An automatic polishing device for hotel metal furniture

Abstract

The present application relates to the technical field of workpiece polishing, in particular to an automatic polishing device for hotel metal furniture, comprising a rack, a vertical column fixedly installed at the upper end of the rack, a moving part one and a moving part two installed at the upper end of the vertical column, and a polishing mechanism installed on the moving part two; a processing table fixedly installed at the upper end of the rack, an upper feeding guide groove, a parallel guide plate and a lower feeding guide groove fixedly installed at the upper end of the processing table, the upper feeding guide groove, the parallel guide plate and the lower feeding guide groove being fixedly connected as a whole, and the parallel guide plate being located between the upper feeding guide groove and the lower feeding guide groove. The present application is applied to intelligent manufacturing equipment for hotel metal furniture production, and can automatically complete the whole process operation of short pipe feeding, distribution, clamping polishing, unloading and waste collection. The linkage of each mechanism of the equipment is smooth, the operation is stable, manual intervention is not needed, the device can be adapted to large-batch processing scenes, and the pipe polishing precision and product quality are effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of workpiece grinding technology, specifically to an automated grinding device for hotel metal furniture. Background Technology

[0002] In hotel metal furniture and related products, short metal tubes (such as towel rings, napkin rings, furniture connecting tubes, decorative rings, etc.) are common structural or functional components. During processing, the ends of these short tubes need to be ground to remove burrs and sharp edges from cutting and to chamfer them, thus meeting the stringent requirements of hotel products for surface safety and smoothness. With the gradual application of intelligent manufacturing equipment in the metal furniture industry, more and more processing steps have become automated; however, the level of automation for the end-grinding of small-sized, high-volume short tube parts still needs improvement.

[0003] Currently, the grinding of the ends of the aforementioned short tubes typically involves manually placing each tube individually into a fixture on the grinding platform and securing each tube before starting the grinding operation. This method is not only cumbersome and time-consuming, but also highly dependent on manual loading, unloading, and clamping, making it difficult to integrate with upstream tube cutting or downstream polishing processes to form a continuous automated production line. The lack of automated loading, positioning, and clamping mechanisms significantly restricts overall processing efficiency, failing to meet the requirements of intelligent manufacturing equipment for efficient, continuous, and minimally staffed production. This also hinders the automation upgrade of the end-processing stage for short tube parts in hotel metal furniture. Summary of the Invention

[0004] The purpose of this invention is to provide an automated grinding device for hotel metal furniture, so as to solve the problem mentioned in the background art of the inability to automatically feed, position and clamp large batches of short tube workpieces.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated polishing device for hotel metal furniture, comprising a frame, a column fixedly installed at the upper end of the frame, a movable part one and a movable part two installed at the upper end of the column, and a polishing mechanism installed on the movable part two; a processing table fixedly installed at the upper end of the frame, a feeding guide groove, a parallel guide plate and a discharging guide groove fixedly installed at the upper end of the processing table, the feeding guide groove, the parallel guide plate and the discharging guide groove being fixedly connected as one unit, and the parallel guide plate being located between the feeding guide groove and the discharging guide groove; a mounting block slidably connected to the upper end of the processing table, a lifting plate slidably connected to the side of the mounting block, an arc-shaped abutment block one fixedly connected to the top of the lifting plate, a fixing rod fixedly connected to the side of the lifting plate, a slider three slidably connected to the body of the fixing rod, and an arc-shaped abutment block two fixedly connected to the top of the slider three; a limiting plate provided below the lifting plate, a limiting top rod two and a limiting stop strip fixedly connected to the upper end of the limiting plate.

[0006] Furthermore, the moving part 1 is composed of a mounting plate, a driving part 1, a threaded rod 1, and a slider 1. The mounting plate is fixedly mounted on the upper end of the column, the driving part 1 is fixedly mounted on the end of the mounting plate, the output end of the driving part 1 is fixedly connected to the threaded rod 1, and the slider 1 is threadedly connected to the body of the threaded rod 1 located on the moving part 1.

[0007] Furthermore, the second moving part consists of a fixed plate, a second driving part, and a second slider. The fixed plate is fixedly installed on the upper end of the first slider, the second driving part is fixedly installed on the end of the fixed plate, the output end of the second driving part is fixedly connected to a second threaded rod, the second slider is threadedly connected to the body of the second threaded rod located on the second moving part, and the grinding mechanism is fixedly installed on the side end of the second slider.

