High-coaxiality segmented screw shaft for kiln charging machine and processing method and device thereof

Abstract

The application provides a high-coaxiality segmented screw shaft for a kiln feeding machine, a first auger assembly comprises a first hollow rod, one end of the first hollow rod is fixedly connected with a first connecting shaft, the surface of the first connecting shaft is provided with a first pin slot, the other end of the first hollow rod is fixedly connected with a spline sleeve, and the surface of the first hollow rod is fixedly connected with first auger blades; a second auger assembly comprises a second hollow rod, one end of the second hollow rod is fixedly connected with a second connecting shaft, the surface of the second connecting shaft is provided with a second pin slot, the other end of the second hollow rod is fixedly connected with a spline rod, and the surface of the second hollow rod is fixedly connected with second auger blades. Through the cooperation of the first placing assembly, the second placing assembly and the feeding and gluing assembly, the first auger assembly and the second auger assembly can be assembled into an integrated conveying auger.

Description

Technical Field

[0001] This invention belongs to the technical field of screw shafts for feeding machines, specifically relating to a high coaxiality segmented screw shaft for kiln feeding machines and its processing method and apparatus. Background Technology

[0002] TFT glass substrates are the core substrate of liquid crystal display panels. Their production process requires high-temperature melting of glass raw materials in a furnace, and the stability of the feeding process directly determines the quality of the molten glass and production efficiency. Currently, the industry commonly uses screw feeders to achieve continuous feeding. As the core transmission component of the screw feeder, the screw shaft needs to operate under high temperature and high load conditions for a long time, undertaking the task of axially pushing the glass raw materials.

[0003] Most existing TFT glass furnace feeding machines use a one-piece long shaft structure for their spiral shafts. As TFT glass production moves towards larger sizes, the length and weight of the spiral shaft have increased significantly. The one-piece long shaft structure has the following technical drawbacks: First, the long shaft is difficult to process, and processing errors can easily lead to excessive shaft curvature, affecting the uniformity and stability of feeding. Second, the long shaft requires multiple support points during installation, making it difficult to guarantee coaxiality, which can easily lead to shaft rotation jamming and accelerated wear. Third, when the shaft is partially damaged, the entire shaft needs to be replaced, resulting in high maintenance costs and making it unsuitable for feeding troughs of different lengths.

[0004] To address the aforementioned issues, some existing technologies have proposed segmented spiral shaft structures, but these often employ simple flange or bolt connections. In practical applications, these connection methods still suffer from insufficient connection strength and difficulty in accurately ensuring coaxiality. They are prone to relative loosening or radial runout under high temperature and heavy load conditions, failing to meet the high-precision and high-stability feeding requirements of TFT glass manufacturing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high coaxiality segmented spiral shaft for kiln feeding machines, along with its processing method and apparatus, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The kiln feeding machine uses a high coaxiality segmented screw shaft, including:

[0008] The first auger assembly includes a first hollow rod, one end of which is fixedly connected to a first connecting shaft, the surface of which is provided with a first pin groove, the other end of which is fixedly connected to a spline sleeve, and the surface of which is fixedly connected to a first auger blade.

[0009] The second auger assembly includes a second hollow rod, one end of which is fixedly connected to a second connecting shaft, the surface of which is provided with a second pin groove, the other end of which is fixedly connected to a spline rod that mates with a spline sleeve, and the surface of which is fixedly connected to a second auger blade.

[0010] The machining method for a high coaxiality segmented screw shaft used in a kiln feeding machine includes:

[0011] S1. The front section of the first hollow rod and the rear section of the second hollow rod are heat-treated respectively. The heat treatment temperature is 850-900℃ and the holding time is 2-3 hours. After cooling, they are precision-machined to ensure that the roundness error of the shaft is ≤0.02mm and the machining accuracy grade of the teeth of the spline rod and spline sleeve is ≥7.

[0012] S2. Rotate the first auger assembly and the second auger assembly respectively to ensure that the spline rod of the rear section of the second hollow rod is aligned with the spline hole of the front section of the first hollow rod and can be inserted axially so that the spline rod and the spline sleeve teeth are fully engaged.

