Vertical multi-station rotary disc glass cup firing machine

Abstract

The application belongs to the technical field of glass cup firing, and discloses a vertical multi-station rotary table glass cup firing machine, which comprises a firing machine, robot feeding mechanisms and robot discharging mechanisms are respectively arranged on the two sides of the firing machine, a rotary table is connected to the middle part of the top surface of the firing machine through a driving motor, a connecting steel column is arranged at the center end of the rotary table and located at the middle part of the firing machine, a flame spraying module is further arranged on one side of the upper portion of the firing machine and located at the side of the positioning mechanism, and the positioning mechanism is arranged in multiple and annularly and equidistantly arranged on the top surface of the rotary table. The application discards the traditional rigid clamping jaw large-area hard contact clamping mode, reduces the workpiece deviation and displacement problems, can effectively improve the cup wall scratch, wire drawing, extrusion deformation and cracking defects caused by the traditional rigid clamping, and can reduce the heat conduction and heat accumulation effect of the clamping area through the rolling contact mode, relieve the local stress concentration of the workpiece, and help to improve the glass cup firing forming quality.

Description

Technical Field

[0001] This invention belongs to the field of glass cup firing technology, specifically a vertical multi-station turntable glass cup firing machine. Background Technology

[0002] The flame firing process for glass cups generally includes multiple steps such as feeding, preheating, bottom sealing, handle welding, cooling, and unloading. Vertical turntable equipment, relying on intermittent indexing rotation, can sequentially transfer workpieces to various process stations for continuous processing, making it the mainstream equipment for automated heat processing of glass cups. However, existing vertical turntable glass cup firing equipment still has many technical shortcomings.

[0003] First, traditional rotary table equipment typically uses curved rigid jaws to directly clamp the outer wall of the glass. During the high-temperature firing stage, the glass wall softens due to heat; relative sliding friction easily occurs between the rigid jaws and the glass wall, which can easily cause scratches and streaks on the transparent surface of the glass. Simultaneously, the large surface area of ​​contact results in high heat transfer, and the clamping area continuously accumulates heat, easily causing localized stress concentration, leading to deformation and cracking of the glass. Second, traditional rotary table equipment has independently driven clamps at each station, lacking a linkage structure. Some stations are insufficient, resulting in low process flow matching. The loading and unloading stations lack auxiliary workpiece separation structures, making it easy for the robotic arm to interfere with the clamping components during material handling, and posing a risk of pulling and bumping the glass during the handling process. Therefore, improvements are needed. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a vertical multi-station rotary glass firing machine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vertical multi-station turntable glass firing machine, comprising a firing machine, wherein a robot feeding mechanism and a robot unloading mechanism are respectively installed on both sides of the firing machine, a turntable is connected to the center of the top surface of the firing machine via a drive motor, a connecting steel column located at the center end of the turntable is installed in the center of the firing machine, and a flame-spraying module located on the side of the positioning mechanism is also installed on one side above the firing machine, further comprising: The positioning mechanism consists of multiple units, which are installed in a ring at equal intervals on the top surface of the turntable; The lifting module is fixed to the top of the positioning mechanism; The positioning mechanism includes an electric rotation module fixed to the top surface of the turntable, and a chassis is fixed to the output end of the electric rotation module. The chassis includes a disc body. The top of the plate is slidably connected to a locking device in a ring shape. The locking device includes a locking plate, and the upper and lower sides of the adjacent ends of the multiple locking plates are equipped with abutments for abutting against the glass.

[0006] Preferably, the middle end of the disc body is threadedly connected to a retaining ring and a ring cylinder via a threaded groove, the retaining ring is fixedly connected to the top of the ring cylinder, and an annular support top ring is fixedly connected to the top of the retaining ring; The top surface of the annular support ring is at the same level as the top surface of the disc.

[0007] Preferably, the outer wall of the ring cylinder is provided with a plurality of equally spaced grooves in an annular shape, and a first spring is fixedly connected to the bottom of the retaining ring, the bottom of the first spring being fixedly connected to the disc body.

[0008] Preferably, the outer wall of the ring cylinder is elastically connected to a ball bearing by a second spring, and the ball bearing is elastically engaged inside the threaded groove by the second spring; When the ring cylinder drives the ball to move upward, the threaded groove causes the ball to vibrate under the elastic force of the second spring, which in turn causes the ring cylinder, the retaining ring, and the annular support top ring to vibrate.

