WO2020082493A1

WO2020082493A1 - Multi-mold hot-bending forming apparatus

Info

Publication number: WO2020082493A1
Application number: PCT/CN2018/117682
Authority: WO
Inventors: 胡鹏; 张占永; 闫秀涛
Original assignee: 东旭科技集团有限公司; 东旭集团有限公司
Priority date: 2018-10-25
Filing date: 2018-11-27
Publication date: 2020-04-30
Also published as: CN109279764A; TW202023974A; TWI708744B

Abstract

Disclosed is multi-mold hot-bending forming apparatus, comprising a feeding device, a heating device, a forming device, an annealing device and a discharging device, sequentially connected in a sealed manner, wherein the feeding device comprises a feeding isolation compartment and a pushing unit, the feeding isolation compartment is formed therein with a distribution channel extending in a distribution direction perpendicular to the pushing direction of the pushing unit; the distribution channel has multiple mold positioning positions arranged in the distribution direction at intervals, a heating channel has multiple corresponding heating positions therein, and a forming channel has multiple corresponding forming positions therein; in the pushing direction, the mold positioning positions, the heating positions and the forming positions can be in communication with one another and in communication with an annealing channel and a discharging channel; and the pushing unit is configured for pushing molds arranged at the mold positioning positions to the corresponding heating positions. The multi-mold hot-bending forming apparatus can improve the production efficiency in order to achieve the purpose of improving the capacity of a single apparatus.

Description

Multi-die hot bending forming equipment

Technical field

The invention relates to the technical field of glass processing, in particular to a multi-mold hot bending forming device.

Background technique

Due to the development of OLED display technology, as well as the high value of curved glass and the advantage of no shielding of signals, curved glass will become the mainstream cover plate product in various display fields. Such as smart phones, smart watches, tablet computers, wearable smart products, dashboards, etc., have clearly guided the development direction of 3D curved glass. 3D curved glass is light and thin, transparent and clean, anti-fingerprint, anti-glare, hard, scratch-resistant, etc., and wireless charging function, solve the lack of antenna layout space and enhance the receiving function, making the product more beautiful and excellent. For example, the existing commonly used mobile phone 3D curved glass substrate molding method steps are: ① At room temperature and in an air environment, manually place the 2D flat glass substrate into the molding mold; ② Put the glass-loaded molding mold into a sealed, filled with nitrogen Deoxygenation in the isolated room; ③ Forming 3D curved glass substrate by preheating, hot bending and slow cooling step by step in the molding room; ④ Then cooling down to room temperature; ⑤ Manually dividing the mold at room temperature and taking out the molded 3D curved glass substrate For the next cycle.

However, due to the difficulty of processing 3D curved glass and the complicated process, especially the hot bending forming process, it is a key link in the overall yield. However, the existing hot bending equipment has low automation level, low production efficiency, high energy consumption and other deficiencies, so that there is a lot of room for improvement in curved glass hot bending equipment.

Therefore, it is desirable to have a device that can overcome or at least alleviate the above-mentioned drawbacks of the prior art.

Summary of the invention

The purpose of the present invention is to overcome the problems in the prior art, and to provide a multi-mold hot-bending forming device, which can improve production efficiency and achieve the purpose of increasing the capacity of a single device.

In order to achieve the above object, the present invention provides a multi-mold hot bending forming equipment, including a feed device that is sequentially sealed and connected, a heating device with a heating channel, a forming device with a forming channel, an annealing device with an annealing channel, and a discharge device A discharge device of the channel, the feed device includes a feed isolation bin and a push unit, and a feed channel extending along a cloth direction perpendicular to the push direction of the push unit is formed in the feed isolation bin , The distribution channel has a plurality of mold positioning positions spaced along the distribution direction, the heating channel has corresponding multiple heating positions, and the molding channel has corresponding multiple molding positions, along the Pushing direction, each mold positioning position, heating position, molding position can communicate with each other and can communicate with the annealing channel and the discharge channel, the pushing unit is configured to push the mold arranged at the mold positioning position into To the corresponding heating position in the heating channel.