[0008] Furthermore, a collection hopper is fixedly connected to the bottom surface of the processing table, a collection box located directly below the collection hopper is fixedly installed on the upper surface of the frame, and a slot is provided at the upper end of the parallel guide plate.

[0009] Furthermore, a drive unit three is fixedly installed on the upper surface of the processing table, a threaded rod three is fixedly connected to the output end of the drive unit three, a sliding plate is threadedly connected to the body of the threaded rod three, a guide rod is fixedly connected to the upper surface of the processing table, the end of the sliding plate away from the threaded rod three is slidably connected to the guide rod, and the mounting block is fixedly connected to the middle of the sliding plate.

[0010] Furthermore, a cylinder is fixedly installed on the inner wall of the collection hopper, and the bottom surface of the limiting plate is fixedly connected to the output end of the cylinder.

[0011] Furthermore, a sliding groove is provided at one end of the mounting block near the lifting plate. A connecting rod is fixedly connected between the top and bottom walls of the sliding groove. A connecting block is movably inserted into the rod. The end of the connecting block away from the connecting rod is fixedly connected to the lifting plate. A second spring is fixedly connected between the connecting block and the bottom wall of the sliding groove. The second spring is sleeved on the rod.

[0012] Furthermore, a first spring is fixedly connected between the lifting plate and the slider three. The first spring is sleeved on the body of the fixed rod. There are two sets of fixed rods, and the two sets of fixed rods are symmetrically arranged about the arc-shaped abutment block one.

[0013] Furthermore, the upper end of the processing table is provided with a limiting top rod and a pull plate, and the interior of the processing table is provided with two sets of electric push rods, the output ends of the two sets of electric push rods being fixedly connected to the limiting top rod and the pull plate, respectively.

[0014] Furthermore, an extension block is fixedly connected to the side of the lifting plate, a retraction rod is fixedly connected to the upper surface of the processing table, a pressing plate is movably inserted into the rod of the retraction rod, a pressing block is fixedly connected to the end of the pressing plate away from the retraction rod, a third spring is sleeved on the rod of the retraction rod, one end of the third spring is fixedly connected to the end of the retraction rod, the other end of the third spring abuts against the side of the pressing plate, a movable groove is opened at the upper end of the pressing plate, and the pull plate moves within the groove of the movable groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The automated grinding device for the hotel's metal furniture integrates automatic feeding, material distribution, positioning and clamping with grinding functions into one unit. It eliminates the traditional manual clamping of pipes and realizes full automation of the grinding process for short metal pipes, greatly reducing manual input and effectively improving overall processing efficiency. At the same time, the internal and external clamping structure is used to fix the pipes, which can effectively prevent the pipes from shifting during the grinding process and ensure stable grinding quality of the products.

[0017] 2. The automated grinding device for the hotel's metal furniture is equipped with an independent waste collection component, which can collect metal shavings generated during grinding in real time, reducing the impact of waste on the moving parts of the equipment; the entire transmission, clamping, and conveying mechanism operates stably in a cycle, and as an intelligent manufacturing equipment, it can operate continuously for a long time without interruption, reducing the probability of equipment failure, reducing downtime for maintenance, and further improving the operating efficiency of the entire furniture production line. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram of part A in the middle;

[0022] Figure 5 This is a schematic diagram of the processing table of the present invention;

[0023] Figure 6 This is a schematic diagram of the feeding guide groove in this invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B;

[0025] Figure 8 This is a schematic diagram of the structure of arc-shaped abutment block one and arc-shaped abutment block two in this invention;

[0026] Figure 9 This is a cross-sectional view of the mounting block in this invention;

[0027] Figure 10 This is a cross-sectional view of the pressing plate in this invention.