[0013] S3. A high-temperature resistant adhesive layer is coated on the inner wall of the spline sleeve using a processing device. At the same time, a sealing ring gasket is installed on the surface of the spline rod. The spline rod is then pressed into the second mounting hole to achieve an interference fit and adhesive fixation. This completes the initial assembly and forms the entire helical shaft.

[0014] S4. Use a dial indicator to test the radial runout of the assembled screw shaft as a whole, and control the overall radial runout to be ≤0.03mm. If the runout exceeds the standard, calibrate by fine-tuning the installation position of the connectors or by applying adhesive.

[0015] S5. Install the calibrated spiral shaft into the feed trough of the TFT glass furnace feeder, connect the drive mechanism and transmission system, start the equipment for no-load test run, test the shaft rotation stability, and the feed amount fluctuation coefficient during load test run should be ≤±1%.

[0016] A processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine includes: a base plate, on the top surface of which a first placement component and a second placement component are symmetrically mounted; a first auger component is placed on the top surface of the first placement component; a second auger component is placed on the top surface of the second placement component; a feeding and gluing component is mounted on one side of the top surface of the base plate; the second placement component adopts the same structure as the first placement component, and the second placement component is symmetrically mounted with the first placement component.

[0017] Furthermore, the feeding and gluing assembly includes a support rod, a support rod is fixedly connected to the top surface of the base plate, a transverse guide rail is fixedly connected to one side of the support rod, a transverse screw is rotatably connected inside the transverse guide rail, a sleeve is threadedly connected to the surface of the transverse screw, a Y-shaped rod is slidably connected to one end of the sleeve, a forward-pushing pneumatic rod is fixedly connected to the top surface of the Y-shaped rod and located between the sleeves, a transverse motor is fixedly connected to one end of the transverse guide rail, the output end of the transverse motor is fixedly connected to the transverse screw, and a feeding component and a gluing component are respectively installed on the bottom surface of the Y-shaped rod.

[0018] Furthermore, the feeding component includes a T-shaped column and a feeding track. The bottom surface of the Y-shaped rod is fixedly connected to the feeding track, and the bottom surface of the feeding track is slidably connected to a lifting sleeve. A reverse motor is fixedly connected to one side of the lifting sleeve. The output end of the reverse motor is connected to a hollow ring through a worm gear and worm wheel. A vacuum suction cup is arranged in a circular array on one side of the hollow ring. The bottom surface of the base plate is fixedly connected to the T-shaped column, and a sealing ring gasket is placed on the surface of the T-shaped column.

[0019] Furthermore, the adhesive application component includes a feed rail, the bottom surface of the Y-shaped rod is fixedly connected to the feed rail, the bottom surface of the feed rail is slidably connected to a feed plate, one side of the feed plate is fixedly connected to an adhesive application motor, the output end of the adhesive application motor is rotatably connected to an adhesive application cylinder through a worm gear and worm wheel, the surface of the adhesive application cylinder is provided with adhesive outlet holes at equal intervals, one side of the feed rail is fixedly connected to a long rod, and one end of the long rod is fixedly connected to a receiving tray.

[0020] Furthermore, the first placement component includes a U-shaped base, a horizontal slide rail symmetrically mounted on the top surface of the U-shaped base, a U-shaped placement seat slidably connected to the top surface of the horizontal slide rail, rollers symmetrically rotatably connected inside the U-shaped placement seat, a forward hydraulic rod fixedly connected to the middle of the U-shaped base, the output end of the forward hydraulic rod being fixedly connected to the bottom surface of the U-shaped placement seat, an angle component mounted on one side of the U-shaped placement seat, and a fixed axis component mounted on one side of the angle component.

[0021] Furthermore, the angle component includes a bent plate, a bent plate is fixedly connected to one side of the U-shaped placement seat, an angle motor is fixedly connected to one side of the bent plate, the output end of the angle motor is rotatably connected to an angle shaft through a worm gear and worm wheel, a swing plate is fixedly connected to one end of the angle shaft, and a fixed shaft component is installed on one side of the swing plate.