[0009] Preferably, the card plate has a cavity inside, and a fixing block is fixedly connected to the bottom of the cavity, and the fixing block is slidably connected inside the disk body; One end of the fixing block is elastically connected to the disc body via a third spring.

[0010] Preferably, the bottom of the fixing block is abutted against a sliding plate, and one end of the sliding plate is elastically connected to the disc body through a fourth spring; The end of the moving plate away from the fourth spring is provided with an angle, and the angled end is secured inside the ring cylinder through a slot; When the multiple plates move toward the center end, they will cause the fixed block to move synchronously. At this time, the moving plate limits the ring cylinder under the elastic action of the fourth spring. When multiple card plates move in opposite directions, the card plates will abut against one end of the moving plate and drive the moving plate to move synchronously. At this time, the angled end of the moving plate moves outward from inside the ring cylinder, thereby releasing the restriction on the ring cylinder.

[0011] Preferably, a first pipe communicating with the cavity is fixedly connected to the outer side of the lower end of each of the plurality of card plates, and a first ring pipe is installed on the outer side of the plurality of first pipes, and a second ring pipe is slidably connected to one end of the first ring pipe. The end of the second annular pipe furthest from the first annular pipe is connected to an external compressed gas device via a connecting steel column; An external compressed gas device delivers gas into the cavity through a second loop pipe, a first loop pipe, and a first pipeline via a control terminal. The connection end between the second loop pipe and the connecting steel column is made of an elastic corrugated pipe.

[0012] Preferably, the abutment includes a mounting plate fixed to the card plate, abutment plate rotatably connected to the mounting plate via a rotating shaft, a roller connected to one end of the abutment plate by a ball shaft, and a spring plate sleeved on the outer wall of the rotating shaft to allow the abutment plate to elastically return to its original position; A stop rod is fixedly connected to the outer wall of the end of the stop plate near the mounting plate, and a spring-loaded push-button switch that abuts against the stop rod is fixedly connected to the end of the mounting plate near the stop plate.

[0013] Preferably, air ducts are installed on both sides of the abutment near the roller, and the air outlet of the air duct is at the contact position between the roller and the glass. A high-temperature resistant elastic corrugated pipe communicating with the cavity is installed on the air duct. A solenoid valve is installed inside the high-temperature resistant elastic corrugated pipe near the end of the card plate. The solenoid valve is electrically connected to a spring-loaded push-button switch.

[0014] Preferably, the lifting module includes multiple hydraulic rods fixed to the top of the disc body, and the output end of each hydraulic rod is fixed with a fixing ring sleeved on the outside of multiple clamping plates; The outer wall of the card plate is inclined, and the contact end between the fixing ring and the outer side of the card plate is arc-shaped.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention abandons the traditional rigid jaws and large-area hard-contact clamping method. Instead, it uses a clamping plate combined with an end-rotating abutment and rollers to form a multi-point, circumferential rolling clamping structure, which can flexibly fit and position glass cups in a softened state at high temperatures. Relying on the elastic restoring characteristics of the spring sheet, the abutment can adaptively fine-tune its angle according to the curvature of the glass cup's outer wall and minute dimensional tolerances. This improves the positioning stability of the glass cup during intermittent rotation of the turntable and during equipment start-up and shutdown, reducing workpiece shifting and displacement. It effectively improves defects such as scratches, wire drawing, extrusion deformation, and cracking caused by traditional rigid clamping. At the same time, the rolling contact method reduces heat conduction and heat storage effects in the clamping area, alleviating local stress concentration in the workpiece and helping to improve the quality of glass cup firing.

[0016] This invention utilizes a hydraulic rod in conjunction with a fixed ring with an arc surface and an outer inclined clamping plate to stably convert vertical extension force into horizontal retraction force. This facilitates the synchronous and uniform clamping and releasing actions of multiple clamping plates, improving clamping symmetry and consistency. Simultaneously, an electric rotation module drives the chassis and glass to rotate at a uniform speed. Combined with a multi-station, equidistantly spaced positioning mechanism on the turntable, this effectively optimizes the process flow and improves the continuous processing efficiency of the equipment.

