High-strength energy-saving environment-friendly glass forming device

Abstract

The invention relates to the technical field of glass forming, and discloses a high-strength energy-saving environment-friendly glass forming device which comprises a base plate, a plurality of bottom plates are rotatably arranged on the outer side of the base plate around the center of the base plate, molds are placed on the bottom plates, a stand column is arranged in the middle of the base plate, a three-jaw hanging plate is arranged at the end of the stand column, and the three-jaw hanging plate is arranged in the machining direction. And a feeding mechanism, an extrusion mechanism and a demolding mechanism are sequentially arranged on the outer side of the three-jaw suspension plate. The extrusion mechanism comprises a first sliding rod connected with the three-jaw hanging plate in a sliding mode, and a flexible extrusion plate is arranged at the end, facing the mold, of the first sliding rod. By adopting the flexible extrusion plate with the middle protruding initially, frit can be evenly spread and pressed from the center to the two sides in the pressing process, and the material flow balance and pressure distribution are effectively improved, so that the thickness error of the glass brick is remarkably reduced, and the structural strength and uniformity of the product are improved.

Description

Technical Field

[0001] This invention relates to the field of glass forming technology, specifically a high-strength, energy-saving, and environmentally friendly glass forming device. Background Technology

[0002] Glass forming is a key process in glass manufacturing. Essentially, it involves placing hot, malleable glass material into a specific cavity, applying external force to fill and conform it to the mold's inner surface, and then controlling the cooling and solidification process to obtain a product of the predetermined shape and size. Among various forming methods, compression molding is widely used due to its high efficiency and suitability for manufacturing regularly shaped solid or thick-walled products, especially in the large-scale production of building materials such as glass bricks and glass sheets. This process typically utilizes the combined action of upper and lower molds and a pressure head to apply vertical pressure to the hot glass material placed in the mold cavity, causing it to flow, deform, and fill the cavity.

[0003] Currently, most pressure plates or heads used in extrusion technology are simple flat plates. During extrusion, this design, due to the flat surface of the pressure plate and the lack of an active guidance and control mechanism for the flow of the glass material, makes it difficult to achieve an ideally uniform pressure distribution on the malleable glass material. When under pressure, the flow rate and direction of the glass material easily differ in different parts, often exhibiting an uneven flow from areas of high pressure to areas of low pressure, and from areas of low resistance to areas of high resistance. This uneven flow leads to inconsistent filling of the glass material within the mold cavity, resulting in thickness deviations in different areas of the formed glass brick. This thickness error not only directly affects the product's appearance regularity and dimensional accuracy, but more seriously, it creates uneven stress distribution within the product, becoming a structural weak point and significantly reducing the overall mechanical strength, impact resistance, and long-term durability of the product. Therefore, optimizing the core pressure plate structure of existing pressing devices to improve the uniformity of pressure transmission and guide and control the flow of the glass material has become an important technical improvement direction for enhancing the quality and performance of pressed glass products such as glass bricks. Summary of the Invention

[0004] This invention provides a high-strength, energy-saving, and environmentally friendly glass forming device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-strength, energy-saving, and environmentally friendly glass forming device includes a substrate. Multiple base plates are rotatably arranged around the center of the substrate, and a mold is placed on each base plate. A column is arranged in the middle of the substrate, and a three-claw suspension plate is arranged at the end of the column. Along the processing direction, a feeding mechanism, an extrusion mechanism, and a demolding mechanism are arranged sequentially on the outside of the three-claw suspension plate.

[0007] The feeding mechanism is used to add glass raw materials in a plastic state into the mold;

[0008] The extrusion mechanism includes a first sliding rod slidably connected to the three-jaw suspension plate. A flexible extrusion plate is provided at one end of the first sliding rod facing the mold. When the flexible extrusion plate is located outside the mold, the flexible extrusion plate presents an arc-shaped structure with the middle bulging downward. When the flexible extrusion plate moves into the mold and applies pressure to the material, its bulging height decreases as the pressure increases. When the pressure reaches the predetermined extrusion pressure, the flexible extrusion plate changes to a flat state.

[0009] The demolding mechanism is used to lift the mold to a predetermined height and then lower it back down to release it onto the base plate.

[0010] As a preferred embodiment of the present invention, a first fixed plate is provided in the middle of the first sliding rod, and deflection rods are rotatably connected to both ends of the first fixed plate. A counterweight is rotatably connected to the end of the deflection rod away from the first fixed plate. The far ends of the two counterweights are rotatably connected to both ends of the flexible extrusion plate. When subjected to gravity alone, the two counterweights are close to each other and keep the flexible extrusion plate in a state of downward bulging in the middle. A first lifting device for adjusting the height of the first sliding rod is provided on the three-claw suspension plate.