Through the above technical solution, since the feed isolation bin is formed with a cloth channel extending along the cloth direction perpendicular to the pushing direction of the push unit, and the cloth channel has a plurality of mold positioning positions arranged at intervals along the cloth direction, There are corresponding multiple heating positions in the heating channel, and corresponding multiple forming positions in the forming channel. At the same time, the positioning positions, heating positions, and forming positions of each mold can be communicated, so that the operator can The forming mold is positioned in the cloth channel along the cloth direction. After the oxygen removal treatment in the feed isolation bin, the pushing unit can push each forming mold along the pushing direction to the subsequent corresponding heating position and forming position The subsequent processing can be pushed into the annealing channel and finally discharged from the discharge channel. Therefore, the multi-mold hot-bending molding equipment can process multiple molding dies at a time to improve production efficiency and achieve a single device The purpose of capacity.

Further, the pushing unit is configured to simultaneously push each mold arranged at each mold positioning position to a corresponding heating position in the heating channel and be able to move along the way by the previous mold pushing the next mold The pushing direction pushes each mold simultaneously.

Further, the pushing unit includes a pushing plate and a feeding pushing cylinder, wherein the cylinder body of the feeding pushing cylinder is arranged outside the feeding isolation bin and the pushing rod extends into the distribution channel , The push plate is connected to the push rod and extends to each mold positioning position along the distribution channel.

In addition, a mold pushing transition plate is provided between the feeding device and the heating device; the feeding device includes a material receiving plate having a plurality of positioning positions of the mold, and the material receiving plate can be arranged to be placed In the feed isolation bin; when the receiving plate is placed in the feed isolation bin, the receiving plate and the mold pushing transition plate are flush;

and / or,

Along the pushing direction, the multi-die hot bending forming device is formed with a pushing material extending from the positioning position of the mold of the cloth channel and extending through the corresponding heating position, forming position and annealing position of the annealing channel Guide slot.

In addition, the feeding device includes a feeding drive device and an isolation hood located in the feed isolation bin, a ventilation interface is formed on the isolation hood, and the feeding drive device can drive the isolation hood in the sealing hood Switching between the isolated state of the mold positioning position and the non-isolated state away from the mold positioning position.

Further, the feed driving device drives the isolation cover to switch between the isolated state and the non-isolated state through a connection tube, and one end of the connection tube is connected to the vent port.

Furthermore, the connecting pipe includes an air inlet pipe and an air outlet pipe, and the ventilation interface includes an air inlet and an air outlet; the feed driving device is provided outside the feed isolation compartment and passes through the air inlet pipe and the air outlet pipe Connected with the isolation cover, the air inlet pipe and the air outlet pipe are slidingly matched with the top silo wall of the feed isolation silo, and are respectively connected with the air inlet and the exhaust port.

In addition, the heating device, the forming device and the annealing device respectively include a plurality of heating channels, forming channels and annealing channels, and are arranged along the pushing direction;

and / or,

The multi-mold hot bending forming apparatus includes a hot bending furnace including the heating device, the forming device, and the annealing device.

In addition, the discharge device includes a discharge isolation bin and a discharge push cylinder, wherein the cylinder body of the discharge push cylinder is disposed outside the discharge isolation bin, and the push rod of the discharge push cylinder extends It is inserted into the discharge channel and is connected with a mold discharge receiving plate; the discharge pushing cylinder can drive the mold discharge receiving plate into and out of the annealing channel.

Further, the discharge device includes a cooling plate with a cooling channel formed therein, the cooling plate is located in the discharge isolation bin and above the mold discharge receiving plate; the cooling plate passes through the water inlet pipe and discharge The water pipe is connected with the discharge driving device, and the water inlet pipe and the water outlet pipe communicate with the cooling channel and sealingly and slidingly fit with the top silo wall of the discharge isolation bin.

Other features and advantages of the present invention will be described in detail in the following specific embodiments.