[0028] In the attached diagram, the components represented by each number are as follows:

[0029] 1. Frame; 2. Collection box; 3. Processing table; 4. Collection hopper; 5. Column; 6. Moving part one; 601. Mounting plate; 602. Drive part one; 603. Threaded rod one; 604. Slider one; 7. Moving part two; 701. Fixing plate; 702. Drive part two; 703. Slider two; 704. Threaded rod two; 8. Feeding guide groove; 9. Parallel guide plate; 901. Slotting; 10. Discharge guide groove; 11. Drive part three; 12. Threaded rod three; 13. Guide rod; 14. Sliding plate; 5. Limiting rod one; 16. Limiting rod two; 17. Mounting block; 18. Lifting plate; 19. Arc-shaped stop block one; 20. Extending block; 21. Fixing rod; 22. First spring; 23. Slider three; 24. Arc-shaped stop block two; 25. Slide groove; 26. Connecting block; 27. Connecting rod; 28. Second spring; 29. ​​Pressing plate; 30. Pressing block; 31. Pull plate; 32. Movable groove; 33. Retraction rod; 34. Third spring; 35. Limiting plate; 36. Limiting stop bar; 37. Grinding mechanism. Detailed Implementation

[0030] 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.

[0031] This invention provides a technical solution: such as Figure 1 - Figure 10 An automated polishing device for hotel metal furniture is shown, comprising a frame 1, a column 5 fixedly mounted on the upper end of the frame 1, a first movable part 6 and a second movable part 7 mounted on the upper end of the column 5, and a polishing mechanism 37 mounted on the second movable part 7; a processing table 3 fixedly mounted on the upper end of the frame 1, and a feeding guide 8, a parallel guide plate 9 and a discharging guide 10 fixedly mounted on the upper end of the processing table 3, the feeding guide 8, the parallel guide plate 9 and the discharging guide 10 being fixedly connected as one unit, and the parallel guide plate 9 being located between the feeding guide 8 and the discharging guide 10. Between the guide grooves 10; the upper end of the processing table 3 is slidably connected to the mounting block 17, the side of the mounting block 17 is slidably connected to the lifting plate 18, the top of the lifting plate 18 is fixedly connected to the arc-shaped abutment block 19, the side of the lifting plate 18 is fixedly connected to the fixing rod 21, the body of the fixing rod 21 is slidably connected to the slider 3 23, the top of the slider 3 23 is fixedly connected to the arc-shaped abutment block 24; a limiting plate 35 is provided below the lifting plate 18, and the upper end of the limiting plate 35 is fixedly connected to the limiting top rod 2 16 and the limiting stop bar 36.

[0032] In this invention, the frame 1 is the basic supporting structure of the entire equipment. All components are assembled and fixed based on the frame 1. The equipment as a whole serves as an intelligent manufacturing equipment for hotel metal furniture processing, and its overall layout is designed around the production needs of automated grinding of short metal pipe fittings. The column 5 is vertically fixed to the upper surface of the frame 1, mainly providing stable support points for the first moving part 6, the second moving part 7, and the grinding mechanism 37, ensuring that the upper moving components do not shake during reciprocating operation and grinding work. The first moving part 6 and the second moving part 7 are assembled in layers on the top of the column 5. The two sets of moving components cooperate with each other, enabling the grinding mechanism 37 to move flexibly in different positions to match the grinding requirements of pipe fittings in different locations.

[0033] The processing table 3 is fixed above the frame 1 and serves as the core platform for pipe storage, conveying, positioning, clamping, and grinding operations. Above the processing table 3, the loading guide 8, parallel guide plate 9, and unloading guide 10 are integrated into a single structure. The loading guide 8 features an inclined design, allowing short pipes to be processed, conveyed by an external conveyor belt, to slide down autonomously under their own weight, achieving automated loading and perfectly aligning with the design concept of unmanned operation in intelligent manufacturing equipment. The parallel guide plate 9 is positioned between the loading guide 8 and the unloading guide 10, primarily used to regulate the sliding pipes, ensuring all pipes maintain a uniform orientation as they move forward, preventing tilting or tipping and avoiding impact on subsequent positioning and grinding processes.

[0034] Mounting block 17 can slide smoothly on the surface of processing table 3 and is the main mounting base for the inner clamping assembly of the pipe fitting. Lifting plate 18 is slidably assembled on the side of mounting block 17 and can perform vertical lifting and lowering movements. The arc-shaped abutment 19 at the top of lifting plate 18 mainly extends into the inside of the pipe fitting to support and push it. Two sets of fixing rods 21 are symmetrically arranged on the side of lifting plate 18. Sliding block 23 is fitted on the fixing rods 21 and can slide freely. The arc-shaped abutment 24 at the top of sliding block 23 cooperates with arc-shaped abutment 19 to form a multi-point clamping structure inside the pipe fitting. Limiting plate 35 is arranged directly below lifting plate 18 and is driven by an independent cylinder to achieve overall lifting and lowering. The limiting top rod 16 and limiting stop 36 at the upper end of limiting plate 35 will limit and tighten the pipe fitting from the outside before grinding. It cooperates with the arc-shaped abutment on the inside to complete the bidirectional fixation of the pipe fitting inside and outside.