[0022] Furthermore, the fixed-axis component includes a sleeve and an L-shaped bent rod. The sleeve is fixedly connected to one side of the swing plate, and the L-shaped bent rod is fixedly connected to the circumferential surface of the swing plate. A positioning pneumatic rod is fixedly connected to one side of the L-shaped bent rod, and a positioning pin is fixedly connected to the output end of the positioning pneumatic rod. The positioning pin slides within the sleeve.

[0023] This invention provides a high coaxiality segmented spiral shaft for a kiln feeding machine, along with its processing method and apparatus. Compared with existing technologies, it has the following advantages:

[0024] 1. The segmented design breaks down the long shaft into two sections, reducing the difficulty of single-shaft machining and avoiding the problem of excessive bending of the long shaft; the segmented structure facilitates single-shaft transportation and installation, reduces the difficulty of installation operation, adapts to feeding troughs of different lengths, and improves equipment adaptability.

[0025] 2. Axial fixation is achieved through the meshing of the spline sleeve and the spline rod, which effectively improves the overall coaxiality of the screw shaft and avoids rotational jamming. The meshing of the teeth increases the force-bearing area, and combined with the auxiliary fixation of the high-temperature adhesive layer and the sealing ring gasket, it greatly improves the connection strength and high-temperature resistance, adapting to the high-temperature working conditions of the kiln.

[0026] 3. By cooperating with the first placement component, the second placement component, and the feeding and gluing component, the first auger component and the second auger component can be assembled into an integrated conveying auger. Attached Figure Description

[0027] 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.

[0028] Figure 1 A schematic diagram of the first auger assembly and the second auger assembly of the present invention is shown;

[0029] Figure 2 A partial cross-sectional schematic diagram of the first auger assembly and the second auger assembly of the present invention is shown;

[0030] Figure 3 An overall schematic diagram of the present invention is shown;

[0031] Figure 4 This diagram shows another perspective view of the overall invention;

[0032] Figure 5 A schematic diagram of the first placement component of the present invention is shown;

[0033] Figure 6A partial cross-sectional schematic diagram of the first placement component of the present invention is shown;

[0034] Figure 7 A schematic diagram of the fixed-axis component of the present invention is shown;

[0035] Figure 8 A schematic diagram of the feeding and coating assembly of the present invention is shown;

[0036] Figure 9 This diagram shows a partially enlarged schematic of the feeding and coating assembly of the present invention;

[0037] Figure 10 A schematic diagram of the feeding component and the adhesive coating component of the present invention is shown;

[0038] Figure 11 This diagram shows another perspective view of the feeding component and the adhesive coating component of the present invention;

[0039] As shown in the figure:

[0040] 100. Base plate;

[0041] 200. First placement assembly; 201. U-shaped base; 202. Horizontal slide rail; 203. U-shaped placement seat; 204. Roller; 205. Forward hydraulic rod; 206. Bend plate; 207. Angle motor; 208. Angle shaft; 209. Swing plate; 210. Sleeve; 211. L-shaped bent rod; 212. Positioning pneumatic rod; 213. Positioning pin block;

[0042] 300. Second placement component;

[0043] 400. First auger assembly; 401. First hollow rod; 402. First connecting shaft; 403. First pin groove; 404. Spline sleeve; 405. First auger blade;

[0044] 500. Second auger assembly; 501. Second hollow rod; 502. Second connecting shaft; 503. Second pin groove; 504. Spline rod; 505. Second auger blade;

[0045] 700. Feeding and gluing assembly; 701. Support rod; 702. Transverse guide rail; 703. Transverse screw; 704. Sleeve rod; 705. Y-shaped rod; 706. Forward push pneumatic rod; 707. Transverse motor; 708. T-shaped column; 709. Feeding track; 710. Lifting sleeve rod; 711. Reverse motor; 712. Hollow ring; 713. Vacuum suction cup; 714. Sealing ring gasket; 715. Feeding track; 716. Feeding plate; 717. Glue applying motor; 718. Glue applying cylinder; 719. Glue outlet; 720. Long rod; 721. Receiving tray. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0047] Example 1: To solve the technical problems in the background art, the following high coaxiality segmented screw shaft for a kiln feeding machine is provided, combined with... Figures 1-2 As shown, it includes: a first auger assembly 400 and a second auger assembly 500.

