KR20040003540A - A method manafacture to hanger cage for a alevator door - Google Patents

Abstract

PURPOSE: A manufacturing method of hanger case for elevator door is provided which reduces weight of the hanger case and reduces material cost of the hanger case by fabricating the hanger case by roll forming in such a way that rails are integrally formed on the hanger case. CONSTITUTION: The method comprises first process of bending first, second and third vane parts at a right part of one side and the other side of the steel product and forming a connection part between the first and third vane parts by feeding a steel product into first forming rollers; second process of bending the first and second vane parts to right and left sides, forming a finish part(11a) on an upper part of the second vane part and bending the third vane part(16) to right side by feeding the steel product into second forming rollers; third process of folding the first vane part and finish part(11a), dividingly bending the second vane part into first and second members(12a,12b) and vertically bending the third vane part by feeding the steel product into third forming rollers; fourth process of dividingly bending the first vane part into first and second vanes, bending the first and second members(12a,12b) to right side, bending connection part(15) of the other side of the third vane part(16), thereby forming first bent part(17), and curving the connection part(15) by feeding the steel product into fourth forming rollers; fifth process of bending the second vane(11c) to right side, bending a proper length of the second vane(11c) to form folding part(11e), flattening the connection part(15) and bending the first bent part(17) to left side by feeding the steel product into fifth forming rollers; sixth process of slantly bending the connection part(15) to form second bent part(18) and bending the first bent part(17) to left side by feeding the steel product into sixth forming rollers; seventh process(70) of bending the second bent part(18) to right side and bending the first bent part(17) to left side by feeding the steel product into seventh forming rollers; eighth process of vertically bending the second bent part(18) and bending the first bent part(17) approximately vertically by feeding the steel product into eighth forming rollers; and ninth process of horizontally maintaining the second vane(11c) and second member(12b) and vertically bending the first bent part(17) by feeding the steel product into ninth forming rollers.

Description

Manufacturing method of hanger case for elevator door {A METHOD MANAFACTURE TO HANGER CAGE FOR A ALEVATOR DOOR}

The present invention relates to an elevator, and in particular, by forming a hanger case for guiding the movement of the roller, which is a means of opening and closing the door of the elevator, by roller forming, the hanger case itself is not required to manufacture a rail having a high manufacturing cost. It is to reduce the thickness of, and to reduce the manufacturing cost and material cost relates to an elevator door case manufacturing method.

In general, the elevator is a mechanical device for vertical movement to move cargo or people up and down in a mine, factory, high-rise building, etc., and the entrance is provided at each floor of the building to access the inside of the elevator. Sliding doors are installed at the entrances to prevent them from falling into the hoistway, and hangers are attached to the upper part of the doors to be arranged in a horizontal direction, and rollers are coupled to the hanger so that the rollers are fixed to the hoistway wall. It is opened and closed by moving along the rail. In this case, a hanger case is typically used as a means for fixing the rail.

This conventional elevator will be described with reference to the accompanying drawings.

1 is a cross-sectional view showing a state in which a conventional elevator door is installed, Figure 2 is an enlarged cross-sectional view taken along line A-A of FIG.

As shown in Figure 1 and 2, the conventional elevator door 100 is mounted to the elevator wall 101 of the elevator to move horizontally to open and close the doorway (110).

The door post 200 is mounted on the left and right sides and the upper part of the doorway 110, and the lower part of the doorway 110 suppresses noise and vibration caused by the shaking of the door 100 when the door 100 is opened and closed, thereby providing a quiet operation. The guide door 300 is mounted.

The door post 200 is mounted on the left and right sides and the upper portion of the doorway 110, the hanger case 400 is mounted horizontally on the top.

The hanger case 400 is mounted to the lifting wall 101 as a fixing bracket 401, and a protrusion 410 is formed horizontally.

In addition, a hanger 500 is mounted on an upper portion of the door 100, and a plurality of rollers 700 having a seating groove 710 on which the rail 600 is seated are rotatably mounted on the hanger 500.

