KR20190035321A - Wheel manufacturing method using wheel preheater - Google Patents

Abstract

The present invention relates to a method for manufacturing a wheel using a wheel preheater, capable of improving easiness of manufacture of a wheel by consecutively smoothly performing casting manufacture of a preform, preprocessing and preheating of a rim, and flow foaming. According to the present invention, the method for manufacturing a wheel using a wheel preheater comprises: a step of preform manufacturing step of manufacturing the preform by casting; a preprocessing step of preprocessing the rim of the preform casted to enable the weight to be consistent; a preform preheating and carrying step of installing the preform on an ascending and descending support unit after opening a cover of a main body formed in a wheel preheater by using an opening and closing unit and moving raising and moving the ascending and descending support unit installed in the main body using an ascending and descending unit at same time; a preform preheating preparing step of burying the rim of the preform in fluidized sand by closing the opening of the main body by covering the cover by using the opening and closing unit and moving the ascending and descending support unit downward by using the ascending and descending unit at the same time, wherein the preform is installed on the ascending and descending support unit; a preform preheating step of preheating only the rim of the preform buried in the fluidized sand by using heat circulating by being supplied to the fluidized sand filled in the main body of the wheel preheater; a preform unloading step of unloading the preform completely preheated from the main body by ascent of the ascending and descending support unit and opening of the cover formed in the wheel preheater; a release agent spraying step of spraying a release agent to the lower part of the preheated preform; and a flow foaming step of machining the preform in the shape of a wheel by flow-foaming the same after the preform to which the release agent is sprayed is installed on a foaming device.

Description

[0001] The present invention relates to a wheel manufacturing method using a wheel preheater,

The present invention relates to a wheel manufacturing method using a wheel preheater. More specifically, it is possible not only to increase productivity and productivity of a wheel through continuous manufacturing, but also to prevent occurrence of defective products by preventing heat deformation The present invention relates to a wheel manufacturing method using a wheel preheater, which can prevent a safety accident, simplify the operation, and facilitate maintenance.

Generally, wheels made of aluminum or magnesium are produced by forging and casting.

Forging and casting are performed by dissolving aluminum or magnesium ingot (INGOT), which is a raw material, into a casting mold, cooling the cast preform to form a wheel shape, Thereby completing the production.

However, as described above, when casting an aluminum wheel and completing the shape of the wheel by casting and forging, there is a problem in that the thickness of the wheel becomes thick in order to maintain the strength of the wheel, There is a problem that the weight of the wheel becomes unnecessarily large.

That is, since the aluminum wheel is manufactured only by casting, the respective portions and the thickness of the wheel are set by calculating the strength at the time of casting, and it is difficult to make the structure of the aluminum wheel by the above casting difficult. There is a problem that it has to be thickened, which causes the overall weight of the aluminum wheel to become unnecessarily large.

Therefore, conventionally, in order to solve such a problem, an aluminum wheel manufacturing method such as Korean Patent Registration No. 10-0661199 and a manufacturing method of a vehicle wheel such as "10-1169309" have been developed. A forming portion is formed in the rim portion of the wheel during casting, and then the forming portion is machined using flow forming.

KR 10-0661199 (Dec. 18, 2006) B1 "Manufacturing Method of Aluminum Wheel" - MITECH Corporation KR 10-1169309 (July 23, 2012) B1 "Manufacturing method of vehicle wheel" - Hands Corporation

However, in the above-described conventional technique, since the preform cast before the flow forming is heated in a rotary manner while being installed in the preheater, not only the rim portion forming the flow forming but also the pre- This causes deformation of the disc portion, which causes a problem of increasing the failure rate of the manufactured wheel.

It is an object of the present invention to provide a wheel manufacturing method using a wheel preheater, which facilitates the manufacture of a preform, the preliminary machining of the preform, the preheating, and the flow forming smoothly and continuously.

Further, according to the present invention, the positions of the processing chuck and the atmospheric chuck can be easily changed by 180 ° rotation of the rotary table, so that the preforming of the preform, the removal of the foreign substances generated in the preliminary processing, The present invention aims to provide a wheel manufacturing method using a wheel preheater capable of preventing the thermal deformation of the disc portion and preventing defective products by preheating only the rim portion of the preform.

