KR100254941B1 - Automobile disk wheel molding apparatus - Google Patents

Abstract

PURPOSE: A molding apparatus for manufacturing a vehicle disc wheel is provided to maintain strength at a top fixing platen with punching a hole of a regular diameter in a center of a product as a part of molding process during product-molding. CONSTITUTION: A moving side die(9) moves toward a center of insert of a moving die(5) and a lower inflow hole of a ram subsidiary cylinder(22) is open. A ram(17) drops by tare of a moving board(92), a space block(4) and a die while through a prefill valve(26) open from an oil tank(27), oil is flowed in mass quantity rapidly into a space formed at the ram and at the inner diameter of ram cylinder(20) for the die to be fixed. Oil(28) is allowed in through a ram boost oil inflow hole(21) to offer a normal combining force inside the ram cylinder(20) and to support the die. A material reheated is transferred to an immediate top of center line of a moving die runner(7) downward of the space block(4). Moreover, a pincer of automation device is widened to input the material into the moving die runner and then an upper injection pressurizing plunger(19) advances into the moving die runner by making action of an upper injection pressurizing cylinder(18) proceed to charge the material in a die cavity. So thus pressurization is accomplished.

Description

Reactive High Material Molding Equipment

1 is a longitudinal cross-sectional view showing the entire reaction solid-state molding apparatus implemented in accordance with the present invention, Figure 1 (a) is a longitudinal cross-sectional view of the entire molding apparatus showing a state in which the upper mold and the lower mold fixed to the lower spaced at a predetermined distance.

Figure 1 (b) is a longitudinal cross-sectional view of a state in which the upper mold is molded into the lower mold in the state of FIG.

FIG. 2 (a) is a plan view of the bolster in FIG.

FIG. 2 (b) is a front view of FIG. 2 (a).

FIG. 3 is a process drawing from before the upper mold and the lower mold are combined to press-mold the material and take out the finished product from the mold. FIG. 3 (a) shows the material immediately before the product material is molded in the mold cavity. Sectional view of the state supplied to the moving mold runner.

Figure 3 (b) is a cross-sectional view of the upper injection pressure plunger is pressed into the material supplied to the moving mold runner molded in the desired product shape in the mold cavity.

Figure 3 (c) is a cross-sectional view in which the lower injection pressure plunger is raised in the state of being molded into the product shape in the mold cavity to drill a hole in the center of the product.

Fig. 3 (d) is a cross-sectional view of separating the molded product from the mold in a state where the upper mold is raised and the movable mold is also retracted.

* Explanation of symbols for main parts of the drawings

1: fixed plate la, 2a, 15a: through hole

2: Mobile board 3: Material of product

4: space block 5: moving mold

6: moving mold sleeve 7: moving mold runner

9: moving side mold 10: fixed mold

11: fixed mold sleeve 12: fixed mold runner

14: mold cavity 15: bolster

15b: opening 16: ballcutter sleeve

17: RAM 18: upper injection pressure cylinder

18a: upper injection pressure cylinder rod 19: upper injection pressure plunger

20: ram cylinder 20a: ram cylinder shoulder

21: ram boost oil inlet 22: ram auxiliary cylinder

23: Rod of ram auxiliary cylinder 24: Tie bar

25: prefill cylinder 26: prefill valve

27: oil tank 27a: oil inlet

28: oil 29: lower injection pressure cylinder

30: lower injection pressure plunger 31: product

32: mold base plate 33: extrusion cylinder

34 extruded plate 35 extruded bar

37: Product center construction

The present invention has a spherical non-residual structure and is a reaction solid-forming method for re-heating a billet-type raw material having a size suitable for product production in a reaction solid state in which a solid phase and a liquid phase coexist. In the present invention, a vertical mold clamping and vertical injection pressurizing apparatus for filling and recharging a reheated material into a mold cavity through an inlet of a moving mold or a stationary mold, and particularly a vehicle having a hole in the center of a product A molding apparatus for manufacturing a disc wheel.