[0011] As a preferred embodiment of the present invention, a clearance groove is provided at the lower surface end of the counterweight block, and a hinge is provided inside the clearance groove. The hinge connects to the end of the flexible extrusion plate. When the flexible extrusion plate is deformed into a flat state, the surface of the flexible extrusion plate is completely in contact with the bottom surface of the counterweight block.

[0012] As a preferred embodiment of the present invention, the first fixed plate is slidably connected to the first sliding rod, a support plate is provided at one end of the first sliding rod facing the mold, a pressure plate is provided on the side of the first sliding rod facing the three-jaw suspension plate, a buffer spring sleeved on the outside of the first sliding rod is provided between the pressure plate and the first fixed plate, and a retaining ring fixedly connected to the first sliding rod is provided between the pressure plate and the first fixed plate. When the retaining ring abuts against the first fixed plate, the flexible extrusion plate is in a flat state.

[0013] In a preferred embodiment of the present invention, the demolding mechanism includes a second sliding rod slidably connected to the three-jaw suspension plate. A second fixed plate is provided at one end of the second sliding rod facing the mold. L-shaped clamping plates are rotatably connected to both ends of the second fixed plate. Hooks are provided at the ends of the L-shaped clamping plates facing the mold. A snap-fit ​​groove is provided on the side of the mold to cooperate with the hooks. A clamping drive assembly for adjusting the angle between the two L-shaped clamping plates is provided in the middle of the second sliding rod. A second lifting device for adjusting the height of the second sliding rod is provided on the three-jaw suspension plate. The clamping drive assembly includes a cross push block slidably connected to the middle of the second sliding rod. One end of the cross push block facing the L-shaped clamping plate is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to the end of the L-shaped clamping plate. An ejection device for adjusting the height of the cross push block relative to the second sliding rod is provided on the second sliding rod.

[0014] As a preferred embodiment of the present invention, the feeding mechanism includes a feeding pipe disposed at the end of the three-jaw suspension plate, a feeding nozzle disposed at the end of the feeding pipe facing the mold, and a connector disposed at the end of the feeding pipe away from the mold.

[0015] As a preferred embodiment of the present invention, a support is provided on the side of the substrate, and a rotating feed belt is provided at the end of the support. The rotating feed belt is used to drive the substrate to rotate intermittently around its center.

[0016] The present invention has the following advantages:

[0017] 1. Significantly improves product uniformity and structural strength

[0018] The core technology lies in using a flexible extrusion plate that initially bulges in the center. Its working process simulates the principle of spreading pressure from the center outwards, guiding the glass material to flow evenly to both sides of the mold in the initial extrusion stage. This effectively avoids the uneven material flow and stress concentration problems caused by edge resistance in traditional flat extrusion plates. Combined with subsequent complete flattening and uniform compaction, this ensures consistent pressure across all parts of the glass preform, thereby greatly reducing thickness errors in the finished product and obtaining high-strength glass bricks with uniform internal stress distribution.

[0019] 2. Optimize demolding performance to prevent surface damage.

[0020] During the lifting and return stroke, the flexible extrusion plate achieves a separation action of "both sides first lifting up, then the whole plate detaching" through a counterweight linkage mechanism, effectively breaking any potential vacuum adhesion or high-temperature bonding. Combined with the high-temperature resistant ceramic coating on the mold and extrusion plate surfaces, scratches or adhesion defects on the glass brick surface are fundamentally avoided, ensuring product surface quality and smooth demolding.

[0021] 3. Achieve compact layout and energy-saving production

[0022] The circular production line design, featuring a fixed central workstation and rotating peripheral molds, efficiently integrates the feeding, extrusion, and demolding processes, significantly reducing equipment footprint. Intermittent indexing rotation, precisely synchronized with each workstation, concentrates energy on efficient processing steps, reducing idling and transmission energy consumption, aligning with green manufacturing principles.

[0023] 4. Stable and reliable operation, suitable for continuous automated production.

[0024] The device boasts high overall rigidity, with key components made of high-performance heat-resistant alloys and surface-strengthened to withstand high-temperature cyclic operation. All mechanisms are coordinated by a control system, enabling fully automated cyclic operation. It offers excellent stability and low maintenance requirements, making it ideal for large-scale, high-efficiency continuous production of products such as glass bricks. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a high-strength, energy-saving, and environmentally friendly glass forming device.