[0017] This invention features a mechanical linkage sensing and automatic pneumatic protection structure. When the roller clamps the glass, a spring-loaded switch is automatically triggered by the pressure of the abutment plate and rod, which in turn activates the solenoid valve to open the pneumatic path. This allows compressed gas inside the cavity to be directionally blown through a high-temperature resistant elastic corrugated pipe and duct to the contact gap between the roller and the glass. A continuous, minute airflow forms a protective gas film on the clamping contact surface, effectively reducing the adhesion tendency between the high-temperature molten glass and the roller, minimizing glass adhesion and material sticking. Simultaneously, it provides targeted cooling and heat dissipation to the clamping area, alleviating the problem of high-temperature heat accumulation in the fixture and mitigating the adverse effects of heat conduction on the workpiece forming accuracy. Combined with the elastic corrugated pipe structure between the second ring pipe and the connecting steel column, it is adaptable to rotary table operations, helping to ensure the continuity and stability of the pneumatic delivery.

[0018] This invention features a station-linked unlocking and lifting structure. During the unloading stage, as the clamping plate moves outward and resets, the moving plate can simultaneously release the limit on the ring cylinder, allowing the first spring to elastically reset and push the clamping ring, the annular support top ring, and the glass cup as a whole to lift. This allows the cup body to leave the clamping area, significantly increasing the exposed area of ​​the workpiece. This reduces the risk of spatial interference between the robot and the clamping components during unloading, reduces the risk of pulling or bumping the glass cup during material handling, and improves the stability and safety of automated loading and unloading.

[0019] This invention utilizes the combination of a ring cylinder, threaded groove, second spring, and ball bearings to generate high-frequency, small-amplitude vibrations during workpiece lifting. This vibration is transmitted to the glass body, weakening the microscopic adhesion between the roller and the glass wall, reducing issues like stringing and edge chipping caused by workpiece adhesion after loosening. Simultaneously, it removes fine glass dust and debris from the contact surface, reducing the probability of hard debris damaging the workpiece surface and further optimizing the appearance quality of the finished glass. Furthermore, the overall structure has strong interconnectivity, eliminating the need for additional independent drive components. This simplifies the equipment control logic and overall structure, reducing maintenance costs and the probability of failure, making it suitable for high-volume, automated continuous glass firing operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the turntable and positioning mechanism of the present invention; Figure 3 This is a top view of the positioning mechanism of the present invention. Figure 4 This is a schematic diagram of the structure connecting the steel column and the positioning mechanism of the present invention; Figure 5 This is a schematic diagram of the subdivided structure of the positioning mechanism of the present invention; Figure 6 for Figure 5 A magnified view of the structure at point A in the middle; Figure 7 for Figure 5 A magnified schematic diagram of the structure at point B in the middle; Figure 8 This is a schematic diagram of the subdivided structure of the card components of the present invention; Figure 9 for Figure 8 A magnified schematic diagram of the structure at point C in the middle; Figure 10 This is a schematic diagram of the chassis subdivision structure of the present invention; Figure 11 for Figure 10 A magnified schematic diagram of the structure at point D in the middle; Figure 12 This is a schematic diagram of the structure of the second annular tube and the first annular tube of the present invention.

[0021] In the picture: 100. Firing machine; 200. Turntable; 300. Connecting steel column; 400. Positioning mechanism; 410. Electric rotation module; 420. Chassis; 421. Disc body; 422. Annular support top ring; 423. Snap ring; 424. Ring cylinder; 425. First spring; 426. Snap groove; 427. Threaded groove; 428. Ball bearing; 429. Second spring; 430. Clip; 431. Clip plate; 432. Cavity; 433. Fixing block; 434. Third spring; 435. Moving plate; 436. Fourth spring; 437. First pipe; 438. First ring pipe; 439. Second ring pipe; 440. Support piece; 441. Support plate; 442. Rotating shaft; 443. Spring sheet; 444. Support rod; 445. Spring-loaded push-button switch; 446. Mounting plate; 447. Roller; 448. High-temperature resistant elastic bellows; 449. Solenoid valve; 4410. Air duct; 500, Flame Throwing Module; 600, Lifting module; 610, Fixing ring; 620, Hydraulic rod. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 12As shown, this invention provides a vertical multi-station turntable glass firing machine, including a firing machine 100. A robot feeding mechanism and a robot unloading mechanism are respectively installed on both sides of the firing machine 100. A turntable 200 is connected to the center of the top surface of the firing machine 100 via a drive motor. A connecting steel column 300 located at the center end of the turntable 200 is installed in the center of the firing machine 100. A flame-spraying module 500 located on the side of a positioning mechanism 400 is also installed on one side above the firing machine 100. The machine also includes: Positioning mechanisms 400, of which multiple are provided, are installed in a ring at equal intervals on the top surface of turntable 200; The lifting module 600 is fixed to the top of the positioning mechanism 400; The positioning mechanism 400 includes an electric rotation module 410 fixedly connected to the top surface of the turntable 200. A chassis 420 is fixedly connected to the output end of the electric rotation module 410. The chassis 420 includes a disc body 421. The top of the plate body 421 is slidably connected to a locking member 430 in a ring shape. The locking member 430 includes a locking plate 431, and the upper and lower sides of the adjacent ends of the multiple locking plates 431 are equipped with abutments 440 for abutting against the glass.

