KR101050388B1 - Manufacturing method of street lamp post and the same thereby - Google Patents

Manufacturing method of street lamp post and the same thereby Download PDF

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Publication number
KR101050388B1
KR101050388B1 KR1020100115594A KR20100115594A KR101050388B1 KR 101050388 B1 KR101050388 B1 KR 101050388B1 KR 1020100115594 A KR1020100115594 A KR 1020100115594A KR 20100115594 A KR20100115594 A KR 20100115594A KR 101050388 B1 KR101050388 B1 KR 101050388B1
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KR
South Korea
Prior art keywords
steel sheet
bending
welding
street lamp
cutting
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Application number
KR1020100115594A
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Korean (ko)
Inventor
김승광
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주식회사 오옴사
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Priority to KR1020100115594A priority Critical patent/KR101050388B1/en
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Publication of KR101050388B1 publication Critical patent/KR101050388B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/10—Making hollow objects characterised by the structure of the objects conically or cylindrically shaped objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B23K31/027—Making tubes with soldering or welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The present invention relates to a method for manufacturing a street lamp post using a steel sheet and a street lamp post according to the present invention, the cutting step of narrowing the width of the steel sheet from one end to the other end; A bending step of bending the ends of the width direction of the cutting steel sheet to form a joint part facing each other at a distance; A guide part inserted into the joint part so that the bending steel sheet is moved, and an induction step of narrowing the separation distance of the joint part by pressing an outer surface of the bending steel sheet in the vicinity of the welding torch; It characterized in that it comprises a welding step for the automatic welding to the junction by the welding torch; characterized in that it has an effect that can provide a street lamp post of excellent quality through a series of continuous automated processes.

Figure R1020100115594

Description

Method of manufacturing street lamp posts and street lamp posts manufactured thereby {MANUFACTURING METHOD OF STREET LAMP POST AND THE SAME THEREBY}

The present invention relates to a method for manufacturing a street lamp post using a steel plate, and a technology related to the street lamp post manufactured thereby.

In general, the street light is approximately 10m in height and is molded to have a smaller outer diameter from the bottom to the top in consideration of structural stability.

The manufacturing method of a known street lamp post is outlined.

After flattening the coiled steel sheet, the steel sheet is cut in a substantially conical shape, and the cut steel sheet is rolled in a round shape and bent to face both ends in the width direction. The bent steel sheet is welded so that the steel sheets are connected as a whole.

The bent steel sheet is inclined obliquely when placed on the ground because the portion that becomes the lower end of the pillar is larger in diameter and smaller in diameter toward the upper end. In addition, because of the long length of the street lamp post, it was not easy to provide automatic equipment for continuous welding work.

For this reason, in the manufacture of street lamp posts using steel sheets, manual welding was performed by workers when welding after bending. In the case of manual welding, in order to maintain a constant welding area of the bent steel sheet, the welding is first performed at a plurality of points. After the welding, the welding is performed in earnest.

However, due to the manual welding, there is a problem that the quality of the product becomes inconsistent according to the skill of the operator and also defective products are generated. And because the bending steel sheet is not completely horizontal, there was a difficulty in welding. In addition, the welding welding occurs a lot during the manual welding, there is a problem that the welding spark is attached to the surface of the bending steel sheet, there was also a problem that the grinding work by post-treatment.

As a prior art related to the present invention, there was a technology related to "Street lamp holding cutting device and cutting method" of Republic of Korea Patent Registration No. 10-0603759. The prior art is a technology for automatically cutting a steel plate in the form of a cone in order to manufacture a street lamp post was composed of a steel plate feeder, a steel plate fixing portion, a cut portion and a cut portion transfer portion.

However, the prior art only suggests a technology for automatically cutting the steel sheet into a predetermined suitable shape to make a street lamp post, the automatic welding technology to be made after that is unknown.

1. Republic of Korea Patent No. 10-603759 (registered on July 14, 2006)

Therefore, in the present invention, it is possible to uniformize the quality of the street lamp post and reduce the cycle time, and to propose a method for manufacturing a street lamp post that can secure a high price competitiveness.

And the conventional manual welding is required for tack welding, but the present invention is to provide a technology that can be manufactured street lamp post while the welding is made to be configured so that the welding is unnecessary.