In addition, the present invention enables the opening and closing of the main body using the opening and closing means, the lifting and lowering of the lifting and lowering support unit using the lifting unit, and the loading and unloading of the preforms automatically, And it is an object of the present invention to provide a wheel manufacturing method using a wheel preheater that can prevent a safety accident caused by a work.

In addition, the present invention can simplify the structure of the forming machine by pre-spraying the releasing agent to the lower part of the pre-preheated preform before the flow forming, and prevent the spreading agent from being deposited on the forming machine, Wheel preheater, and to provide a wheel manufacturing method using a wheel preheater.

According to an aspect of the present invention, there is provided a method of manufacturing a preform, A preliminary processing step of preliminarily processing the rim of the cast preform to make the weight constant; A preform preheating carrying-in step of opening the lid of the main body constituted by the wheel preheater using the opening and closing means and moving the lifting and lowering support part disposed in the main body by using the lifting means and then placing the preform on the lifting support part; A preform preheating preparation step for closing the opening of the main body by using the opening and closing means to close the opening of the main body and for moving the lifting and lowering receiving portion on which the preform is seated by using the elevating means to bury the rim portion of the preform, ; A preheating preheating step of preheating only the rim of the preform buried in the fluidized bed by using the heat supplied to the fluidized bed filled in the main body of the wheel preheater and circulated; A preform unloading step of unloading the preheated preform from the main body through the opening of the cover formed in the wheel preheater and the upward movement of the lifting / A step of injecting a releasing agent to inject the releasing agent into the lower part of the preheated preform; And a flow forming step of placing the preform sprayed with the mold release agent on the forming machine and then performing a flow forming operation to form a wheel shape.

According to the present invention, there is an advantage that the production of the preform, the preliminary machining of the rim portion, the preheating, and the flow forming can be achieved continuously and smoothly, thereby facilitating the manufacturing of the wheel.

Further, since the position of the machining chuck and the atmospheric chuck can be easily changed by 180 ° rotation of the rotary table, the pre-machining of the preform, the removal of the foreign substances generated in the preliminary machining, Not only can the productivity be increased at the same time, but also the preheating of the rim of the preform is prevented, thereby preventing the thermal deformation of the disk portion, thereby preventing the defective product.

In addition, since the opening and closing of the main body using the opening and closing means, the lifting and lowering of the lifting / lowering unit using the lifting unit, and the loading and unloading of the preform are performed automatically by the robot, It is possible to prevent a safety accident caused by the accident.

In addition, the present invention can simplify the structure of the forming machine by pre-spraying the releasing agent to the lower part of the preform preheated before the flow forming, and prevent the spreading agent from being deposited on the forming machine, There is also.

1 is a flowchart of a wheel manufacturing method using a wheel preheater of the present invention.
2 is a plan view showing the wheel preheater of the present invention.
3 is a conceptual view showing a state in which a processing table and an air chuck of a rotor table are rotated at an angle of 180 ° in the pre-processing step of the present invention.
FIG. 4 is a view showing the preform preheating carrying-in step and the preform preheating preparing step of the present invention.
5 is a partially enlarged view of Fig.
6 is a plan view showing the opening / closing means formed in the main body of the present invention for opening and closing the lid.
Fig. 7 is an operational state in which the lifting / lowering support portion is lifted and lowered by the lifting means of the present invention.
8 is a conceptual diagram showing a structure in which heat is circulated in the wheel preheater of the present invention.
9 is a state diagram showing a step of injecting a release agent of the present invention.
10 is a state diagram showing the flow forming step of the present invention.

In order to achieve the above object, the present invention is as follows.

The present invention relates to a wheel manufacturing method using a wheel preheater for preheating a wheel through a heated fluidized yarn as shown in FIG. 1 or FIG. 2. In a preform making step (S10) for manufacturing a preform 1 through casting, ; A preliminary machining step (S20) of preliminarily processing the rim portion (1a) of the cast preform (1) to make the weight constant; The lid 20 of the main body 10 constituted by the wheel preheater 500 is opened by using the opening and closing means 100 and the elevation support portion 450), and thereafter placing the preform (1) on the lifting and retaining part (450); The lid 20 is closed using the opening and closing means 100 to close the opening 11 of the main body 10 and the lifting and lowering unit 450 on which the preform 1 is mounted using the lifting means 400 So that the rim portion 1a of the preform 1 is embedded in the fluid yarn 13 (S40); A preform preheating step of preheating only the rim portion 1a of the preform 1 buried in the fluidized yarn 13 by using the circulating heat supplied to the fluidized yarn 13 filled in the main body 10 of the wheel preheater 500 S50); A preform unloading step (S60) for unloading preheated preform (1) from the main body (10) by opening the lid (20) provided in the wheel preheater (500) and lifting up the lifting and receiving part (450); A release agent injection step (S70) of injecting a release agent to the lower part of the preheated preform (1); And a flow forming step (S80) of placing the preform (1) sprayed with the release agent on the forming machine (700) and then performing a flow forming operation to form a wheel shape.