[0027] Figure 2 This is a front view of a high-strength, energy-saving, and environmentally friendly glass forming device.

[0028] Figure 3 This is a schematic diagram of the rotating feed belt in a high-strength, energy-saving, and environmentally friendly glass forming device.

[0029] Figure 4 This is a schematic diagram of the three-claw suspension plate in a high-strength, energy-saving, and environmentally friendly glass forming device.

[0030] Figure 5 This is a schematic diagram of the feeding mechanism in a high-strength, energy-saving, and environmentally friendly glass forming device.

[0031] Figure 6 This is a schematic diagram of the demolding mechanism in a high-strength, energy-saving, and environmentally friendly glass forming device.

[0032] Figure 7 This is a schematic diagram of the structure of a flexible extrusion plate in a high-strength, energy-saving, and environmentally friendly glass forming device when the middle part of the plate is raised.

[0033] Figure 8 This is a schematic diagram of the structure of a counterweight block and a flexible extrusion plate in a high-strength, energy-saving, and environmentally friendly glass forming device.

[0034] Figure 9 This is a schematic diagram of the structure of a flexible extrusion plate in a flat state in a high-strength, energy-saving and environmentally friendly glass forming device.

[0035] In the diagram: 1. Base plate; 2. Support; 3. Rotary feed belt; 4. Base plate; 5. Mold; 6. Snap-fit ​​groove; 7. Column; 8. Three-jaw suspension plate; 9. Extrusion mechanism; 10. Feeding mechanism; 11. Demolding mechanism; 12. Feed nozzle; 13. Feed pipe; 14. Connector; 15. Second fixing plate; 16. L-shaped clamping plate; 17. Hook; 18. Clamping drive assembly; 19. Second sliding rod; 20. Second lifting device; 21. Cross push block; 22. Connecting rod; 23. Ejection device; 24. First fixing plate; 25. Deflection rod; 26. Counterweight; 27. Flexible extrusion plate; 28. First sliding rod; 29. ​​Retaining ring; 30. Pressure plate; 31. Support plate; 32. First lifting device; 33. Relief groove; 34. Hinge; 35. Buffer spring. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0037] In one embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 7 A high-strength, energy-saving, and environmentally friendly glass forming device.

[0038] In one embodiment, a base plate 1 is included, serving as the foundation platform and mounting base for the entire device. The base plate 1 is typically a large, circular or polygonal plate structure made of high-strength metal, possessing sufficient rigidity to support all moving parts and suppress vibrations during operation. The interior or lower space of the base plate 1 can be used to integrate auxiliary systems such as electrical control cabinets, hydraulic power units, and cooling pipes, resulting in a compact overall layout and simple external piping. Multiple base plates 4 are angularly distributed around the central axis on the outer side of the upper surface of the base plate 1. These base plates 4 are horizontally positioned and driven by a rotating feed belt 3. More specifically, a bracket 2 is fixedly mounted on the outer edge of the base plate 1, with its upper end inclined outwards or extending horizontally to support the rotating feed belt 3. The rotating feed belt 3 is typically a ring chain, a synchronous belt, or a precision indexing turntable mechanism driven by a servo motor. Each base plate 4 is fixedly mounted on the upper surface of the rotating feed belt 3. A drive system (not shown in the figure, such as a servo motor with a reducer) controls the rotating feed belt 3 to perform precise intermittent rotational motion. Each rotation stops at a position precisely aligned with a processing station by a base plate 4, with the rotation angle equal to the angle between two adjacent base plates 4 (e.g., 60° rotation per station for six stations). The top of each base plate 4 is used to place a mold 5. The mold 5 is preferably a U-shaped (i.e., square frame) structure, running vertically through the base. The cross-sectional shape of the mold 5's inner cavity determines the planar shape of the glass block, typically a square or rectangle. The lower edge of the mold 5 rests on the base plate 4, thus forming a molding cavity that is open at the top and closed at the bottom.