BRIEF DESCRIPTION

1 is a schematic view of a front view of a heating device, a forming device and an annealing device of a multi-mold hot bending forming device integrated into a hot bending furnace according to a specific embodiment of the present invention;

2 is a schematic structural view of a feeding device of a multi-mold hot bending forming apparatus according to a specific embodiment of the present invention;

FIG. 3 is a schematic side view of the heating device in FIG. 1;

4 is a schematic view of the side structure of the molding device in FIG. 1;

FIG. 5 is a schematic structural diagram of a discharge device of a multi-die hot bending forming apparatus according to a specific embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

1- feeding device, 2- heating channel, 3- heating device, 4- forming channel, 5- forming device, 6-annealing channel, 7- annealing device, 8- discharging channel, 9- discharging device, 10- Feed isolation compartment, 11-feeding unit, 12-distribution channel, 13-pushing plate, 14-feeding pushing cylinder, 15-mold pushing transition plate, 16-loading plate, 17-feeding drive device, 18- Isolation hood, 19-intake pipe, 20-outlet pipe, 21-hot bending furnace, 22-outlet isolation bin, 23-outlet push cylinder, 24--die outgoing receiving plate, 25-cooling plate, 26-inlet pipe , 27-outlet pipe, 28-outlet driving device, 29-feed guide groove, 30-forming mold, 31-connecting plate, 32-connecting rod, 33-position detector, 34-end plate.

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Referring to the structure of an embodiment shown in FIG. 1, FIG. 2 and FIG. 5, the multi-mold hot bending forming apparatus includes a feed device 1 (refer to the structure shown in FIG. 2) which is sealed and connected in sequence, and a heating channel 2 Heating device 3, forming device 5 with forming channel 4, annealing device 7 with annealing channel 6 (see structure shown in FIG. 1), and discharge device 9 with discharge channel 8 (see structure shown in FIG. 5) The feeding device 1 includes a feeding isolation bin 10 and a pushing unit 11, and a feeding direction perpendicular to the pushing direction of the pushing unit 11 (left and right direction of the graphical interface in FIG. 2) is formed in the feeding isolation bin 10. (Left and right directions of the graphical interface in FIGS. 3 and 4) The extended cloth channel 12 has multiple mold positioning positions spaced along the cloth direction, and the heating channel 2 has corresponding multiple heating positions for molding There are corresponding multiple forming positions in the channel 4 (for example, six heating positions shown in FIG. 3, six forming positions shown in FIG. 4, and correspondingly, six mold positioning positions in the cloth passage 12), and Along the pushing direction, each mold positioning position, heating The position and the forming position can communicate with each other and with the annealing channel 6 and the discharge channel 8. The pushing unit 11 is configured to push the mold arranged at the mold positioning position into the corresponding heating position in the heating channel 2.

In this technical solution, since the feed isolation bin 10 is formed with a cloth channel 12 extending along the cloth direction perpendicular to the pushing direction of the pushing unit 11, and the cloth channel 12 has a plurality of spaced along the cloth direction The mold positioning position, the heating channel 2 has corresponding multiple heating positions, the molding channel 4 has corresponding multiple molding positions, and at the same time, each mold positioning position, heating position, molding position can be communicated, so that the operator can A plurality of forming molds 30 loaded with glass sheets are positioned in the cloth channel 12 along the cloth direction. After deoxidizing in the feed isolation bin 10, the pushing unit 11 can push each forming mold 30 along the push direction It enters into the subsequent corresponding heating position and forming position for subsequent processing, and can be pushed into the annealing channel 6 and finally discharged from the discharge channel 8. Therefore, the multi-mold hot bending forming device can perform multiple forming at once The processing of the mold significantly improves the equipment operation cycle, thereby improving the production efficiency of the equipment while achieving the purpose of increasing the capacity of a single equipment Glass molding quality and product yield.

It should be understood that, in the multi-die hot bending forming apparatus of the present invention, the pushing unit 11 may push the die arranged at the die positioning position to the corresponding heating position in the heating channel 2 in various ways. For example, in one form, a plurality of corresponding pushing units 11 are provided along the direction of the cloth, such as a pushing cylinder, and each pushing unit 11 can push its corresponding molding die into the corresponding heating with a certain time difference. Position

Alternatively, the pushing unit 11 is configured to push each die arranged at the positioning position of each die to the corresponding heating position in the heating channel 2 at the same time and can push the next die along the pushing direction by the previous die Simultaneously push each mold, that is, the advancement of the molding mold is driven by the molding mold at the back, and the pushing unit 11 is only responsible for estimating the new molding mold that is subsequently put in, so that the conventional technology is omitted. The shifting fork that pushes the forming mold forward, thereby making the multi-mold hot bending forming device of the present invention simple in structure and reducing the failure rate of the device.

