All-electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment

Abstract

The utility model discloses full-electric-drive ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment, which comprises a control box, a feeding assembly, a pressure forming execution unit, a discharging assembly and an electric control cabinet, and adopts an infrared radiation heating mode to carry out rapid non-isothermal heating on a glass prefabricated part. And an ultrasonic vibration element and a pressure sensing element are arranged in the lower mold base of the mold pressing station, and when the prefabricated part is heated to a softening point, the ultrasonic vibration element is started to cooperatively work with an infrared heating technology, so that the filling speed and quality of glass mold pressing forming are improved. The full-electric driving technology is used, the control precision and the die pressing forming efficiency are high, in addition, compared with a traditional glass die pressing machining mode, the infrared heating element and ultrasonic vibration cooperative work machining technology achieves precise and efficient machining of a glass prefabricated part, the problem of interference of heating and vibration in traditional die pressing is solved, and the production efficiency is improved. And the forming precision and efficiency of the product are improved.

Description

Technical Field

[0001] This invention relates to the field of optical glass production equipment, and in particular to a multi-station precision glass molding equipment assisted by an all-electrically driven ultrasonic vibration-infrared heating energy field. Background Technology

[0002] A glass molding machine is an important piece of machinery used for glass forming, primarily for manufacturing various optical glasses and other glass products. Glass molding is a processing technology based on the principle of thermoforming; this method has a simple process flow, is easy to operate, has low cost, and can be mass-produced.

[0003] Ultrasonic vibration-assisted molding technology involves placing glass preforms on ultrasonic vibration elements and applying ultrasonic vibrations during the molding process to improve the flowability of glass materials in micro-scale mold grooves, increase the filling rate and surface accuracy of microstructures, improve demolding difficulties and glass breakage, and improve product quality and production efficiency.

[0004] Infrared heating technology offers high heating efficiency, concentrated heating area, and more precise temperature control, ensuring that the glass quickly reaches the predetermined temperature at different stations during the molding process, thereby improving the efficiency of glass forming equipment.

[0005] The use of a fully electric motor-driven system provides high control precision and ease of operation, ensuring that the control precision of mold closing speed, position, and forming force meets technical requirements, thereby improving product quality.

[0006] This invention employs multi-energy field assisted molding to solve the technical problems of poor filling rate, low demolding performance, and low forming efficiency of complex optical glass components in traditional molding. Summary of the Invention

[0007] To address the aforementioned problems, this invention proposes a fully electrically driven ultrasonic vibration-infrared heating energy field-assisted multi-station precision glass molding equipment, which solves the technical difficulties of poor filling rate and poor demolding performance of complex optical glass in traditional molding.

[0008] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0009] The present invention also provides an all-electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass molding equipment, including a control box (100), a feeding assembly (200), a pressure forming execution unit (300), a discharging assembly (400), and an electrical control cabinet (500).

[0010] The control box (100) is an industrial control all-in-one computer, which is small in size, easy to operate, and highly intelligent. The industrial control all-in-one computer is located on the right side of the equipment and is fixedly installed on the frame. It is connected to the feeding assembly (200), the pressure forming execution unit (300), the discharging assembly (400), and the electrical control cabinet (500) to ensure that the forming equipment accurately processes the glass components according to the preset program.

[0011] The feeding assembly (200) is located on the right side of the pressure forming execution unit (300), fixed on the outer right wall of the forming chamber (350), and the lower edge of the feeding gate is flush with the processing station of the forming chamber (350). It is used to feed the assembly of the preform and the mold into the forming chamber (350). The feeding assembly (200) includes two feeding gates. The two feeding gates have the same structure and are simple. Sealing strips are provided on the slide rails on both sides of the feeding gates. When the feeding gates are kept closed, the oxygen-free environment of the forming chamber (350) can be guaranteed. When the first feeding gate (230) is opened, nitrogen gas will be sprayed into the feeding chamber (250) to prevent air from entering the forming chamber (350), thereby protecting the vacuum environment of the forming chamber (350) from being damaged, and thus preventing the preform and the mold from oxidizing at high temperature.

[0012] The pressure forming execution unit (300) is used for multi-station transfer and processing of the assembly of preforms and molds; the pressure forming execution unit (300) includes a material transfer mechanism (340), a preheating station 1, a preheating station 2, a preheating station 3, a molding station (320), an annealing station 1, an annealing station 2, a cooling station 1 and a cooling station 2, and the eight stations are arranged in a straight line. Nitrogen gas is continuously filled into the forming chamber (350) during the processing, and the amount of nitrogen gas is adjusted in real time according to the vacuum degree inside the forming chamber (350);

[0013] The material transfer mechanism (340) is arranged horizontally on the rear side of the eight stations. The rotary motor (341) is connected to the gear, and the gear is fixed to the material transfer shaft. The rotary motor (341) and the telescopic electric cylinder (343) work together to realize the 90-degree flipping motion and linear motion of the shift fork, which is used to transfer the prefabricated part to the next station for further processing after the prefabricated part has been processed in the previous station.

[0014] The preheating, molding, and annealing stations are equipped with a first infrared heating tube (317E) and a second infrared heating tube (328D), fixed on the front and rear sides of the upper cooling plate. These provide uniform heating to the upper and lower mold bases and the assembly. The temperature difference of a single infrared heating element can be controlled within ±1℃. Driven by a motor, the first upper mold base (317C) moves the first infrared heating tube (317E) downwards, thus achieving non-contact heating of the upper and lower mold bases, as well as the glass preform and mold assembly. The first infrared heating tube (317E) enables the mold and preform to rapidly reach the preset temperature with uniform heating.

