CN114029411B - Multi-station thermoforming system and method - Google Patents
Multi-station thermoforming system and method Download PDFInfo
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- CN114029411B CN114029411B CN202111216945.3A CN202111216945A CN114029411B CN 114029411 B CN114029411 B CN 114029411B CN 202111216945 A CN202111216945 A CN 202111216945A CN 114029411 B CN114029411 B CN 114029411B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003856 thermoforming Methods 0.000 title claims description 16
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a multi-station forming system and a multi-station forming method. The system comprises: the device comprises forming equipment, a preheating furnace, a cooling furnace, a trolley track, a first upper platform, a second upper platform, a first lower platform and a second lower platform, wherein the first upper platform and the second upper platform are arranged in the forming equipment and can move up and down, the first lower platform and the second lower platform can move left and right along the trolley track, an upper die is placed on the first upper platform and the second upper platform, and a lower die is placed on the first lower platform and the second lower platform; the preheating furnace is used for preheating the lower die; a forming apparatus configured to perform a press heating process on the upper mold and the lower mold to obtain a high-temperature forming apparatus; a first lower stage and the second lower stage configured to move the mold and the high temperature formed part to a preheating furnace and a cooling furnace; and a cooling furnace configured to cool the lower mold and the high-temperature molded part. The invention can reduce the times of temperature rise and fall of the equipment and improve the production efficiency.
Description
Technical Field
The invention relates to the technical field of thermal state high temperature forming, in particular to a multi-station thermal forming system and method.
Background
At present, when metal is formed at high temperature, high-temperature forming equipment with a single working position is generally used for working, a preheating furnace and a cooling furnace are not arranged, so that in the metal high-temperature forming work, a die is required to be heated from room temperature to forming temperature, after the work is finished, the die is required to be cooled to room temperature, other dies are required to be replaced, and then the die is heated to the forming temperature for forming, the production cycle of parts is repeatedly prolonged, and meanwhile, the utilization rate of a high-temperature forming machine is greatly reduced, so that the production efficiency is seriously influenced; and the part needing to be preformed cannot be directly produced by single-station equipment, so that the temperature rising and falling efficiency is low and the production period is long during working, and the problem of high-temperature forming production efficiency is particularly important.
Disclosure of Invention
The invention solves the technical problems that: overcomes the defects of the prior art and provides a multi-station thermoforming system and a multi-station thermoforming method.
The technical scheme of the invention is as follows:
in a first aspect, embodiments of the present invention provide a multi-station thermoforming system, the system comprising: the forming device, the preheating furnace, the cooling furnace, the trolley track, the first upper platform, the second upper platform, the first lower platform and the second lower platform, wherein the first upper platform and the second upper platform are arranged in the forming device and can move up and down, the first lower platform and the second lower platform can move left and right along the trolley track,
the first upper platform and the second upper platform are used for placing an upper die, and the first lower platform and the second lower platform are used for placing a lower die;
the preheating furnace is used for preheating the lower die;
the forming equipment is configured to perform pressurizing and heating treatment on the upper die and the lower die to obtain high-temperature forming equipment;
the first lower platform and the second lower platform are configured to move a mold and a high-temperature formed part to a preheating furnace and a cooling furnace;
the cooling furnace is configured to cool the lower die and the high-temperature molded part.
Optionally, 8 guide posts are pre-installed in the forming device, and the first upper platform and the second upper platform move up and down along the guide posts.
Optionally, the forming device is provided with liftable doors at two sides in the horizontal direction, and when the forming device is in a working state, the liftable doors are in a closed state.
Optionally, heating means and pressurizing means are provided in the forming apparatus,
the heating device is configured to heat a mold located in the forming equipment;
the pressurizing device is configured to apply pressure to a mold located within the forming apparatus.
Optionally, the dimensions of the first upper platform, the second upper platform, the first lower platform and the second lower platform are all 2m×3m.