Of course, the number of the pushing units 11 may be multiple and may be provided in the feed isolation bin 10, or, in order to reduce the volume of the feed isolation bin 10, it is convenient to control multiple molding dies to be pushed into their respective heating positions at the same time Preferably, as shown in FIG. 2, the pushing unit 11 includes a pushing plate 13 and a feeding pushing cylinder 14, wherein the cylinder of the feeding pushing cylinder 14 is arranged outside the feeding isolation bin 10 and the pushing rod extends into In the distribution channel 12, of course, the push rod and the wall of the feed isolation bin 10 are sealed and slidingly fitted, and the push plate 13 is connected to the push rod and extends along the distribution channel 12 to each mold positioning position. In this way, after the completed molds are arranged at the positioning positions of the molds, the push rods of the feed push cylinder 14 are extended, and all the molds are pushed into the corresponding heating positions in the heating channel at once by the push plate 13.

In addition, in order to facilitate the demolition of the forming mold in the feed isolation chamber 10 to be smoothly pushed into the heating channel 2, preferably, as shown in FIG. 2, the feeding device 1 and the heating device 3 are provided between There is a mold pushing transition plate 15; the feeding device 1 includes a receiving plate 16 with a plurality of mold positioning positions, and the receiving plate 16 can be placed in the feed isolation bin 10; the receiving plate 16 is put into the feed When the material isolation bin 10 is inside, the receiving plate 16 and the mold pushing transition plate 15 are flush; for example, the side wall of the feed isolation bin 10 is formed with a discharge port with a closed door, and the mold pushing transition plate 15 is isolated from the feed The bin 10 extends through the discharge port to the outside, for example, it can extend into the heating channel. Of course, the part of the mold pushing transition plate 15 that leaks is covered by the protective cover to avoid the molding die from contacting the external air. In this way, the operator The receiving plate 16 can be drawn out, and the forming mold is placed in the positioning position of the mold, and then inserted into the feed isolation compartment 10, at this time, the receiving plate 16 and the mold pushing transition plate 15 are flush, and the discharge port is closed After the door is opened, the pushing unit 11 can The mold is smoothly pushed out of the discharge port through the mold pushing transition plate 15 and pushed into the heating channel; and / or, as shown in FIG. 1, along the pushing direction, the multi-mold hot bending forming device is formed with a distribution channel The mold positioning position of 12 starts, and extends through the pushing guide groove 29 of the corresponding heating position, molding position, and annealing position of the annealing channel 6. For example, the side walls of the heating channel, the forming channel and the annealing channel are formed with notches, and each channel is formed with a guide wall extending along the pushing direction. The two guide walls and the notch will form a pushing guide groove 29, which is pushed along With the material guide groove 29, the material pushing unit 11 can push each molding die to pass through the heating position, the molding position and the annealing position in order, so as to avoid jamming due to mutual interference.

In addition, in order to reduce the surface defects of the glass and improve the molding quality of the glass, preferably, as shown in FIG. 2, the feeding device 1 includes a feeding driving device 17 and an isolating cover 18 located in the isolating storage compartment 10. A vent port is formed on 18, and the feed driving device 17 can drive the isolation cover 18 to switch between an isolated state in which the positioning position of the mold is sealed and a non-isolated state away from the positioning position of the mold. In this way, since the isolation cover 18 is located in the feed isolation chamber 10 and has an isolation state that seals the positioning position of the mold, in actual use, a well-sealed molding mold with a glass sheet inside (such as in the prior art) (Molding mold without a ventilation slot) is placed at the positioning position of the mold, and then inert gas is injected into the feed isolation chamber 10 to replace the air in the feed isolation chamber 10, and an isolation cover is used in the feed isolation chamber 10 18 Seal the molding die to form an isolated sealed space, and then use an external vacuum equipment to evacuate the isolated sealed space through the vent interface to exhaust the air in the isolated sealed space, the air in the cavity of the molding die, and the gap between the molding die At the same time, the dust on the glass surface of the forming mold due to static electricity is also taken away by vacuum, so that the oxygen in the forming mold is exhausted as much as possible, and then can be replenished through the vent port through the external air supplement device Inert gas is introduced. At the same time, because the molding die is relatively sealed, the amount of gas exchange inside and outside the molding die is relatively small. Dust supplemented continuous operation due to the flow of an inert gas such as nitrogen produced adheres to the glass and the mold surface smaller, thereby reducing surface defects in the glass produced, to enhance the quality of the glass molding.