[0024] The above solution involves a turntable 200 driving multiple sets of equidistantly arranged positioning mechanisms 400 to rotate cyclically, enabling continuous multi-station firing of glass cups. This, combined with a robot loading / unloading mechanism and a flame-spraying module 500, improves the continuity of equipment operation. An electric rotation module 410 drives the chassis 420 and the glass cups above it to rotate. A clamping plate 431 and a stopper 440 clamp and limit the glass cups, ensuring more even heating during firing and reducing firing deviations. Simultaneously, a lifting module 600 assists in clamping and releasing the glass cups, adapting to automated loading / unloading processes.

[0025] The middle of the disc body 421 is threadedly connected to a retaining ring 423 and a ring cylinder 424 through a threaded groove 427. The retaining ring 423 is fixed to the top of the ring cylinder 424, and an annular support top ring 422 is fixed to the top of the retaining ring 423. The top surface of the annular support top ring 422 is at the same level as the top surface of the disk body 421.

[0026] The above-mentioned design, with its flush top surface, allows the bottom of the glass to be placed stably and evenly, distributing the force on the glass and reducing the probability of the glass shifting or tilting during firing. This indirectly improves the quality of the glass's firing process and can also accommodate glass cups with different bottom sizes.

[0027] The outer wall of the ring cylinder 424 is provided with multiple slots 426 at equal intervals in an annular shape. The bottom of the retaining ring 423 is fixedly connected to a first spring 425, and the bottom of the first spring 425 is fixedly connected to the disc body 421.

[0028] The above solution is adopted: the multiple slots 426 arranged in a ring on the outer wall of the ring cylinder 424 can be used in conjunction with the subsequent limiting structure to realize the positioning and locking of the ring cylinder 424, thereby improving the overall structural stability; the first spring 425 can provide elastic support for the retaining ring 423, the ring cylinder 424 and the annular support top ring 422, which can buffer the rotation of the turntable 200 and the slight vibration generated during the operation of the equipment, reduce the impact of hard collisions on the glass, and at the same time, it can adapt to the small assembly gap by means of elastic deformation, thereby improving the smoothness of the structure operation.

[0029] The outer wall of the ring cylinder 424 is elastically connected to a ball bearing 428 by a second spring 429, and the ball bearing 428 is elastically engaged in the inside of the threaded groove 427 by the second spring 429. When the ring cylinder 424 drives the ball 428 upward, the ball 428 will vibrate under the elastic force of the second spring 429 due to the threaded groove 427.

[0030] The above solution utilizes the cooperation between the ball bearing 428 and the threaded groove 427, combined with the elastic characteristics of the second spring 429, to generate slight, regular vibrations during the lifting and lowering movement of the ring cylinder 424. These vibrations can be transmitted to the glass cup placed on the annular support top ring 422, which can help shake off fine dust and impurities adhering to the surface of the glass cup, preventing impurities from affecting the surface smoothness and finished product quality of the glass cup after firing. At the same time, the elastic snap-fit ​​structure of the ball bearing 428 can reduce the frictional wear between the ring cylinder 424 and the threaded groove 427, extending the service life of the structure.

[0031] The card plate 431 has a cavity 432 inside, and a fixing block 433 is fixedly connected to the bottom of the cavity 432. The fixing block 433 is slidably connected inside the disk body 421. One end of the fixing block 433 is elastically connected to the disc body 421 via a third spring 434.

[0032] The above solution ensures that the sliding cooperation between the fixed block 433 and the disc 421 can guarantee that the clamping plate 431 can smoothly complete the approach and separation actions, realizing the clamping and releasing operation of the glass cup; the third spring 434 can provide elastic restoring force for the clamping plate 431, making the clamping action of the clamping plate 431 more gentle, reducing the possibility of rigid clamping causing bumps and scratches to the outer wall of the glass cup. At the same time, the cavity 432 can provide space for subsequent gas transmission and component installation, optimizing the overall structural layout.

