of guide bolts (or screws) 30 sequentially pass through a washer 36 and the limiting holes 12 and are locked into the corresponding fixing holes 22 of the driven member 20, so that the driven member 20 is slidably arranged on the side of the base plate 11. If necessary, some lubricating oil is added between the driven part 20 and the substrate 11 to reduce the friction coefficient of the driven part and the substrate, and the invention belongs to the allowable range. Therefore, the set of guide bolts 30 can guide the movable member 20 to and fro along the length of the limiting hole 12 relative to the base plate 11 to an opening position and a combining position.

In addition, a driving stud 34 passes through the other washers 36, is inserted into a pivot hole 63 of the driving member 60, passes through the transverse hole 21 of the driven member 20 and the arc-shaped hole 14 of the base plate 11, and is locked with a nut 38, so that the driving member 60, the driven member 20 and the base plate 11 are connected together. At this point, the arcuate aperture 14 is interdigitated with the transverse aperture 21 and the drive stud 34 is located at the intersection of the arcuate aperture 14 and the transverse aperture 21.

The driving member 60 has a shaft hole 62, and the shaft hole 62 is surrounded by the pivot hole 63 and the accommodating portion 61. When the second operation element 72 is partially inserted into the driving element 60, the shaft hole 62 is penetrated by the shaft 73, and the pivot hole 63 supporting the driving element 60 is exposed to the outside of the second operation element 72. The receiving portion 61 is formed in a U-shape at an end of the driving member 60, and receives a short bar 79 fixed inside the second operating member 72, and the driving member 60 is fixed to the second operating member 72 by engaging the shaft 73. Therefore, the active member 60 and the second operating member 72 can be operated synchronously.

The group of wheels is divided into: a set of first rollers 40, a set of second rollers 42, a guide wheel 44 and a side wheel 46, and a bearing 47 is embedded in the center of the side wheel 46. It is within the scope of the present invention to optionally provide bearings within the first and

second rollers

40, 42 and the guide wheel 44.

The first rollers 40 are coupled to a side of a thickness member 50 by a set of bolts 401. The number of the set of bolts 401 is four: a bolt 401 passes through an inner hole 41 of the first roller 40 and is locked in one of a plurality of round holes 51 formed in the thickness member 50; the remaining three bolts 401 pass through the inner holes 41 of the first roller 40, pass through the round holes 51 of the thickness member 50 and the corresponding bolt holes 23 of the driven member 20, extend out of the long holes 13 of the base plate 11, and lock the corresponding nuts 38. The circular holes 51 are equally spaced apart from the thickness member 50, so that the set of first rollers 40 are equally spaced apart from the thickness member 50. The length of the long holes 13 is larger than that of the limiting holes 12, so that the same-direction displacement of the group of first rollers 40 along with the driven piece 20 is not interfered.

The second roller 42 is coupled to a side of a support member 53 by another set of bolts 421. The set of bolts 421 respectively pass through the inner holes 43 of the second rollers 42, pass through one of the circular holes 54 formed in the supporting member 53, and extend out of the corresponding coupling holes 16 of the base plate 11, thereby locking the corresponding nuts 38. Similarly, the round holes 54 are equally spaced on the support 53, so that the set of second rollers 42 are pivoted at equal intervals on the side of the support 53. Moreover, the width of the supporting member 53 is substantially equal to the sum of the thickness member 50 and the thickness of the driven member 20, so that the set of second rollers 42 is located below the set of first rollers 40.

In addition, the supporting member 53 has an extension 55 protruding outward from one end and a lower step portion 56 at the other end, and the lower step portions 56 and the supporting member 53 are connected by two parallel connecting portions 57, allowing a shaft 571 like a rivet to pass through the two connecting portions 57. The extension 55 is narrower than the support member 53 and has two holes 551 through which the fastening members 74 pass, so that the support member 53 and the first operating member 71 are coupled together. The lower portion 56 has a spring slot 561, an internally threaded hole 562 and an adjusting hole 563, and the internally threaded hole 562 and the adjusting hole 563 are staggered in axial length to lock an adjusting member 82 like a screw and a stud 461, respectively. The bearing 47 is fitted over the stud 461 and supports the side wheel 46 on the side of the support member 53.

A movable member 81 and a linking portion 83 are substantially L-shaped and form a shaft hole 85 at the turning point. When the shaft 571 passes through the shaft hole 85, the linking portion 83 is inserted between the two engaging portions 57, and together with the low step portion 56, it compresses a spring 58 inserted into the spring slot 561. The spring 58 pushes the linking portion 83 back, and the linking movable element 81 touches the portion of the adjusting element 82 exposed from the low-step portion 56, so that the angle between the movable element 81 and the low-step portion 56 is adjusted by the adjusting element 82. The other stud 441 passes through the inner hole 45 of the runner 44 and is locked into the internally threaded hole 562 of the lower step portion 56, thereby supporting the runner 44 and the side wheel 46 on different sides of the support member 53.