In a second aspect, an embodiment of the present invention provides a multi-station thermoforming method, applied to the forming system of any one of the above, the method including the steps of:
sequentially fixing a first upper die and a second upper die on a first upper platform and a second upper platform, and preheating the first upper die and the second upper die through forming equipment;
sequentially placing a first lower die and a second lower die on a first lower platform and a second lower platform;
controlling the first lower platform and the second lower platform to move into the preheating furnace through the track so as to preheat the first lower die and the second lower die;
after the first die is preheated, controlling the first lower platform to move to the position below the first upper platform in the forming equipment through the trolley track, and placing the first part to be processed into the first lower die on the first lower platform;
controlling the first upper platform to move downwards to the position above the first lower platform through the guide post, pressing and closing a first lower die on the first lower platform to obtain a first forming die, and applying the forming temperature and pressure of the part to the first forming die through a heating system and a pressurizing system in forming equipment until the dwell time is reached;
the first upper platform is controlled to move upwards through the guide post, the part is taken out and cooled, and the next part to be processed is placed in a first lower die;
after all the parts produced by the first mould are produced, moving the first lower platform into a cooling furnace through a track to cool the first lower mould;
at the moment, the second lower platform is controlled to move to the position below the second upper platform in the forming equipment through the trolley track, and a second part to be processed is placed in a second lower die on the second lower platform;
controlling the second upper platform to move downwards to the position above the second lower platform through the guide post, so that a second lower die on the second lower platform is pressed and clamped to obtain a second forming die;
applying the temperature and pressure of part forming to the second forming die through a heating system and a pressurizing system in the forming equipment until the dwell time is reached;
controlling the second upper platform to move upwards through the guide post, taking out the part for cooling, and placing the next part to be processed into a second lower die;
and after all the parts produced by the second die are produced, controlling the second lower platform to move into the cooling furnace through the track to cool the second lower die.
Compared with the prior art, the embodiment of the invention has the advantages that:
in the embodiment of the invention, the preheating furnace can continuously keep the same temperature, the equipment temperature rise and drop times can be obviously reduced, the cooling furnace can rapidly cool the die temperature, the production efficiency is improved, the requirement on equipment is reduced, the processing cost is greatly saved, the processing period is reduced, the parts needing to be preformed can be directly produced, the parts are directly subjected to thermal correction after the preforming, the secondary temperature rise of the parts is not needed, the equipment is saved, the production cost is reduced, the working strength of operators is reduced, and the mass production of the parts needing to be secondarily formed is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a multi-station thermoforming system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another multi-station thermoforming system according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of a multi-station thermoforming method according to an embodiment of the present invention.
Detailed Description
Example 1
Referring to fig. 1, a schematic structural diagram of a multi-station thermoforming system according to an embodiment of the present invention is shown, and as shown in fig. 1 and fig. 2, the system may include: the device consists of forming equipment 1, a first upper platform 2, a second upper platform 3, a first lower platform 4, a second lower platform 5, a preheating furnace 6, a cooling furnace 7 and a trolley track 8. 8 guide posts exist in the forming equipment, the two upper platforms can move up and down in the equipment along the guide posts of the respective platforms, the first upper platform and the second upper platform can move integrally or independently, and the integral movement is convenient for the thermoforming or superplastic forming production of oversized parts. The forming equipment comprises a pressurizing system and a heating system, and the left side and the right side of the forming equipment are liftable doors. The right side surface of the preheating furnace is provided with a lifting door; the left side surface of the cooling furnace is provided with a lifting door.
The lifting door is convenient for the platform to convey the mould to the preheating furnace and the cooling furnace along the trolley track. Heating pipes are arranged on the inner walls of the other three sides of the preheating furnace, so that the rapid temperature rise of the die is facilitated. The inner walls of the other three sides of the cooling furnace are provided with water cooling pipelines, and water is introduced into the water cooling pipelines for cooling, so that the rapid cooling of the die is facilitated; the preheating furnace, the forming equipment and the cooling furnace are sequentially fixed on the trolley track from left to right; two lower platforms can be stored in the preheating furnace and the cooling furnace at the same time; the two lower platforms are provided with independent heating systems and can move along the track, and can move independently or simultaneously, so that the mold and the workpiece can be transported to a designated position conveniently.
The workflow of the thermoforming may be:
a first upper die and a second upper die are sequentially fixed on a first upper platform and a second upper platform and are preheated through first forming equipment, a first lower die and a second lower die are sequentially placed on the first lower platform and the second lower platform, and the first lower platform and the second lower platform move into a preheating furnace through rails to preheat the first die and the second die; after the first die is preheated, the first lower platform is moved to the lower part of the first upper platform in the forming equipment through the trolley track, the first part to be processed is placed in the first lower die on the first lower platform, the first upper platform is moved downwards to the upper part of the first lower platform through the guide pillar, the first lower die on the first lower platform is pressed and clamped, the forming temperature and pressure of the part are applied to the first forming die through the heating system and the pressurizing system in the forming equipment, the first upper platform moves upwards through the guide pillar when the dwell time is reached, the part is taken out and cooled, the next part to be processed is placed in the first lower die, and the mass production of the part can be realized repeatedly. After all the parts produced by the first mould are produced, moving the first lower platform into a cooling furnace through a track to cool the first lower mould; at this time, the second lower platform moves to the lower part of the second upper platform in the forming equipment through the trolley track, the second part to be processed is placed in the second lower die on the second lower platform, the second upper platform moves downwards to the upper part of the second lower platform through the guide pillar, the second lower die on the second lower platform is pressed and clamped, the temperature and the pressure for part forming are applied to the second forming die through the heating system and the pressurizing system in the forming equipment, the second upper platform moves upwards through the guide pillar when the dwell time is reached, the part is taken out and cooled, the next part to be processed is placed in the second lower die, and the mass production of the part can be realized repeatedly. And after all the parts produced by the second die are produced, moving the second lower platform into a cooling furnace through a rail to cool the second lower die. And repeatedly carrying out the hot forming of the batch production parts.