In the multi-mold hot-bending forming apparatus of the present invention, various ways can be used to suck vacuum and inert gas into the isolated sealed space through the vent interface, for example, in one way, the feed drive device 17 drives the isolation cover 18 to isolate To switch between the state and the non-isolated state, an additional flexible tube can be passed through the wall of the feed isolation bin 10 and connected to the vent port. One end of the flexible tube can be connected to the vent port, and the other end can be connected to the external The air supply device and the vacuum device are connected, so that in the isolated state, the conversion joint connects the vacuum device and the flexible tube to evacuate. After the vacuum is completed, the conversion joint connects the air supplement device and the flexible tube to supplement the inertness gas.

Or, in another way, the connection structure between the feed drive device 17 and the isolating cover 18 can be used to evacuate and supplement the gas, for example, referring to the structure shown in FIG. 2, the feed drive device 17 is driven by the connection pipe The isolation hood 18 is switched between the isolation state and the non-isolation state, and one end of the connecting tube is connected to the vent port, so that the feed drive device 17 can only drive the isolation hood 18 through the connection tube, and at the same time, the connection tube can be used as a vacuum tube And supplement the trachea.

Of course, the feed drive device 17 may be provided at any suitable position, for example, the feed drive device 17 may be provided in the feed isolation bin 10 and fixed on the top wall of the bin, or, as shown in FIG. 2, The feed driving device 17 is fixedly arranged outside the top wall of the feed isolation silo 10, and the connecting pipe passes through the top wall of the silo and is in sliding and sliding fit with the top wall of the silo. In this way, the feed driving device 17 can drive the isolating cover 18 downward through the connecting pipe to contact the bottom wall of the feed isolating bin 10 to be in an isolated state, or drive the isolating cover 18 to rise away from the bottom wall of the bin to be in a non-isolated state.

Further, in order to improve the convenience of the connection between the feed driving device 17 and the connecting pipe and the reliability of the movement of the connecting pipe, preferably, as shown in FIG. 2, an end plate 34 is connected to the power output end of the feed driving device 17 The connection pipe is fixedly disposed on the end plate 34. For another perspective structure of the arrangement relationship between the end plate 34 and the connection pipe in FIG. 2, reference may be made to the arrangement relationship between the end plate 34 and the water inlet pipe 26 and the water outlet pipe 27 shown in FIG. 5. In this way, one end of the connecting tube is connected to the ventilation port on the isolation cover, and the other end extends from the end plate for connecting the external air supplement device and the vacuum device.

The arrangement of the end plate 34 also facilitates the connection of multiple tubes with the isolating cover. For example, as shown in FIG. 2, in order to improve the convenience of vacuuming and inert gas injection, the connecting tube includes an air inlet pipe 19 and an air outlet pipe 20, FIG. 2 The arrangement structure of the mid-end plate 34 and the intake pipe 19 and the outlet pipe 20 can refer to the arrangement structure of the end plate 34 and the water inlet pipe 26 and the outlet pipe 27 shown in FIG. 5, the two are basically the same, and the ventilation interface includes the air inlet and the exhaust Where the feed drive device 17 is provided outside the feed isolation bin 10 and is connected to the isolation hood 18 through the intake pipe 19 and the exhaust pipe 20, the intake pipe 19 and the exhaust pipe 20 are sealingly and slidingly connected to the feed isolation bin 10 The top silo wall is matched and connected with the air inlet and the exhaust outlet respectively. In this way, in the isolated state, the inert gas with static elimination function can be injected into the isolated sealed space through the air inlet pipe 19 and the air inlet, and then evacuated through the air outlet pipe 20 and the exhaust port, and then through the air inlet pipe 19 and the inlet Inert gas is injected into the gas port.

Of course, the feed driving device 17 may have various forms. For example, the feed driving device 17 may be a cylinder. As shown in FIG. 2, an end plate is connected to the piston rod of the cylinder. Alternatively, the feed driving device 17 includes a pull rod and a locking mechanism provided between the pull rod and the feed isolation compartment. The lock mechanism includes a locking handle. Lifting the pull rod upward can make the isolation cover in a non-isolated state and move downward The lifting rod can make the isolation cover contact the bottom wall of the silo and be locked by the locking mechanism so that the isolation cover is in the isolation state.