[0033] The bottom of the fixed block 433 is connected to the sliding plate 435, and one end of the sliding plate 435 is elastically connected to the disc body 421 through the fourth spring 436. The end of the shift plate 435 away from the fourth spring 436 is provided with an angle, and the angled end is locked inside the ring cylinder 424 through the slot 426; When multiple clamping plates 431 move toward the center end, they will drive the fixing block 433 to move synchronously. At this time, the moving plate 435 limits the ring cylinder 424 under the elastic action of the fourth spring 436. When multiple clamping plates 431 move in opposite directions, the clamping plates 431 will abut against one end of the moving plate 435 and drive the moving plate 435 to move synchronously. At this time, the angled end of the moving plate 435 moves outward from inside the ring cylinder 424, thereby releasing the restriction on the ring cylinder 424.

[0034] The above solution achieves automatic limiting and unlocking of the ring cylinder 424 through the moving linkage of the clamping plate 431 and the moving plate 435, without the need for additional drive structure, simplifying the overall control logic and structural complexity of the equipment; the fourth spring 436 ensures accurate reset of the moving plate 435 and stable limiting state, locks the position of the ring cylinder 424 when the clamping plate 431 is holding the glass, avoids displacement of the ring cylinder 424 and the annular support top ring 422 during firing, ensures the positioning accuracy of the glass, and automatically unlocks when the material is released, which facilitates subsequent maintenance and structural adjustment.

[0035] Multiple card plates 431 are fixedly connected to the outer side of the lower end of each first pipe 437 that communicates with the cavity 432. A first ring pipe 438 is installed on the outer side of the multiple first pipes 437. A second ring pipe 439 is slidably connected to one end of the first ring pipe 438. The end of the second loop pipe 439 furthest from the first loop pipe 438 is connected to an external compressed gas device via a connecting steel column 300. An external compressed gas device delivers gas to the interior of cavity 432 through a control terminal via a second loop pipe 439, a first loop pipe 438, and a first pipe 437. The connection end between the second loop pipe 439 and the connecting steel column 300 is made of an elastic corrugated pipe.

[0036] The above scheme is adopted: by forming a complete air passage through the second ring pipe 439, the first ring pipe 438 and the first pipe 437 arranged in layers, compressed gas can be stably delivered into the cavity 432 of the card plate 431, providing a power source for subsequent dust removal and cooling operations; the setting of the elastic corrugated pipe can adapt to the positional displacement caused by the rotation of the turntable 200, avoiding the pulling and breaking of the air passage connection structure. At the same time, the sliding connection pipe structure can adapt to the rotation operation of the turntable 200, ensuring the continuity and stability of the air passage delivery, and adapting to multi-station rotation operation scenarios.

[0037] The abutment 440 includes a mounting plate 446 fixed to the clamping plate 431. Abutment 441 is rotatably connected to the mounting plate 446 via a rotating shaft 442. A roller 447 is connected to one end of the abutment 441 by a ball shaft. A spring sheet 443 is sleeved on the outer wall of the rotating shaft 442 to allow the abutment 441 to elastically return to its original position. A stop rod 444 is fixedly connected to the outer wall of the end of the stop plate 441 near the mounting plate 446, and a spring-loaded push-button switch 445 that abuts against the stop rod 444 is fixedly connected to the end of the mounting plate 446 near the stop plate 441.

[0038] The above solution allows the abutment plate 441 to rotate slightly around the pivot 442, and the end roller 447 to contact the outer wall of the glass, changing the rigid surface contact to rolling contact, effectively reducing wear and compression damage to the outer wall of the glass during clamping; the spring plate 443 enables the abutment plate 441 to self-adaptively and elastically fit, adapting to the outer wall of the glass with different slight curvatures, improving the clamping fit; through the contact cooperation between the abutment rod 444 and the spring-press switch 445, the clamping status of the abutment 440 can be accurately sensed, providing a trigger signal for the automated control of the equipment and improving the intelligent operation of the equipment.

[0039] Air ducts 4410 are installed on both sides of the back plate 441 near the roller 447. The air outlet of the air duct 4410 is at the contact position between the roller 447 and the glass. A high-temperature resistant elastic corrugated pipe 448 communicating with the cavity 432 is installed on the duct 4410. A solenoid valve 449 is installed inside the high-temperature resistant elastic corrugated pipe 448 near the end of the card plate 431. The solenoid valve 449 is electrically connected to the spring-loaded push-button switch 445.