[0039] A column 7 is vertically fixed at the geometric center of the substrate 1. The column 7 has sufficient strength and stability. A three-jaw suspension plate 8 is fixedly connected to the top of the column 7. The three-jaw suspension plate 8 is formed by splicing and fixing three radially extending cantilever plates at the center. These three cantilever plates correspond to three core stations in sequence along the processing direction of the glass raw material on the circular production line (i.e., the intermittent rotation direction of the rotating feed belt 3). Below the far ends of these three cantilever plates, the feeding mechanism 10, the extrusion mechanism 9, and the demolding mechanism 11 are respectively arranged. This centrally suspended layout makes the positions of each actuator fixed, while the base plate 4 carrying the mold 5 rotates through these stations in sequence to complete the "feeding-extrusion-demolding" cycle, which greatly saves the equipment's planar space and improves space utilization. The feeding mechanism 10 is installed at the cantilever end of the three-jaw suspension plate 8 corresponding to the feeding station. Its main function is to accurately inject a quantitative amount of glass raw material in a plastic state (within a suitable viscosity range) into the center of the empty mold 5 that stops at this station. The demolding mechanism 11 is installed at the cantilever end of the three-jaw suspension plate 8 corresponding to the demolding station, and is responsible for removing the cooled and molded glass brick from the mold 5.

[0040] The extrusion mechanism 9 is one of the key innovations of this invention. It is installed at the cantilever end of the three-jaw suspension plate 8 corresponding to the extrusion station. The core task of the extrusion mechanism 9 is to apply vertical pressure to the glass material in the mold 5 and press it into a glass brick blank with uniform thickness and density. It includes a vertically arranged first sliding rod 28. The first sliding rod 28 is slidably connected to the cantilever of the three-jaw suspension plate 8 through a linear bearing or a sliding sleeve to ensure that it can move smoothly in the vertical direction. The first lifting device 32 drives the first sliding rod 28 to move up and down. The first lifting device 32 is fixedly installed on the cantilever of the three-jaw suspension plate 8 and can be a servo electric cylinder, a precision hydraulic cylinder, or a pneumatic cylinder. The end of its piston rod is connected to the upper end of the first sliding rod 28 through a horizontal plate (not labeled in the figure). By controlling the extension of the piston rod of the first lifting device 32, the first sliding rod 28 can be driven to apply downward pressure; conversely, it will drive it to return upward. At the lower end of the first sliding rod 28, a flexible extrusion plate 27 is connected.

[0041] The flexible extrusion plate 27 is the core component for achieving uniform pressure. The flexible extrusion plate 27 is not a rigid flat plate; its unique feature lies in its initial free state. When the extrusion mechanism 9 is in a high position and not in operation, the flexible extrusion plate 27, under its own structure and the effect of counterweight, presents an arc-shaped structure that bulges downwards from the center, "similar to a miniature arch." When it is driven downwards and begins to contact the glass material piled in the center of the mold 5, this arc-shaped structure will first contact the top center point of the glass material. As the flexible extrusion plate 27 continues to descend, the pressure between the flexible extrusion plate 27 and the glass material gradually increases, causing the flexible extrusion plate 27 to gradually transform from a bulging state to a flat state. When the upper surface of the glass material is flattened and the overall pressure reaches the set extrusion pressure, the flexible extrusion plate 27 is in a flat state.

[0042] The flexible extrusion plate 27 is made of high-performance nickel-based high-temperature elastic alloys, such as Inconel 718 and Haynes 242, after special heat treatment. This material possesses excellent high-temperature mechanical properties and fatigue life: it can work stably for a long time in the glass forming temperature environment of 650~800℃, and can withstand temperatures above 1000℃ for short periods; its elastic modulus changes little within the working temperature range, with no significant plastic decay; its yield strength can reach over 1000MPa; and its elastic limit strain is small (≤0.5%), meaning that it can almost completely rebound during repeated deformation without permanent deformation; through optimized design, it can withstand more than one million cycles of "bulging-flattening-compacting" deformation without fatigue crack initiation. In addition, the working surface of the flexible extrusion plate 27, as well as the upper surface of the base plate 4 and the inner wall of the mold 5 that it contacts, can be surface strengthened, for example, by first performing nitriding treatment to improve the hardness of the substrate, and then spraying a layer of high-temperature resistant ceramic coating, such as Al2O3 or Cr2O3. This coating features high hardness, high temperature resistance, and strong chemical inertness. It can effectively isolate the molten glass, prevent the glass from sticking to the metal surface, avoid scratches or adhesion defects on the surface of the formed glass brick, and ensure the surface smoothness of the product.

