TWM519021U - Sheet metal shape forming system - Google Patents

Abstract

The invention provides a sheet metal shape forming system. The system comprises a plurality of shape forming dies. Each of shape forming dies is moved by a material transfer device. When the shape forming die is moved to a zone for heating shape forming die, it will be pre-heated by a first heating device and a second heating device. When the shape forming die is moved to a waiting zone of shape forming, a sheet metal will be disposed on the top of the shape forming die that has been pre-heated. When the shape forming die is moved to a working zone of shape forming, the shape forming die and a sealing die will be combined into one mold, and a gas supply device will provide a high pressure gas to the mold so that the sheet metal can shape formed as a shaped metal component. Thus, the sheet metal and the shape forming die can be reached the desired temperature of gas pressure for forming shape quickly by pre-heating the shape forming die and the sheet metal, so as to decrease the time of manufacturing the shaped metal component.

Description

Sheet metal forming system

This work relates to a sheet metal forming system, and more particularly to a system for forming sheet metal.

In order to achieve a better texture, in recent years, the outer casing of electronic devices (such as mobile phones) has mostly used metal casings. The protection of the metal casing enables the electronic device to have better crash strength and heat dissipation.

Please refer to Figure 1 for a schematic diagram of the system structure of a conventional sheet metal forming system. As shown in FIG. 1, the sheet metal forming system 10 includes a mold 11 and a gas supply 17. The mold 11 includes a sealing die 13 and a molding die 15. The sealing die 13 includes a sealing cavity 131. The molding die 15 includes a molding cavity 151. The inner surface of the molding cavity 151 is provided with a pattern layer 152. A metal sheet 12 can be placed between the sealing mold 131 and the molding die 151. The gas supply 17 is connected to an input hole 132 of the sealing mold 131 through a gas line 171 to supply the high pressure gas 170 required for the air pressure forming of the metal sheet 12.

Further, at least one heating pipe 19 is provided around the sealing die 13 and the molding die 15. When the air pressure forming system 10 is to perform a one-pressure molding process for the metal sheet 12, first, the heating tube 19 applies a high temperature heating to the metal sheet 12 disposed in the mold 11. When the metal sheet 12 is heated to a predetermined temperature, its body will assume a softened state. Then, the gas supply unit 17 supplies a high-pressure gas 170 to the sealed chamber 131 of the sealing mold 13 through the gas line 171 and the input hole 132 to apply gas pressure to the heat-softened metal sheet 12, so that the metal sheet 12 is subjected to gas pressure. It is attached to the pattern layer 152 of the molding cavity 151 of the molding die 15 to be molded into a metal molding 121.

In the past, when the air pressure forming system 10 performs the air pressure forming process, a room temperature metal sheet 12 is placed in the mold 11 for heating, and therefore, the mold 11 and the metal sheet 12 are required. It takes a long time to heat up to the temperature required for the air pressure forming, and this will affect the time it takes for the metal molded part 121 to be produced and the amount thereof produced.

One of the purposes of this creation is to propose a metal sheet forming system in which the metal sheet can be preheated before entering the metal forming operation stage, so that the metal sheet can be heated for a short time to reach the temperature required for the air pressure forming when entering the metal forming operation stage. Rapid molding of metal molded parts.

Another object of the present invention is to provide a metal sheet forming system, the molding system comprising a metal forming cooling zone, which can be moved into a metal forming cooling zone to form a cooling zone to form a mold to cool off as early as possible. In order to effectively shorten the production time of metal molded parts, the number of metal molded parts is increased.

A further object of the present invention is to provide a sheet metal forming system, the forming system comprising a metal forming cooling zone, the metal forming cooling zone comprising a plurality of cooling nozzles, the metal forming part inside the forming die and the forming cavity moving to the metal When forming the cooling zone, the cooling nozzle will spray a cooling fluid to a part of the metal forming part disposed on the top side end of the forming mold, so that part of the metal forming part can be quickly cooled down by the cooling fluid to be released from the molding die. After the part of the metal part that has been demolded is gripped, the metal molded part can be taken out from the cavity of the molding die.