In addition, it is intended to provide a technology that can eliminate the burden of labor costs by allowing the operation of the equipment even by unskilled workers by making the street lamp struts through automatic welding.

Street lamp holding method of the present invention for achieving the problem as described, the cutting step of cutting so that the width of the steel sheet narrows from one end to the other end; A bending step of forming a bending steel sheet by bending the width direction both ends of the cutting steel sheet to form a joint part facing each other at a distance; Insert a guide into the joint portion to move the bending steel sheet, to provide a cylindrical support core on the lower side of the guide to support the inner surface of the upper side of the bending steel sheet so that the bending steel sheet is moved in a state supported by the cylindrical support core Inducing step of pressing the outer surface of the bending steel sheet in the vicinity of the welding torch to narrow the separation distance of the joint; It characterized in that it comprises a; welding step to make automatic welding to the junction by the welding torch.

delete

In addition, the induction step in the present invention, the pressing force on the outer surface of the bending steel sheet is made by rollers connected to the cylinder, each of the rollers is characterized in that the position is changed in accordance with the movement of the bending steel sheet.

And the street lamp post manufacturing method of the present invention is characterized in that it further comprises a flattening step to flatten the steel sheet before the cutting step and a straightening step to straighten after the welding step.

Furthermore, another aspect of the present invention also relates to a street lamp holder manufactured by the proposed lamp holder.

The method of manufacturing street lamp post according to the present invention can produce a lamp of uniform quality quickly compared to the prior art including manual welding because the street lamp post can be made using a steel plate through a series of continuous automated processes. There is an effect.

And since the existing manual welding is excluded, even the beginners can operate the equipment, thereby reducing the labor cost burden.

In addition, because the welding lamp is made by automatic welding, it is possible to eliminate the phenomenon that welding sparks are attached to the lamppost, so that post-processing work such as grinding is unnecessary, and thus, the lamp holder can be manufactured with a cleaner appearance without grinding marks. .

1 and 2 is a schematic working process diagram for a method for manufacturing a street lamp post according to an embodiment of the present invention.
3 and 4 are schematic perspective views of main parts of the work flow chart.
5 is a cross-sectional view of the completed street lamp post.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Whenever a component is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, not the exclusion of any other element, unless the context clearly dictates otherwise.

1 and 2 to which the appended corresponds to a schematic work flow diagram for a method for manufacturing a street lamp post according to an embodiment of the present invention. 3 and 4 show a schematic perspective view of the main part of the work flow chart. Figure 5 shows a cross-sectional view of the completed street lamp post.

As shown, the manufacturing method of the street lamp post according to the present invention includes a cutting step S1, a bending step S2, an induction step S3, and a welding step S4.

The material of the street lamp post is preferably used as the steel sheet, the coiled steel sheet 10 wound in a rolled state, and the coiled steel sheet 10 is unrolled to be flattened. The flattening of the coiled steel sheet is called the flattening step P1, and the flattened steel sheet is cut by a predetermined length.

After the flattening step (P1) and the cutting step (P2) is followed by a cutting step (S1), in the cutting step (S1) the width of the steel plate 20 as the rectangular steel sheet 20 from one end to the other end It is processed to be narrower. Usually, the street lamp posts are cut in accordance with the steel plate foundations because they form a lower light narrower that is wider and narrower toward the top in order to secure structural stability.

After cutting the steel sheet 20 to a suitable shape, the bending step (S2) is continued, it means to be bent so as to face the width direction both ends of the cutting steel sheet 30 at a predetermined distance apart.

In bending the cutting steel sheet 30, a known bending machine may be used, and the outer steel sheet may be bent in a circular shape or an angled shape having a continuous curved surface. For example, when the angle is in the form of a square, it can be bent in an octagonal form having eight sides.

At the time of bending, there is a predetermined distance so that both ends of the width direction of the cutting steel sheet 30 are not completely stuck, and this part is called a joint part A by which welding is performed in a welding step to be described later. Bonding portion (A) formed through bending is preferably bent to form a constant width over the entire length of the cutting steel sheet (30).

Bending the cutting steel sheet 30 to form a bending steel sheet 40, followed by an induction step S3, and in the induction step S3, the bending steel plate 40 to allow automatic welding to the joint A. This is to move in a constant direction without shaking, by pressing the outer surface of the bending steel sheet 40 during the movement process so that the separation distance of the junction (A) is narrowed to a suitable degree for welding.