The rail 600 is seated in the seating groove 710 of the roller 700 and is horizontally and firmly mounted to the protrusion 410 of the hanger case 400 to guide the movement of the roller 700.

In addition, by mounting the suppression roller 800 to the hanger 500 spaced apart from the lower portion of the rail 600 at an appropriate distance (B) to prevent the roller 700 from suddenly jumping or moving away from the rail 600. do. That is, by lowering the distance B between the lower part of the roller 700 and the suppressing roller 800 and minimizing the manufacturing tolerance of the height dimension C of the rail 600, the roller 700 suddenly drops from the rail 600. Prevents jumping or falling off.

Looking at the operation state of the conventional elevator door configured as described above, when the door 100 is opened and closed by a driving force from the car side not shown in the elevator, the roller is rotatably mounted to the hanger 500 on the top of the door (100) The rail 600, which is firmly mounted on the protrusion 410 of the hanger case 400, which is mounted on the lifting wall 101 by the seating groove 710 and the fixing bracket 401 of the 700, is mutually coupled to the roller ( As the 700 is rotated along the rail 600, the door 100 moves horizontally and is opened and closed.

At this time, the door 300 is installed at the lower portion of the doorway 100 to suppress the noise and vibration caused by the shaking of the door 100 to guide the quiet operation, and the lower portion of the rail 600 and the appropriate interval (B). ) To prevent the roller 700 from suddenly jumping or leaving the rail 600 by the suppression roller 800 mounted to the hanger 500.

However, such a conventional elevator door is manufactured by drawing the rail itself in general with a metal material in order to reduce the manufacturing tolerance of the rail height dimension (C), thereby increasing the manufacturing cost of the rail, and also providing the rail to the hanger case. In order to securely mount, a separate protrusion is integrally formed on the hanger case, and thus, the thickness of the hanger case is increased, thereby increasing the overall weight of the door device, thereby increasing the material cost.

The present invention has been made in order to solve such a conventional problem, the present invention is produced by the roller forming process so that the rail is integrally formed on the hanger case, thereby reducing the manufacturing cost, weight, and material costs It is an object of the present invention to provide a method for manufacturing a hanger case for an elevator, which is to be reduced.

Technical object of the present invention for achieving the above object, the steel is introduced into the first forming roller, the first and second wings are bent to the right side and the other side, the connecting portion between the first and third wings The first step is molded; A second process of flowing into a second forming roller, wherein the first and second wing parts are bent to the right and left sides, the finishing part is formed on an upper end of the second wing part, and the third wing part is bent to the right side; A third process of flowing into the third forming roller to fold the first blade portion and the finish portion, bend the second blade portion into the first and second members, and bend the third blade portion vertically; The first blade part is bent so as to be partitioned into the first and second blades, the first and second members are bent to the right, and the connection part of the other side of the third blade part is bent and first bent. A fourth step of being additionally molded and wherein the connecting portion is curvedly formed; A fifth in which the second blade is bent to the left and the second wing is bent to form a folded portion, the connecting portion is flattened, and the first bent portion is bent to the left. fair; A sixth process of flowing into the sixth forming roller to bend the connecting portion at one side of the first blade to be inclined to form a second bent portion and to form the first bent portion to the left; A seventh step of flowing into the seventh forming roller and bending the second bent portion to the right so that the first and second wing portions are horizontally aligned, and the first bent portion is bent to the left; An eighth process which flows into an eighth forming roller and the second bent portion is vertically bent and the first bent portion is bent to be close to a vertical; And a ninth process flowing into the ninth forming roller to keep the second blade and the second member horizontal and the first bent portion bent vertically.

1 is a front view showing a state in which a conventional elevator door is installed.

2 is an enlarged sectional view taken along the line A-A of FIG.

Figure 3 relates to a door hanger case manufacturing method of the present invention, Figures 3a-3i is a process diagram showing the 1-9 process of the hanger case.

4 is a process chart showing a state of forming a seventh process of the hanger case with a seventh forming roller.

5 is a process chart showing a state in which a hanger case is molded in a first process.

6 is a process chart showing a state in which a hanger case is molded in a second process.