[0035] refer to Figure 1 - Figure 10The first movable part 6 consists of a mounting plate 601, a drive unit 602, a threaded rod 603, and a slider 604. The mounting plate 601 is fixedly mounted on the upper end of the column 5, and the drive unit 602 is fixedly mounted on the end of the mounting plate 601. The output end of the drive unit 602 is fixedly connected to the threaded rod 603, and the slider 604 is threadedly connected to the body of the threaded rod 603 located on the first movable part 6. The second movable part 7 consists of a fixed plate 701, a drive unit 702, and a slider 703. The fixed plate 701 is fixedly mounted on the upper end of the slider 604, and the drive unit 702 is fixedly mounted on the end of the fixed plate 701. The output end of the drive unit 702 is fixedly connected to the threaded rod 604, and the slider 604 is threadedly connected to the body of the threaded rod 603 located on the second movable part 6. A slider 703 is threadedly connected to the shaft of the second groove rod 704, and a grinding mechanism 37 is fixedly installed on the side end of the slider 703; a collection hopper 4 is fixedly connected to the bottom surface of the processing table 3, and a collection box 2 located directly below the collection hopper 4 is fixedly installed on the upper surface of the frame 1, with a slot 901 opened at the upper end of the parallel guide plate 9; a drive unit 11 is fixedly installed on the upper surface of the processing table 3, and a threaded rod 12 is fixedly connected to the output end of the drive unit 11, with a sliding plate 14 threadedly connected to the shaft of the threaded rod 12, and a guide rod 13 is fixedly connected to the upper surface of the processing table 3, with one end of the sliding plate 14 away from the threaded rod 12 slidably connected to the guide rod 13, and a mounting block 17 is fixedly connected to the middle of the sliding plate 14; a collection hopper 4 is fixedly installed on the inner side wall. The cylinder has a bottom surface of the limiting plate 35 fixedly connected to the output end of the cylinder; the mounting block 17 has a slide groove 25 at one end near the lifting plate 18, and a connecting rod 27 is fixedly connected between the top and bottom walls of the slide groove 25. A connecting block 26 is movably inserted into the rod of the connecting rod 27, and the end of the connecting block 26 away from the connecting rod 27 is fixedly connected to the lifting plate 18. A second spring 28 is fixedly connected between the connecting block 26 and the bottom wall of the slide groove 25, and the second spring 28 is sleeved on the rod of the connecting rod 27; a first spring 22 is fixedly connected between the lifting plate 18 and the slider 23, and the first spring 22 is sleeved on the rod of the fixed rod 21. There are two sets of fixed rods 21, and the two sets of fixed rods 21 are symmetrically arranged about the arc-shaped abutment 19; the processing table 3 The upper end is provided with a limiting top rod 15 and a pull plate 31 respectively. The inside of the processing table 3 is provided with two sets of electric push rods. The output ends of the two sets of electric push rods are fixedly connected to the limiting top rod 15 and the pull plate 31 respectively. The side of the lifting plate 18 is fixedly connected with an extension block 20. The upper surface of the processing table 3 is fixedly connected with a retraction rod 33. A pressing plate 29 is movably inserted into the rod body of the retraction rod 33. A pressing block 30 is fixedly connected to the end of the pressing plate 29 away from the retraction rod 33. A third spring 34 is sleeved on the rod body of the retraction rod 33. One end of the third spring 34 is fixedly connected to the end of the retraction rod 33. The other end of the third spring 34 abuts against the side of the pressing plate 29. The upper end of the pressing plate 29 is provided with a movable groove 32. The pull plate 31 moves in the groove of the movable groove 32.