More specifically, in order for the bending steel sheet 40 to be correctly moved, as shown in FIG. 2 or FIG. 4, the guide 50 is inserted into the joint portion A so that the bending steel sheet 40 can be moved straight without moving as much as possible. do.

Guide 50 has a thickness that can be inserted into the bonding portion (A) of the bending steel sheet 40 may be of various forms, in the present embodiment, the guide (A) of the fixed guide block 51 One rotatable roller 52 is provided on the left and right sides, and the protrusion pieces 53 protrude to a predetermined thickness forming a circle on the outer circumferential surface of the roller 52.

The protrusion piece 53 of the roller 52 is in a state of being fitted to the joint portion A of the bending steel sheet 40 and the roller 52 may be rotated while contacting the upper surface of the bending steel sheet 40 to be moved. Since the protruding pieces 53 are inserted into the joint portion A, the bending steel sheet 40 is relatively stably linearly moved without being shaken while excessive rotation is limited.

On the other hand, in configuring the guide 50 is more preferably provided with a cylindrical support core 54 below the guide 50. The cylindrical support core 54 is an elongated rod-shaped member that allows the upper side inner surface of the bending steel sheet 40 to be moved while being supported by the cylindrical support core 54.

Since the diameter of the bending steel sheet 40 decreases from one end portion to the other end portion, the upper surface of the upper side of the bending steel sheet 40 is supported and moved by the cylindrical support core 54 to guide the joint portion (A). The bending steel sheet 40 can be moved with 50 always fitted. That is, the bending steel sheet 40 entering the guide 50 has a cylindrical support core 54 in the embodiment of the present invention because the guide 50 is not separated from the joint A only when the joint A is on a horizontal plane. By using so that the bonding portion (A) of the bending steel sheet 40 can come on the horizontal plane.

In addition, the cylindrical support core 54 is excessively at both ends of the bending steel sheet 40 which becomes the bonding portion A when pressing the outer surface of the bending steel sheet 40 in order to adjust the width of the bonding portion (A) of the bending steel sheet 40 It also serves to prevent bending under pressure. For example, when a street lamp post having a circular cross section is made, when both sides of the junction A are not supported when pressing the outer surface to reduce the width of the junction A, both ends of the junction A are inwardly out of the overall curvature. Excessive bending may cause deformation in curvature.

Meanwhile, the artificial pressing force applied to the outer surface of the bending steel sheet 40 uses a plurality of pressure rollers 60 arranged at equal intervals around the bending steel sheet 40. In this embodiment, eight pressure rollers 60 are arranged, and each pressure roller 60 is connected to the cylinder 61 so that the position of the pressure roller 60 can be changed depending on the situation. That is, the position of the pressure roller 60 is controlled to follow the change in the outer diameter of the bending steel sheet 40 to be moved so that the position can be appropriately changed.

Preferably, the pressure rollers 60 are disposed at positions away from the guide 50 to adjust the width of the joint A, and a welding torch 70 for automatic welding is provided after the pressure roller 60.

After the induction step S3, the welding step S4 is continued, and a welding torch 70 is automatically welded to the joint portion A of the bending steel sheet 40 which is provided and moved above the joint portion A. Automatic welding can be made smoothly and quickly because the width of the joint A is adjusted to a suitable degree for welding by the plurality of pressure rollers 60 before the welding is made.

Movement of the bending steel sheet 40 may be achieved by pushing or pulling any one end of the bending steel sheet 40. In this embodiment, the clamp 80 is bitten at one end of the bending steel sheet 40 at a constant speed. By pulling, the bending steel sheet 40 can be moved while being guided by the guide 50.

Since the street lamp posts produced by the welding of the bonding portion A of the bending steel sheet 40 are completed, the street lamp posts may be bent in a long relationship, so that the straightening step P3 is preferably performed to secure straightness. Then attach various accessories.

In another aspect of the present invention, the street lamp post manufactured by the manufacturing method as described above may be bent after cutting the steel plate into a predetermined shape and bonded to both ends in the width direction by automatic welding so as to have a long shape of the lower beam cross talk.

The street lamp post 100 according to the present invention has a circular cross-sectional shape, and may be manufactured in a polygonal form. As an example of the polygon, in this embodiment, a street lamp post having an octagonal cross section is manufactured as shown in FIG. 5. Polygonal street lamp post 100 may be manufactured to have a cross section, such as hexagonal, if necessary.