[0043] In one instance of this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 To control the shape transformation of the flexible extrusion plate 27 and provide stable compaction pressure, a precise mechanical linkage system is set up. A first fixed plate 24 is provided in the middle of the first sliding rod 28. The first fixed plate 24 and the first sliding rod 28 are slidably connected (e.g., through a sliding hole or linear bearing), allowing the first fixed plate 24 to slide independently relative to the first sliding rod 28 within a certain range. At both ends of the first fixed plate 24 (along the glass flow direction), a deflector rod 25 is rotatably connected via a rotating shaft. The lower end of each deflector rod 25 is connected to a counterweight 26 via a rotating shaft. The counterweight 26 is a cube or block with considerable mass. The key is the position of the connection point: the connection point between the deflector rod 25 and the counterweight 26 is located on the side of the upper surface of the counterweight 26 closer to the central axis of the first fixed plate 24. This eccentric connection design allows the two counterweights 26 to rotate towards each other due to gravitational torque under natural conditions under gravity alone, until their relative inner walls are pressed together. At this time, the two deflection rods 25 are roughly vertical or slightly open. Each counterweight 26 has a relief groove 33 at the end furthest from the central axis of the first fixed plate 24. A hinge 34 is installed in the relief groove 33, through which the corresponding end of the flexible compression plate 27 is rotatably connected to the counterweight 26.

[0044] To ensure a smooth extrusion process and precise control of the final pressure, the following structure is also provided: A pressure plate 30 is fixedly mounted on the first sliding rod 28, above the first fixed plate 24. A buffer spring 35 is fitted around the first sliding rod 28 between the pressure plate 30 and the first fixed plate 24. A retaining ring 29 is also fixedly mounted on the first sliding rod 28, within the area occupied by the buffer spring 35. When the first sliding rod 28 moves downward relative to the first fixed plate 24 to its limit position, the retaining ring 29 will contact the upper surface of the first fixed plate 24. At the lower end of the first sliding rod 28, below the first fixed plate 24, a support plate 31 is also fixedly mounted. When the first sliding rod 28 moves upward back, the support plate 31 will contact and lift the first fixed plate 24.

[0045] When the extrusion mechanism 9 is not in operation and is "under gravity only," the two closely spaced counterweights 26 slightly lift both ends of the flexible extrusion plate 27 upwards via hinges 34. Simultaneously, due to the elasticity of the flexible plate itself and the lack of constraint in the middle, the middle section naturally droops downwards, thus forming the initial raised arc shape. Designed so that when the flexible extrusion plate 27 is completely flattened, the entire lower surface of the two counterweights 26 will perfectly fit against the upper surface of the flexible extrusion plate 27. This ensures that subsequent pressure can be evenly transmitted to the flexible extrusion plate 27 through the large contact area of ​​the counterweights 26, rather than just through a single point of hinge 34.

[0046] In one instance of this embodiment, please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 The demolding mechanism 11 includes a vertically arranged second sliding rod 19. The second sliding rod 19 is also slidably connected to the cantilever of the three-jaw suspension plate 8 via linear bearings, etc. Its lifting is driven by a second lifting device 20, the installation and connection of which is similar to that of the first lifting device 32. A horizontal second fixed plate 15 is fixedly connected to the lower end of the second sliding rod 19. At both ends of the second fixed plate 15, an L-shaped clamping plate 16 is rotatably connected via a pivot. Each L-shaped clamping plate 16 is approximately L-shaped, with both its upper and lower arms extending away from the center of the second fixed plate 15. At the end of the lower arm, an inwardly curved hook 17 is provided. Correspondingly, a snap-fit ​​groove 6 matching the shape of the hook 17 is pre-machined on the upper part of the outer wall of each mold 5. A clamping drive assembly 18 is provided on the upper surface of the second fixed plate 15, which can adjust the included angle of the two L-shaped clamping plates 16.

[0047] The clamping drive assembly 18 controls the rotation of the two L-shaped clamping plates 16, thereby enabling the hook 17 to clamp and release the mold 5. This assembly mainly includes a cross push block 21 whose middle section is slidably connected to the second sliding rod 19 and can move slightly along the axial direction of the second sliding rod 19. The two horizontal ends of the cross push block 21 are rotatably connected to the upper end of a connecting rod 22 via a pivot, and the lower end of the connecting rod 22 is rotatably connected to the upper arm ends of the two L-shaped clamping plates 16 via a pivot. This forms a double rocker mechanism. An ejection device 23 is installed on or near the second fixed plate 15. The ejection device 23 can be a small electric push rod, a micro cylinder, or a linear motor. Its actuating end is connected to the cross push block 21. By driving the cross push block 21 to make a small lifting and lowering movement along the second sliding rod 19, the connecting rod 22 can drive the two L-shaped clamping plates 16 to rotate synchronously around their connection point with the second fixed plate 15, realizing the opening of the hook 17 to release the mold 5 and its closing to engage with the snap-fit ​​groove 6 of the mold 5.