The actual working temperature range of reaction solidification method is a very narrow section that can maintain solid phase ratio suitable for product molding even in the temperature range where solid and liquid coexist, so transfer of reheated material to reaction solidification molding device and filling into mold cavity In this process, a series of processes such as pressurization and the like should be carried out very quickly so that the material does not leave the temperature zone by reacting with air or mold. In this regard, the technical configuration implemented on Korean Patent Application Publication Nos. 96-33601 is provided with clamping cylinders on the upper left and right sides of the upper fixing platen, and a main cylinder which can be pressurized at the center thereof, to the clamping cylinder. After the upper mold and lower mold are clamped, the material is transferred from the upper part of the platen to the upper part of the lower mold and press-molded by the punch of the main cylinder, and then the product is ejected using the bottom cylinder after opening the upper and lower molds. Forging device and forging of semi-molten material, characterized by injecting the material into the lower mold and injection molding the material into the upper mold by the operation of the bottom cylinder, and then taking out the product by using the bottom cylinder after opening the upper and lower molds. Method is proposed. However, in the case of the patent application device in the process of filling the material into the mold cavity and pressurizing, in order to first insert the material into the upper upper mold, the raw material is injected from the upper side of the moving platen, so the material is passed through the through plate of the moving platen and the upper mold runner. In order to fill and pressurize the injected material through the upper part of the lower mold, the punch of the main cylinder which is installed on the upper surface of the upper fixed platen and located on the lower side of the upper fixed platen is similar to the material. The material is filled and pressed through the upper mold runner. Therefore, the material is filled with the mold cavity, and in order to press molding, the material and punch must pass through the through hole of the moving platen, and the solid state of the material increases by the time used to pass through the through hole. This can lead to the deterioration of fluidity, which in turn can lead to bad product molding. To insert and press the material, which is another material input method, to the bottom of the lower mold, the bottom cylinder sleeve containing the material is docked on the bottom of the lower mold, and then the rod of the bottom cylinder is raised to fill the material into the mold cavity. It can be pressurized. For this reason, as described above, a problem occurs when the material is introduced into the upper lower mold due to the time required for the bottom cylinder sleeve to be docked on the lower mold lower surface. In the case of the patent application device, the clamping cylinders installed on the left and right sides of the upper fixing platen are large enough to exert the clamping force of the device, and thus, when the moving platen moves up and down, a large amount of oil must be introduced and discharged within a short time. Since the clamping cylinder uses double acting cylinder hydraulic method, it is difficult to inflow and discharge a large amount of oil into the cylinder within a short time when the moving platen is raised or lowered. It may result in a loss of productivity, and when the moving platen is moved up and down along the tie bar by the clamping cylinder, the piston rod of the clamping cylinder is installed on the left and right of the moving platen, and the force can be operated unevenly. Clamping cylinders are installed on the left and right sides of the platen, and the main Because of the structure with the lining installed, through holes for the up and down operation of the piston rod of these cylinders are drilled, so that a large load is applied to the upper fixing platen while the clamping force and the pressing force are simultaneously applied in the work process. This may indicate a weakness in maintaining the strength of the upper fixing platen.

Therefore, the present invention will be described in detail with reference to the accompanying drawings of the reaction material forming apparatus of the present invention devised to solve the problems of the patent application device as an invention devised to solve the above problems as follows.