[0048] The first auger assembly 400 includes a first hollow rod 401, one end of which is fixedly connected to a first connecting shaft 402, the surface of which is provided with a first pin groove 403, the other end of which is fixedly connected to a spline sleeve 404, and the surface of which is fixedly connected to a first auger blade 405.

[0049] The second auger assembly 500 includes a second hollow rod 501, one end of which is fixedly connected to a second connecting shaft 502, the surface of which is provided with a second pin groove 503, the other end of which is fixedly connected to a spline rod 504 that mates with a spline sleeve, and the surface of which is fixedly connected to a second auger blade 505.

[0050] Through the above structure:

[0051] 1. The segmented design breaks down the long shaft into two sections, reducing the difficulty of machining a single shaft and avoiding excessive bending of the long shaft. The segmented structure facilitates single-shaft transportation and installation, reduces installation difficulty, and is compatible with feeding troughs of different lengths, improving equipment adaptability.

[0052] 2. A relatively short spiral conveyor body is formed by the first hollow rod, the first auger blade, the first connecting shaft, and the first pin groove;

[0053] 3. The first connecting shaft and the first pin groove can be used in conjunction with the external fixed shaft component to achieve circumferential positioning and locking of the entire auger, preventing rotational deviation during assembly;

[0054] 4. A spline sleeve is set at the other end as a mating end, forming a spline connection structure with another section of auger to ensure normal torque transmission after splicing. At the same time, the spline fit can improve the coaxiality of the mating.

[0055] Example 2, based on Example 1, presents a method for machining a high coaxiality segmented screw shaft for a kiln feeder, including the following steps:

[0056] S1. Perform quenching and tempering treatment on the front section of the first hollow rod and the rear section of the second hollow rod respectively. The quenching and tempering temperature is 850-900℃, and the holding time is 2-3 hours. After cooling, perform precision machining to ensure that the roundness error of the shaft is ≤0.02mm and the machining accuracy grade of the teeth of the spline rod and spline sleeve is ≥7.

[0057] S2. Rotate the first auger assembly and the second auger assembly respectively to ensure that the spline rod of the rear section of the second hollow rod is aligned with the spline hole of the front section of the first hollow rod and can be inserted axially so that the spline rod and the spline sleeve teeth are fully engaged.

[0058] S3. A high-temperature resistant adhesive layer is coated on the inner wall of the spline sleeve using a processing device. At the same time, a sealing ring gasket is installed on the surface of the spline rod, and the spline rod is pressed into the second mounting hole to achieve interference fit and adhesive fixation; the initial assembly is completed to form the entire helical shaft.

[0059] S4. Use a dial indicator to test the radial runout of the assembled screw shaft as a whole, and control the overall radial runout to be ≤0.03mm. If the runout exceeds the standard, calibrate by fine-tuning the installation position of the connectors or by applying adhesive.

[0060] S5. Install the calibrated spiral shaft into the feed trough of the TFT glass furnace feeder, connect the drive mechanism and transmission system, start the equipment for no-load test run, test the shaft rotation stability, and the feed amount fluctuation coefficient during load test run should be ≤±1%.

[0061] Example 3, as Figures 3-11 As shown, based on Embodiments 1 and 2, the following processing device for a high coaxiality segmented screw shaft for a kiln feeding machine is provided, comprising: a base plate 100, on which a first placement component 200 and a second placement component 300 are symmetrically mounted, on which a first auger component 400 is placed, on which a second auger component 500 is placed, and on which a feeding and gluing component 700 is mounted on one side of the top surface of the base plate 100, and the second placement component 300 adopts the same structure as the first placement component 200, and the second placement component 300 is symmetrically mounted with the first placement component 200.