First, the preform manufacturing step S10 is a step of manufacturing the preform 1 through casting using aluminum or magnesium. The preform may be manufactured through low-pressure casting, gravity, centrifugal casting, or the like. And therefore, a detailed description thereof will be omitted.

Secondly, the preliminary machining step S20 may be performed by preliminarily machining the formed portion, that is, the rim portion 1a of the preform 1 by using a machine tool such as a vertical lathe (not shown) It is a step to make a certain amount of difference parts.

3, a rotary table 830 provided with two chucks 810 and 820 for mounting the preform 1 is installed on the vertical lathe used in the pre-processing step S20, The two chucks 810 and 820 provided on the rotary table 830 are provided with a machining chuck 810 having the same configuration, The position of the processing chuck 810 and the atmospheric chuck 820 are changed according to the rotation of the rotary table 830 by 180 °. .

The rotary table 830 is rotated so that the driven gear 840 is integrated with the lower portion of the rotary table 830 and then engaged with the driven gear 860 that rotates by driving the motor 850 In addition, various other methods known in the art may be applied to perform rotational operation.

In addition, it is preferable that the atmospheric chuck 820 without preliminary processing further includes a foreign substance removing step S21 for removing foreign substances such as chips and mist by air blowing foreign substances generated during preliminary processing, After the removal of the foreign matter from the processed preform 1 is completed, the preform 1 preliminarily processed by a conventional robot is detached from the atmospheric chuck 820 and the other preform 1 to be preliminarily processed is placed in a waiting It is preferable that the operation of mounting the wafer W on the chuck 820 is performed automatically. In other words, pre-processing of the preform 1, removal of foreign matter, and standby mounting are simultaneously performed by palletizing, thereby shortening the time and increasing the productivity.

Third, the preform preheating and bringing-in step (S30) is a step of bringing the preform 1 preliminarily processed as shown in FIG. 4 into the main body 10 of the wheel preheater 500, The lid 20 of the main body 10 constructed in the wheel preheater 500 is opened and the lifting and supporting unit 450 disposed inside the main body 10 is moved upward by using the lifting means 400 , And then the preform 1 is securely placed on the pedestal of the lifting and supporting unit 450 through the normal robot 300. [

As shown in FIGS. 4 and 5, the main body 10 is configured to perform preheating for easy shaping before the cast preform 1 is flow-formed into a wheel shape. Characterized in that at least one opening (11) for loading and unloading the preform (1) is formed on the upper side and a receiving space (15) filled with the fluidized yarn (13) ) Is a material made of small grains, which is configured to have a structure in which heating is performed when hot air is supplied and air can be flowed through the air, that is, sand.

In addition, it is preferable that the main body 10 further includes an air injection nozzle 17 for blowing foreign matter through air blowing when the opening 11 of the main body 10 is opened by the lid 20, This is to prevent the floating yarn 13 adhered to the preform 1 from sticking to the outside of the main body 10 at the time of preheating the rim portion 1a of the preform 1, It is possible to prevent waste and to prevent the periphery of the present invention from becoming dirty.

The bottom surface of the main body 10 is provided with a discharge port 19 having an on-off valve 18 for discharging the fluid yarn 13. The bottom surface of the main body 10 is connected to the bottom surface of the main body 10, The lid 20 may be connected to the main body 10 so as to form the inclined surface of the opening and closing means 100, And one side thereof is rotatably coupled to the main body 10 through a normal pivot shaft 21 in such a manner as to open and close the opening 11 of the main body 10 through the driving of the main body 10.