The through hole 1a is drilled in the center of the fixed plate 1, which is the base of the apparatus A of the present invention, and is a rod of the lower injection pressure cylinder 29 mounted to the bottom of the fixed plate 1 through the through hole. Position the lower injection pressurizing plunger 30 vertically acting on the molding material and connect the bolster 15 having a constant thickness to the upper surface of the fixing plate 1, but one side of the bolster 15 is connected to the bolster 15. The opening 15b is cut to the center portion, and the through hole 15a is laid so that the lower injection pressure plunger 30 can penetrate the center of the bolster 15 and the bolster sleeve 16 is squeezed in the through hole 15a. The fixed mold 10 is fixed to the center of the upper surface of the bolster 15, and the fixed mold runner 12 is inserted into the center of the fixed mold 10, and the fixed mold runner 12 is supported by the fixed mold sleeve 11. . The moving mold (5) and the moving mold (9) are formed in the upper portion of the position coinciding with the center of the fixed mold (10), but vertically penetrates the center of the moving mold (5). When the mold (6) is inserted into the movable mold runner (7) into which the product material (3) is inserted, the movable mold sleeve (6) is squeezed and the movable mold (5) allows a plurality of extrusion bars (35) to be mounted through the tip. A plurality of extrusion cylinders 33 for extruder 34 to fix the upper end of the extrusion bar 35 to move the upper and lower sides of the extrusion bar 35, and to operate the extruder plate 34 up and down on the extruded plate 34. The mold base plate 32 is fixed and the space block 4 is laminated and assembled so that a constant space for the conveyed material of the product material 3 inserted into the mold base plate 32 is secured.

In addition, a through hole 2a is installed in the center of the movable block 2 fixedly installed on the upper surface of the space block 4 so that the upper injection pressure plunger 19 can move up and down through the through hole 2a. The pressurized cylinder 18 is internally installed vertically, and the ram 7 for inserting the upper injection pressure cylinder 18 is screwed into the upper surface of the movable plate 2 by known fastening means, and the outer peripheral surface of the ram 17 is watertightly sealed. The ram cylinder 20 is inserted so that the ram boosting oil inlet 21 is installed on the upper side of the ram cylinder 20, and the outer surface of the ram cylinder 20 and the oil inlet 27a are disposed on the upper surface of the ram cylinder 20. The prefill cylinder (25) is opened to open and close the prefill valve (26) on the upper surface of the center of the oil tank (27) where the oil (28) is poor. Connect with (26). In addition, the ram auxiliary cylinder 22 is mounted on the left and right sides of the ram cylinder 20 at the outer bottom, and the rod 23 of the ram auxiliary cylinder 22 and the upper surface of the movable panel 2 are fixed to each other. 20) and tie bars 24 are arranged at four corners through which the movable plate 2, the bolster 15, and the fixed plate 1 are mounted, but the movable plate 2 is supported by four tie bars 24. And the rod 23 of the ram auxiliary cylinder 22 which is fixed to the shoulder 20a of the ram cylinder 20 so as to move up and down as the ram auxiliary cylinder rod 23 moves forward, so that the overall configuration of the device is achieved. .

When the raw material 3 is introduced into the moving mold runner 7 according to the accompanying drawings, the embodiment of the present invention configured as described above will be described in detail.

1 is a schematic cross-sectional view of the assembled state of the reactive solid-state molding apparatus A according to the present invention, and the prefill valve 26 is opened, and the fixed mold 10 is moved as an initial state condition for the first operation. Known release agent injectors for lubrication of the material introduced in the state in which the mold 5 and the moving side mold 9 are separated from the inside of the moving mold sleeve 6, and for easy separation between the mold and the product after molding Since it is a single device, not shown in the drawing), after the release agent is applied to the upper injection pressure plunger 19, the inside of the movable mold sleeve 6, the mold cavity 14 and the lower injection pressure plunger 30, the release agent injection device is When the lower injection pressure plunger 30 is returned to its original position to coincide with the upper surface of the stationary mold 10, the work preparation for the next work is completed.