[0015] The molding station (320) is equipped with an ultrasonic vibration element (328G) on the lower cooling plate, which works in conjunction with infrared heating to process the preform. When the heating reaches the softening point, the ultrasonic vibration element (328G) is activated simultaneously to reduce the viscosity of the glass by using vibration energy, which can reduce the molding pressure and obtain higher product quality. The molding station (320) and the annealing station are respectively equipped with pressure sensing elements (328H) below the lower cooling plate. During the molding process, when the connecting shaft enters and exits the molding chamber (350), the frictional resistance between the sealing ring and the connecting shaft may cause the second upper mold base to be damaged. (328B) The actual pressure on the glass preform and mold assembly is difficult to accurately reach the preset value. Therefore, a pressure sensing element (328H) is set to monitor the pressure change in real time and feed the data back to the control box (100) so as to make timely motion control and ensure pressure accuracy. In addition, considering that the working pressure of the molding station (320) and the annealing station is large, stress concentration is likely to occur inside the glass preform, which may lead to defects such as cracks. Therefore, the pressure must be continuously monitored and the pressure value must be strictly prevented from exceeding or falling below the process requirements to ensure the molding quality and process stability of the product.

[0016] Multiple nitrogen inlets are provided on the outside of the forming chamber (350) to allow sufficient nitrogen to be filled into the forming chamber (350), thereby preventing the preform and molding assembly from oxidizing at high temperatures; and cooling water channels are provided on the outer side plate of the forming chamber (350) to prevent the temperature from being too high, causing damage to the surrounding auxiliary mechanism components, thereby shortening the service life or causing high-temperature failure; the discharge assembly (400) is located on the left side of the molding machine and is fixedly installed on the outer left wall of the forming chamber (350) to send the assembly drawing of the mold and the preform out of the pressure forming execution unit (300); the discharge assembly (400) is similar in structure to the feeding assembly (200). When the second discharge gate mechanism (430) is opened, nitrogen will be sprayed into the discharge chamber (440) to prevent air from entering the forming chamber (350), preventing the destruction of the vacuum environment of the forming chamber (350), thereby preventing the preform and mold from oxidizing at high temperatures;

[0017] The electrical control cabinet (500) is used to support the feeding assembly (200), pressure forming execution unit (300), discharging assembly (400) and control box (100) and to install various electrical appliances to provide electrical control support. The electrical control cabinet (500) also contains some cooling water pipes, wires, and various instruments and meters to regulate and control the normal operation of the equipment, and finally feeds back to the control box (100) to form a control system.

[0018] Preferably, as one possible implementation: the control box (100) includes a warning light (110), a housing (120), a human-machine interface (130), an adjustment button (140), a start button (150), a stop button (160), an emergency stop button (170), a temperature controller (180), and a support cantilever (190).

[0019] The warning light (110) is installed above the housing (120). When the equipment malfunctions or needs to be shut down for maintenance, the warning light (110) will flash to remind the operator to prevent accidents and losses caused by misoperation.

[0020] The housing (120) is used to mount the display screen and various control buttons and warning lights (110);

[0021] The human-machine interface (130) is used to display parameters such as temperature, pressure, molding time and molding speed of the equipment, which can be monitored and adjusted in a timely manner to ensure the normal operation of the equipment and the quality of the products.

[0022] The control buttons are located below the human-machine interface and include an adjustment button (140), a start button (150), a stop button (160), and an emergency stop button (170).

[0023] Preferably, as one possible implementation: the feeding assembly (200) includes a feeding mechanism (210), a pushing mechanism (220), a first feeding gate mechanism (230), a second feeding gate mechanism (240), and a feeding chamber (250); the feeding assembly (200) is fixed to the outer right side of the forming chamber (350);

[0024] The feeding mechanism (210) includes a feeding module (211), a tray (212), a connecting block (213), a feeding photoelectric sensor (214), a feeding photoelectric sensor sheet (215), and a hydraulic buffer (216). The feeding module (211) provides power to the feeding mechanism. The tray (212) has grooves that provide anti-slip properties during assembly transportation. The tray (212) also has passages for connecting a vacuum generator to place the glass preform and mold assembly in a vacuum environment, preventing the glass preform and mold assembly from shifting or falling off when moving with the feeding module (211). The feeding photoelectric sensor (214) is used for signal reception, transmitting the signal to the control box for feedback, and determining whether the assembly has reached the desired position.

[0025] The pushing mechanism (220) includes a pushing module (221), a side pushing connecting column (222), a reinforcing rib (223), a side pushing shaft (224), a pushing block (225), a pushing photoelectric sensor (226), and a pushing photoelectric sensor sheet (227).

[0026] The feeding chamber (250) creates a sealed space before the assembly of the preform and the mold enters the forming chamber (350) to prevent air from entering the forming chamber (350); at the same time, there are multiple nitrogen filling ports on the outside of the forming chamber (350) to prevent air from entering the forming chamber (350), and a viewing window is provided on the rear side of the chamber to observe the internal condition of the feeding chamber (250) in a timely manner.

[0027] Preferably, as one possible implementation: the general molding mechanism (310) has five stations in the molding chamber (350), namely preheating station one, preheating station two, preheating station three, annealing station one, and annealing station two. The cooling mechanism (330) includes cooling station one and cooling station two, plus the molding station (320). The driving mechanism and support mechanism of the eight stations are on the outside of the molding chamber (350), and the working part is inside the molding chamber (350), arranged in a straight line in the pressure forming execution unit (300). The preheating station has three stations for heating the preform and mold step by step, which is highly efficient. After reaching the preset temperature, the molding station (320) presses and shapes the parts. After pressing, the parts need to be annealed to eliminate internal stress and improve product quality. The upper and lower cooling plates of the cooling station are filled with cooling water to cool the assembly. After processing, the parts are sent out of the forming chamber (350) by the material transfer mechanism (340). During the start-up of the molding equipment, the forming chamber (350) is continuously filled with nitrogen to keep the interior in an oxygen-free environment.

[0028] The nitrogen filling port is located on the upper plate of the forming chamber (350) near the inlet and outlet, creating an oxygen-free environment inside the forming chamber (350). The middle of the side wall of the forming chamber (350) is insulated with mica board, and the outer side plate is equipped with water channels to prevent high temperature from damaging other components.

