Energy-saving glassware centrifugal forming device

Abstract

An energy-saving centrifugal forming apparatus for glassware includes a worktable, an intermittently rotating geared disc, multiple circumferentially arranged centrifugal mechanisms, and a fixedly mounted flame gun. The improvement lies in the addition of a movable energy storage plate and a heat transfer system connected to the energy storage plate. The energy storage plate can switch between a working position below the flame gun and a clearance position as the geared disc rotates, recovering the wasted heat from the flame gun during mold switching intervals. The heat transfer system includes a heat recovery pipe, a quick-connect fitting assembly, and a heat-conducting platform located at the bottom of the mold, which can transfer the heat absorbed by the energy storage plate to the subsequent mold to preheat the molten glass inside. This invention significantly reduces the main energy consumption of the flame gun by recovering and reusing wasted heat energy during process intervals, improving the overall thermal efficiency of production and achieving energy conservation.

Description

Technical Field

[0001] This invention belongs to the field of glassware technology, specifically referring to an energy-saving centrifugal forming device for glassware. Background Technology

[0002] Centrifugal forming of glassware is a highly efficient manufacturing process. In this process, molten glass is poured into a high-speed rotating mold, where it is shaped into the desired vessel shape under centrifugal force. To ensure the glass material maintains good fluidity and conforms to the mold, the rotating mold is typically heated using a blowtorch.

[0003] The existing typical equipment layout is as follows: a turntable that can rotate intermittently has multiple mold stations arranged circumferentially, and a fixed blowtorch is aimed at one of the heating stations. During operation, the mold containing glass material rotates to the bottom of the blowtorch and is heated for a timed period; after heating is completed, the turntable rotates to switch the next cold mold to the heating station, while the heated mold is removed.

[0004] This process presents a significant energy waste problem: during the intervals between turntable rotation and mold switching, the flame gun typically needs to maintain a stable flame and continue spraying. At this time, the high-temperature flame cannot reach any mold, and its heat is directly dissipated into the surrounding environment, resulting in wasted energy. Furthermore, the next mold to enter the heating station and its internal glass material are still at room temperature or lower, requiring the flame gun to reheat them from scratch, consuming a large amount of energy. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides an energy-saving centrifugal forming device for glassware, which at least partially solves the above problems.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an energy-saving glassware centrifugal forming device, including a worktable, a toothed disc that can rotate intermittently, multiple centrifugal mechanisms arranged along the circumference of the toothed disc, an energy storage plate, a heat transfer system, and multiple flame guns located at a fixed station for heating the mold. The centrifugal mechanism includes a mold and a driving component. The energy storage plate is movably disposed between the toothed disc and the flame gun, and has a working position for absorbing the heat of the flame gun and a clearance position for avoiding the centrifugal mechanism. The energy storage plate can switch between the working position and the clearance position when the toothed disc rotates intermittently. The heat transfer system is connected between the energy storage plate and at least one of the centrifugal mechanisms, and is used to transfer the heat absorbed by the energy storage plate to the corresponding mold.

[0007] Furthermore, the workbench is equipped with a gear that meshes with the gear disk, and the energy storage plate is connected to the gear via a rotating rod, so that the swing of the energy storage plate is linked with the rotation of the gear disk.

[0008] Furthermore, the energy storage plate is fan-shaped, with a groove on its upper surface opposite to the flame gun, and a heat absorption cavity filled with liquid heat-conducting medium below the groove.

[0009] Furthermore, the heat transfer system includes a heat recovery pipe, a heat-conducting platform mounted on the centrifugal mechanism, a fixed sleeve, and a quick-connect fitting assembly; the fixed sleeve is fitted onto the rotating rod and is rotatably connected to and internally communicates with the rotating rod; one end of the heat recovery pipe is connected to the fixed sleeve, and the other end is provided with a first quick-connect fitting; the heat-conducting platform is fixedly mounted on the toothed disc, and has a heat transfer channel inside it; one end of the heat transfer channel is provided with a second quick-connect fitting that can mate with the first quick-connect fitting.