The equipment can also be used for processing parts to be preformed, and the parts can be directly secondarily formed after being preformed; and the parts to be preformed are rapidly produced by adopting the mode of the same lower die and different upper dies. And fixing the pre-forming upper die on a first upper platform, and fixing the secondary forming upper die on a second upper platform for preheating. And placing the preformed lower die on a first lower platform, and moving the first lower platform into a preheating furnace through a rail to preheat the die. After the preheating of the mould is finished, the first lower platform is moved to the position below the first upper platform in the forming equipment through the trolley track, the first upper platform is moved downwards to the position above the first lower platform through the guide pillar, so that the forming mould above the first lower platform is pressed and clamped, the forming mould is subjected to part forming temperature and pressure through a heating system and a pressurizing system in the forming equipment, after the preforming is finished, the first lower platform is moved to the position below the second upper platform, the second upper platform is moved downwards to the position above the first lower platform through the guide pillar, so that the mould above the first lower platform is pressed and clamped, the part forming temperature and pressure are applied to the mould through the heating system and the pressurizing system in the forming equipment, and after the part production is finished, the first lower platform is moved to a cooling furnace for cooling. The operation flow is repeated, so that the part to be preformed can be directly produced.
The device can also be used for carrying out the hot forming or superplastic forming processing of oversized parts, the two lower platforms are connected by using the connector, the operation control platform sets the upper platform and the lower platform to move simultaneously, the used dies are placed on the two lower platforms, and the two lower platforms are moved into the preheating furnace through the rails to preheat the dies. After the preheating of the mould is completed, the lower platform is moved into forming equipment through a trolley track, the two upper platforms are simultaneously moved downwards through guide posts, so that the mould on the lower platform is pressed and closed, the heating system and the pressurizing system in the forming equipment are used for applying the temperature and the pressure for forming the part to the mould, when the dwell time is reached, the part production is completed, the upper platform is moved upwards through the guide posts, and the two lower platforms are moved into a cooling furnace through the tracks for cooling. The operation flow is repeated, so that the thermal forming or superplastic forming of the oversized part can be directly produced.
The sizes of the upper platform and the lower platform are as follows: 2 m.times.3m.
The temperature range in the furnace of the forming equipment is between normal temperature and 1000 ℃; the control system is a computer capable of being controlled by touch; has the functions of temperature setting, temperature rising rate setting and heat preservation. The two side face liftable doors have automatic and manual switch functions.
The temperature range in the preheating furnace is between normal temperature and 1000 ℃; the control system is a computer capable of being controlled by touch; has the functions of furnace temperature setting, temperature rising rate setting and heat preservation. The right side liftable door has an automatic and manual switch function.
The cooling furnace equipment can cool the die below 950 ℃ to normal temperature. The control system is a computer capable of being controlled in a touch way and has the functions of setting the cooling rate and preserving heat. The left side liftable door has automatic and manual switch function.