[0036] In this invention, the mounting plate 601 of the moving part 6 serves as a supporting component, securely mounting the driving part 602 and the threaded rod 603. After the driving part 602 operates, it drives the threaded rod 603 to rotate continuously. Relying on the threaded engagement transmission method, it drives the slider 604 to move linearly along the shaft of the threaded rod 603, achieving lateral position adjustment. The moving part 7 moves along with the slider 604. The fixing plate 701 provides an installation position for the driving part 702. The driving part 702 drives the matching threaded rod 704 to rotate, thereby driving the slider 703 to move, and the grinding mechanism 37 completes its position adjustment accordingly. The two sets of moving mechanisms work together in a coordinated manner, allowing the grinding mechanism 37 to accurately align with the grinding position of the pipe. The entire transmission structure operates smoothly and can meet the requirements of long-term continuous operation of intelligent manufacturing equipment.

[0037] The collection hopper 4 at the bottom of the processing table 3 corresponds vertically to the collection box 2 on the frame 1. Metal shavings and dust generated during pipe grinding will naturally fall downwards, be collected by the collection hopper 4, and then fall into the collection box 2, achieving unified collection of waste materials. This not only keeps the work area clean but also prevents shavings from entering the gaps in the equipment movement and causing blockages. The drive unit 3 11, the threaded rod 3 12, and the guide rod 13 cooperate with each other. The guide rod 13 guides and limits the sliding plate 14 to prevent it from deviating during movement. The forward and reverse rotation of the drive unit 3 11 can drive the sliding plate 14 to move back and forth, thereby pushing the mounting block 17 to complete the pipe conveying action.

[0038] The cylinder inside the collecting hopper 4 directly controls the lifting and lowering of the limiting plate 35. When the cylinder extends, the limiting plate 35 rises, driving the limiting top rod 16 and the limiting stop bar 36 into the working state. When the cylinder retracts, the whole structure lowers, releasing the outer limiting. A connecting rod 27 is fixed in the sliding groove 25 on the side of the mounting block 17. The connecting block 26 can slide on the connecting rod 27. The second spring 28 is normally in a pre-compressed state, lifting the connecting block 26 and the lifting plate 18. Only when subjected to a downward external force will the lifting plate 18 drive the connecting block 26 to slide down and compress the second spring 28. After the external force disappears, the spring automatically resets.

[0039] The first spring 22 is connected between the lifting plate 18 and the slider 23. When the slider 23 is blocked and slides outward, it stretches the first spring 22. After the blockage is released, the first spring 22 rebounds, causing the slider 23 to reset, so that the arc-shaped stop block 24 always remains in an inwardly pressed state. The two sets of electric push rods inside the processing table 3 control the lifting and lowering of the limiting push rod 15 and the pull plate 31, respectively. The limiting push rod 15 mainly plays the role of distributing and blocking the flow of materials, while the pull plate 31 works with the pressing plate 29 to complete the temporary pressing action of the lifting plate 18. The retraction rod 33, the pressing plate 29, the pressing block 30 and the third spring 34 form the pressing assembly. The third spring 34 always supports the pressing plate 29. The pull plate 31 moves in the movable groove 32 and will not interfere with the pressing plate 29. It should be noted that: Reference Figure 10 The pressing plate 29 can slide horizontally on the retraction rod 33, and it can also slide up and down. The groove on the pressing plate 29 is a rounded rectangle.

[0040] Furthermore, both moving parts 6 and 7 employ a threaded drive structure, ensuring controllable travel and high positioning accuracy. This allows for rapid position adjustments for short metal pipes of varying specifications used in hotel furniture, effectively enhancing the versatility of the intelligent manufacturing equipment and reducing adjustment time during product changeovers. The threaded rod rotates without impact or shaking, guaranteeing uniformity in the grinding process and preventing uneven grinding depths on the pipes.

[0041] Furthermore, both the loading guide 8 and the unloading guide 10 adopt an inclined structure, relying on the self-weight of the pipe fittings to achieve automatic loading and unloading. No manual handling of the pipe fittings is required throughout the process, truly realizing the production goals of unmanned and automated intelligent manufacturing equipment. The slot 901 on the parallel guide plate 9 can avoid the movement trajectory of the arc-shaped abutment block 19 and arc-shaped abutment block 24, preventing components from colliding and jamming, ensuring a smooth and unobstructed pipe fitting conveying process.

[0042] Furthermore, the first spring 22, the second spring 28, and the third spring 34 equipped in the device have clearly defined functions, respectively undertaking the roles of reset, clamping, and buffering. After the pipe clamping, component pressing, and slider displacement are completed, each type of spring can quickly drive the corresponding component back to its initial position, ensuring that the entire clamping and conveying mechanism can operate continuously in a cycle, adapting to the production needs of large-volume pipe grinding.