[0010] Furthermore, the heat-conducting platform is arranged around the bottom of the mold, and a heat-insulating cavity is provided inside it. The heat transfer channel is connected to the heat-insulating cavity through an annular groove opened on the heat-conducting platform. A transmission hole is connected to the annular groove, and the second quick connector is located in the transmission hole.

[0011] Furthermore, the energy-saving centrifugal forming device for glassware proposed in this invention also includes forks for guiding the quick-connect connector assembly to engage. The forks are symmetrically arranged on the side wall of the heat-conducting stage. Each of the two forks has a first slope on one side of the heat-conducting stage, and the opposite sides of the two forks have a second slope. The inclination direction of the two first slopes is towards the second quick-connect connector, and the two second slopes form a funnel-shaped structure with the opening facing outward.

[0012] Furthermore, the workbench is provided with multiple support plates, the heat recovery pipe slides through the support plates, and a spring is connected between the heat recovery pipe and the support plate. The spring is used to provide the elastic force for the first quick connector to reset or buffer. The end of the first slope is provided with a termination ridge. When the docking is completed, the termination ridge is flush with the central axis of the second quick connector.

[0013] Furthermore, a first toothed cavity is connected above the heat absorption cavity, and the sliding groove is connected to the first toothed cavity.

[0014] Furthermore, a second toothed cavity is provided above the first toothed cavity, and the heat absorption cavity is connected to the second toothed cavity.

[0015] Furthermore, the centrifugal mechanism also includes a rotating shaft, the mold is mounted on the rotating shaft and driven to rotate by a driving component, and the heat-conducting platform is fixedly sleeved outside the rotating shaft.

[0016] The beneficial effects achieved by this invention are as follows: By setting an energy storage plate that can switch between a position below the flame gun and an avoidance position, along with a matching heat transfer system, the heat energy lost by the flame gun during the mold switching interval is effectively captured and recovered. This heat energy is then used to preheat the molten glass in the mold to be processed later, thereby significantly reducing the energy consumption of the main flame gun and improving the overall energy utilization rate. Simultaneously, the heat absorption chamber and multi-layered toothed cavity structure inside the energy storage plate greatly increase the heat exchange area and the medium flow path. This not only enhances the instantaneous heat absorption capacity but also effectively retains heat and delays its dissipation, ensuring stable storage and efficient transfer of recovered heat. This further guarantees the uniformity and sufficiency of the preheating effect, achieving the dual goals of energy saving and process optimization. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the energy-saving glassware centrifugal forming device according to an embodiment of the present invention; Figure 2 This is a diagram showing the state when the second quick-connect connector is connected to the centrifugal mechanism. Figure 3 This is a schematic diagram of the shift fork structure; Figure 4 for Figure 3 Enlarged view of section I; Figure 5 This is a cross-sectional view of the centrifuge mechanism; Figure 6 A fractured view of the cross-sectional view of the energy storage panel; Figure 7 This is a cross-sectional view of another embodiment of the energy storage panel.

[0018] The components are as follows: 1. Workbench; 2. Gear disc; 3. Centrifugal mechanism; 4. Flamethrower; 5. Energy storage plate; 6. Heat recovery pipe; 7. Support plate; 8. Drive component; 9. Heat conduction platform; 10. Mold; 11. Fork; 12. Spring; 13. First quick-connect connector; 14. Second quick-connect connector; 15. First slope; 16. Second slope; 17. Termination ridge; 18. Insulation cavity; 19. Annular groove; 20. Transmission hole; 21. Rotating shaft; 22. Slide groove; 23. Heat absorption cavity; 24. Rotating rod; 25. First toothed cavity; 26. Second toothed cavity; 27. Fixed sleeve; 28. Gear.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1 to 7 As shown in the figure, this embodiment provides an energy-saving centrifugal forming device for glassware. The device mainly includes a worktable 1, a toothed disc 2, multiple centrifugal mechanisms 3, a flame gun 4, an energy storage plate 5, and a heat transfer system.