In order to achieve the above object, the present invention provides a sheet metal forming system comprising: a plurality of material moving devices; a plurality of forming molds, each of which has a molding cavity on the inner side of the top end and is respectively moved by the material moving device; The heating zone includes a first heating device and a second heating device. When the molding die is moved to the metal heating zone through the material moving device, the first heating device is placed under the bottom end of the molding die and the second heating device Placed on top of the molding die, the first heating device and the second heating device preheat the molding die; a metal forming waiting region, the heated molding die moves from the molding die heating zone to the metal molding through the material moving device And a metal plate is placed on top of the heated molding die; a metal forming work area includes a sealing die, and a sealing cavity and at least one input hole are arranged inside the bottom end of the sealing die, and the heated The forming mold and the metal sheet placed on the top end thereof are moved from the metal forming waiting area through the moving device To the metal forming work area, the sealing mold and the forming mold are combined into a mold. When the sealing mold and the forming mold are in a closed state, the metal sheet is sandwiched between the sealing cavity of the sealing mold and the molding cavity of the molding die, wherein the mold Each of the periphery is provided with at least one heater for heating the mold; and a gas supply is connected to the input hole of the sealing mold through a gas pipeline, wherein the gas supply provides a high pressure gas, and the high pressure gas is supplied through the gas pipeline and the input The hole is input to the sealing chamber to apply a gas pressure to the metal sheet, so that the metal sheet is formed into a metal molded piece on the molding cavity.

In an embodiment of the present invention, a metal forming cooling zone is further included, the metal forming cooling zone includes a carrier plate, and the carrier plate is a cooling plate, and the molding die and the metal molding component are moved from the metal forming work area to the metal through the material moving device. When forming the cooling zone, the forming die and the metal molded part will be placed on the carrier plate.

In an embodiment of the present invention, a metal forming cooling zone is further included, and the metal forming cooling zone includes a plurality of cooling nozzles. When the molding die and the metal molding are moved from the metal forming work area to the metal forming cooling zone through the material moving device, The cooling nozzles will respectively eject a cooling fluid or gas to a portion of the metal forming member on the top side end of the forming mold.

In an embodiment of the present invention, the metal forming cooling zone further includes a carrier plate, and the carrier plate is a heat insulating plate. When the molding die and the metal molded component are moved from the metal forming work area to the metal forming cooling zone through the material moving device, the molding is performed. The mold and metal molded parts will be placed on the carrier plate.

In an embodiment of the present invention, when the molding die is heated to the first preset temperature by the first heating device and the second heating device, the materializing device moves the molding die from the molding die heating zone to the metal molding waiting zone.

In an embodiment of the present invention, wherein the mold is heated by the heater to a second predetermined temperature, the gas supply will supply high pressure gas into the sealed cavity of the sealing mold.

In an embodiment of the present invention, the first preset temperature is higher than the second preset temperature.

In an embodiment of the present invention, the inner surface of the molding cavity of the molding die includes at least one pattern layer.

In an embodiment of the present invention, the first heating device, the second heating device, and the heater include at least one electric heating tube and/or at least one high frequency heater.

In an embodiment of the present invention, the high pressure gas is an air, an inert gas Or a gas with inertness.

100‧‧‧Metal sheet forming system

11‧‧‧Mold

12‧‧‧Metal sheet

121‧‧‧Metal molded parts

13‧‧‧ Sealing Die

131‧‧‧ sealed cavity

132‧‧‧ input hole

15‧‧‧Molding

151‧‧‧ molding cavity

152‧‧‧pattern layer

17‧‧‧ gas supply

170‧‧‧High pressure gas

171‧‧‧ gas pipeline

19‧‧‧heat pipe

200‧‧‧Metal sheet forming system

21‧‧‧Mold

22‧‧‧Metal sheet

221‧‧‧Metal molded parts

2210‧‧‧Partial metal parts

23‧‧‧ Sealing Die

231‧‧‧ sealed cavity

232‧‧‧Input hole

25‧‧‧Molding

251‧‧‧ molding cavity

252‧‧‧pattern layer

27‧‧‧ gas supply

270‧‧‧High pressure gas

271‧‧‧ gas pipeline

29‧‧‧heater

31‧‧‧Forming mold heating zone

311‧‧‧First heating unit

313‧‧‧Second heating device

33‧‧‧Metal forming waiting area

35‧‧‧Metal forming work area

37‧‧‧Metal forming cooling zone

371‧‧‧Loading board

372‧‧‧Condensation tube

373‧‧‧Loading board

374‧‧‧heat pipe

375‧‧‧Cooling nozzle

376‧‧‧Cooling fluid

50‧‧‧Transfer device

Figure 1: Schematic diagram of the system structure of a conventional sheet metal forming system.

Figure 2: Schematic diagram of the system operating area of an embodiment of the present sheet metal forming system.

Fig. 3 is a schematic view showing the structure of an embodiment of the heating zone of the present molding die.

Figure 4: Schematic diagram of the regional structure of an embodiment of the present metal forming waiting zone.