In addition, a corresponding number of mold positioning positions can be set in the feed isolation bin as needed. For example, a plurality of mold positioning positions spaced along the cloth direction perpendicular to the pushing direction are formed in the feed isolation bin to isolate The cover can simultaneously seal multiple mold positioning positions. In this way, through a single isolating cover, it is possible to perform oxygen and dust removal operations on multiple molding dies at the same time.

In addition, as shown in FIG. 1, the heating device 3, the forming device 5 and the annealing device 7 respectively include a plurality of heating channels, forming channels and annealing channels, and are arranged along the pushing direction, that is, the heating device 3 can be preheated For the forming mold, the forming device 5 can be a hot-bending forming mold, and the annealing device 7 can anneal the hot-bending forming mold; in this way, the multi-mold hot-bending forming equipment includes a glass mold preheating area, a hot-bending forming area, and an annealing cooling area . According to the production process requirements, a total of 11 to 20 stations can be set, of which 4 to 12 stations can be set in the preheating zone, 2 to 4 stations can be set in the forming zone, and 3 to 8 stations can be set in the annealing and cooling zone. Six mold channels are set in parallel to form a six-mold hot-bending molding device, which can make six molding dies hot-bending simultaneously.

The six-mold hot bending equipment is preferably provided with a total of 13 stations, including 7 stations in the preheating zone, 3 stations in the hot bending forming zone, and 3 stations in the annealing and cooling zone.

The seven stations for preheating the glass mold in the preheating zone can heat the glass mold from room temperature to about 700 degrees to meet the glass deformation temperature. For example, after a fixed period of time, the forming mold will move from the previous heating station to the next heating station for heating. After continuous heating, the temperature of the forming mold will be heated when the forming mold enters the seventh heating station At about 700 degrees, at this time, the glass in the forming mold reaches the softening point temperature, and the forming mold enters the hot bending forming area. As shown in FIG. 3, the upper heating plate part adopts a liftable structure. When the forming mold moves to the heating station, the upper heating plate is lowered to contact the upper surface of the forming mold to improve the heating efficiency. The three channels on the left side of the upper heating plate are a group and the three channels on the right side are a group. The connection plate 31 is used for connection. The lifting cylinder drives the connection plate 31 to move up and down, so that the heating plate moves up and down.

The three stations of press forming in the hot bending forming area adopt proportional valves to control cylinder lifting and pressurizing mold forming, each proportional valve controls one cylinder, and three cylinders per station form a group, as shown in FIG. 4, forming When the mold is at about 700 degrees, it enters the first station molding station for pressure molding. The molding pressure is specifically determined according to parameters such as temperature and glass performance. The pressure range is between 1000N and 2000N. The molding mold is formed at the first station. After the molding is carried out, enter the next molding station to continue pressure setting. Each forming channel in the forming area is equipped with forming cylinders to ensure that there is enough pressure to form the glass by hot bending. At the same time, the three cylinders on the left are a group and the three cylinders on the right are a group. A substantially synchronous connecting rod 32 is provided between the connecting rods 32. The connecting rod 32 has a cross-tooth insertion structure to ensure that the forming cylinders are synchronized and the forming accuracy of each forming cylinder will not affect each other. Each forming cylinder is provided with a position detector 33 to accurately determine and control the position of the forming cylinder, which will significantly improve the glass forming quality in the forming mold.

During hot bending, the heating tube is used for heating, and the maximum temperature can be above 800 degrees to meet the glass bending temperature. The heating method is to heat the heating plate through a heating tube. The heating plate is made of silicon carbide plate material. Silicon carbide has good thermal conductivity, at the same time, the thermal expansion coefficient is small, the heating is not deformed, and the strength is high. Then, the heating plate supports the forming mold to the forming mold For heating, the hot plate serves as a carrier for the heating and support of the forming mold to have good stability and thermal uniformity, which helps to shape the glass in the forming mold. At the same time, there is a heat insulation plate on the outside of the heating plate. The heat insulation plate is a refractory material, which has high temperature resistance and thermal insulation. It protects the surrounding parts and reduces heat loss. In addition, outside the hot bending forming area, for example, the furnace body is surrounded by insulation materials, upper insulation board, lower insulation board, and side insulation board. The insulation layer of the furnace body effectively prevents heat loss in the furnace, reduces heat loss, and reduces energy consumption.