[0023] The worktable 1 serves as a support platform. The gear disc 2 is intermittently rotatable on the worktable 1 via a central pivot (not fully shown in the figure). Multiple centrifugal mechanisms 3 are evenly distributed along the circumference of the gear disc 2. Each centrifugal mechanism 3 includes a mold 10 for forming glassware, a drive component 8 (such as a motor) for driving the mold 10 to rotate at high speed, and a pivot 21. The mold 10 and the drive component 8 are mounted on the pivot 21. A fixed blowtorch 4 is located beside the gear disc 2, its nozzle aimed at a fixed heating station for heating the mold 10 upon arrival at this station, further melting the molten glass inside.

[0024] The energy storage plate 5 is one of the core components for heat energy recovery in this invention. It is hinged to the worktable 1 via a rotating rod 24, enabling it to... Figure 1 The device swings between two extreme positions: one is a working position (for heat absorption) inside the edge of the gear plate 2, directly below the flame gun 4, located between two adjacent molds 10; the other is a clearance position (avoiding interference with the heating of the mold 10) outside the gear plate 2 and offset from the centrifugal mechanism 3. To synchronize the swing of the energy storage plate 5 with the intermittent rotation of the gear plate 2, a gear 28 is installed below the rotary rod 24. This gear 28 meshes with the gear plate 2. Each time the gear plate 2 rotates intermittently, the gear 28 rotates by a corresponding angle when the mold 10 rotates to the next station. In this embodiment, the energy storage plate 5 synchronously completes a switch from the clearance position to the working position or from the working position to the clearance position every 60 degrees of rotation of the gear plate 2.

[0025] As a further improvement, the main body of the energy storage panel 5 is fan-shaped (see...). Figure 6 , Figure 7 Its upper surface has an arc-shaped groove 22 that matches the spray angle of the flame gun 4 to better collect the heat of the flame. Below the groove 22 is a sealed heat absorption chamber 23, which is filled with a liquid heat-conducting medium with high specific heat capacity (such as heat transfer oil).

[0026] In some embodiments, to maximize heat absorption efficiency and heat retention time, a first toothed cavity 25 and a second toothed cavity 26 are sequentially arranged above the heat absorption cavity 23. The bottom of the groove 22 communicates with the first toothed cavity 25, and the heat absorption cavity 23 communicates with the second toothed cavity 26. This multi-layer cavity structure significantly increases the heating area and the flow path of the heat medium, while effectively slowing down heat loss through the tortuous and interconnected path, allowing the flame heat to be quickly absorbed and fully stored.

[0027] In some embodiments, the heat transfer system is used to transfer the heat stored in the energy storage plate 5 to the mold 10 that needs to be preheated. The system mainly includes a heat recovery pipe 6, a fixing sleeve 27, a heat conduction platform 9, and a quick-connect coupling assembly.

[0028] The heat absorption chamber 23 inside the energy storage plate 5 is connected to the hollow channel inside the rotating rod 24 via a pipe (not shown in the figure). A fixed sleeve 27 in the form of a rotary joint is fitted onto the root of the rotating rod 24. The two can rotate relative to each other, but the internal fluid remains connected (the rotating body structure is a mature technology and will not be described in detail), so that the energy storage plate 5 can swing in two working positions. One end of the heat recovery pipe 6 is connected to the fixed sleeve 27, and the other end is equipped with a first quick-connect fitting 13. The heat recovery pipe 6 slides through multiple support plates 7 installed on the worktable 1, and a spring 12 is provided between them to provide axial buffering and restoring force for the first quick-connect fitting 13.

[0029] Each centrifugal mechanism 3 is equipped with a heat-conducting platform 9. The heat-conducting platform 9 is fixedly sleeved on the outside of the rotating shaft 21 by bearings and other structures, that is, the mold 10 and the rotating shaft 21 can rotate freely relative to it, while the heat-conducting platform 9 itself does not rotate. Inside the heat-conducting platform 9, there is an annular heat-insulating cavity 18 surrounding the bottom of the mold 10. Inside the side wall of the heat-conducting platform 9, a heat transfer channel is machined. One end of the channel is connected to the second quick connector 14 through a transfer hole 20, and the other end is connected to the heat-insulating cavity 18 through an annular groove 19.