Example two
Referring to fig. 3, a step flow chart of a multi-station thermoforming method according to an embodiment of the present invention is shown, and as shown in fig. 3, the method may include the following steps:
step 301: sequentially fixing a first upper die and a second upper die on a first upper platform and a second upper platform, and preheating the first upper die and the second upper die through forming equipment;
step 302: sequentially placing a first lower die and a second lower die on a first lower platform and a second lower platform;
step 303: controlling the first lower platform and the second lower platform to move into the preheating furnace through the track so as to preheat the first lower die and the second lower die;
step 304: after the first die is preheated, controlling the first lower platform to move to the position below the first upper platform in the forming equipment through the trolley track, and placing the first part to be processed into the first lower die on the first lower platform;
step 305: controlling the first upper platform to move downwards to the position above the first lower platform through the guide post, pressing and closing a first lower die on the first lower platform to obtain a first forming die, and applying the forming temperature and pressure of the part to the first forming die through a heating system and a pressurizing system in forming equipment until the dwell time is reached;
step 306: the first upper platform is controlled to move upwards through the guide post, the part is taken out and cooled, and the next part to be processed is placed in a first lower die;
step 307: after all the parts produced by the first mould are produced, moving the first lower platform into a cooling furnace through a track to cool the first lower mould;
step 308: at the moment, the second lower platform is controlled to move to the position below the second upper platform in the forming equipment through the trolley track, and a second part to be processed is placed in a second lower die on the second lower platform;
step 309: controlling the second upper platform to move downwards to the position above the second lower platform through the guide post, so that a second lower die on the second lower platform is pressed and clamped to obtain a second forming die;
step 310: applying the temperature and pressure of part forming to the second forming die through a heating system and a pressurizing system in the forming equipment until the dwell time is reached;
step 311: controlling the second upper platform to move upwards through the guide post, taking out the part for cooling, and placing the next part to be processed into a second lower die;
step 312: and after all the parts produced by the second die are produced, controlling the second lower platform to move into the cooling furnace through the track to cool the second lower die.
In the embodiment of the invention, a first upper die and a second upper die are sequentially fixed on a first upper platform and a second upper platform and are preheated by a first forming device, a first lower die and a second lower die are sequentially arranged on the first lower platform and the second lower platform, and the first lower platform and the second lower platform move into a preheating furnace through rails to preheat the first die and the second die; after the first die is preheated, the first lower platform is moved to the lower part of the first upper platform in the forming equipment through the trolley track, the first part to be processed is placed in the first lower die on the first lower platform, the first upper platform is moved downwards to the upper part of the first lower platform through the guide pillar, the first lower die on the first lower platform is pressed and clamped, the forming temperature and pressure of the part are applied to the first forming die through the heating system and the pressurizing system in the forming equipment, the first upper platform moves upwards through the guide pillar when the dwell time is reached, the part is taken out and cooled, the next part to be processed is placed in the first lower die, and the mass production of the part can be realized repeatedly.
After all the parts produced by the first mould are produced, moving the first lower platform into a cooling furnace through a track to cool the first lower mould; at this time, the second lower platform moves to the lower part of the second upper platform in the forming equipment through the trolley track, the second part to be processed is placed in the second lower die on the second lower platform, the second upper platform moves downwards to the upper part of the second lower platform through the guide pillar, the second lower die on the second lower platform is pressed and clamped, the temperature and the pressure for part forming are applied to the second forming die through the heating system and the pressurizing system in the forming equipment, the second upper platform moves upwards through the guide pillar when the dwell time is reached, the part is taken out and cooled, the next part to be processed is placed in the second lower die, and the mass production of the part can be realized repeatedly.
And after all the parts produced by the second die are produced, moving the second lower platform into a cooling furnace through a rail to cool the second lower die. And repeatedly carrying out the hot forming of the batch production parts.
The specific embodiments described herein will be described in order to provide a more thorough understanding of the present application to those skilled in the art, and are not intended to limit the present application in any way. Accordingly, it will be understood by those skilled in the art that the present application is still modified or equivalently substituted; all technical solutions and modifications thereof that do not depart from the spirit and technical essence of the present application are intended to be included in the protection scope of the present application.
What is not described in detail in the present specification is a well known technology to those skilled in the art.