During compression molding, the mold is heated by a heating plate, and a single station uses six cylinders to drive six heating plates up and down. A cylinder stroke detection system is provided during the molding process to monitor the glass forming status.

The slow cooling setting of the annealing and cooling area is provided with three stations, and the glass is cooled and shaped near the annealing point. After the forming mold is formed and shaped in the forming area, it enters the annealing area and begins the annealing and stress relief process. After three annealing stations, the temperature of the forming mold gradually decreases, and the temperature of the glass in the forming mold also decreases, cooling down from the softening point Below the annealing point, the annealing is completed, and then enters the discharge isolation chamber 22 of the discharge device 9 from the molding furnace;

and / or,

Of course, the heating device 3, the forming device 5 and the annealing device 7 may be separate devices and hermetically connected to each other, or, in order to enhance the compactness of the structure, preferably, as shown in FIG. 1, the multi-mold hot bending forming device includes hot bending The furnace 21 and the hot bending furnace 21 include a heating device 3, a forming device 5, and an annealing device 7. In this way, the heating, forming and annealing of the glass sheet in the forming mold can be realized by a heating furnace 21.

In addition, as shown in FIG. 5, after the cooling and annealing of the forming mold, it will enter the discharge device 9. For this reason, the discharge device 9 includes a discharge isolation bin 22 and a discharge pushing cylinder 23, wherein the discharge pushing cylinder 23 The cylinder body is arranged outside the discharge isolation bin 22, the push rod of the discharge pushing cylinder 23 extends into the discharge channel 8 and is connected with the mold discharge receiving plate 24; the discharge pushing cylinder 23 can drive the mold discharge receiving板 24 进出 ANNE made channel 6.

In this way, after the molding die passes through the annealing area, the discharge pushing cylinder 23 extends, driving the mold discharge receiving plate 24 into the annealing area, the molding die is pushed onto the mold discharge receiving plate 24, and the discharge pushing cylinder 23 retracts to mold The discharge receiving plate 24 is brought into the discharge isolation bin.

Further, in order to improve the cooling effect of the forming mold in the discharge isolation bin, preferably, as shown in FIG. 5, the discharge device 9 includes a cooling plate 25 with a cooling channel formed therein, and the cooling plate 25 is located in the discharge isolation bin 22 and located above the mold discharge receiving plate 24; the cooling plate 25 is connected to the water inlet pipe 26 and the water outlet pipe 27, the water inlet pipe 26 and the water outlet pipe 27 are connected to the material discharge driving device 28 through the end plate 34, the water inlet pipe 26 and the water outlet pipe 27 is in communication with the cooling channel and sealingly slidingly cooperates with the top silo wall of the discharge isolation silo 22.

In this way, after the discharge pushing cylinder 23 is retracted and the mold discharge receiving plate 24 is brought into the discharge isolation bin, the discharge driving device 28 drives the upper cooling plate 25 down to cool the forming mold, and passes through the water inlet pipe 26 and The cooling water flowing through the water outlet pipe 27 in the cooling plate 25 can enhance the cooling effect.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, including the combination of specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention has various possible combinations No further explanation. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims

A multi-mold hot-bending forming device, characterized in that it includes a feed device (1), a heating device (3) with a heating channel (2), and a forming device (5) with a forming channel (4), which are successively sealed and connected , An annealing device (7) with an annealing channel (6) and a discharge device (9) with a discharge channel (8),

The feeding device (1) includes a feeding isolation bin (10) and a pushing unit (11), and a pushing material along the pushing unit (11) is formed in the feeding isolation bin (10) The cloth channel (12) extending in the cloth direction perpendicular to the direction,

The cloth channel (12) has a plurality of mold positioning positions arranged at intervals along the cloth direction, the heating channel (2) has corresponding multiple heating positions, and the molding channel (4) has corresponding multiple Forming positions,