Figure 7 is a process diagram showing a state in which the hanger case is molded in the step 3-4.

FIG. 8 is a process diagram showing a state in which a hanger case is molded at a fifth step.

9 is a front view showing an installation state of the hanger case manufactured according to the present invention.

10 is an enlarged sectional view taken along the line B-B in FIG.

<Explanation of symbols for the main parts of the drawings>

1-9: 1-14 forming roller 10-90: 1-9 process

11,12,13: 1,2,3 wing part 11a: finish part

11b, 11c: 1st and 2nd wing 11e: Folded portion

12a, 12b: first and second members 15: connecting portion

17,18: first and second bent portion 200: hanger case

Hereinafter, with reference to the accompanying Figures 3 to 10 will be described a preferred embodiment of the present invention.

As shown in FIG. 3, the hanger case 200 of the present invention is formed by sequentially forming the first-ninth processes 10-90.

The first process 10 is introduced into the first forming roller (1) consisting of a pair of upper and lower through the conveying means not shown in the steel sheet of the first forming roller (1) on one side of the first and second wings (11) (12) is bent at the same time to the right side, the third blade portion 16 is bent to the right side on the other side, the connecting portion 15 between the first blade portion 11 and the third blade portion (16) Molded horizontally.

In the second process 20, the steel of the first process 10 is introduced into the second forming roller 2 so that the first and second wing parts 11 and 12 are simultaneously bent to the right and left sides. The finish part 11a is shape | molded by folding the edge part of two blade | wing parts 12, and the 3rd blade | wing part 16 is bent-molded to the right.

In the third process 30, the steel material of the second process 20 is introduced into the third forming roller 3 so that the first wing part 11 and the finish part 11a are folded, and the second wing part ( A proper portion of 12) is bent to the right and divided into first and second members 12a and 12b, and the third blade portion 16 is vertically bent.

In the fourth process 40, the steel material of the third process 30 is introduced into the fourth forming roller 4 to bend the proper portion of the first wing part 11 to the left to form the first and second wings 11b. ) 11c, the first and second members 12a and 12b of the second blade portion 12 are simultaneously bent and formed to the right side, and the connecting portion 15 on the other side of the third blade portion 16 is left. Bent to form the first bent portion 17, and the connecting portion 15 between the first blade 11b and the bent portion 17 is formed to be bent.

In the fifth process 50, the steel material of the fourth process 40 is introduced into the fifth forming roller 5 so that the second blade 11c of the first blade part 11 is bent to the left, and the first The proper portion of the second blade 11c in contact with the blade 11 is bent to form the folded portion 11e, the connecting portion 15 is flattened, and the first bent portion 17 is bent to the left.

In the sixth step 60, the steel material of the fifth step 50 is introduced into the sixth forming roller 6 to maintain the connection part 15 on one side of the first blade 11b with the folded part 11e. The second bent portion 18 is formed by bending to the right as much as possible, the first blade 11b is bent to the right, and the first bent portion 17 is bent to the left.

In the seventh step 70, the steel of the sixth step 60 is introduced into the seventh forming roller 7 so that the first and second wing parts 11 and 12 are bent to the right and horizontally. The second bent portion 18 is bent to the right, and the first bent portion 17 is bent to the left.

In the eighth process 80, the steel material of the seventh process 70 flows into the eighth forming roller 8 to bend the second bent portion 18 vertically to maintain horizontality with the first blade 11b. The folded portion 11e is maintained perpendicular to the first blade portion 11b, the second blade 11c and the first and second members 12a and 12b are bent to the right, and the first bent portion is bent. 17 is bent and formed to the left to be close to the vertical.

The ninth step 90 is bent to the left so that the steel of the eighth step 80 is introduced into the ninth forming roller 9 so that the second blade 11c of the first blade portion 11 is maintained horizontally. The second member 12b of the second blade portion 12 is kept horizontal, the first bent portion 17 is vertically bent, and the connecting portion 15 is embossed 15a and bead 15b. Is molded.