Claims (4)
1. A multi-station thermoforming system, the thermoforming system comprising: the forming device, the preheating furnace, the cooling furnace, the trolley track, the first upper platform, the second upper platform, the first lower platform and the second lower platform, wherein the first upper platform and the second upper platform are arranged in the forming device and can move up and down, the first lower platform and the second lower platform can move left and right along the trolley track,
the first upper platform and the second upper platform are used for placing an upper die, and the first lower platform and the second lower platform are used for placing a lower die;
the preheating furnace is used for preheating the lower die;
the forming equipment is configured to perform pressurizing and heating treatment on the upper die and the lower die to obtain high-temperature forming equipment;
the first lower platform and the second lower platform are configured to move a mold and a high-temperature formed part to a preheating furnace and a cooling furnace;
the cooling furnace is configured to cool the lower die and the high-temperature forming part;
the two sides of the forming equipment in the horizontal direction are provided with lifting doors, and when the forming equipment is in a working state, the lifting doors are in a closing state; the right side surface of the preheating furnace is provided with a lifting door; the left side surface of the cooling furnace is provided with a lifting door;
a multi-station thermoforming method comprising the steps of:
sequentially fixing a first upper die and a second upper die on a first upper platform and a second upper platform, and preheating the first upper die and the second upper die through forming equipment;
sequentially placing a first lower die and a second lower die on a first lower platform and a second lower platform;
controlling the first lower platform and the second lower platform to move into the preheating furnace through the track so as to preheat the first lower die and the second lower die;
after the first die is preheated, controlling the first lower platform to move to the position below the first upper platform in the forming equipment through the trolley track, and placing the first part to be processed into the first lower die on the first lower platform;
controlling the first upper platform to move downwards to the position above the first lower platform through the guide post, pressing and closing a first lower die on the first lower platform to obtain a first forming die, and applying the forming temperature and pressure of the part to the first forming die through a heating system and a pressurizing system in forming equipment until the dwell time is reached;
the first upper platform is controlled to move upwards through the guide post, the part is taken out and cooled, and the next part to be processed is placed in a first lower die;
after all the parts produced by the first mould are produced, moving the first lower platform into a cooling furnace through a track to cool the first lower mould;
at the moment, the second lower platform is controlled to move to the position below the second upper platform in the forming equipment through the trolley track, and a second part to be processed is placed in a second lower die on the second lower platform;
controlling the second upper platform to move downwards to the position above the second lower platform through the guide post, so that a second lower die on the second lower platform is pressed and clamped to obtain a second forming die;
applying the temperature and pressure of part forming to the second forming die through a heating system and a pressurizing system in the forming equipment until the dwell time is reached;
controlling the second upper platform to move upwards through the guide post, taking out the part for cooling, and placing the next part to be processed into a second lower die;
and after all the parts produced by the second die are produced, controlling the second lower platform to move into the cooling furnace through the track to cool the second lower die.
2. The system of claim 1, wherein 8 guide posts are pre-installed within the forming apparatus, the first upper platform and the second upper platform moving up and down along the guide posts.
3. A system according to claim 1, wherein heating means and pressurizing means are provided in the forming apparatus,
the heating device is configured to heat a mold located in the forming equipment;
the pressurizing device is configured to apply pressure to a mold located within the forming apparatus.
4. The system of claim 1, wherein the first upper platform, the second upper platform, the first lower platform, and the second lower platform are each 2m x 3m in size.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111216945.3A CN114029411B (en) | 2021-10-19 | 2021-10-19 | Multi-station thermoforming system and method |
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| CN202111216945.3A CN114029411B (en) | 2021-10-19 | 2021-10-19 | Multi-station thermoforming system and method |
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| CN114029411A CN114029411A (en) | 2022-02-11 |
| CN114029411B true CN114029411B (en) | 2024-04-05 |
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| EP2233593A2 (en) * | 2009-03-27 | 2010-09-29 | ThyssenKrupp Umformtechnik GmbH | Method and device for thermal recasting of pressure-hardened casting components made of sheet metal |
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| CN207014643U (en) * | 2017-07-20 | 2018-02-16 | 长春富维安道拓汽车饰件系统有限公司 | A kind of slush moulding production line for improving temperature compatibility |
| KR20180082263A (en) * | 2017-01-10 | 2018-07-18 | 현대위아 주식회사 | Hot forming press apparatus and controlling method thereof |
| CN209552277U (en) * | 2018-12-28 | 2019-10-29 | 永豪光电（中国）有限公司 | The aspherical molding machine of multistation hot pressing |
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2021
- 2021-10-19 CN CN202111216945.3A patent/CN114029411B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233593A2 (en) * | 2009-03-27 | 2010-09-29 | ThyssenKrupp Umformtechnik GmbH | Method and device for thermal recasting of pressure-hardened casting components made of sheet metal |
| CN106626470A (en) * | 2015-10-28 | 2017-05-10 | 上海宝钢高新技术零部件有限公司 | Method and device for rapid shaping with one press machine and multiple dies |
| CN205893065U (en) * | 2016-08-02 | 2017-01-18 | 蓝思科技（长沙）有限公司 | Hot bender of transmission type |
| KR20180082263A (en) * | 2017-01-10 | 2018-07-18 | 현대위아 주식회사 | Hot forming press apparatus and controlling method thereof |
| CN207014643U (en) * | 2017-07-20 | 2018-02-16 | 长春富维安道拓汽车饰件系统有限公司 | A kind of slush moulding production line for improving temperature compatibility |
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| CN209552277U (en) * | 2018-12-28 | 2019-10-29 | 永豪光电（中国）有限公司 | The aspherical molding machine of multistation hot pressing |
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|---|---|
| CN114029411A (en) | 2022-02-11 |
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