[0062] Through the above structure:

[0063] 1. The first and second placement components can not only store the first and second auger components, but also fix the ends of the first and second auger components, so that the first and second auger components can move in opposite directions and connect the first and second auger components together to form a long auger set.

[0064] 2. The feeding and gluing assembly can not only apply glue to the inside of the spline sleeve, but also install an annular sealing gasket on the surface of the spline rod, making the installation of the first auger assembly and the second auger assembly more secure.

[0065] In this embodiment, the feeding and gluing assembly 700 includes a support rod 701. The support rod 701 is fixedly connected to the top surface of the base plate 100. A transverse guide rail 702 is fixedly connected to one side of the support rod 701. A transverse screw 703 is rotatably connected inside the transverse guide rail 702. A sleeve rod 704 is threadedly connected to the surface of the transverse screw 703. A Y-shaped rod 705 is slidably connected to one end of the sleeve rod 704. A forward-pushing pneumatic rod 706 is fixedly connected to the top surface of the Y-shaped rod 705 and located between the sleeve rods 704. A transverse movement motor 707 is fixedly connected to one end of the transverse guide rail 702. The output end of the transverse movement motor 707 is fixedly connected to the transverse screw 703. A feeding component and a gluing component are respectively installed on the bottom surface of the Y-shaped rod 705.

[0066] The feeding and gluing assembly uses a combination transmission structure of motor, screw, guide rail and pneumatic rod, which can realize the lateral movement and partial forward push of the workstation, and drive the feeding and gluing workstation to the assembly position with flexible movement and accurate positioning.

[0067] In this embodiment, the feeding component includes a T-shaped column 708 and a feeding track 709. The bottom surface of the Y-shaped rod 705 is fixedly connected to the feeding track 709. The bottom surface of the feeding track 709 is slidably connected to a lifting sleeve rod 710. A reverse motor 711 is fixedly connected to one side of the lifting sleeve rod 710. The output end of the reverse motor 711 is connected to a hollow ring 712 through a worm gear and worm wheel. A vacuum suction cup 713 is arranged in a circular array on one side of the hollow ring 712. The bottom surface of the base plate 100 is fixedly connected to the T-shaped column 708. A sealing ring gasket 714 is placed on the surface of the T-shaped column 708.

[0068] By adding a feeding track and lifting sleeve, the vacuum suction cup mechanism can be horizontally and vertically displaced, allowing it to approach / detach from the workpiece and adapt to the installation height and position of the sealing gasket.

[0069] The device uses a combination of a reverse motor, worm gear, hollow ring, and vacuum suction cup to grip the sealing ring gasket on the T-shaped column using vacuum adsorption. This ensures stable material handling and prevents the gasket from falling off. The motor, in conjunction with the transmission structure, can drive the suction cup and the ring gasket to rotate slightly, ensuring that the ring gasket is in the correct position.

[0070] The T-shaped column serves as a dedicated storage station for sealing ring gaskets, enabling the orderly storage of materials. Combined with the adsorption structure, it completes automated feeding, replacing manual operation, improving installation accuracy and efficiency, and ensuring coaxial fit between the ring gasket and the end of the spiral shaft.

[0071] In this embodiment, the glue application component includes a feed rail 715. The bottom surface of the Y-shaped rod 705 is fixedly connected to the feed rail 715. The bottom surface of the feed rail 715 is slidably connected to the feed plate 716. A glue application motor 717 is fixedly connected to one side of the feed plate 716. The output end of the glue application motor 717 is rotatably connected to a glue application cylinder 718 through a worm gear and worm wheel. The surface of the glue application cylinder 718 is provided with glue outlet holes 719 at equal intervals. A long rod 720 is fixedly connected to one side of the feed rail 715. One end of the long rod 720 is fixedly connected to a receiving tray 721.

[0072] The axial feeding of the glue-applying cylinder is achieved through a feed rail and a feed plate, which can accurately extend into the inside of the spline sleeve to ensure complete coverage of the mating surface in the glue-applying area.