Figure 5: Schematic diagram of the regional structure of an embodiment of the present metal forming work area.

Fig. 6 is a schematic view showing the structure of a region of an embodiment of the present metal forming cooling zone.

Fig. 7 is a schematic view showing the structure of a region of another embodiment of the present metal forming cooling zone.

Please refer to FIG. 2, which is a schematic diagram of the system operation area of an embodiment of the original metal sheet forming system, and FIG. 3, FIG. 4 and FIG. 5 respectively show the heating zone, the metal forming waiting area and the metal forming work of the forming mold. A schematic diagram of the regional structure of an embodiment of the zone. As shown in FIGS. 2, 3, 4, and 5, the sheet metal forming system 200 includes a molding die heating zone 31, a metal forming waiting zone 33, and a metal forming work zone 35. In the present creation, when the molding die heating zone 31, the metal forming waiting zone 33 and the metal forming work zone 35 are operated, each zone 31, 33, 35 will be respectively moved into a molding die 25, and each molding die 25 is passed through a molding die 25 The transfer device 50 moves.

As shown in FIG. 3, a molding cavity 251 is formed on the inner side of the top end of the molding die 25. The inner surface of the molding cavity 251 is provided with a pattern layer 252, and the molding die 25 can be moved into the molding die heating zone 31 through the transfer device 50. The molding die heating zone 31 includes a first heating device 311. When the molding die 25 is moved into the molding die heating zone 31, it is placed on the first heating means 311. The first heating device 311 performs a preheating process on the bottom end of the molding die 25 to enable the molding die 25 to be preheated. Up to a first preset temperature. Moreover, when the molding die 25 is preheated by the first heating device 311, since the bottom end is directly heated by the first heating device 311, the temperature after the bottom end is heated will be higher than the top temperature and the inside of the molding cavity 251. temperature. Therefore, in order to avoid unevenness in temperature after heating of the respective portions of the molding die 25, the artificial molding die heating zone 31 is further provided with a second heating device 313, and the second heating device 313 is placed at the top of the molding die 25. Above. When the first heating device 311 is heated at the bottom end of the molding die 25, the second heating device 313 is also heated at the top end of the molding die 25 so that the tip end of the molding die 25 and the inside of the molding cavity 251 can be simultaneously and bottom-ended. It is heated to the first preset temperature. In the present creation, the first heating device 311 and the second heating device 313 include at least one high-frequency heater and/or electric heating tube.

Next, as shown in FIG. 4, when the molding die 25 has been previously heated to the first predetermined temperature, the molding die 25 is moved to the metal molding waiting region 33 by the transfer device 50. When the molding die 25 is moved into the metal forming waiting region 33, a room temperature metal sheet 22 is placed on the top end of the molding die 25 through another transfer device 50. In the present creation, the metal sheet 22 may be selected from various metal flakes such as stainless steel, copper, magnesium alloy, titanium alloy, and the like. Then, the preheated molding die 25 will conduct heat to the metal sheet 22 so that the body of the metal sheet 22 can be in a high temperature state.

Continuing, as shown in FIG. 5, after a waiting time, for example, after the metal sheet 22 is formed into a metal molded piece in the metal forming work area 35 and removed from the metal forming work area 35, the metal sheet 22 and The forming die 25 is moved by the transfer device 50 from the metal forming waiting area 33 into the metal forming work area 35. The metal forming work area 35 includes a sealing mold 23. The inner side of the bottom end of the sealing mold 23 is provided with a sealing chamber 231 and at least one input hole 232. The sealing mold 23 will be combined with the forming mold 25 into a mold 21. When the mold 21 is in a mold clamping state, the metal sheet 22 is interposed between the sealing chamber 231 of the sealing mold 23 and the molding cavity 251 of the molding die 25. In addition, the sealing die 23 of the mold 21 will be surrounded by the periphery of the molding die 25 with at least one heater 29 including at least one high-frequency heater and/or electric heating tube. In the metal forming work area 35, the heater 29 is used to perform a heating process on the mold 21, and indirectly performs the heating action on the mold 21 on the metal sheet 22 interposed between the sealing mold 23 and the molding die 25. Heat treatment.

Moreover, when the mold 21 is heated by the heater 29 to a second predetermined temperature, the body of the metal sheet 22 will exhibit a softened state, and the gas supply 27 will supply a high pressure gas through a gas line 271 and the input hole 232. 270 to the sealing cavity 231 of the sealing die 23, applying a gas pressure to the heat-softened metal sheet 22, so that the metal sheet 22 is attached to the pattern layer 252 of the molding cavity 251 of the molding die 25 by the gas pressure, Thereby, it is molded into a metal molded piece 221. The high-pressure gas 270 supplied from the present gas supply unit 27 may be an inert gas such as a general gas, air, helium (He) or neon (Ne), or an inert gas such as nitrogen (N ₂ ).