In addition, the main body 10 may be configured to be long in the horizontal direction so as to preheat the plurality of preforms 1, but as shown in FIG. 2 or 8, the effective radius of the robot 300 2, which is arranged in a stepwise manner as shown in Fig. 2 so as to bring about an increase in movement of the first main body 10a and a second main body 10a which is arranged on the rear side of the first main body 10a, And it is more preferable that the robot 300 is arranged in the rotation radius of the robot 300 at intervals of 90 degrees around the robot 300 as shown in FIG.

The opening and closing means 100 can be operated by rotating the lid 20 by operating the lid 20 around the pivot shaft 21 as shown in Figures 2, Closing cylinder (120) linked to the rotating shaft (21) of the lid (20) by an operation of opening and closing the formed opening (11).

The opening and closing means 100 includes a link bar 110 coupled to one end of the pivot shaft 21 of the lid 20 and an opening and closing rod 121 hinged to the link bar 110, Closing operation of the lid 20 can be easily performed through smooth operation of the link bar 110 and the opening and closing cylinder 120. In this case, The opening and closing cylinder 120 may be rotatably coupled to the main body 10 through a fixing bracket 130.

The opening and closing cylinder 120 includes a first opening and closing cylinder 120a installed in the first main body 10a and a second opening and closing cylinder 120b installed in the second main body 10b, To open and close the openings 11 of the first and second main bodies 10a and 10b, respectively.

That is, in order to efficiently utilize the space, the first opening and closing cylinder 120a is rotatably coupled to the first body 10a through the fixing bracket 130 while being vertically disposed in front of the first body 10a And is configured to be able to open and close the opening 11 of the first main body 10a by rotating the lid 20 through interlocking with the first link bar 110a coupled to one end of the pivot shaft 21, The second opening and closing cylinder 120b is rotatably coupled to the second body 10b through the fixing bracket 130 while horizontally disposed on the rear upper portion of the second body 10b, And the second link bar 110b coupled to the second link bar 110b is interlocked with the second link bar 110b to rotate the lid 20 to open and close the opening 11 of the second main body 10b.

2, the robot 300 has a structure for loading or unloading the preform 1 into the receiving space 15 through the opening 11 of the main body 10, So that the product such as the preform 1 is transported, so that detailed description is omitted.

2 and 4 to 7, the lifting unit 400 moves up and down the preform 1 carried into the accommodation space 15 of the main body 10 through the robot 300, The lifting and receiving unit 450 on which the preform 1 is seated is structured such that the rim portion 1a of the preform 1 can be buried in the heated fluidized yarn 13 or can be broken by the fluidized yarn 13, 10 in the receiving space 15. To this end, the main body 10 must further include a moving passage 16 for lifting and lowering the lifting and receiving unit 450.

In order to achieve the above-mentioned operation, the elevating means 400 includes the elevating cylinder 420, the elevating and receiving unit 450, and the power transmitting means 460, The lifting and lowering cylinder 420 can be lifted and lowered automatically by lifting and lowering the lifting and lowering support part 450. The lifting and lowering cylinder 420 can be lifted up and down by the main body 10 , And constitutes a lifting rod 410 for lifting and lowering operation.

In addition, the lifting / supporting part 450 can raise / lower the preform 1 within the main body 10 as described above, and can support the preform 1, and at the same time, A pedestal 430 formed in a lattice shape so as to be buried in the receiving space 15 of the main body 10 and disposed in the receiving space 15 of the main body 10, And a moving base 440 protruding from the main body 10 through a base plate 17 and a fixing member 431 for preventing movement of the preform 1 seated on the base 430, .

At this time, it is more preferable that the guide member 16a for guiding the movable table 440 to the main body 10 is vertically formed so as to correspond to the moving passage 16. According to this, The lifting and lowering of the preform 1 can be carried out more stably and the loading and unloading of the preform 1 can be more easily achieved.

In addition, the power transmission means 460 may be a means for moving the lifting and lowering receiving portion 450 up and down by using the driving force of the lifting cylinder 420, such as a normal pulley or a belt pulley.

For example, the power transmission unit 400 may include a vertical mounting unit 460a, first and second connecting rods 461 and 462, a main moving unit 465, and a follower unit 469, The configuration of the power transmitting means 460 will be described in more detail below.

The vertical mounting base 460a of the power transmitting means 460 is vertically coupled to the upper portion of the main body 10 for the installation of the respective components of the power transmitting means 460, The first and second connecting rods 461 and 462 are mounted on the vertical mounting table 460a and are rotatably coupled to each other through a normal bearing coupling, .