[0040] Using the above solution: the high-temperature resistant elastic corrugated tube 448 can adapt to the high-temperature firing environment and the small rotation of the backing plate 441, avoiding pipe aging and damage; relying on the trigger signal of the spring-press switch 445 to control the start and stop of the solenoid valve 449, automatic air blowing can be achieved in the clamping state without manual operation, improving the accuracy and automation level of the operation, while effectively protecting the forming quality of the glass clamping contact surface.

[0041] The lifting module 600 includes multiple hydraulic rods 620 fixedly connected to the top of the disc body 421, and the output end of the hydraulic rods 620 is fixedly connected to a fixing ring 610 sleeved on the outside of multiple clamping plates 431. The outer wall of the card plate 431 is inclined, and the contact end between the fixing ring 610 and the outer side of the card plate 431 is arc-shaped.

[0042] The above solution involves using a hydraulic rod 620 to drive the fixing ring 610 to rise and fall. This, combined with the inclined and arc-shaped contact structure, squeezes the clamping plate 431, allowing multiple clamping plates 431 to simultaneously approach, clamp, and separate the material. This ensures the consistency of the actions of multiple clamping plates 431 and improves the symmetry and stability of the glass clamping and positioning. The combination of the arc and inclined surfaces reduces the frictional resistance between the fixing ring 610 and the clamping plate 431, reducing structural wear. It also enables flexible squeezing and clamping, further preventing the glass from being squeezed and broken. This solution is suitable for clamping and fixing glass cups with different outer diameters.

[0043] Working principle and usage process of this invention: During the overall operation of the equipment, the workpiece can be automatically fed by the supporting robotic feeding mechanism, which smoothly transports and places the glass cup to be fired into the central clamping area formed by multiple sets of clamping plates 431. After the workpiece is placed, the bottom of the glass cup can make close contact with the upper end face of the annular support top ring 422. The annular support structure provides uniform support for the bottom of the cup, thus initially completing the vertical positioning and support of the glass cup.

[0044] After the workpiece is initially positioned, the hydraulic rod 620 is controlled to extend and retract, causing its output end to drive the fixed ring 610 to descend smoothly vertically. During the descent, the fixed ring 610 can form uniform contact with the outer sides of multiple clamping plates 431 in sequence. By converting the vertical displacement into horizontal thrust, it pushes each clamping plate 431 to move synchronously toward the center of the outer wall of the glass, ensuring that the multiple sets of clamping plates are evenly stressed and move synchronously. As the clamping plates 431 gradually retract, the rollers 447 mounted at their ends can fit and moderately contact the outer wall of the glass. Relying on the multi-point surrounding clamping method, the glass is self-centered and positioned. This method can be adapted to glass blanks with slight dimensional tolerances and slight ellipticity, effectively improving the workpiece clamping and positioning accuracy and reducing the probability of workpiece movement and offset caused by turntable operation and equipment start-up and shutdown vibrations.

[0045] During the process of roller 447 contacting and pressing against the outer wall of the glass to complete clamping and positioning, under the reverse support force of the outer wall of the workpiece, roller 447 and the abutment plate 441 supporting the roller can adaptively flip upward to achieve flexible fit, avoiding rigid hard contact and squeezing that would cause indentations and deformation of the high-temperature softened glass. Simultaneously, the abutment plate 441 flips, causing the bottom abutment rod 444 to move synchronously, thereby pressing the spring-loaded switch 445, triggering the solenoid valve 449 to open through a mechanical pressing linkage. At this time, the clean compressed gas pre-stored inside the cavity 432 can be stably transported through the high-temperature resistant elastic bellows 448 and the air duct 4410, and finally directionally blown to the gap area between roller 447 and the outer wall of the glass. A continuous micro-airflow can form a protective air film at the contact interface, which can effectively isolate the high-temperature softened glass from the contact surface of the roller, reduce the occurrence of molten glass sticking and material sticking, and at the same time moderately cool the roller and workpiece clamping area, alleviate the problem of long-term high temperature heat storage of the fixture, and weaken the impact of heat conduction on the forming accuracy of the workpiece.