Along the pushing direction, each mold positioning position, heating position, and molding position can communicate with each other and can communicate with the annealing channel (6) and the discharge channel (8),

The pushing unit (11) is configured to push the mold arranged at the positioning position of the mold into a corresponding heating position in the heating channel (2).
The multi-mold hot bending forming apparatus according to claim 1, wherein the pushing unit (11) is configured to simultaneously push each mold arranged at each mold positioning position into the heating channel (2 ) At the corresponding heating position and can push each mold simultaneously along the pushing direction by the previous mold pushing the next mold.
The multi-die hot bending forming apparatus according to claim 2, characterized in that the pushing unit (11) includes a pushing plate (13) and a feeding pushing cylinder (14), wherein,

The cylinder body of the feed pushing cylinder (14) is arranged outside the feed isolating bin (10) and a push rod extends into the distribution channel (12), and the push plate (13) is connected to the The push rod extends along the distribution channel (12) to each mold positioning position.
The multi-mold hot bending forming apparatus according to claim 1, characterized in that a mold pushing transition plate (15) is provided between the feed device (1) and the heating device (3); the feed The device (1) includes a material receiving plate (16) having a plurality of positioning positions of the mold, and the material receiving plate (16) can be placed in the feed isolation warehouse (10) so as to be able to be placed; When the material plate (16) is put into the feed isolation warehouse (10), the material plate (16) and the mold pushing transition plate (15) are flush;

and / or,

Along the pushing direction, the multi-mold hot-bending forming equipment is formed from the positioning position of the mold of the cloth channel (12), extending through the corresponding heating position, forming position and the annealing channel (6) Pushing guide groove (29) at the annealing position.
The multi-mold hot bending forming apparatus according to claim 1, characterized in that the feed device (1) includes a feed drive device (17) and an isolation cover (in the feed isolation bin (10)) 18), a ventilation interface is formed on the isolation hood (18), and the feed drive device (17) can drive the isolation hood (18) in the isolation state of sealing the positioning position of the mold and away from the mold Switch between non-isolated states of the positioning position.
The multi-mold hot bending forming apparatus according to claim 5, characterized in that the feed driving device (17) drives the isolation cover (18) between the isolated state and the non-isolated state through a connecting pipe And the one end of the connecting tube is connected to the ventilation port.
The multi-mold hot bending forming apparatus according to claim 6, characterized in that the connection pipe includes an air inlet pipe (19) and an air outlet pipe (20), and the ventilation port includes an air inlet and an air outlet;

The feed driving device (17) is provided outside the feed isolation bin (10) and is connected to the isolation cover (18) through an air inlet pipe (19) and an air outlet pipe (20),

The air inlet pipe (19) and the air outlet pipe (20) sealingly and slidingly cooperate with the top silo wall of the feed isolation silo (10), and are respectively connected with the gas inlet and the gas exhaust.
The multi-die hot bending forming apparatus according to claim 1, wherein the heating device (3), the forming device (5) and the annealing device (7) respectively include a plurality of heating channels and forming channels And annealing channels, and arranged along the pushing direction;

and / or,

The multi-mold hot bending forming apparatus includes a hot bending furnace (21), and the hot bending furnace (21) includes the heating device (3), the forming device (5), and the annealing device (7).
The multi-die hot bending forming apparatus according to any one of claims 1-8, characterized in that the discharge device (9) includes a discharge isolation bin (22) and a discharge pushing cylinder (23), wherein ,

The cylinder body of the discharge push cylinder (23) is arranged outside the discharge isolation bin (22), and the push rod of the discharge push cylinder (23) extends into the discharge channel (8) And connected with the mold discharge board (24);

The discharge pushing cylinder (23) can drive the mold discharge receiving plate (24) into and out of the annealing channel (6).
The multi-die hot bending forming apparatus according to claim 9, characterized in that the discharge device (9) includes a cooling plate (25) with a cooling channel formed therein, and the cooling plate (25) is located at the outlet In the material isolation bin (22) and above the mold discharge receiving plate (24);

The cooling plate (25) is connected to the discharge driving device (28) through a water inlet pipe (26) and a water outlet pipe (27), and the water inlet pipe (26) and the water outlet pipe (27) communicate with the cooling channel And sealingly slidingly cooperates with the top silo wall of the discharge isolation silo (22).