At this time, the 1-9 forming roller (1-9) is made up of a pair of upper and lower rotatable and is produced in a shape suitable for the 1-9 process (10-90) of the hanger case 200 hanger case 200 ) Will be molded. That is, the 1-9 forming roller 1-9 maintains the shape suitable for each process of the 1-9 processes (10-90) of the manufacturing method of the hanger case 200, and is formed symmetrically and hanger case 200 ) Will be molded.

On the other hand, Figure 4 is a process chart showing a state of molding the seventh step of the hanger case with a seventh forming roller.

In detail, when the seventh process 70 is manufactured after the completion of the sixth process 60, the second bent portion is formed by the seventh forming roller 7 of one side of the seventh forming roller 7 which is formed as a pair. 18, the second bent portion with another seventh forming roller 7 while supporting the outer side of the folded portion 11e of the first blade 11b and the second blade 11b of the first blade portion 11; (18), the angles and flatness of the first and second wings 11b and 11c of the first wing part 11 are molded.

Meanwhile, FIGS. 5 to 8 sequentially illustrate steps 1-9 (10-90) showing a state in which the hanger case 200 is molded, and FIG. 5 illustrates a state in which the hanger case is molded in the first process. As shown in the figure, the first and second wing parts 11 and 12 and the third wing part 16 of the first step 10 are sequentially bent and molded at a constant angle.

That is, the steel of the first thin plate is introduced and the first and second blade parts 11, 12 are sequentially bent by the rotational motion of the first forming roller 1, and the third blade part 16 is bent up. This is a step for suppressing material flow in the first and second forming rollers 1.

6 shows a second process 20, which is a step of sequentially bending and forming the first, second, and third wing parts 11, 12, and 16.

In addition, FIG. 7 shows the third and fourth processes 30-40, which bend the bottom in a round shape in the reverse direction to form a sharp angle, and form a bent portion of the inclined angle in the third and fourth forming rollers ( 3, 4) to form close to the vertical.

8 shows a fifth step (50-90), in which the round shape of the bottom surface is vertically flat and the final product is formed to maintain the required rigidity. to be. At this time, in order to maintain rigidity, the embossing 15a and the beads 15b can be processed.

9 and 10 are installation state diagrams of the hanger case 200 manufactured as described above. The elevator door 210 of the present invention is mounted to the elevator wall 201 of the elevator to move horizontally to open and close the doorway 220.

The door holder 221 is mounted on the left and right sides and the upper part of the doorway 220, and the lower part of the doorway 220 restrains the noise and vibration caused by the shaking of the door 210 when the door 210 is opened and closed to provide a quiet operation. Guide door 230 is mounted.

The door holder 230 is mounted on the left and right sides and the upper portion of the entrance and exit 220, and the hanger case 200 is mounted on the lifting wall 201 by the horizontally fixed bracket 200a.

The hanger 240 is mounted on the upper part of the door 210, and the roller 250 having the seating groove 251 is rotatably mounted on the hanger 240.

The roller 250 is seated on the folded portion 11e of the hanger case 200 and guided when the door 210 is opened or closed. In addition, by mounting the suppression roller 300 on the hanger 240 spaced apart from the finishing portion (11a) of the hanger case 200 at an appropriate interval (B), the roller 250 jumps suddenly from the hanger case 200. Or to prevent it from falling off.

Referring to the hanger case manufacturing method of the present invention configured as described above, first, as shown in Figure 3a-3i, the steel sheet of the thin plate is introduced into the first process 10 through a conveying means (not shown), a pair of vertical symmetry While the first forming roller 1 rotates, the first and second blade parts 11 and 12 are bent at one side of the steel, and the third blade part 13 is bent at the other side.

In this state, the steel of the first step 10 flows into the second step 20 to simultaneously bend the first and second wing parts 11 and 12 to the right and left sides by the second forming roller 2, The end of the second blade portion 12 is folded to form the finishing portion 11a, and the third blade portion 16 is bent to the right.

Next, the steel material of the second process 20 flows into the third process 30 to fold the first wing part 11 and the finish part 11a, and to adjust the proper portion of the second wing part 12. It is bent to the right and divided into the first and second members 12a and 12b, and the third blade portion 16 is vertically bent and molded.