[0029] The material transfer mechanism (340) includes a rotary motor (341), a gear (342), a telescopic electric cylinder (343), a support frame (344), and a shift fork (345). The material transfer mechanism (340) is arranged horizontally on the rear side of the eight workstations, and the shift fork (345) is placed parallel to the lower mold base at a position 3mm higher. The rotary motor (341) provides power and connects to the gear (342) to drive the shift fork to perform a 90-degree reciprocating flipping action. The telescopic electric cylinder (343) provides power for the shift fork to perform linear motion, completing the transfer of the assembly until the processing is completed and it is sent out of the forming chamber (350) to the discharge chamber (440).

[0030] Preferably, as one possible implementation: the general molding mechanism (310) includes a first motor (311), a first electric cylinder (312), a first buckle (313), a first slider (314), a first guide rail (315), a first urethane rubber (316), a first water pipe (317A), a first upper cooling plate (317B), a first upper mold base (317C), a first thermocouple (317D), a first infrared heating tube (317E), a first lower mold base (318A), a first lower cooling plate (318B), a pad (318C), and a first base plate (318D). The heating temperatures of the preheating stations one, two, and three increase sequentially to improve heating efficiency and reach the softening point of the preform at a faster speed. The annealing station is equipped with a pressure sensing element compared to the preheating station for real-time monitoring of the pressure.

[0031] The infrared heating elements are symmetrically arranged on the front and rear sides of the first upper cooling plate (317B) to uniformly heat the upper and lower mold bases, as well as the assembly of the glass preform and the mold.

[0032] The first thermocouple (317D) is installed inside the upper and lower mold bases to monitor the real-time temperature during the heating process and provide timely feedback for adjustment.

[0033] Preferably, as one possible implementation: the molding station (320) includes a second motor (321), a reducer (322), a second electric cylinder (323), a second buckle (324), a second slider (325), a second guide rail (326), a second urethane rubber (327), a second upper cooling plate (328A), a second upper mold base (328B), a second thermocouple (328C), a second infrared heating tube (328D), a second lower mold base (328E), a second lower cooling plate (328F), an ultrasonic vibration element (328G), a pressure sensing element (328H), and a second base plate (328I); the ultrasonic vibration element is installed in the lower mold base to provide a mechanical vibration field, assisting the infrared heating multi-energy field molding equipment in molding the preform.

[0034] Water channels are provided in the second upper cooling plate (328A) and the second lower cooling plate (328F). Meanwhile, the upper part of the second upper mold base (328B) and the lower part of the second lower mold base (328E) are designed with openwork to prevent heat conduction from the upper and lower mold bases from affecting other components and causing unnecessary trouble. During the compression molding process, when the connecting shaft enters and exits the molding chamber (350), the frictional resistance between the sealing ring and the connecting shaft may cause the actual pressure of the second upper mold base (328B) on the glass preform and mold assembly to be difficult to accurately reach the preset value. Value; The second infrared heating tube (328D) of the molding station (320) is longer than that of other stations. It is symmetrically arranged on the front and rear sides of the second upper cooling plate (328A) to heat the upper and lower mold bases as well as the assembly of the glass preform and the mold. The heating efficiency is higher by using infrared heating, and the purpose is to more effectively mold the preform; The ultrasonic vibration element (328G) is installed in the lower mold base to provide a mechanical vibration field to assist the infrared heating multi-energy field molding equipment in molding the preform.

[0035] Preferably, as one possible implementation: the cooling mechanism (330) includes a third motor (331), a third electric cylinder (332), a connecting shaft (333), a T-nut (334), a fixing block (335), a third upper cooling plate (336), a third water pipe (337), a third lower cooling plate (338), and a third base plate (339).

[0036] Preferably, as an implementation scheme: all outer side plates of the forming chamber (350) are provided with water channels to prevent the temperature of the forming chamber (350) from being too high. The outer side plate and the inner side plate of the forming chamber (350) are insulated with a mica plate, so that the outer side can reach a safe temperature and avoid unnecessary danger and damage to other components; the upper side plate has 4 nitrogen filling holes, and the lower side plate also has holes for providing circulating water to the lower cooling plate through a cold water pipe; there are 4 sealed doors in the front and back, which are also composed of three layers of plates. Each door is also provided with a cooling water channel and a viewing window, so that the condition inside the forming chamber (350) can be observed in time.

[0037] Preferably, as one possible implementation: the discharge assembly (400) includes a discharge mechanism (410), a first discharge gate mechanism (420), a second discharge gate mechanism (430), a discharge chamber (440), and a connecting platform (450).

[0038] Compared with the prior art, the advantages of this invention are as follows:

[0039] The aforementioned all-electrically driven ultrasonic vibration-infrared heating energy field-assisted multi-station precision glass molding equipment employs a fully motor-driven approach, boasting high control precision and molding efficiency. It ensures that the control precision of mold closing speed, position, and forming force meets technical requirements. Furthermore, compared to traditional glass molding methods, the heating method combining infrared heating elements and ultrasonic vibration exhibits superior processing performance, enabling precise heating of glass preforms. This technology facilitates temperature control, thereby significantly improving the quality and efficiency of glass molding products. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the control box of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the feeding assembly of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the feeding mechanism in the feeding assembly of the multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the pushing mechanism in the feeding assembly of the multi-station precision glass molding equipment provided in this embodiment of the invention;

[0045] Figure 6 This is a schematic diagram of the pressure forming execution unit structure of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the general molding mechanism of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0047] Figure 8 This is a schematic diagram of the upper heating mechanism of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0048] Figure 9 This is a schematic diagram of the lower heating mechanism of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0049] Figure 10 This is a structural schematic diagram of the molding station and partial view of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0050] Figure 11 This is a schematic diagram of the cooling station of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0051] Figure 12 This is a schematic diagram of the material transfer mechanism of a multi-station precision glass molding equipment provided in an embodiment of the present invention;

[0052] Figure 13 This is a schematic diagram of the material output component of a multi-station precision glass molding equipment provided in an embodiment of the present invention. Detailed Implementation

[0053] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0055] See Figure 1 The present invention provides a fully electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass molding equipment, including a control box (100), a feeding component (200), a pressure forming execution unit (300), a discharging component (400), and an electrical control cabinet (500). The electrical control cabinet (500) is connected to each component to realize control, and the control box (100) is responsible for receiving key signals such as pressure and temperature.