[0073] The glue-applying motor and worm gear drive the glue-applying cylinder to rotate. Combined with the glue outlet holes at equal intervals on the cylinder body, the glue flows out evenly in the circumference, achieving uniform glue application throughout the inner wall and improving the bonding and sealing effect.

[0074] It comes with a long pole and a receiving tray to catch residual glue dripping during operation, preventing glue from contaminating the equipment and the site, while also reducing glue waste.

[0075] In this embodiment, the first placement component 200 includes a U-shaped base 201, a horizontal slide rail 202 symmetrically mounted on the top surface of the U-shaped base 201, a U-shaped placement seat 203 slidably connected to the top surface of the horizontal slide rail 202, a roller 204 symmetrically rotatably connected inside the U-shaped placement seat 203, a forward hydraulic rod 205 fixedly connected to the middle of the U-shaped base 201, the output end of the forward hydraulic rod 205 fixedly connected to the bottom surface of the U-shaped placement seat 203, an angle component mounted on one side of the U-shaped placement seat 203, and a fixed axis component mounted on one side of the angle component.

[0076] The system consists of a U-shaped base, a horizontal slide rail, a U-shaped placement seat, and rollers. The rollers support the auger, resulting in low frictional resistance and facilitating workpiece rotation and fine-tuning of its posture. The slide rail enables the placement seat to slide horizontally and guides it. In conjunction with the forward-extending hydraulic rod, the U-shaped placement seat is driven to move forward as a whole, causing the auger assemblies to move towards each other, thus completing the axial docking and insertion of the two auger sections.

[0077] In this embodiment, the angle component includes a bent plate 206. The bent plate 206 is fixedly connected to one side of the U-shaped placement seat 203. An angle motor 207 is fixedly connected to one side of the bent plate 206. The output end of the angle motor 207 is rotatably connected to an angle shaft 208 through a worm gear and worm wheel. One end of the angle shaft 208 is fixedly connected to a swing plate 209. A fixed shaft component is installed on one side of the swing plate 209.

[0078] By using the oscillating plate as the output end, the rear fixed shaft component and the entire auger are driven to deflect synchronously. In conjunction with the centering mechanism, the circumferential angle error is corrected, ultimately ensuring the smooth alignment of the spline structure.

[0079] In this embodiment, the fixed-axis component includes a sleeve 210 and an L-shaped bent rod 211. The sleeve 210 is fixedly connected to one side of the swing plate 209, and the L-shaped bent rod 211 is fixedly connected to the circumferential surface of the swing plate 209. A positioning pneumatic rod 212 is fixedly connected to one side of the L-shaped bent rod 211, and a positioning pin 213 is fixedly connected to the output end of the positioning pneumatic rod 212. The positioning pin 213 slides within the sleeve 210.

[0080] By inserting a positioning pin into the pin groove on the surface of the connecting shaft, the auger is rigidly locked in the circumference, maintaining a fixed posture throughout the assembly process, preventing rotational deviation, and ensuring the stability of the entire process of centering, gluing, and docking.

[0081] Working principle and usage process of this invention:

[0082] In use:

[0083] The first step involves placing the first auger assembly 400 on the first placement assembly 200, and then placing the second auger assembly 500 on top of the second placement assembly 300. During placement, both auger assemblies must be positioned above the two sets of rollers 204, while ensuring that the spline sleeve 404 of the first auger assembly 400 is aligned with the spline rod 504 of the second auger assembly 500.

[0084] The second step involves fixing the first auger assembly 400 to the first placement assembly 200, and then fixing the second auger assembly 500 to the second placement assembly 300. The fixing operation is as follows: The operator pushes the first auger assembly 400, inserting its first connecting shaft 402 into the sleeve 210; after the first connecting shaft 402 is fully inserted, the pushing is stopped. Then, the first auger assembly 400 is rotated, and the first pin groove 403 is adjusted to ensure it is concentric with the positioning pin block 213. After alignment, the positioning pneumatic rod 212 is activated, causing the positioning pin block 213 to move downwards and insert into the first pin groove 403, completing the positioning and fixing of the first auger assembly 400. The second auger assembly 500 is positioned and fixed in the same manner.