The street lamp post according to the present invention is integrally formed by automatically welding the joint of the bending steel plate, and the welding part 110 is formed as shown in the drawing.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The present invention can be utilized in the manufacture of street lamp post using a steel sheet.

S1: Foundation stage S2: Bending stage
S3: Induction step S4: Welding step
P1: flattening step P2: cutting step
P3: Calibration Step 10: Coil Steel Plate
20: steel plate 30: cutting steel plate
40: bending steel sheet 50: guide
51: guide block 52: roller
53: protrusion 54: cylindrical support core
60: pressure roller 61: cylinder
70: welding torch 80: clamp
A: junction

Claims (5)

Cutting step of cutting so that the width of the steel sheet is narrowed from one end to the other end;
A bending step of forming a bending steel sheet by bending the width direction both ends of the cutting steel sheet to form a joint part facing each other at a distance;
Insert a guide into the joint portion to move the bending steel sheet, to provide a cylindrical support core on the lower side of the guide to support the inner surface of the upper side of the bending steel sheet so that the bending steel sheet is moved in a state supported by the cylindrical support core Inducing step of pressing the outer surface of the bending steel sheet in the vicinity of the welding torch to narrow the separation distance of the joint;
And a welding step of automatically welding the joint by the welding torch. delete The method of claim 1,
The derivation step,
The pressing force on the outer surface of the bending steel sheet is made by rollers connected to the cylinder, each of the rollers is characterized in that the position is changed according to the movement of the bending steel sheet. The method of claim 3, wherein
The lamppost manufacturing method,
And a flattening step of flattening the steel plate before the cutting step, a cutting step of cutting the steel plate to a certain length, and a straightening step of straightening the steel plate after the welding step. A street lamp post manufactured by the method for manufacturing a street lamp post according to any one of claims 1, 3, and 4.
KR1020100115594A 2010-11-19 2010-11-19 Manufacturing method of street lamp post and the same thereby KR101050388B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101711078B1 (en) 2016-08-09 2017-03-14 주식회사 오옴사 Street lamp
KR20230035017A (en) * 2021-04-07 2023-03-10 가현실 A road facility frame to increase horizontal and vertical resistance
KR20230035554A (en) * 2021-04-07 2023-03-14 가현실 Frame with reinforcement structure
CN117817207A (en) * 2024-02-05 2024-04-05 江苏保均新材科技有限公司 Solar street lamp frame welding equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09263314A (en) * 1996-03-28 1997-10-07 Meikikou:Kk Manufacture of tapered roller for curved conveyor
KR20050110400A (en) * 2004-05-18 2005-11-23 동국중전기 주식회사 Manufacture method of a street light pillar
KR20060026397A (en) * 2004-09-20 2006-03-23 염택상 Forming method of supporter for street-light
KR20080086962A (en) * 2007-11-27 2008-09-29 김용우 Manufacturing methed of knuckle having an eccentric

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09263314A (en) * 1996-03-28 1997-10-07 Meikikou:Kk Manufacture of tapered roller for curved conveyor
KR20050110400A (en) * 2004-05-18 2005-11-23 동국중전기 주식회사 Manufacture method of a street light pillar
KR20060026397A (en) * 2004-09-20 2006-03-23 염택상 Forming method of supporter for street-light
KR20080086962A (en) * 2007-11-27 2008-09-29 김용우 Manufacturing methed of knuckle having an eccentric

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101711078B1 (en) 2016-08-09 2017-03-14 주식회사 오옴사 Street lamp
KR20230035017A (en) * 2021-04-07 2023-03-10 가현실 A road facility frame to increase horizontal and vertical resistance
KR20230035554A (en) * 2021-04-07 2023-03-14 가현실 Frame with reinforcement structure
KR102550003B1 (en) 2021-04-07 2023-06-29 가현실 Frame with reinforcement structure
KR102549997B1 (en) * 2021-04-07 2023-06-29 가현실 A road facility frame to increase horizontal and vertical resistance
CN117817207A (en) * 2024-02-05 2024-04-05 江苏保均新材科技有限公司 Solar street lamp frame welding equipment
CN117817207B (en) * 2024-02-05 2024-05-28 江苏保均新材科技有限公司 Solar street lamp frame welding equipment

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