In FIG. 2, when the work preparation is completed, the moving side mold 9 advances toward the insert center of the moving mold 5 by the advance of the moving side mold cylinder (not shown in the drawing) by the operation start signal. When this is completed, the lower inlet of the ram auxiliary cylinder (9) is opened while the ram (17) is lowered by the weight of the movable plate (2), the space block (4) and the mold, and in this process the ram cylinder (20) inner diameter And a large amount of oil flows into the space formed on the upper surface of the ram 17 through the prefill valve 26 opened from the oil tank 27 installed on the upper surface of the ram cylinder 20 to fasten the mold. When the moving mold 5 descends and reaches a predetermined position, the prefill valve 26 is closed by reversing the prefill cylinder 25 and the moving mold 5 completes the lowering. When it is combined with the stationary mold (10), ram boost valve (drawing (Not shown), when the oil 28 flows through the ram boost oil inlet 21 to take a normal clamping force in the ram cylinder 20 and press the mold to re-heat the material by using a known automation device. 3) is transferred up to the center line of the movable mold runner 7 located at the bottom of the spacer block 4. As soon as the transfer is completed, the forceps of the automation device (not shown in the drawing because it is a known device) are opened and the material is introduced into the moving mold runner 7, at which point the upper part of the spacer block 4 is inserted. The upper injection pressurizing plunger 19, which is located at the upper part, advances into the moving mold runner 7 by the forward action of the upper injection pressing cylinder 18, and moves the material into the mold cavity 14 through the moving mold inlet 8. Filled and pressurized. Since the above process is performed in the shortest time, it is possible to maintain an appropriate solid phase of the material, so that a good filling operation can be performed, and a high quality product can be obtained after the pressing operation is completed. The known automatic device having completed the material input is retracted to be in the original position, and is positioned in line with the upper injection pressure plunger 19 in the process of being pressurized by the upper injection pressure plunger 19, and the upper injection pressure plunger 19 The lower injection pressurizing plunger 30 having a diameter slightly smaller than the diameter is advanced in accordance with a predetermined working condition by the forward action of the lower injection pressurizing cylinder 29 to prevent secondary defects such as porosity and shrinkage. Let me do it. At this time, a thin solidification layer is formed between the upper injection pressurizing plunger 19 and the lower injection pressurizing plunger 30, which is the upper injection pressurization according to the set working conditions before the product solidification in the mold cavity 14 is completed and the mold is separated. When the upper injection pressurizing plunger 19 is reversed by the backward action of the cylinder 18, the lower injection pressurizing plunger 30, which has been continuously pressurized sequentially, continues to move forward and shears a thin solidified layer to produce the product of the disc wheel. The central shaft hole 37 is drilled, and the upper injection pressure plunger 19 continues to retract and the sheared section is naturally fixed mold 10 when the product 31 (disc wheel) is separated from the mold. Since it falls to the side, it can be separately collected and processed, and since the central shaft hole of the product 31 is drilled in the casting process, the prong cutting process, the next work process of the disc wheel, is omitted. It results in improvement. When the drilling of the central shaft 37 of the disc wheel is completed, the lower injection pressure plunger 30 is advanced to reach the set position and is maintained until the release agent is applied in preparation for the next operation. When the pressurization and drilling of the central shaft hole 37 of the disk wheel are completed as described above, the prefill valve 26 is advanced by the forward action of the prefill cylinder 25 and the ram by the backward action of the ram auxiliary cylinder 22. Since the 17 and the movable plate 2 are raised, the mold is separated into the movable mold 5 and the stationary mold 10. The product 31 rises together with the movable mold 5 in a state surrounded by the movable mold 5 and the movable side mold 9, and when the movable mold 5 rises to reach the set position, the product receiver (not shown in the drawing). After moving forward and completion of the forward movement, the movable side mold 9 is horizontally reversed by the backward action of the movable side mold cylinder so that the product 31 can be separated from the movable mold 5. Extrusion plate 34 to which the piston rod of the extrusion cylinder 33 is connected by the lowering of the extrusion cylinder 33 installed on the left and right sides of the upper surface of the mold base plate 32 when the moving side mold 9 is horizontally reversed. The lowering, the extrusion bar 35 connected to the extrusion plate 34 is lowered to push the product 31 attached to the moving mold 5, the product 31 is separated from the moving mold to fall into the product receiver When the extrusion cylinder 33 is raised and returned to its original position, the product receiver is retracted to its original position, and then the movable plate 2 is raised again to its original position. When the moving plate 2 is completed, the release agent injector is advanced to prepare the work for the next work as shown in FIG. 1, and the work preparation of one cycle is completed by the completion of the work preparation, and the process is repeated. Therefore, the invention is a revolutionary device that can achieve the effect of continuous mass production of high-quality, high-resistance material products.