In such a state, the steel of the third process 30 flows into the fourth process 40 to bend the proper portion of the first wing part 11 with the fourth forming roller 4 to the left to form the first and second wings ( 11b) and 11c, and the first and second members 12a and 12b of the second blade portion 12 are simultaneously bent and formed to the right, and the connecting portion 15 on the other side of the third blade portion 16 is The first bent portion 17 is formed by bending to the left side, and the connecting portion 15 between the first blade 11b and the bent portion 17 is formed to be bent.

Subsequently, the steel material of the fourth process 40 flows into the fifth process 50 to bend the second blade 11c of the first wing part 11 to the left by the fifth forming roller 5, and the first The proper portion of the second wing 11c in contact with the blade 11 is bent to form the folded portion 11e, and the pressing portion is applied so that the curved portion of the connecting portion 15 is flat, and the first bent portion 17 is left. It is bent and molded.

In this state, the steel of the fifth process 50 flows into the sixth process 60, and the connecting part 15 on one side of the first blade 11b is horizontally parallel to the folded portion 11e by the sixth forming roller 6. The second bent portion 18 is formed by bending to the right so as to be retained, the first blade 11b is bent to the right, and the first bent portion 17 is bent to the left.

Next, the steel of the sixth process 60 flows into the seventh process 70, and the first and second blade parts 11 and 12 are bent to the right side horizontally by the seventh forming roller 7. The second bent portion 18 is bent to the right to be molded, and the first bent portion 17 is bent to the left.

In this state, the steel material of the seventh process 70 flows into the eighth process 8 to bend the second bent portion 18 vertically with the eighth forming roller 13 so as to be parallel to the first blade 11b. It is held, the folded portion 11e is maintained perpendicular to the first blade portion 11b, the second blade 11c and the first and second members 12a, 12b are bent to the right to bend, and the first bend The part 17 is bent to the left to be close to the vertical.

Next, the steel material of the eighth step 8 flows into the ninth step 9 and is bent to the left so that the second blade 12c is horizontally maintained by the ninth forming roller 9 so that the first blade part ( The second member 12b of 12 is kept horizontal, the first bent portion 17 is bent vertically, and the connecting portion 15 is formed with an embossing 15a and a bead 15b.

At this time, the 1-9 forming roller (1-9) is made up of a pair of upper and lower rotatable and is produced in a shape suitable for the 1-9 process (10-90) of the hanger case 200 hanger case 200 ) Will be molded. That is, the 1-9 forming roller 1-9 maintains the shape suitable for each process of the 1-9 processes (10-90) of the manufacturing method of the hanger case 200, and is formed symmetrically and hanger case 200 ) Will be molded.

On the other hand, when forming the seventh process after completing the sixth process of the hanger case, as shown in Figure 4, the second bent portion 18 by the seventh forming roller 7 of one of the pair of seventh forming roller 12 ), The second bent portion 18 with the other seventh forming roller 12 while supporting the outer side of the folded portion 11e of the first blade 11b and the second blade 11b of the first blade portion 11. ), And the angle and flatness of the first and second blades 11b and 11c of the first blade portion 11 are molded.

5 to 8 sequentially show steps 1-9 (10-90) showing the state in which the hanger case 200 is molded, and FIG. 5 shows a state in which the hanger case is molded in the first step. As shown in the figure, the first and second wing parts 11 and 12 and the third wing part 16 of the first step 10 are sequentially bent and molded at a constant angle.

That is, the steel of the first thin plate is introduced and the first and second blade parts 11, 12 are sequentially bent by the rotational motion of the first forming roller 1, and the third blade part 16 is bent up. This is a step for suppressing material flow in the first and second forming rollers 1.

6 shows a second process 20, which is a step of sequentially bending and forming the first, second, and third wing parts 11, 12, and 16.

In addition, FIG. 7 shows the third and fourth processes 30-40, which bend the bottom in a round shape in the reverse direction to form a sharp angle, and form a bent portion of the inclined angle in the third and fourth forming rollers ( 3, 4) to form close to the vertical.