[0030] To achieve automatic docking and disengagement between the end of the heat return tube 6 (first quick-connect connector 13) on the rotating gear disk 2 and the second quick-connect connector 14 on the fixed heat-conducting platform 9, a pair of forks 11 are symmetrically installed vertically on the side wall of the heat-conducting platform 9 and on both sides of the second quick-connect connector 14. The two forks 11 have an inclined first slope 15 on one side facing the heat-conducting platform 9, and an inclined second slope 16 on the opposite side, together forming a guide bell mouth. The end of the first slope 15 has a termination ridge 17 for precise positioning.

[0031] In actual operation, in the initial state, a mold 10 (denoted as mold A) is located below the flame gun 4 and is heated, while the energy storage plate 5 is in a clearance position. At this time, the quick-connect fitting corresponding to a mold to be preheated (denoted as mold B) may be in a mating state, and the circuit is connected.

[0032] When the flame gun 4 heats the mold A for the set time, the energy storage plate 5 has transferred heat to the insulation cavity 18 of the mold B through the circuit to preheat the glass material inside.

[0033] After heating is complete, the gear disc 2 begins to rotate intermittently. As the gear disc 2 rotates, it drives the energy storage plate 5 to swing from its clearance position to the working position below the flame gun 4 via gear 28. Simultaneously, mold A moves away, mold B moves towards the heating station, and mold C enters the preheating receiving position. During rotation, the first quick-connect connector 13 corresponding to mold B separates from the termination ridge 17 and smoothly disengages from the second quick-connect connector 14 under the action of spring 12. Meanwhile, the first quick-connect connector 13 corresponding to mold C, guided by the first slope 15 and the second slope 16 of the shift fork 11, overcomes the resistance of spring 12 and accurately inserts into the corresponding second quick-connect connector 14 until the termination ridge 17 abuts, completing the connection and establishing a new heat transfer circuit. The termination ridge 17 is flush with the central axis of the second quick-connect connector 14, enabling rapid separation during station switching and preventing interference when the first quick-connect connector 13 and the second quick-connect connector 14 separate.

[0034] After the toothed disc 2 rotates to the stop position, there is no mold below the flame gun 4, but the energy storage plate 5 is directly below it. The heat from the flame continuously emitted by the flame gun 4 is received by the groove 22 of the energy storage plate 5 and efficiently absorbed and stored through the multi-layer toothed cavity structure. At the same time, the stored heat is immediately and continuously transported to the heat preservation cavity 18 of the mold C through the connected circuit (via the fixed sleeve 27, the heat recovery pipe 6, the quick-connect connector assembly, and the heat conduction platform 9) to preheat the mold C and the glass material inside.

[0035] When the next heating cycle begins, the gear plate 2 rotates again. The energy storage plate 5 moves to a clearing position, and the preheated mold C enters under the flame gun 4 to receive final heating. At the same time, the energy storage plate 5 reconnects with the next mold to be preheated, and the above process is repeated.

[0036] In this cycle, the heat energy that was wasted by the flame gun 4 during the mold switching interval is recovered by the energy storage plate 5 and used in real time to preheat the subsequent molds, thereby greatly reducing the energy and time required to heat the cold molds to the working temperature and achieving significant energy saving and efficiency improvement.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An energy-saving centrifugal forming device for glassware, comprising a worktable (1), a toothed disc (2) capable of intermittent rotation, a plurality of centrifugal mechanisms (3) arranged circumferentially along the toothed disc (2), and a blowtorch (4) located at a fixed station for heating the mold, wherein the centrifugal mechanism (3) comprises a mold (10) and a driving component (8), characterized in that: It also includes an energy storage panel (5) and a heat transfer system; The energy storage plate (5) is movably disposed between the toothed disc (2) and the flame gun (4), and has a working position for absorbing the heat of the flame gun (4) and a clearance position for avoiding the centrifugal mechanism (3). The energy storage plate (5) is configured to switch between the working position and the clearance position when the toothed disc (2) rotates intermittently. The heat transfer system is connected between the energy storage plate (5) and at least one of the centrifugal mechanisms (3) for transferring the heat absorbed by the energy storage plate (5) to the corresponding mold (10).