[0085] The third step involves applying adhesive to the inside of the spline sleeve 404 and installing the sealing ring gasket 714 on the surface of the spline rod 504. The process is as follows: Using the transverse guide rail 702 in conjunction with the forward-pushing pneumatic rod 706, the feeding and pushing components are moved to the ends of the spline sleeve 404 and spline rod 504. The feeding track 709 drives the hollow ring 712 and vacuum suction cup 713 to move horizontally, transporting the sealing ring gasket 714, which is held by the vacuum suction cup 713, to the surface of the spline rod 504. Then, the external vacuum pump is turned off, stopping the vacuuming of the hollow ring 712, and the vacuum suction cup 713 loses its suction, completing the installation of the sealing ring gasket 714. After installation, the feeding track 709 drives the vacuum suction cup 713 to reset. Simultaneously with the feeding component's operation, the feed track 715 moves the feed plate 716, causing the adhesive applicator 718 to insert into the spline sleeve 404. An external glue applicator injects glue into the glue applicator cylinder 718. The glue applicator motor 717 drives the glue applicator cylinder 718 to rotate, and the glue is evenly applied to the inner wall of the spline sleeve 404 from the glue outlet 719. After the glue application is completed, the glue applicator cylinder 718 returns to its original position with the feed rail 715, and the receiving tray 721 collects the dripping residual glue.

[0086] The fourth step is to assemble the first auger assembly 400 and the second auger assembly 500 into a single unit. Assembly operation: Activate the forward-extending hydraulic rods 205 within the first placement assembly 200 and the second placement assembly 300 respectively. The forward-extending hydraulic rods 205 drive the U-shaped placement seat 203 forward, thereby causing the first auger assembly 400 and the second auger assembly 500 to move towards each other, so that the splined rod 504 of the second auger assembly 500 inserts into the splined sleeve 404 of the first auger assembly 400. The two components are fitted with an interference fit and secured with adhesive, ultimately completing the overall connection and installation of the auger assembly.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high coaxiality segmented screw shaft for a kiln feeding machine, characterized in that, include: The first auger assembly includes a first hollow rod, one end of which is fixedly connected to a first connecting shaft, the surface of which is provided with a first pin groove, the other end of which is fixedly connected to a spline sleeve, and the surface of which is fixedly connected to a first auger blade. The second auger assembly includes a second hollow rod, one end of which is fixedly connected to a second connecting shaft, the surface of which is provided with a second pin groove, the other end of which is fixedly connected to a spline rod that mates with a spline sleeve, and the surface of which is fixedly connected to a second auger blade.

2. A method for machining a high coaxiality segmented spiral shaft for a kiln feeding machine as described in claim 1, characterized in that, include: S1. The front section of the first hollow rod and the rear section of the second hollow rod are heat-treated respectively. The heat treatment temperature is 850-900℃ and the holding time is 2-3 hours. After cooling, they are precision-machined to ensure that the roundness error of the shaft is ≤0.02mm and the machining accuracy grade of the teeth of the spline rod and spline sleeve is ≥7. S2. Rotate the first auger assembly and the second auger assembly respectively to ensure that the spline rod of the rear section of the second hollow rod is aligned with the spline hole of the front section of the first hollow rod and can be inserted axially so that the spline rod and the spline sleeve teeth are fully engaged. S3. A high-temperature resistant adhesive layer is coated on the inner wall of the spline sleeve using a processing device. At the same time, a sealing ring gasket is installed on the surface of the spline rod. The spline rod is then pressed into the second mounting hole to achieve an interference fit and adhesive fixation. This completes the initial assembly and forms the entire helical shaft. S4. Use a dial indicator to test the radial runout of the assembled screw shaft as a whole, and control the overall radial runout to be ≤0.03mm. If the runout exceeds the standard, calibrate by fine-tuning the installation position of the connectors or by applying adhesive. S5. Install the calibrated spiral shaft into the feed trough of the TFT glass furnace feeder, connect the drive mechanism and transmission system, start the equipment for no-load test run, test the shaft rotation stability, and the feed amount fluctuation coefficient during load test run should be ≤±1%.