[0048] In one instance of this embodiment, please refer to Figure 1 , Figure 4 and Figure 5 The feeding mechanism 10 includes a feeding pipe 13. The feeding pipe 13 is preferably vertically fixed on a three-jaw suspension plate 8. A connector 14 is provided at its upper part for connecting to a glass furnace or feeder (not shown in the figure) via an insulated pipeline, ensuring a continuous or intermittent supply of molten glass. A feeding nozzle 12 is provided at the lower end of the feeding pipe 13. The feeding nozzle 12 is typically designed with a valve or shearing device (such as a needle valve, scissors, etc., which are conventional technologies in the field and are not detailed in the figure) to achieve precise metering and cutting of the glass droplets. To prevent the glass material from cooling too quickly during transport and affecting its flowability, heating devices (such as resistance heating jackets, induction coils, etc.) are usually integrated into the outer wall or interior of the feeding pipe 13 and the feeding nozzle 12 to insulate the pipeline and keep the glass raw material in a plastic state. When the rotating feed belt 3 stops and an empty mold 5 is located directly below the feed nozzle 12, the feed nozzle 12 opens and injects a predetermined mass of glass droplets into the center of the cavity of the mold 5, that is, the middle of the upper surface of the base plate 4.

[0049] The working process of this high-strength, energy-saving, and environmentally friendly glass forming device is as follows:

[0050] Step 1: System Initialization and Feeding

[0051] Connect the entire device to the automated glass brick production line. Start the control system, and the rotary feed belt 3 begins operation. When an empty mold 5 rotates with its bottom plate 4 to the feeding station and stops precisely, the feed nozzle 12 of the feeding mechanism 10 actuates, injecting a predetermined mass of hot glass material in a plastic state into the center of the cavity of the mold 5. After feeding is completed, the rotary feed belt 3 starts again.

[0052] Step 2: Flexible extrusion molding

[0053] The mold 5, carrying the glass material, rotates to the extrusion station and stops. At this time, the flexible extrusion plate 27 is in its initial raised state, located directly above the mold 5.

[0054] 1. Pressing Contact and Initial Flow: The first lifting device 32 is activated, pushing the first sliding rod 28 and the entire extrusion mechanism 9 at its lower end to descend at a uniform speed. The raised portion in the middle of the flexible extrusion plate 27 first contacts the top center of the glass slurry. Due to the small contact area and high pressure, the raised "nose" easily cuts into the slurry and, during the continuous pressing process, pushes and spreads the glass slurry in the center to both sides of the mold 5. This process effectively breaks the stress concentration formed by the initial accumulation of the slurry and guides the glass slurry to flow relatively uniformly radially from the center to both sides.

[0055] 2. Form Transformation and Uniform Pressure Application: As the downward pressure continues, the glass material fills the corners of the mold 5, increasing the contact area between the flexible extrusion plate 27 and the glass material, thus increasing resistance. The bulge height in the middle of the flexible extrusion plate 27 begins to decrease due to compression, while its two ends experience upward reaction forces. Through the hinge 34, the two counterweights 26 are forced to overcome the gravitational torque and begin to rotate outward and separate. The buffer spring 35 begins to compress at this stage, absorbing some of the impact and ensuring a gradual increase in pressure. The first sliding rod 28 continues to move downward. When the retaining ring 29 contacts the upper surface of the first fixed plate 24, the downward pressure is directly transmitted to the counterweights 26 through the retaining ring 29, the first fixed plate 24, and the deflection rod 25. At this time, the counterweights 26 have rotated to a position where their lower surface is basically horizontal.

[0056] 3. Final Compaction and Pressure Holding: Under the continuous action of the driving force, the flexible extrusion plate 27 is completely flattened and becomes straight. The lower surfaces of the two counterweights 26 are completely in contact with the upper surface of the flexible extrusion plate 27. At this time, the glass material has completely filled the cavity of mold 5, and the upper surface is flattened. The first lifting device 32 can maintain pressure holding for a period of time to eliminate air bubbles inside the glass and promote its densification. In this final compaction stage, the pressure is evenly distributed over a large area on the flexible extrusion plate 27 through the counterweights 26, and then transmitted to the glass brick blank, ensuring that the pressure on all parts of the blank is consistent, thereby obtaining a semi-finished product with extremely small thickness tolerance.