The main moving part 465 is configured to transmit the driving force of the lifting cylinder 420 to the first connecting rod 461 to rotate the first connecting rod 461, And the other side is coupled to the outer circumferential surface of the main roller 463 while one side of the main roller 463 is coupled to the lifting rod 410 of the lifting cylinder 420. In accordance with the driving of the lifting cylinder 420, And a first connecting chain 464 for rotating the first connecting rod 461 coupled with the first connecting rod 463.

The follower 469 is configured to move the lifting and lowering support unit 450 up and down through the rotating force transmitted to the first connecting rod 461. The first connecting rod 461 is spaced apart from the main roller 463, A driven roller 467 coupled to the second connecting rod 462 so as to correspond to the interlocking roller 466 and a driven roller 467 having one side connected to the moving base 440 And the other side is coupled to the outer circumferential surface of the interlocking roller 466 and connects the interlocking roller 466 to the driven roller 467 and the lifting and supporting unit 450 to be interlocked with the main moving unit 465 And a second connecting chain 468.

The main roller 463, the interlocking roller 466, and the driven roller 467 may be formed of not only a roller but also a normal gear having protrusions formed on the outer circumferential surface thereof, 464, and 468 may be formed by forming a protrusion on both sides thereof so that the first and second link chains 464 and 468 are seated and wound around the outer periphery, The chains 464 and 468 may be integrally combined with the driven roller 463 or the interlocking roller 466 through welding or the like.

In the above description, the second connecting rod 462 is rotatably coupled to the vertical mounting base 460a. However, the second connecting rod 462 may be a fixed shaft other than the rotating shaft, and the driven roller 467 may be rotated It can be said that it is possible to change the configuration to the configuration.

Fourth, the preform preheating preparation step S40 is a step of closing the main body 10 and burring the rim portion 1a of the preform 1 in the fluidized yarn 13 as shown in Fig. 4, The opening and closing operation of covering the lid 20 is performed by using the opening and closing cylinder 120 constituted by the means 100 so as to close the opening 11 of the main body 10. At the same time, The lifting and lowering cylinder 450 connected to the coin transferring means 460 is moved down by interlocking the power transmitting means 460 through the driving of the elevating cylinder 420.

Therefore, the preform 1 placed on the pedestal 430 of the lifting and supporting unit 450 is buried in the fluid thread 13, Only the rim portion 1a except for the disc portion 1b of the preform 1 is buried in the fluidized yarn 13. The rib portion 1a of the preform 1,

Fifthly, the preform preheating step S50 is a step of preheating the rim portion 1a of the preform 1 buried in the fluidized yarn 13 by circulating and supplying heat to the fluidized yarn 13 filled in the main body 10, 2 or 8, the main body 10 should further include a heat supply unit 50 and a heat circulation unit 60. [

The heat supply means 50 includes at least one supply pipe 30 embedded in the fluidized yarn 13 in a state of being connected to the main body 10 and connected to the supply pipe 30, The blower 40 and the blower 41 can be constituted.

The supply pipe 30 is formed with a through hole 31 in a downward direction for easily transferring heat to the fluidizing yarn 13 without clogging by the fluidizing yarn 13, It is possible to preheat only the rim portion 1a necessary for the flow forming by limiting the falling range of the preform 1 brought into the main body 10, And the thermal deformation of the disc portion 1b is prevented, thereby preventing defective products from being produced.

The heat circulating means 60 is configured to prevent unnecessary power consumption by circulating the heat supplied to the inside of the main body 10 and is provided with a supply pipe 30 And is connected to the main body 10 to constitute an exhaust pipe 61.

The exhaust pipe 61 is further provided with a damper 61a for adjusting the circulation of heat and a dust collector 63 for filtering the foreign substances contained in the heat circulated through the exhaust pipe 61 The dust collector 63 can be easily constructed of a conventional cyclone dust collector or the like and the heat that has passed through the dust collector 63 can be circulated through the connecting pipe 65 50, the heat circulation inside the main body 10 can be achieved.