[0056] See Figure 2The control box (100) includes a warning light (110), a housing (120), a human-machine interface (130), an adjustment button (140), a start button (150), a stop button (160), an emergency stop button (170), a temperature controller (180), and a support cantilever (190).

[0057] Before starting the equipment, it must be ensured that the power supply is correctly connected. After the power is connected, the operator needs to input key process parameters such as temperature, pressure, molding time, and molding speed through the human-machine interface (130). The adjustment button (140) is used to adjust the manual mode and the automatic mode. The manual mode is to manually operate the human-machine interface to perform the actions of each structure, while in the automatic mode, the equipment automatically performs the actions according to the preset program. After the start button (150) is pressed, the equipment will start running. The temperature controller (180) is responsible for maintaining the temperature in the ideal state during the processing. If the machine tool encounters abnormal operation or a sudden situation in the middle, the emergency stop button (170) needs to be pressed to quickly brake the machine tool to prevent unnecessary danger. After the preform is processed, press the stop button 170 to stop the operation of the equipment.

[0058] See Figure 3 The feeding assembly (200) includes a feeding mechanism (210), a pushing mechanism (220), a first feeding gate mechanism (230), a second feeding gate mechanism (240), and a feeding chamber (250).

[0059] The feeding assembly (200) performs the feeding operation, including the following specific steps:

[0060] The assembly of the mold and preform is placed on the tray (212) of the feeding mechanism (210). When the feeding photoelectric sensor (214) detects it, the feeding module (211) is activated, the first feeding gate (230) is opened, and then the material is sent to the feeding chamber (250). The material is then sent into the forming chamber (350) by the pushing mechanism (220) to complete the feeding operation of the assembly. At the same time as the first feeding gate (230) is opened, nitrogen gas will be sprayed into the feeding chamber (250) to prevent air from entering the forming chamber (350), thereby protecting the vacuum environment of the forming chamber (350) from being damaged, and thus preventing the preform and mold from oxidizing at high temperature.

[0061] See Figure 4 The feeding mechanism (210) includes a feeding module (211), a tray (212), a connecting block (213), a feeding photoelectric sensor (214), a feeding photoelectric sensor sheet (215), and a hydraulic buffer (216).

[0062] The feeding mechanism (210) performs the feeding operation, including the following specific steps:

[0063] The tray (212) is fixed to the feeding module (211) by the connecting block (213) and moves with the feeding module (211). When the feeding photoelectric sensor (214) senses it, the feeding module (211) moves to send the tray (212) to the front of the first feeding gate (230). The feeding photoelectric sensor (215) scans the feeding photoelectric sensor (214) and transmits the sensed signal to the control box (100), which feeds back to the feeding module (211) to stop moving. After the first feeding gate (230) opens, the material enters the feeding chamber (250). Nitrogen is filled inside to prevent air from entering the forming chamber (350). The feeding module (211) moves further to the straight position of the push block (225) of the push mechanism (220). At this time, the push mechanism (220) moves to push the assembly of the preform and the mold to the front of the second feed gate. The feeding module (211) resets, the first feed gate (230) closes, and then the second feed gate 240 opens. The push mechanism (220) continues to move to push the assembly into the middle position of the first lower mold base (318A) of the preheating station of the forming chamber (350).

[0064] It should be noted that the staff or robotic arm places the assembly of the mold and prefabricated parts on the tray (212). The tray (212) has a passage for connecting a vacuum generator to create a vacuum atmosphere around the assembly, which is used to prevent the assembly from shifting or falling when it moves with the feeding module (211).

[0065] See Figure 5 The pushing mechanism (220) includes a pushing module (221), a side pushing connecting column (222), a reinforcing rib (223), a side pushing shaft (224), a pushing block (225), a pushing photoelectric sensor (226), and a pushing photoelectric sensor sheet (227).

[0066] The pushing mechanism (220) performs the pushing operation, including the following specific steps:

[0067] The side push connecting column (222) is connected to the side push shaft (224), and the end of the side push shaft (224) is connected to the push block (225). After the assembly enters the feeding chamber (250) and is set in position with the feeding mechanism 210, the pushing mechanism (220) pushes the assembly of the preform and the mold to the front of the second feeding gate 240. The feeding module (211) is reset, the first feeding gate (230) is closed, and then the second feeding gate 240 is opened. The pushing mechanism (220) continues to operate and pushes the assembly into the middle position of the first lower mold base (318A) of the preheating station of the forming chamber (350). The pushing mechanism (220) is reset, and then the second feeding gate 240 is closed, completing the feeding operation.

[0068] See Figure 6The pressure forming execution unit (300) includes a material transfer mechanism (340), preheating station 1, preheating station 2, preheating station 3, molding station (320), annealing station 1, annealing station 2, cooling station 1 and cooling station 2, and the eight stations are arranged sequentially along a straight line. After entering the forming chamber (350), the assembly is first preheated at the preheating station to soften it. After the preheating station is completed, the material transfer mechanism (340) transfers the assembly to the molding station (320). 0) The molding process is completed. The molding station (320) performs molding operation on the assembly according to the set molding temperature, molding time, molding speed, molding pressure and other relevant parameters. After molding, the annealing station performs pressure holding annealing treatment on the assembly to eliminate the internal stress of the preform and improve the forming effect. After annealing, the cooling station cools it. After the set cooling time and temperature are reached, the material transfer mechanism (340) sends it out of the forming chamber (350) to complete the processing of the preform.

[0069] See Figure 7 The general molding mechanism (310) includes a first motor (311), a first electric cylinder (312), a first buckle (313), a first slider (314), a first guide rail (315), a first urethane adhesive (316), an upper heating mechanism, and a lower heating mechanism.