[0057] 4. Return Disengagement: After the pressure holding period, the first lifting device 32 moves in the opposite direction, driving the first sliding rod 28 upward. Initially, the counterweight 26 tends to move inward under gravity, but due to the slight adhesion or vacuum that may exist between the flexible extrusion plate 27 and the upper surface of the glass brick, the upward movement will first drive the first fixed plate 24 and the entire counterweight 26 and flexible extrusion plate 27 to rise synchronously a short distance through the support plate 31, so that the flexible extrusion plate 27 is completely separated from the glass brick. As it continues to rise, the counterweight 26 quickly closes inward under gravity, pulling the two ends of the flexible extrusion plate 27 upward, restoring it from a flat state to its initial arc shape with a raised center. This process of "the center making the final contact and the sides separating first" further avoids the adhesion of the flexible extrusion plate 27 to the surface of the high-temperature glass brick. After the extrusion mechanism 9 is fully raised to the high position, the rotating feed belt 3 starts, sending the pressed glass brick blank to the next station. During the transportation process, a cooling fan box (not shown in the figure) can be set up to provide initial forced cooling for the glass bricks.

[0058] Step 3: Demolding and Removal

[0059] The glass bricks, which have undergone initial cooling and shaping, are rotated along with mold 5 to the demolding station and then stopped.

[0060] 1. Lowering and clamping preparation: The second lifting device 20 drives the second sliding rod 19 to descend, so that the hooks 17 of the two L-shaped clamping plates 16 are lowered to a position slightly below the snap-fit ​​groove 6 of the mold 5.

[0061] 2. Clamping mold 5: The ejector device 23 is activated, pushing the cross pusher block 21 to move, and through the connecting rod 22, the two L-shaped clamping plates 16 rotate inward until the hook 17 is embedded and clamps the buckle grooves 6 on both sides of the mold 5.

[0062] 3. Lifting Mold 5: The second lifting device 20 moves in the opposite direction, lifting the second sliding rod 19. Through the L-shaped clamping plate 16, the mold 5 is lifted upward as a whole, so that its lower edge is separated from the base plate 4. At this time, the formed glass brick will be lifted along with the mold 5 due to friction with the inner wall of the mold 5 and possible slight shrinkage and jamming, while the base plate 4 remains stationary, thus exposing a space under the glass brick.

[0063] 4. Product Removal: When mold 5 is raised to a sufficient height (e.g., to fully expose the bottom of the glass brick), a robotic arm or conveyor belt on the external assembly line (a subsequent device, not shown in the figure) can move laterally into the space, reaching directly beneath the glass brick. Subsequently, a tapping mechanism (such as a small cylinder-driven tapping rod) can gently tap the outside of mold 5, causing vibration that loosens the glass brick from the inner wall of mold 5. The glass brick then falls vertically onto the picking device. The picking device carries the formed glass brick out and sends it to the subsequent annealing furnace or inspection and packaging process.

[0064] 5. Reset: After brick removal, the second lifting device 20 drives the second sliding rod 19 to descend again, accurately placing the empty mold 5 back into its original position on the bottom plate 4. Then, the ejection device 23 reverses its action, pulling the cross push block 21 to rotate the L-shaped clamping plate 16 outward, causing the hook 17 to disengage from the snap-fit ​​slot 6 and releasing the mold 5. Finally, the second lifting device 20 raises the entire demolding mechanism 11 to its highest position, preparing for the next work cycle.

[0065] Step 4: Continuous Production

[0066] The actions of the three stations are coordinated and controlled by the central controller, strictly synchronized with the intermittent indexing movement of the rotating feed belt 3. Each time the rotating feed belt 3 rotates one station and stops, the three stations simultaneously perform their respective feeding, extrusion, or demolding operations. This cycle repeats continuously, achieving fully automated, continuous, circular production line production of glass bricks. After demolding, the empty mold 5 returns to the feeding station with the rotating production line, starting a new molding cycle.