In the separated position, the driving member 60 drives the driving stud 34 to move to the high point of the arc-shaped hole 14 to a position where the transverse hole 21 is biased to the right end (refer to fig. 5), and pushes the driven member 20 to slide relative to the substrate 11, so as to drive the set of first rollers 40 to move away from the set of second rollers 42.

In the merging position, the driving member 60 drives the driving stud 34 to move toward the lower position of the arc-shaped hole 14 to a position (refer to fig. 3) where the transverse hole 21 is biased to the left end, and pushes the driven member 20 to slide relative to the substrate 11, so as to drive the set of first rollers 40 to go above the set of second rollers 42. At this point, the first and

second rollers

40, 42 are interdigitated to cooperatively enclose a discontinuous straightening channel 48 for contacting the exterior of tubes 52 of different diameters (see FIGS. 6-8).

When in use, the whole straightening clamp has small volume and can be carried about. The hand tool 70 can be held to move along the length direction of the tubing 52 without cutting process, and the coiled tubing 52 can be straightened. The first and

second rollers

40, 42 rotate 360 degrees around the pipe 52 to overcome the obstruction of the construction site and straighten the bent portion of the pipe 52. The guide wheel 44 is located in front of the straightening channel 48 and acts to pre-stress (e.g., raise or lower) the tube 52 entering the straightening channel 48, thereby facilitating the straightening of the bent tube.

Secondly, the side wheels 46 run through a workbench, the ground or a wall, so that the straightening clamp is convenient to adapt to a plurality of construction sites. Of course, the removal of the side wheels 46 from the supports 53 (or the lower step 56) does not interfere with the straightening pliers' straightening of the pipe 52.

Claims

1. A multi-size straightening device is characterized by comprising:

a substrate (11);

a driven member (20) disposed on the base plate (11) and capable of reciprocating between an open position and a closed position;

a group of first rollers (40) and a group of second rollers (42) which are respectively combined on the substrate (11) and the driven part (20); in the disengaged position, the set of first rollers (40) is spaced away from the set of second rollers (42); in the merge position, the first set of rollers (40) is adjacent to the second set of rollers (42) and are staggered to define a straightening path (48) that is discontinuous to allow the entry and exit of tubes (52) of different diameters; and

a guide wheel (44) arranged on the base plate (11), the guide wheel (44) being located in front of the straightening channel (48) in the merging position.

2. The multi-dimensional straightening device according to claim 1, wherein a thickness member (50) is coupled between the set of first rollers (40) and the driven member (20), and a support member (53) is coupled between the set of second rollers (42) and the base plate (11), the width of the support member (53) being substantially equal to the sum of the thicknesses of the thickness member (50) and the driven member (20).

3. Straightening arrangement according to claim 2, characterized in that the support (53) is connected to a lower step (56) by means of two parallel joints (57), the lower step (56) being connected to an adjusting member (82);

and a movable member (81) which is designed as an L-shaped body with a link portion (83), wherein the movable member (81) is rotatably connected to the lower step portion (56) to allow the guide roller (44) to be rotatably connected beside the movable member (81), and the link portion (83) is interposed between two engaging portions (57) which compress a spring (58) in cooperation with the lower step portion (56) so that the spring (58) pushes the link portion (83) back to allow the movable member (81) to touch the adjusting member (82).

4. The multi-size straightener in accordance with claim 3, characterized in that the adjusting piece (82) is a screw which is locked into the low step (56).

5. Straightening apparatus according to claim 3, characterized in that a side wheel (46) is rotatably arranged beside the lower step (56), which side wheel (46) is on a different side of the support (53) than the guide wheel (44).

6. The multi-size straightening apparatus according to claim 1, wherein the base plate (11) and the driven member (20) are connected by a set of guide bolts (30), and the set of guide bolts (30) passes through the driven member (20) and a plurality of parallel restriction holes (12) formed in the base plate (11).

7. Straightening device according to claim 6, characterized in, that the necessary lubricating oil is added between the base plate (11) and the driven member (20).

8. The multi-size straightening device according to claim 6, characterized in that the base plate (11), the driven member (20) and an active member (60) are connected together by a driving stud (34), the driving stud (34) passes through a transverse hole (21) formed in the driven member (20) and an arc-shaped hole (14) formed in the base plate (11) through the active member (60), and the arc-shaped hole (14) and the transverse hole (21) are staggered with each other so that the driving stud (34) is located at the intersection of the arc-shaped hole (14) and the transverse hole (21).

9. A multi-size straightening device is characterized by comprising:

a substrate (11);

a driven member (20) disposed on the base plate (11) and capable of reciprocating between an open position and a closed position; and

a group of first rollers (40) and a group of second rollers (42) which are respectively combined on the substrate (11) and the driven part (20); in the disengaged position, the set of first rollers (40) is spaced away from the set of second rollers (42); in the merge position, the first set of rollers (40) is adjacent to the second set of rollers (42) and are staggered to define a straightening path (48) that is discontinuous to allow for the entry and exit of tubes (52) of different diameters.