3. A processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine as described in claim 1, characterized in that, include: A base plate, on the top surface of which a first placement component and a second placement component are symmetrically mounted. A first auger component is placed on the top surface of the first placement component, and a second auger component is placed on the top surface of the second placement component. A material feeding and gluing component is mounted on one side of the top surface of the base plate. The second placement component adopts the same structure as the first placement component, and the second placement component is symmetrically mounted with the first placement component.

4. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 3, characterized in that, The feeding and gluing assembly includes a support rod. The support rod is fixedly connected to the top surface of the base plate. A transverse guide rail is fixedly connected to one side of the support rod. A transverse screw is rotatably connected inside the transverse guide rail. A sleeve rod is threadedly connected to the surface of the transverse screw rod. A Y-shaped rod is slidably connected to one end of the sleeve rod. A forward-pushing pneumatic rod is fixedly connected to the top surface of the Y-shaped rod and located between the sleeve rods. A transverse motor is fixedly connected to one end of the transverse guide rail. The output end of the transverse motor is fixedly connected to the transverse screw rod. A feeding component and a gluing component are respectively installed on the bottom surface of the Y-shaped rod.

5. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 4, characterized in that, The feeding component includes a T-shaped column and a feeding track. The bottom surface of the Y-shaped rod is fixedly connected to the feeding track, and the bottom surface of the feeding track is slidably connected to a lifting sleeve. A reverse motor is fixedly connected to one side of the lifting sleeve. The output end of the reverse motor is connected to a hollow ring through a worm gear and worm wheel. Vacuum suction cups are arranged in a circular array on one side of the hollow ring. The bottom surface of the base plate is fixedly connected to the T-shaped column, and a sealing ring gasket is placed on the surface of the T-shaped column.

6. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 5, characterized in that, The adhesive application component includes a feed rail, the bottom surface of the Y-shaped rod is fixedly connected to the feed rail, the bottom surface of the feed rail is slidably connected to a feed plate, one side of the feed plate is fixedly connected to an adhesive application motor, the output end of the adhesive application motor is rotatably connected to an adhesive application cylinder through a worm gear and worm wheel, the surface of the adhesive application cylinder is provided with adhesive outlet holes at equal intervals, one side of the feed rail is fixedly connected to a long rod, and one end of the long rod is fixedly connected to a receiving tray.

7. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 6, characterized in that, The first placement assembly includes a U-shaped base, a horizontal slide rail symmetrically mounted on the top surface of the U-shaped base, a U-shaped placement seat slidably connected to the top surface of the horizontal slide rail, rollers symmetrically rotatably connected inside the U-shaped placement seat, a forward hydraulic rod fixedly connected to the middle of the U-shaped base, the output end of the forward hydraulic rod being fixedly connected to the bottom surface of the U-shaped placement seat, an angle component mounted on one side of the U-shaped placement seat, and a fixed axis component mounted on one side of the angle component.

8. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 7, characterized in that, The angle component includes a bent plate. The bent plate is fixedly connected to one side of the U-shaped placement seat. An angle motor is fixedly connected to one side of the bent plate. The output end of the angle motor is rotatably connected to an angle shaft through a worm gear and worm wheel. A swing plate is fixedly connected to one end of the angle shaft. A fixed shaft component is installed on one side of the swing plate.

9. The processing device for a high coaxiality segmented spiral shaft for a kiln feeding machine according to claim 8, characterized in that, The fixed-axis component includes a sleeve and an L-shaped bent rod. The sleeve is fixedly connected to one side of the swing plate, and the L-shaped bent rod is fixedly connected to the circumferential surface of the swing plate. A positioning pneumatic rod is fixedly connected to one side of the L-shaped bent rod, and a positioning pin is fixedly connected to the output end of the positioning pneumatic rod. The positioning pin slides inside the sleeve.

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