[0067] This invention provides a high-strength, energy-saving, and environmentally friendly glass forming device. By employing a flexible extrusion plate 27 with an initial central bulge, the glass material can be evenly spread from the center to both sides during the pressing process, effectively improving the material flow balance and pressure distribution. This significantly reduces the thickness error of the glass bricks and enhances the structural strength and uniformity of the product. The flexible extrusion plate 27, combined with the linked counterweight 26, achieves the action of "separation of both sides first" during demolding. In addition, the high-temperature resistant ceramic coating effectively prevents surface adhesion and damage, ensuring smooth demolding and the surface quality of the finished product. The overall design adopts a compact layout with a central column 7 fixed and a circular rotating mold 5, integrating the feeding, extrusion, and demolding processes. This achieves efficient and continuous automated production, saving floor space and energy consumption. The device is stable and reliable in operation and suitable for large-scale industrial manufacturing.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A high-strength, energy-saving, and environmentally friendly glass forming apparatus, comprising a substrate, wherein a plurality of base plates are rotatably disposed around the center of the substrate, and a mold is placed on each of the base plates, characterized in that, A column is provided in the middle of the substrate, and a three-jaw suspension plate is provided at the end of the column. Along the processing direction, a feeding mechanism, an extrusion mechanism and a demolding mechanism are arranged in sequence on the outside of the three-jaw suspension plate. The feeding mechanism is used to add glass raw materials in a plastic state into the mold; The extrusion mechanism includes a first sliding rod slidably connected to the three-jaw suspension plate. A flexible extrusion plate is provided at one end of the first sliding rod facing the mold. When the flexible extrusion plate is located outside the mold, the flexible extrusion plate presents an arc-shaped structure with the middle bulging downward. When the flexible extrusion plate moves into the mold and applies pressure to the material, its bulging height decreases as the pressure increases. When the pressure reaches the predetermined extrusion pressure, the flexible extrusion plate changes to a flat state. The demolding mechanism is used to lift the mold to a predetermined height and then lower it back down to release it onto the base plate.

2. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 1, characterized in that, A first fixed plate is provided in the middle of the first sliding rod. Deflection rods are rotatably connected to both ends of the first fixed plate. A counterweight is rotatably connected to the end of the deflection rod away from the first fixed plate. The far ends of the two counterweights are rotatably connected to both ends of the flexible extrusion plate. When subjected to gravity alone, the two counterweights are close to each other and keep the flexible extrusion plate in a state of downward bulging in the middle. A first lifting device for adjusting the height of the first sliding rod is provided on the three-claw suspension plate.

3. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 2, characterized in that, The lower surface of the counterweight is provided with a clearance groove, and a hinge is provided inside the clearance groove. The hinge connects to the end of the flexible extrusion plate. When the flexible extrusion plate is deformed into a flat state, the surface of the flexible extrusion plate is completely in contact with the bottom surface of the counterweight.

4. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 2, characterized in that, The first fixed plate is slidably connected to the first sliding rod. A support plate is provided at one end of the first sliding rod facing the mold, and a pressure plate is provided on the side of the first sliding rod facing the three-jaw suspension plate. A buffer spring sleeved on the outside of the first sliding rod is provided between the pressure plate and the first fixed plate. A retaining ring fixedly connected to the first sliding rod is provided between the pressure plate and the first fixed plate. When the retaining ring abuts against the first fixed plate, the flexible extrusion plate is in a flat state.

5. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 1, characterized in that, The demolding mechanism includes a second sliding rod slidably connected to the three-jaw suspension plate. A second fixed plate is provided at one end of the second sliding rod facing the mold. L-shaped clamping plates are rotatably connected to both ends of the second fixed plate. Hooks are provided at the ends of the L-shaped clamping plates facing the mold. The side of the mold is provided with a snap-fit ​​groove that cooperates with the hooks. A clamping drive assembly for adjusting the angle between the two L-shaped clamping plates is provided in the middle of the second sliding rod. A second lifting device for adjusting the height of the second sliding rod is provided on the three-jaw suspension plate.

6. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 5, characterized in that, The clamping drive assembly includes a cross push block slidably connected to the middle of the second sliding rod. One end of the cross push block is rotatably connected to one end of a connecting rod facing the L-shaped clamping plate, and the other end of the connecting rod is rotatably connected to the end of the L-shaped clamping plate. The second sliding rod is provided with an ejection device for adjusting the height of the cross push block relative to the second sliding rod.

7. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 1, characterized in that, The feeding mechanism includes a feeding pipe located at the end of the three-jaw suspension plate. The feeding pipe has a feeding nozzle at the end facing the mold and a connector at the end away from the mold.

8. The high-strength, energy-saving, and environmentally friendly glass forming device according to claim 1, characterized in that, A support is provided on the side of the substrate, and a rotating feed belt is provided at the end of the support. The rotating feed belt is used to drive the substrate to rotate intermittently around its center.

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