[0046] After the workpiece is stably clamped and the gas circuit protection structure is activated, the flame module 500 starts operating to perform flame firing on the pre-set processing area of ​​the glass cup. At the same time, the electric rotation module 410 drives the chassis 420 to rotate at a constant speed. The chassis 420 drives the glass cup, which is supported and positioned above, to rotate synchronously at a low speed, so that all areas of the outer wall of the glass cup can receive the flame heat source evenly, improving the problem of excessive local temperature difference, effectively improving the firing uniformity of the glass cup, and reducing forming defects such as uneven wall thickness and local stress concentration. After the workpiece firing process is completed step by step, the subsequent unloading preparation stage can begin.

[0047] After the glass firing process is completed, the flame-spraying module 500 can be stopped to terminate the flame heating process. Then, the hydraulic rod 620 is restarted to reverse and reset, causing its output end to move the fixing ring 610 vertically upwards, gradually releasing the lateral resistance of the fixing ring 610 to the multiple sets of clamping plates 431. With the external constraints released, the compressed third spring 434 slowly releases its elastic potential energy, thereby pushing the fixing block 433 to move synchronously, causing each set of clamping plates 431 to move synchronously away from the outside of the glass, orderly releasing the clamping limits on the outer wall of the glass, achieving a loosening effect without rigid pulling on the workpiece.

[0048] During the process of the fixed block 433 moving outward and loosening its clamping, its bottom end can form an abutment with the moving plate 435, causing the angled end of the moving plate 435 to gradually move outward from inside the ring cylinder 424, releasing the vertical restriction on the ring cylinder 424. At this time, the first spring 425, which was originally continuously compressed, can be relaxed and reset, smoothly pushing the retaining ring 423 and the annular support top ring 422 to rise vertically in sync, thereby causing the glass cup placed on the top surface of the annular support top ring 422 to move upward as a whole. Through the active lifting structure of the workpiece, most of the cup body can be removed from the enclosure of the clamping components, greatly increasing the exposed area of ​​the workpiece, effectively avoiding the risk of spatial interference between the robot and the fixture structure during the unloading process, and improving the stability and convenience of automated material handling operations.

[0049] As the ring cylinder 424 moves upward synchronously with the retaining ring 423, the ball bearings 428 mounted on the outer side of the ring cylinder can gradually slide upward along the grooved trajectory of the multi-layered threaded groove 427. Combined with the elastic buffering and reciprocating reset effect of the second spring 429, this transmits a high-frequency, small-amplitude, slight vibration to the retaining ring 423 and the annular support top ring 422, and then transmits the vibration to the glass body above. This micro-vibration effectively breaks down any micro-adhesive forces that may exist between the roller and the glass contact surface, preventing problems such as pulling, stringing, and edge chipping due to slight adhesion after the workpiece is loosened. Simultaneously, it shakes away fine glass dust and debris trapped on the contact surface, preventing debris from damaging the workpiece surface and further improving the finished product's appearance quality. After the workpiece lifting and micro-vibration peeling process is completed, the fired glass can be precisely gripped and automatically unloaded by the robotic unloading mechanism.

[0050] 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.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical multi-station turntable glass firing machine, comprising a firing machine (100), wherein a robot feeding mechanism and a robot unloading mechanism are respectively installed on both sides of the firing machine (100), a turntable (200) is connected to the center of the top surface of the firing machine (100) via a drive motor, a connecting steel column (300) located at the center end of the turntable (200) is installed in the center of the firing machine (100), and a flame-spraying module (500) located on the side of a positioning mechanism (400) is also installed on one side above the firing machine (100), characterized in that: Also includes: Positioning mechanisms (400), multiple of which are installed in a ring at equal intervals on the top surface of the turntable (200); The lifting module (600) is fixed to the top of the positioning mechanism (400); The positioning mechanism (400) includes an electric rotation module (410) fixed to the top surface of the turntable (200), and a chassis (420) is fixed to the output end of the electric rotation module (410). The chassis (420) includes a disc body (421). The top of the plate (421) is slidably connected with a locking element (430) in an annular shape. The locking element (430) includes a locking plate (431), and the upper and lower sides of the adjacent ends of the multiple locking plates (431) are equipped with abutments (440) for abutting against the glass.

2. The vertical multi-station rotary glass firing machine according to claim 1, characterized in that: The middle end of the disc body (421) is threadedly connected to a retaining ring (423) and a ring cylinder (424) through a threaded groove (427). The retaining ring (423) is fixed to the top of the ring cylinder (424), and an annular support top ring (422) is fixed to the top of the retaining ring (423). The top surface of the annular support top ring (422) is at the same level as the top surface of the disk body (421).