Claims (4)

In constructing a reactive solid material molding apparatus having a spherical non-residual tissue and reheating a billet-type raw material, which is an appropriate size for producing a product, in a solid state and a liquid state in a reaction solid state, and then pressing and molding the same. The through-hole 1a is drilled in the center of the fixing plate 1, which is the base of the device A of the present invention, in which the ram cylinder 20 is positioned on the upper part of the device and the ram 17 is inserted into the ram cylinder 20. Through this through hole, the lower injection pressurizing plunger 30, which is a rod of the lower injection pressurizing cylinder 29 mounted on the bottom of the fixed plate 1 and pressurizes the molding material, is vertically positioned and fixed plate ( 1) The bolster 15 having a predetermined thickness is connected to the upper surface, but one side of the bolster 15 forms an opening 15b to the center of the bolster 15, but the lower injection pressure plunge 30 in the center of the bolster 15. Penetrates through-hole 15a so that Fix the bolster sleeve 16 to the ball 15a to fix the fixed mold 10 at the center of the upper surface of the bolster 15 and insert the fixed mold runner 12 at the center of the fixed mold 10. 12) the fixed mold sleeve 11 is supported and the movable mold (5) and the movable mold (9) below the movable mold (5) to the top of the position coinciding with the center of the fixed mold (10). The movable mold 5 penetrates the center vertically and clamps the movable mold sleeve 6 in which the movable mold runner 7 is inserted into which the product material 3 is inserted. The extrusion bar 35 is to be through-mounted, but the extrusion bar 35 is interposed through an extrusion plate 34 fixing the top end of the extrusion bar 35 so as to move up and down, and the extrusion plate (34) above the extrusion plate ( Reaction solid material molding formed by installing a mold base plate 32 for fixing a plurality of extrusion cylinders 33 for operating 34 up and down Value. The method of claim 1, wherein the space block 4 is laminated and assembled so as to secure a predetermined space on the upper surface of the mold base plate 32, but the through hole (2) in the center of the movable plate (2) fixedly fixed to the upper surface of the space block (4). 2a) is laid and the upper injection pressurizing cylinder 18 is built vertically and the upper injection pressurizing cylinder 18 is inserted so that the upper injection pressure plunger 19 can be vertically moved through the through hole 2a. (7) is screwed into the upper surface of the movable plate (2) by a known fastening means, and the ram cylinder 20 is inserted into the outer circumferential surface of the ram 17 in a tight manner, and the ram boost oil inlet on the upper side of the ram cylinder 20. (21) is laid out and the upper surface of the ram cylinder 20, the outer cylinder and the oil tank (27a) connected to the oil inlet (27a) to the upper surface of the oil cylinder (27), the center of the oil tank (27) is low Connect the prefill cylinder 25 to the prefill valve 26 to open and close the prefill valve 26 on the upper surface. Yeoseo and reaction molding material device. The ram auxiliary cylinder 22 is mounted on the left and right sides of the ram cylinder 20 to the outer bottom of the ram cylinder 20, and the front end of the rod 23 of the ram auxiliary cylinder 22 and the upper surface of the movable plate are fixed. The tie bar 24 is laid at four corners through which the cylinder 20, the movable plate 2, the bolster 15, and the fixed plate 1 are mounted. The movable plate 2 has four tie bars 24. Reactive solid material molding apparatus, characterized in that the entire configuration of the device is made to support the up and down movement. The lower injection pressure plunger 30, which is the tip of the lower injection pressure cylinder 29 mounted on the bottom of the fixed plate 1, is raised after the product forming operation is completed, so as to perforate the center of the product 31. Reaction solid material molding apparatus to puncture the central shaft 37 of the product.

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