The present metal sheet 22 is heated at a high temperature by the preheated molding die 25 at the metal forming waiting region 33. Thus, when the molten metal sheet 22 is moved from the metal forming waiting region 33 to the metal forming working region 35, the heater 29 only takes a short time to heat the mold 21, and the body of the metal sheet 22 can be softened immediately. Make the molding.

After the metal forming member 221 has been formed, the mold 21 is opened to a mold opening state, and the forming mold 25 and the metal forming member 221 are removed from the metal forming working area 35 through the transferring device 50 so that the next metal sheet 22 can continue to move in. The metal forming work area 35 is formed by molding.

Further, in a preferred embodiment of the present invention, the sealing die 23 of the metal forming work area 35 is always heated by the heater 29 to maintain a second predetermined temperature. Further, in order to move the molding die 25 to the metal forming work area 35, the temperature which is the same as or similar to that of the sealing die 23 can be quickly reached. In the present embodiment, the molding die 25 will be subjected to the molding die heating zone 31. A heating device 311 and a second heating device 313 are preheated to a higher temperature, such as a first predetermined temperature, which is higher than the second predetermined temperature. Thus, during the movement of the molding die 25 from the molding die heating zone 31 to the metal forming work zone 35, the molding die 25 is reduced from the higher first preset temperature to approximately the same as the heat absorption of the metal sheet 22 and the atmosphere. The second, second preset temperature is low to shorten the heating time of the heater 29 for the molding die 25 during the metal forming operation.

Therefore, the present metal sheet 22 and the molding die 25 are heated in advance before entering the metal forming work area 35, so that the metal sheet 22 and the molding die 25 reach the temperature required for the air pressure forming as early as possible to shorten the production of the metal molded part 221 time.

Following the above, after the molding die 25 and the metal molding 221 are removed from the metal molding work area 35 through the transfer device 50, the molding die 25 and the metal molding member 221 in a high temperature state can be placed in an atmosphere to be cooled. After the molding die 25 and the metal molding member 221 are cooled, they are molded. The mold 25 takes out the metal molded part 221. Alternatively, as shown in FIG. 2, the present pneumatic forming system 200 is further provided with a metal forming cooling zone 37, and the metal forming member 221 can be cooled in the metal forming cooling zone 37.

In an embodiment of the present invention, as shown in FIG. 6, the metal forming cooling zone 37 includes a carrier plate 371 which is a cooling plate and includes a plurality of condenser tubes 372. When the molding die 25 and the metal molding 221 are moved to the metal molding cooling zone 37 through the transfer device 50, the molding die 25 and the metal molding 221 are placed on the carrier plate 371. The molding fluid 25 and the metal molding 221 are quickly cooled by the condensed fluid flowing in the condenser 372 of the carrier plate 371, so that the metal molding 221 can be released from the molding die 25 to be taken out from the molding die 25 as soon as possible.

Alternatively, in still another embodiment of the present invention, as shown in FIG. 7, the metal forming cooling zone 37 includes a plurality of cooling nozzles 375. When the molding die 25 and the metal molding 221 are moved to the metal molding cooling zone 37 through the transfer device 50, the cooling nozzles 375 respectively eject a cooling fluid 376 to a portion of the metal molding 2210 on the top side end of the molding die 25 (e.g., cooling) The liquid or cooling gas) allows a portion of the metal molded part 2210 to be quickly cooled and released from the molding die 25. Thereafter, the demolded part of the metal molding 2210 is gripped by the jig to take the metal molding 221 out of the molding die 25.

In addition, a heat-insulating carrier plate 373 may be further disposed in the metal forming cooling zone 37 of the embodiment of FIG. 7, and the interior of the carrier plate 373 includes a plurality of heating tubes 374. When the molding die 25 and the metal molding 221 are moved to the metal molding cooling zone 37 through the transfer device 50, the molding die 25 and the metal molding 221 will be placed on the carrier plate 373 for heating and heat preservation. Thus, the top side end of the molding die 25 will be maintained at a high temperature by the heating of the carrier plate 373, and the portion of the metal molding 2210 will be cooled by the cooling action of the cooling fluid 376. Therefore, there will be a large temperature difference between the portion of the metal molding 2210 and the top side of the molding die 25, and this large temperature difference causes the metal molding 2210 to be more quickly separated from the top side of the molding die 25. And the result of demoulding. Thereafter, the demolded part of the metal molding 2210 is gripped by the jig to take the metal molding 221 out of the molding die 25. According to this implementation, the metal molded part 221 can achieve the purpose of demolding more quickly.