[0070] See Figure 8 The upper heating mechanism (317) includes a first water pipe (317A), a first upper cooling plate (317B), a first upper mold base (317C), a first thermocouple (317D), and a first infrared heating tube (317E).

[0071] See Figure 9 The lower heating mechanism (318) includes a first lower mold base (318A), a first lower cooling plate (318B), a pad (318C), and a first base plate (318D).

[0072] The preheating station performs a preheating operation, including the following specific steps:

[0073] The preheating stations are preheating station one, preheating station two, and preheating station three. The heating temperatures of preheating station one, preheating station two, and preheating station three increase sequentially in order to increase heating efficiency and reach the softening point of the preform at a faster speed.

[0074] After the mold and preform assembly enter the molding chamber (350) preheating station one, the preheating station electric cylinder drives the slider to press straight down along the guide rail according to the set molding speed. The double guide rail is more stable. The slider and electric cylinder are connected by a T-nut and the first buckle (313) with clearance fit, which can avoid assembly problems due to errors. Water channels are provided in the upper and lower cooling plates, and circulating cooling water is provided through water pipes. At the same time, the upper and lower mold bases adopt a hollow design to prevent the upper and lower mold bases from affecting the damage of other parts and causing unnecessary trouble. The infrared heating element is fixed on the front and rear sides of the first upper cooling plate (317B) to heat the upper and lower mold bases and the assembly evenly. The first thermocouple (317D) is set inside the upper and lower mold bases. According to the set molding time, when a certain molding temperature is reached, the electric cylinder is reset, and the material transfer mechanism (340) moves the mold and preform assembly to the preheating station two and preheating station three to continue heating and complete the preheating work.

[0075] The annealing station performs the annealing operation, including the following specific steps:

[0076] After the assembly is moved to the first annealing station by the transfer mechanism (340), the control box (100) sends a signal, and the rotational motion of the motor is converted into the linear motion of the electric cylinder, which drives the slider to move down along the guide rail. Subsequently, the upper heating mechanism (317) is driven to press down. The assembly is molded according to the molding speed and molding pressure set by the control box (100). The first infrared heating tube (317E) also heats the assembly according to the molding temperature set by the control box (100). After the processing at the first annealing station is completed, the control box (100) feeds back to the motor, which drives the electric cylinder to reset. The transfer mechanism (340) moves the assembly to the next annealing station. After the processing is completed, the motor drives the electric cylinder to reset, and then the transfer mechanism (340) moves the assembly to the first cooling station.

[0077] It should be noted that, compared to the preheating station, the annealing station has a pressure sensing element installed below the lower cooling plate 318B. Because the annealing process has strict pressure requirements, the pressure needs to be monitored throughout the process to prevent excessive or insufficient pressure from causing excessive internal stress in the product and affecting the quality of the finished product.

[0078] See Figure 10 The molding station (320) includes a second motor (321), a reducer (322), a second electric cylinder (323), a second buckle (324), a second slider (325), a second guide rail (326), a second urethane rubber (327), a second upper cooling plate (328A), a second upper mold base (328B), a second thermocouple (328C), a second infrared heating tube (328D), a second lower mold base (328E), a second lower cooling plate (328F), an ultrasonic vibration element (328G), a pressure sensing element (328H), and a second base plate (328I).

[0079] The molding station (320) performs the molding operation, including the following specific steps:

[0080] After the assembly is sent to the molding station (320) by the transfer mechanism (340), the control box (100) controls the motor, converting the rotational motion of the second motor (321) into the linear motion of the electric cylinder, which in turn drives the second slider (325) to move downward along the second guide rail (326). The slider and the second upper cooling plate (328A) are connected by a shaft and a flange. The second urethane rubber (327) is placed under the slider to prevent the slider from colliding with the connecting plate below. Finally, the second upper mold base (328B) connected to the second upper cooling plate (328A) presses on the assembly. According to the molding pressure, molding speed and molding temperature set by the control box (100), the ultrasonic vibration element (328G) assists in completing the molding process. After the assembly is processed at the molding station (320), the control box (100) feeds back to the second motor (321), which drives the second electric cylinder (323) to reset. The transfer mechanism (340) then moves the assembly to the next station.

[0081] It should be noted that a pressure sensing element (328H) is arranged below the ultrasonic vibration element (328G) to monitor the pressure changes during the molding process in a timely manner, and the control box (100) performs closed-loop regulation; there is a second thermocouple (328C) inside the upper and lower mold bases, which can monitor the temperature changes during the molding process in a timely manner, and the control box (100) performs closed-loop regulation. During the molding process, the upper and lower cooling plates are cooled by the continuous flow of circulating water through the water pipes.

[0082] See Figure 11 The cooling mechanism (330) includes a third motor (331), a third electric cylinder (332), a connecting shaft (333), a T-nut (334), a fixing block (335), a third upper cooling plate (336), a third water pipe (337), a third lower cooling plate (338), and a third base plate (339). The cooling mechanism (330) is relatively simple compared to other workstations. There are circulating water channels in the upper and lower cooling plates. The assembly is cooled and cooled to its final shape by light contact.

[0083] The cooling mechanism (330) performs a cooling operation, including the following specific steps:

[0084] After the assembly is moved to the first cooling station by the transfer mechanism (340), the control box (100) sends a signal, and the rotational motion of the third motor (331) is converted into the linear motion of the third electric cylinder (332), which drives the third upper cooling plate (336) to move downward until it lightly touches the assembly. The third upper cooling plate (336) and the third lower cooling plate (338) begin to cool the assembly. After the cooling is completed at the first cooling station, the assembly is transferred to the second cooling station by the transfer mechanism (340) for further cooling.

[0085] It should be noted that there is a distance between the T-nut (334) and the third upper cooling plate (336). The cooling process does not require excessive pressure on the assembly. It only needs to be cooled by light contact. The gap between the T-nut (334) and the third upper cooling plate (336) provides a certain distance buffer for the third electric cylinder (332) to prevent excessive pressure during the cooling process from damaging the formed product.