2. The energy-saving centrifugal forming device for glassware according to claim 1, characterized in that: The workbench (1) is provided with a gear (28) that meshes with the gear disc (2). The energy storage plate (5) is connected to the gear (28) through a rotating rod (24), so that the swing of the energy storage plate (5) is linked with the rotation of the gear disc (2).

3. The energy-saving centrifugal forming device for glassware according to claim 2, characterized in that: The energy storage plate (5) is fan-shaped, and its upper surface is provided with a groove (22) opposite to the flame gun (4). Below the groove (22) is a heat absorption cavity (23) filled with liquid heat-conducting medium.

4. The energy-saving centrifugal forming apparatus for glassware according to claim 3, characterized in that: The heat transfer system includes a heat return pipe (6), a heat conduction platform (9) mounted on a centrifugal mechanism (3), a fixed sleeve (27), and a quick-connect fitting assembly. The fixed sleeve (27) is fitted onto a rotating rod (24) and is rotatably connected to and internally communicated with the rotating rod (24). One end of the heat return pipe (6) is connected to the fixed sleeve (27), and the other end is provided with a first quick-connect fitting (13). The heat conduction platform (9) is fixedly mounted on a toothed disc (2) and has a heat transfer channel inside. One end of the heat transfer channel is provided with a second quick-connect fitting (14) that can be connected to the first quick-connect fitting (13).

5. The energy-saving centrifugal forming apparatus for glassware according to claim 4, characterized in that: The heat-conducting platform (9) is arranged around the bottom of the mold (10), and a heat-insulating cavity (18) is provided inside it. The heat transfer channel is connected to the heat-insulating cavity (18) through an annular groove (19) opened on the heat-conducting platform (9). A transmission hole (20) is connected on the annular groove (19), and the second quick connector (14) is located in the transmission hole (20).

6. The energy-saving centrifugal forming apparatus for glassware according to claim 4, characterized in that: It also includes a fork (11) for guiding the quick-connect assembly to dock, the fork (11) being symmetrically arranged on the side wall of the heat-conducting platform (9); each of the two forks (11) has a first slope (15) on one side of the heat-conducting platform (9), and the opposite sides of the two forks (11) have a second slope (16), the inclination direction of the two first slopes (15) is towards the second quick-connect (14), and the two second slopes (16) form a flared structure with the opening facing outward.

7. The energy-saving centrifugal forming apparatus for glassware according to claim 6, characterized in that: The workbench (1) is provided with multiple support plates (7), the heat recovery pipe (6) slides through the support plate (7), and a spring (12) is connected between the heat recovery pipe (6) and the support plate (7). The spring (12) is used to provide the elastic force for the first quick connector (13) to reset or buffer. The end of the first slope (15) is provided with a termination ridge (17). When the docking is completed, the termination ridge (17) is flush with the central axis of the second quick connector (14).

8. The energy-saving centrifugal forming apparatus for glassware according to claim 3, characterized in that: The heat absorption cavity (23) is connected to the first toothed cavity (25) above, and the slide groove (22) is connected to the first toothed cavity (25).

9. The energy-saving centrifugal forming apparatus for glassware according to claim 8, characterized in that: A second toothed cavity (26) is provided above the first toothed cavity (25), and the heat absorption cavity (23) is connected to the second toothed cavity (26).

10. The energy-saving centrifugal forming apparatus for glassware according to claim 4, characterized in that: The centrifugal mechanism (3) also includes a rotating shaft (21), the mold (10) is mounted on the rotating shaft (21) and driven to rotate by the driving component (8), and the heat-conducting platform (9) is fixedly sleeved outside the rotating shaft (21).

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