8 shows a fifth step (50-90), in which the round shape of the bottom surface is vertically flat and the final product is formed to maintain the required rigidity. to be. At this time, in order to maintain rigidity, the embossing 15a and the beads 15b can be processed.

Meanwhile, referring to FIG. 9 and FIG. 10, the operation state of the door 210 in the state in which the hanger case 90 is installed will be described. When the door 210 is opened and closed with a driving force from a car side not shown in the elevator, the door ( The folding portion of the hanger case 200 in a state in which the seating groove 251 of the roller 250 rotatably mounted to the hanger 240 on the upper part 210 is mounted to the lifting wall 201 by the fixing bracket 200a. 11e) is coupled to the roller 250 is rotated along the folded portion (11e) of the hanger case 200, the door 210 is moved horizontally and is opened and closed.

At this time, by the door 230 mounted on the lower portion of the doorway 220 to suppress the noise and vibration caused by the shaking of the door 210 to guide the quiet operation, and finish portion (11a) of the hanger case 200 The roller 240 is prevented from suddenly jumping or leaving the folded portion 11e of the hanger case 200 by the suppression roller 300 mounted to the hanger 240 to be in close contact with the lower portion.

According to the method for manufacturing an elevator door hanger case of the present invention as described above, in order to manufacture a hanger case for guiding the movement of the hanger, which is a means for opening and closing the elevator door, 1-1-9 is suitable for the shape of the hanger case. It is possible to mass-produce each of the processes while sequentially passing the steel inputted by the rotational movement of the 1-9 forming rollers provided in the process, thereby eliminating the need to manufacture a separate rail having a high production cost. It is saved and the effect of increasing the rigidity of the hanger case itself is provided.

Claims (2)

Steel is introduced into the first forming roller 1, and the first and third wing parts 11, 12 and 16 are bent to the right side on one side and the other side, and the first and third wing parts 11 ( 16, a first step 10 in which the connecting portion 15 is formed; The first and second blade parts 11 are bent to the right and left side by flowing into the second forming roller 2, and the finishing part 11a is formed on the second blade part 12, and the third A second step 20 in which the wing portion 16 is bent to the right; Flows into the third forming roller (3) and the first blade portion (11) and the finishing portion (11a) are folded, and the second blade portion (12) to the first and second members (12a) (12b) A third process (30) bent to be partitioned and the third wing portion (16) is bent vertically; Flows into the fourth forming roller 4 and is bent so that the first blade portion 11 is divided into first and second blades 11b and 11c, and the first and second members 12a and 12b are right. A fourth step 40 of bending the connection part 15 on the other side of the third wing part 16 to be bent to form a first bent part 17 and to form the connection part 15 to be bent; The second blade 11c is bent to the left, the second blade 11c is bent to the left, and the appropriate length is bent to form the folded portion 11e, and the connecting portion 15 is formed. A fifth process 50 which is flattened and the first bent portion 17 is bent to the left; The second bending portion 18 is formed by inclining the connecting portion 15 on one side of the first blade 11b to be introduced into the sixth forming roller 6, and the first bending portion 17 is moved to the left side. A sixth step (60) formed by bending; The second bent portion 18 is bent to the right so that the first and second blade portions 11 and 12 are horizontally introduced to the seventh forming roller 7, and the first bent portion 17 A seventh step 70 in which b) is bent to the left; An eighth process (80) which flows into the eighth forming roller (8) and the second bent portion (18) is vertically bent, and the first bent portion (17) is bent to be close to the vertical; And The ninth process 90 is introduced into the ninth forming roller 9 so that the second blade 11c and the second member 12b are horizontal, and the first bent portion 17 is bent vertically. ); Hanger case manufacturing method for an elevator door, characterized in that consisting of. The elevator according to claim 1, wherein the angle and the flatness of the folded portion (11e) are formed by the pair of seventh forming rollers (7) in the folded portion (11e) of the seventh process (120). Method for manufacturing hanger case for door.