Sixth, in the preform unloading step S60, the preform 1 having been preheated through the above process is taken out to the outside of the wheel preheater 500, and the driving of the opening / closing cylinder 120 in the opening / The opening 11 of the main body 10 is opened by operating the lid 20 to open and close the lid 20 and the lifting and lowering cylinder 400, It is easy to lift the part 450 and then unload the preform 1 to the outside using a conventional robot 300. [

When the opening 11 of the main body 10 is opened as described above, air blowing is automatically performed through the air injection nozzle 17 provided around the opening 11, 13 of the fluidized yarn 13 to prevent the fluidized yarn 13 from coming out of the wheel preheater 500 and to prevent unnecessary waste of the fluidized yarn 13 and to prevent the periphery from becoming dirty .

The preform 1 taken out to the outside of the wheel preheater 500 may be immediately transferred to the next process but may be pneumatically washed so as to completely remove the fluidized yarn 13 partially remaining in the preform 1 It is preferable to further perform a normal foreign matter removing step (S61).

A seventh step of injecting a releasing agent 70 is a step of injecting a releasing agent to the lower part of the preform 1 for easy detachment of the preform 1 to be seated on the mandrel at the time of flow forming as shown in FIG. In order to prevent the scattering of the release agent, the release agent is sprayed through the release agent sprayer 610 installed on the lower side in the state of being transferred to the ordinary booth 600.

Further, it is preferable to further include a dust collecting device 620 for suction on the upper side of the preform 1 to which the releasing agent is dispensed. According to this, since the releasing agent to be scattered can be sucked by the dust collecting device 620, The mold release agent is prevented from being blown into the workplace, thereby maintaining a clean environment.

Eighth, in the flow forming step S80, as shown in Fig. 10, the preform 1 on which the releasing agent is injected is placed on the forming machine 700, and then the rim portion is flow-formed into a wheel shape, A detailed description thereof will be omitted.

The operation of the preferred embodiment of the present invention will now be described.

First, the preform 1 is repeatedly manufactured through casting. (S10)

The preform 1 thus cast is mounted on an atmospheric chuck 820 formed in a rotary table 830 of a vertical lathe and then rotated by 180 degrees to rotate the rotary table 830 to an atmosphere chuck 820 is changed to the position of the processing chuck 810 and then the rim portion 1a of the preform 1 held in the processing chuck 810 is preliminarily processed by using the vertical lathe, The other preform 1 is mounted on the preform 1 (S20). (S20)

After the preliminary machining is completed as described above, the position of the machining chuck 810 and the atmosphere chuck 820 are mutually changed through the rotation of the rotary table 830 by 180 ° so that the other preform 1 can be preliminarily machined At the same time, the preprocessed preform 1 is removed from the body 10 of the wheel preheater 500 after the process of removing foreign substances through air blowing (S21) . The new preform 1 is mounted on the unattached air chuck 820 to reduce the working time for preliminary processing of the preform 1 using the rotary table 830 and foreign matter removal and standby mounting of the preform 14 This will lead to increased productivity.

After the preliminary machining of the rim portion 1a of the preform 1 is completed as described above, the lid 20 is rotated by using the opening / closing cylinder 120 provided in the opening / closing means 100, And then the preform 1 cast using the robot 300 is carried into the receiving space 15 of the main body 10 and is securely placed on the pedestal 430 of the elevation receiving portion 450, (S30). ≪ RTI ID = 0.0 >

Thereafter, the lid 20 is closed through the opening / closing cylinder 120 to raise the lifting cylinder 420 constituting the lifting means 400 in a state of closing the opening 11 of the main body 10, The means 460 is interlocked in the clockwise direction and the lifting and receiving unit 450 on which the preform 1 is placed is lowered through the interlocking of the power transmitting means 460.

The movable base 440 of the lifting and supporting unit 450 is guided along the guide member 16a and the moving passage 16 formed in the main body 10 so that the preform 1 is stably lowered, The lifting operation of the lifting and lowering support part 450 is performed by the lifting operation of the lifting support part 450 by the lifting operation of the lifting support part 450, Only the rim portion 1a except for the disc portion 1b of the preform 1 is buried in the floating yarn 13. In operation S40,

The rim portion 1a of the preform 1 buried in the fluidized yarn 13 is supplied to the fluidized yarn 13 heated to a predetermined temperature by receiving the heat through the through hole 31 of the supply pipe 30 constituted by the heat supply means So that the preheating operation is performed. Since the heat is continuously circulated through the hot air circulation means 60 supplied to the fluid yarn 13, power consumption due to the external discharge of the heat can be prevented, and the workplace is excessively warmed (S50), and it is also possible to prevent malfunction due to heat, thereby simplifying maintenance. (S50)