In summary, the present metal sheet 22 and the molding die 25 can be heated in advance before entering the metal forming work area 35 to be added in a short time when entering the metal forming work area 35. The hot forming of the metal forming part 221 is achieved by the heat reaching the working temperature required for the air pressure forming, and the metal forming part 221 can be quickly cooled in the metal forming cooling zone 37 to be demolded to the forming die 25 as soon as possible, thereby effectively shortening the metal forming. The production time of the piece 221 increases the number of production of the metal molded piece 221.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the shape, structure, characteristics and spirit described in the scope of the patent application are equally changed. Modifications shall be included in the scope of the patent application of this creation.

200‧‧‧Metal sheet forming system

31‧‧‧Forming mold heating zone

33‧‧‧Metal forming

35‧‧‧Metal forming work area

37‧‧‧Metal forming cooling zone

Claims (10)

A sheet metal forming system comprises: a plurality of material moving devices; a plurality of forming molds, each of which has a molding cavity on the inner side of the top end and is respectively moved by the material moving device; and a molding die heating zone including a first heating a device and a second heating device, when the molding die is moved to the metal heating zone through the material moving device, the first heating device is placed under the bottom end of the molding die and the second heating device is placed at the top of the molding die Above, the first heating device and the second heating device preheat the molding die; a metal forming waiting region, the heated molding die is moved from the molding die heating region to the metal molding waiting region through the material moving device, and a metal plate is placed Placed on top of the heated molding die; a metal forming work area including a sealing die, a sealing cavity and at least one input hole on the inner side of the bottom end of the sealing die, the heated molding die and the top end thereof The metal sheet is moved from the metal forming waiting area to the metal forming working area through the material moving device, and the sealing mold and the forming mold are combined into a mold, and when the sealing mold and the forming mold are When the mold is closed, the metal sheet is sandwiched between the sealing cavity of the sealing mold and the molding cavity of the molding die, wherein at least one heater is disposed around the periphery of the mold to heat the mold; and a gas supply is passed through a gas. The pipeline is connected to the input hole of the sealing mold, wherein the gas supply device provides a high-pressure gas, and the high-pressure gas is input to the sealing chamber through the gas pipeline and the input hole to apply a gas pressure to the metal sheet, so that the metal sheet is formed into a molding cavity. Metal molded parts. The sheet metal forming system according to claim 1, further comprising a metal forming cooling zone, the metal forming cooling zone comprising a carrier plate, the carrier plate being a cooling plate, and the molding die and the metal forming component When the material moving working area is moved from the metal forming work area to the metal forming cooling area, the forming mold and the metal forming part are placed on the carrying board on. The sheet metal forming system of claim 1, further comprising a metal forming cooling zone, wherein the metal forming cooling zone comprises a plurality of cooling nozzles, wherein the molding die and the metal molding member pass through the material moving device When the metal forming work area is moved to the metal forming cooling zone, the cooling nozzles will eject a cooling fluid or gas to a portion of the metal forming member at the top side end of the forming mold, respectively. The sheet metal forming system of claim 3, wherein the metal forming cooling zone further comprises a carrier plate, wherein the carrier plate is a heat insulating plate, and the molding die and the metal molding member pass through the material moving device. When the metal forming work area is moved to the metal forming cooling zone, the forming die and the metal forming member are placed on the carrier plate. The sheet metal forming system of claim 1, wherein the forming device molds the forming die when the forming die is heated by the first heating device and the second heating device to a first predetermined temperature. Moving from the molding die heating zone to the metal forming waiting zone. The sheet metal forming system of claim 5, wherein when the mold is heated by the heater to a second predetermined temperature, the gas supply unit supplies the high pressure gas to the sealing cavity of the sealing mold. . The sheet metal forming system of claim 6, wherein the first preset temperature is higher than the second preset temperature. The sheet metal forming system according to claim 1, wherein the inner surface of the molding cavity of the molding die comprises at least one pattern layer. The sheet metal forming system of claim 1, wherein the first heating device, the second heating device, and the heater comprise at least one electric heating tube and/or at least one high frequency heater. The sheet metal forming system of claim 1, wherein the high pressure gas is an air, an inert gas or an inert gas.