[0086] See Figure 12 The material transfer mechanism (340) includes a rotary motor (341), a gear (342), a telescopic electric cylinder (343), a support frame (344), and a shift fork (345).

[0087] The material transfer mechanism (340) performs the material transfer operation, including the following specific steps:

[0088] After the assembly is pushed to the first preheating station by the feeding component (200) and the pushing mechanism (220), the pushing mechanism (220) is reset, the second feeding gate 240 is closed, and the first step of preheating processing of the assembly begins. After the processing at the first preheating station is completed, the telescopic electric cylinder (343) drives the shift fork (345) to move the assembly to the next station according to the distance set by the control box (100). The telescopic electric cylinder (343) then moves back a distance to prevent the shift fork (345) from scraping the preform and the mold assembly when rotating. The rotary motor (341) connected to the gear (342) rotates, causing the shift fork (345) to rotate 90 degrees. Then the telescopic electric cylinder (343) is reset again to complete one material transfer process of the assembly. After the processing at this station is completed, the above process is repeated until the processing is completed and the assembly is sent out of the forming chamber (350). Finally, the assembly is sent out to the docking station (450) by the discharge component (400).

[0089] See Figure 13 The discharge assembly (400) includes a discharge mechanism (410), a first discharge gate mechanism (420), a second discharge gate mechanism (430), a discharge chamber (440), and a connecting platform (450).

[0090] The discharge assembly (400) performs the discharge operation, including the following specific steps:

[0091] After the assembly is processed in the forming chamber (350), it is sent to the discharge chamber (440) and the push block in a straight line by the transfer mechanism (340). Then the discharge chamber (440) sends the assembly out of the discharge chamber (440). When the second discharge gate mechanism (430) is opened, a large amount of nitrogen gas needs to be sprayed to prevent air from entering the discharge chamber (440) and thus entering the forming chamber (350), so as to prevent oxidation of the preform. The discharge mechanism (410) pushes the assembly to the docking platform (450). The second discharge gate mechanism (430) is closed, and the staff or robotic arm takes away the assembly.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station precision glass molding equipment with all-electric drive, ultrasonic vibration, and infrared heating energy field assistance, characterized in that... It includes a control box (100), a feeding assembly (200), a pressure forming execution unit (300), a discharging assembly (400), and an electrical control cabinet (500). The control box (100) is an industrial control all-in-one computer, which is small in size, easy to operate, and highly intelligent. The industrial control all-in-one computer is located on the right side of the equipment and is fixedly installed on the frame. It is connected to the pressure forming execution unit (300), the feeding assembly (200), the discharging assembly (400), and the electrical control cabinet (500) to ensure that the forming equipment accurately processes the glass components according to the preset program. The feeding assembly (200) is located on the right side of the pressure forming execution unit (300), fixed to the outer right wall of the forming chamber (350), and the lower edge of the feeding gate is flush with the processing station of the forming chamber (350). It is used to feed the assembly of the mold and the glass preform into the forming chamber (350). The feeding assembly (200) has two feeding gates. The two feeding gates have the same structure and are simple. Sealing strips are provided on the slide rails on both sides of the feeding gates. When the feeding gates are kept closed, the oxygen-free environment of the forming chamber (350) can be guaranteed. When the first feeding gate mechanism (230) is opened, a large amount of nitrogen gas will be sprayed into the feeding chamber (250) to prevent air from entering the feeding chamber. When the second feeding gate is opened, it enters the forming chamber (350), thereby protecting the oxygen-free environment of the forming chamber (350) from being damaged, and thus preventing the glass preform from oxidizing at high temperature. The pressure forming execution unit (300) is used for multi-station transfer and processing of the assembly of glass preforms and molds. The pressure forming execution unit (300) includes a general molding mechanism (310), a molding station (320), a cooling mechanism (330), a material transfer mechanism (340), and a forming chamber (350). Preheating station 1, preheating station 2, preheating station 3, annealing station 1 and annealing station 2 are called the general molding mechanism (310), and cooling station 1 and cooling station 2 are called the cooling mechanism (330). The eight stations are arranged in a linear sequence. Nitrogen gas is continuously filled into the forming chamber (350) during the processing. The amount of nitrogen gas filled is adjusted in real time according to the vacuum degree inside the forming chamber (350). The general molding mechanism (310) and molding station (320) are equipped with a first infrared heating tube (317E) and a second infrared heating tube (328D). The first infrared heating tube (317E) is symmetrically arranged on both sides of the first upper cooling plate (317B) to uniformly heat the upper and lower mold bases, glass preforms, and the assembly of the mold. The temperature control accuracy of a single first infrared heating tube (317E) can reach ±1℃. The first upper mold base (317C) is driven by a motor to move the first infrared heating tube (317E) downward, thereby completing the non-contact heating of the upper and lower mold bases, glass preforms, and the assembly of the mold. The first infrared heating tube (317E) can quickly heat the mold and preform to the preset temperature and heat them evenly. The molding station (320) is also equipped with an ultrasonic vibration element (328G) on the lower cooling plate, which works in conjunction with the infrared heating to process the preform. When the heating reaches the softening point, the ultrasonic vibration element (328G) is activated simultaneously. G), by using vibration energy to reduce the viscosity of glass, the molding pressure can be reduced and higher product quality can be obtained; the molding station (320) and the annealing station are respectively equipped with pressure sensing elements (328H) below the lower cooling plate. During the molding process, when the connecting shaft enters and exits the molding chamber (350), due to the frictional resistance between the sealing ring and the connecting shaft, the actual pressure of the second upper mold base (328B) on the glass preform and the mold assembly may not be able to accurately reach the preset value; for this reason, pressure sensing elements (328H) are set to monitor the pressure changes in real time and feed the data back to the control box (100) so as to make timely motion control and ensure pressure accuracy; in addition, considering that the working pressure of the molding station (320) and the annealing station is large, stress concentration is likely to occur inside the glass preform, which may lead to defects such as cracks. Therefore, the pressure must be continuously monitored and the pressure value must be strictly prevented from exceeding or falling below the process requirements to ensure the molding quality and process stability of the product; Multiple nitrogen filling ports are provided on the outside of the forming chamber (350) to allow sufficient nitrogen to be filled into the forming chamber (350), thereby preventing the glass preform and molding components from oxidizing at high temperatures. Cooling water channels are provided on the outer side plate of the forming chamber (350), and a mica plate is provided in the middle of the outer wall of the forming chamber to prevent the temperature from being too high, which could damage the surrounding auxiliary components, thereby shortening their lifespan or causing high-temperature failure. The material transfer mechanism (340) is horizontally arranged on the rear side of the eight stations. The rotary motor (341) is connected to the gear, which is fixed to the material transfer shaft. The rotary motor (341) and the telescopic electric cylinder (343) work together to realize the 90-degree flipping motion and linear motion of the shift fork, so that the glass preform and the mold assembly are transferred to the next station for further processing after the glass preform and the mold are processed in the previous station. The discharge assembly (400) is similar in structure to the feed assembly (200), located on the left side of the molding machine, and fixedly installed on the outer left wall of the forming chamber (350). It is used to push the glass preforms that have been processed and sent out of the pressure forming execution unit (300) to the docking platform (450) for the workers or robotic arms to pick up.