After the preheating of the rim portion 1a of the preform 1 is completed, the opening and closing of the opening 11 of the main body 10 using the opening and closing means 100 and the opening and closing of the elevation receiving portion 450 using the elevating means 400, The preform 1 that is seated on the pedestal 430 of the lifting and supporting unit 450 can be taken out to the outside by using the robot 300. As described above, Air blowing is performed in the air injection nozzle 17 provided in the main body 10 and the operation of blowing out the floating yarn 13 attached to the preform 1 at the time of preheating is performed at the same time, It is possible to prevent waste of the fluidized yarn 13 and prevent the surrounding of the present invention from becoming contaminated by the fluidized yarn 13. [ The phenomenon is prevented and the worksite can be maintained in a pleasant and safe environment. . (S60)

The unloaded preform 1 is completely removed from the preform 1 by pneumatic washing and then transferred to the booth 600 in step S61 to apply the release agent to the lower part of the preheated preform 1. In step S70,

After that, the preform 1 is placed on a mandrel and subjected to ordinary flow forming to shape the rim portion 1a to form a wheel shape. (S80) A preform 1 made in a wheel shape is detached from the mandrel And the work is completed by moving it to the out conveyor.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

1: preform 1a: rim portion 1b: disk portion
[0001] The present invention relates to an apparatus and a method for operating the same, and more particularly, to an apparatus and a method for operating the apparatus. [0003] 2. Description of the Related Art [0004]
20: lid 21:
30: Supply pipe 31: Through hole
40: hot air blower 41: blower 50:
60: hot circulation means 61: exhaust pipe 61a: damper 63: dust collector 65: connecting pipe
[0001] The present invention relates to an apparatus and a method for opening / closing a cylinder,
300: Robot
The present invention relates to an elevating device for an elevating and lowering apparatus for an elevating and lowering apparatus for an elevating and lowering apparatus, 464: first connecting chain 465: main moving part 466: interlocking roller 467: driven roller 468: second connecting chain 469:
500: Wheel preheater
600: booth 610: release agent sprayer 620: dust collector
700: forming machine
810: machining chuck 820: waiting chuck 830: rotary table 840: driven gear 850: motor 860:

Claims (3)

A preform manufacturing step S10 for manufacturing the preform 1 through casting;
A preliminary machining step (S20) of preliminarily processing the rim portion (1a) of the cast preform (1) to make the weight constant;
The lid 20 of the main body 10 constituted by the wheel preheater 500 is opened by using the opening and closing means 100 and the elevation support portion 450), and thereafter placing the preform (1) on the lifting and retaining part (450);
The lid 20 is closed using the opening and closing means 100 to close the opening 11 of the main body 10 and the lifting and lowering unit 450 on which the preform 1 is mounted using the lifting means 400 So that the rim portion 1a of the preform 1 is embedded in the fluid yarn 13 (S40);
A preform preheating step of preheating only the rim portion 1a of the preform 1 buried in the fluidized yarn 13 by using the circulating heat supplied to the fluidized yarn 13 filled in the main body 10 of the wheel preheater 500 S50);
A preform unloading step (S60) for unloading preheated preform (1) from the main body (10) by opening the lid (20) provided in the wheel preheater (500) and lifting up the lifting and receiving part (450);
A release agent injection step (S70) of injecting a release agent to the lower part of the preheated preform (1);
And a flow forming step (S80) of placing the preform (1) sprayed with the releasing agent on the forming machine (700) and then performing flow forming and processing the preform (1) into a wheel shape.
The method according to claim 1, wherein in the preliminary processing step (S20), a rotary table (830) provided with two chucks (810, 820) is installed on a vertical shelf, and the rotary table (830) (1).
The chucks 810 and 820 provided in the vertical shelf 500 are provided with a processing chuck 810 for preliminarily processing the preform 1 and a chuck 810 for loading and unloading the processed preform 1 and loading the preform 1 to be processed And an atmospheric chuck (820).
The method as claimed in claim 1, wherein the pre-processing step (S20) and the preform unloading step (S60) further include a foreign matter removing step (S21, S61) for removing foreign matter adhering to the preform (1) Wherein the wheel preheater is provided with a wheel preheater.

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