3. The vertical multi-station rotary glass firing machine according to claim 2, characterized in that: The outer wall of the ring cylinder (424) is provided with a plurality of slots (426) at equal intervals in an annular shape. The bottom of the retaining ring (423) is fixedly connected to a first spring (425), and the bottom of the first spring (425) is fixedly connected to the disc body (421).

4. The vertical multi-station rotary glass firing machine according to claim 3, characterized in that: The outer wall of the ring cylinder (424) is elastically connected to a ball (428) by a second spring (429), and the ball (428) is elastically engaged in the inside of the threaded groove (427) by the second spring (429); When the ring cylinder (424) drives the ball (428) upward, the ball (428) will vibrate under the elastic force of the second spring (429) due to the thread groove (427).

5. The vertical multi-station rotary glass firing machine according to claim 1, characterized in that: The card plate (431) has a cavity (432) inside, and a fixing block (433) is fixedly connected to the bottom of the cavity (432). The fixing block (433) is slidably connected to the inside of the disk body (421). One end of the fixing block (433) is elastically connected to the disc body (421) via a third spring (434).

6. The vertical multi-station rotary glass firing machine according to claim 5, characterized in that: The bottom of the fixed block (433) is connected to a sliding plate (435), and one end of the sliding plate (435) is elastically connected to the disc body (421) through a fourth spring (436). The end of the moving plate (435) away from the fourth spring (436) is provided with an angle, and the angled end is locked inside the ring cylinder (424) through the slot (426); When the multiple clamping plates (431) move toward the center end, they will drive the fixing block (433) to move synchronously. At this time, the moving plate (435) limits the ring cylinder (424) under the elastic action of the fourth spring (436). When multiple card plates (431) move in opposite directions, the card plate (431) will abut against one end of the moving plate (435) and drive the moving plate (435) to move synchronously. At this time, the angled end of the moving plate (435) moves outward from inside the ring cylinder (424) to release the restriction on the ring cylinder (424).

7. The vertical multi-station rotary glass firing machine according to claim 1, characterized in that: The outer side of the lower end of each of the multiple card plates (431) is fixedly connected to a first pipe (437) communicating with the cavity (432), and a first ring pipe (438) is installed on the outer side of the multiple first pipes (437), and a second ring pipe (439) is slidably connected to one end of the first ring pipe (438). The end of the second loop pipe (439) away from the first loop pipe (438) is connected to an external compressed gas device via a connecting steel column (300); An external compressed gas device delivers gas to the interior of the cavity (432) through a control terminal via a second loop pipe (439), a first loop pipe (438), and a first pipeline (437). The connection end between the second loop pipe (439) and the connecting steel column (300) is made of an elastic corrugated pipe.

8. The vertical multi-station rotary glass firing machine according to claim 1, characterized in that: The abutment (440) includes a mounting plate (446) fixed to the clamping plate (431), and abutment (441) is rotatably connected to the mounting plate (446) via a rotating shaft (442). A roller (447) is connected to one end of the abutment (441) by a ball shaft. A spring sheet (443) is sleeved on the outer wall of the rotating shaft (442) to allow the abutment (441) to elastically return to its original position. A stop rod (444) is fixedly connected to the outer wall of the end of the stop plate (441) near the mounting plate (446), and a spring-loaded push-button switch (445) that abuts against the stop rod (444) is fixedly connected to the end of the mounting plate (446) near the stop plate (441).

9. The vertical multi-station rotary glass firing machine according to claim 8, characterized in that: Air ducts (4410) are installed on both sides of the back plate (441) near the roller (447), and the air outlet of the air duct (4410) is at the contact position between the roller (447) and the glass. The air duct (4410) is equipped with a high-temperature resistant elastic corrugated pipe (448) that communicates with the cavity (432). A solenoid valve (449) is installed inside the high-temperature resistant elastic corrugated pipe (448) near the end of the card plate (431). The solenoid valve (449) is electrically connected to a spring-loaded push-button switch (445).

10. The vertical multi-station rotary glass firing machine according to claim 1, characterized in that: The lifting module (600) includes a plurality of hydraulic rods (620) fixed to the top of the disc body (421), and the output end of the hydraulic rods (620) is fixedly connected to a fixing ring (610) sleeved on the outside of a plurality of clamping plates (431). The outer wall of the card plate (431) is inclined, and the contact end between the fixing ring (610) and the outer side of the card plate (431) is arc-shaped.

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