2. The full-electric driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mould pressing apparatus according to claim 1, characterized in that : The control box (100) includes a warning light (110), a housing (120), a human-machine interface (130), adjustment buttons (140), a start button (150), a stop button (160), an emergency stop button (170), a temperature controller (180), and a support cantilever (190). The warning light (110) flashes to alert the operator when the equipment malfunctions or needs to be shut down for maintenance, preventing accidents and losses caused by misoperation. The human-machine interface (130) displays parameters such as temperature, pressure, molding time, and molding speed, allowing for timely monitoring and adjustment to ensure normal operation of the equipment. The housing (120) is used to install the display screen, various control buttons, temperature controller (180) and warning light (110); the control buttons include adjustment button (140), start button (150), stop button (160) and emergency stop button (170).

3. The full-electric driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing apparatus of claim 1, wherein : The feeding assembly (200) includes a feeding mechanism (210), a pushing mechanism (220), a first feeding gate mechanism (230), a second feeding gate mechanism (240), and a feeding chamber (250); The feeding mechanism (210) includes a feeding module (211), a tray (212), a connecting block (213), a feeding photoelectric sensor (214), a feeding photoelectric sensor plate (215), and a hydraulic buffer (216). The operator or robotic arm places the assembly of the mold and preform on the tray (212). The tray (212) has a passage for connecting a vacuum generator to create a vacuum atmosphere around the assembly. In addition, the tray has a circular groove design to prevent the assembly from shifting or falling off when it moves with the feeding module (211). The feeding module (211) sends the assembly of the preform and mold to the first feeding gate mechanism (230). The feeding photoelectric sensor plate (215) scans the feeding photoelectric sensor (214), transmits the sensed signal to the control box (100), and feeds back to the module to stop the operation. After the first feeding gate is opened, nitrogen is filled into the feeding chamber (250) to prevent air from entering the feeding chamber. The preform (250) enters the forming chamber (350), and the feeding module (211) moves further to the straight position of the push block (225) of the pusher mechanism (220); at this time, the pusher mechanism (220) moves to push the assembly of the preform and the mold to the front of the second feeding gate mechanism (240), the feeding module (211) resets, the first feeding gate mechanism (230) closes, and then the second feeding gate mechanism (240) opens, and the pusher mechanism (220)... Continue the operation, push the assembly into the preheating station of the forming chamber (350) at the middle position of the first lower mold base (318A), the pusher mechanism (220) resets, and then the second feeding gate mechanism (240) closes; the pusher mechanism (220) includes a pusher module (221), a side pusher connecting column (222), a reinforcing rib (223), a side pusher shaft (224), a pusher block (225), a pusher photoelectric sensor (226), and a pusher photoelectric sensor sheet (227); The feeding chamber (250) creates a sealed space before the preform and mold assembly is formed in the forming chamber (350) to prevent air from entering the forming chamber (350). A viewing window is provided on the rear side of the chamber for timely observation of the internal condition of the feeding chamber (250).

4. The all-electric, driven, ultrasonic vibration-infrared heating energy field assisted, multi-station, precision glass mold pressing apparatus of claim 1, wherein : The pressure forming execution unit (300) is arranged in the forming chamber (350) and has eight stations, which can be divided into a general molding mechanism (310), a molding station (320), and a cooling mechanism (330). The general molding mechanism (310) includes a preheating station 1, a preheating station 2, a preheating station 3, an annealing station 1, and an annealing station 2. The cooling mechanism (330) includes a cooling station 1 and a cooling station 2. The driving mechanism and support mechanism of the eight stations are located outside the forming chamber (350). The pressing and forming process of the preform is carried out in the forming chamber (350). The preheating station has three stations for heating the preform and mold step by step, which is highly efficient. After reaching the preset temperature, the molding station (320) presses and shapes the parts. After pressing, the parts need to be annealed to eliminate internal stress and improve product quality. The upper and lower cooling plates of the cooling station are filled with cooling water to cool the assembly. After processing, the parts are sent out of the forming chamber (350) by the material transfer mechanism (340). During the start-up of the molding equipment, the forming chamber (350) is continuously filled with nitrogen to keep the interior in an oxygen-free environment. The material transfer mechanism (340) is arranged horizontally on the rear side of the eight stations. It is used to transfer the assembly to the next station for further processing after the assembly has completed the processing of the previous station. After processing is completed, the assembly is transferred out of the forming chamber (350).

5. The all-electric drive ultrasonic vibration-infrared heating energy field assisted multi-station precision glass press molding apparatus of claim 4, wherein : The general molding mechanism includes a first motor (311), a first electric cylinder (312), a first buckle (313), a first slider (314), a first guide rail (315), a first urethane rubber (316), an upper heating mechanism (317), and a lower heating mechanism (318); The upper heating mechanism (317) includes a first water pipe (317A), a first upper cooling plate (317B), a first upper mold base (317C), a first thermocouple (317D), and a first infrared heating tube (317E); The lower heating mechanism (318) includes a first lower mold base (318A), a first lower cooling plate (318B), a pad (318C), and a first base plate (318D); the heating temperatures of preheating station one, preheating station two, and preheating station three increase sequentially in order to increase heating efficiency and reach the softening point of the preform at a faster speed; The use of a first snap-fit ​​(313) with a floating joint clearance avoids assembly difficulties caused by errors. Water channels are provided in the first upper cooling plate (317B) and the first lower cooling plate (318B). A hollow design is used above the first upper mold base (317C) and below the first lower mold base (318A) to prevent heat conduction from the upper and lower mold bases from damaging other components. The first infrared heating tube (317E) is fixed to the front and rear sides of the first upper cooling plate (317B) to uniformly heat the first upper mold base (317C), the assembly, and the first lower mold base (318A). The thermocouple is installed inside the upper and lower mold bases for real-time temperature monitoring. The annealing station is similar to the preheating station. The infrared heating tubes are arranged symmetrically on the front and back sides of the first upper cooling plate (317B) as the first infrared heating tube (317E) to heat the upper and lower mold bases and the assembly of the glass preform and the mold. The difference is that a pressure sensing element (328H) is set under the lower cooling plate to monitor the output force of the first electric cylinder (312) in real time and feed it back to the control box (100) in a timely manner. The control box (100) feeds back to the first electric cylinder (312) to achieve closed-loop regulation. Since annealing is required to eliminate stress, the pressure is required to be relatively strict to prevent it from being too high or too low, which would affect the forming effect of the glass preform.

6. The all-electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass molding equipment as described in claim 4, characterized in that... : The molding station (320) includes a second motor (321), a reducer (322), a second electric cylinder (323), a second buckle (324), a second slider (325), a second guide rail (326), a second urethane rubber (327), a second upper cooling plate (328A), a second upper mold base (328B), a second thermocouple (328C), a second infrared heating tube (328D), a second lower mold base (328E), an ultrasonic vibration element (328G), a second lower cooling plate (328F), a pressure sensing element (328H), and a second base plate (328I). Water channels are provided in the second upper cooling plate (328A) and the second lower cooling plate (328F). Furthermore, the upper part of the second upper mold base (328B) and the lower part of the second lower mold base (328E) are designed with a hollow structure to prevent heat conduction from the upper and lower mold bases from affecting other components. Damage to components can cause unnecessary trouble. During the molding process, when the connecting shaft enters and exits the molding chamber (350), the frictional resistance between the sealing ring and the connecting shaft may cause the actual pressure of the second upper mold base (328B) on the glass preform and the mold assembly to be difficult to accurately reach the preset value. Compared with other stations, the second infrared heating tube (328D) of the molding station (320) is longer in total length. It is symmetrically arranged on the front and rear sides of the second upper cooling plate (328A) to heat the upper and lower mold bases as well as the glass preform and the mold assembly. The heating efficiency is higher by using infrared heating, and the purpose is to more effectively mold the preform. The ultrasonic vibration element (328G) is installed in the lower mold base to provide a mechanical vibration field to assist the infrared heating multi-energy field molding equipment in molding the preform.

7. The all-electric, driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass press molding apparatus of claim 4, wherein : The cooling mechanism (330) includes a third motor (331), a third electric cylinder (332), a connecting shaft (333), a T-nut (334), a fixing block (335), a third upper cooling plate (336), a third water pipe (337), a third lower cooling plate (338), and a third base plate (339). The cooling mechanism (330) is relatively simple compared to other workstations. There is a circulating water channel in the upper and lower cooling plates, which lightly touches the assembly to cool it down.

8. The all-electric, driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass press molding apparatus of claim 4, wherein : The material transfer mechanism (340) includes a rotary motor (341), a gear (342), a telescopic electric cylinder (343), a support frame (344), and a shift fork (345). The material transfer mechanism (340) is located behind the eight workstations. The shift fork is placed parallel to the lower mold base at a position 3mm higher. The rotary motor (341) provides power, and the gear (342) drives the shift fork to perform a 90-degree reciprocating flipping action. The telescopic electric cylinder (343) provides power for the shift fork to perform linear motion, completing the transfer of the glass preform and the mold assembly until the processing is completed and the material is sent out of the forming chamber (350) to the discharge chamber (440).

9. The all-electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass molding equipment as described in claim 1, characterized in that... : The discharge assembly (400) includes a discharge mechanism (410), a first discharge gate mechanism (420), a second discharge gate mechanism (430), a discharge chamber (440), and a connecting platform (450); The discharge chamber (440) creates a sealed space when the assembly of the preform and the mold is pushed out of the forming chamber (350) to prevent air from entering the forming chamber (350). After the assembly is processed in the forming chamber (350), it is sent by the transfer mechanism (340) to the discharge chamber (440) and the push block in a straight line. Then the discharge mechanism (410) sends the assembly of the glass preform and the mold out of the discharge chamber (440) to the docking platform (450). When the second discharge gate mechanism (430) is opened, a large amount of nitrogen needs to be sprayed to prevent air from entering the discharge chamber (440) and thus entering the forming chamber (350), thus destroying the oxygen-free environment of the forming chamber (350).

10. The all-electric, driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass press molding apparatus of claim 9, wherein : All outer panels of the forming chamber (350) are equipped with water channels to prevent the temperature of the forming chamber (350) from getting too high. Mica plates are used for heat insulation between the outer and inner panels of the forming chamber (350), so that the outer side can reach a safe temperature and avoid unnecessary danger and damage to other components. The upper panel has four nitrogen filling holes, and the lower panel also has holes for circulating water to the lower cooling plate through cold water pipes. There are four sealed doors in total, which are also composed of three layers of plates. Each door is also equipped with cooling water channels and has a viewing window, so that the condition inside the forming chamber (350) can be observed in time.

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