[0043] Furthermore, the limit rod 15 is driven to rise by an electric actuator. After rising, it embeds into the inner ring of the pipe fitting, preventing the pipe fitting behind from continuing to slide down. This allows for the sequential discharge of single pipe fittings, avoiding the stacking and congestion of multiple pipe fittings, and keeping the feeding and grinding rhythm synchronized. The electric actuator has a rapid response and smooth start and stop, accurately coordinating with the entire automated process to complete the material distribution work.

[0044] Furthermore, the collection bucket 4 and the collection box 2 form an integrated waste collection structure, which can collect metal shavings generated by grinding in real time. This not only improves the workshop production environment, but also reduces the wear of shavings on the transmission and sliding parts of the equipment, reduces the probability of equipment failure, and extends the continuous operation time of intelligent manufacturing equipment.

[0045] Furthermore, the cylinder can be installed on the bottom surface of the processing table 3 or the outside of the collection hopper 4, and the limit plate 35 can be raised and lowered through the vertical rod and connecting rod structure to avoid the area where waste chips fall.

[0046] Working principle: This equipment is a typical intelligent manufacturing equipment in hotel metal furniture production lines. It can automatically complete the entire process of feeding, distributing, positioning and clamping, end grinding, unloading, and waste collection of short metal tubes. The various mechanical structures operate in conjunction with preset logic. The specific working process is as follows:

[0047] During equipment operation, moving part 6 and moving part 7 work together to control the grinding mechanism 37 to complete positional movement, and their motion principles are consistent. When moving part 6 is working, drive part 602 drives threaded rod 603 to rotate, and threaded rod 603 drives slider 604 to move along the rod. When moving part 7 is working, drive part 702 drives its own threaded rod 704 to rotate, which in turn drives slider 703 to move, ultimately realizing multi-angle displacement of the grinding mechanism 37 to align with the pipe grinding station. The metal shavings generated during pipe grinding fall downwards, are collected by collection hopper 4, and then fall into collection box 2, completing the unified collection of waste.

[0048] Short pipes to be processed are continuously conveyed to the loading guide chute 8 by an external conveyor belt. The loading guide chute 8 is inclined downwards, and the short pipes to be processed falling on the loading guide chute 8 will slide down the inclined surface autonomously and finally fall onto the parallel guide plate 9. Under normal operation, in addition to the short pipe being ground, two short pipes to be processed remain on the parallel guide plate 9, which are in contact with each other. The pipe closer to the loading guide chute 8 is blocked and limited by the limiting rod 15. The electric push rod inside the processing table 3 drives the limiting rod 15 to lift upwards, and the limiting rod 15 fits against the inner ring of the pipe, blocking the subsequent pipes sliding down the loading guide chute 8 and preventing the pipes from piling up continuously.

[0049] When the grinding operation officially begins, the pipe fittings are first transported and fed. Drive unit 311 starts, driving threaded rod 312 to rotate. Threaded rod 312 drives sliding plate 14 to slide on guide rod 13. Sliding plate 14 then pushes mounting block 17 and lifting plate 18 towards the feeding guide groove 8. When mounting block 17 and lifting plate 18 are about to move below the first short pipe fitting to be processed, but have not yet reached their corresponding positions, the protruding block 20 on the side of lifting plate 18 moves directly below pressing block 30, and the protruding block 20 and pressing block 30 abut against each other and fit tightly together.

[0050] At this time, the corresponding electric actuator inside the processing table 3 is activated, controlling the pull plate 31 to move downward. A spring is sleeved on the output rod of the electric actuator (the pull plate 31 presses down on the pressing plate 29 and compresses the spring; when the pull plate 31 stops pressing down on the pressing plate 29, the spring resets the pressing plate 29). The two ends of the spring abut against the upper surface of the processing table 3 and the bottom surface of the pressing plate 29, respectively, serving only as elastic support and not fixedly connected to the side components. After the pull plate 31 moves down, it presses down on the pressing plate 29. The pressing plate 29 drives the pressing block 30 to move down synchronously. The pressing block 30 presses down on the protruding block 20, and the protruding block 20 moves down under force, synchronously driving the lifting plate 18 and the arc-shaped abutment block 19 to move down. During the downward movement of the lifting plate 18, the connecting block 26 slides down along the connecting rod 27, while compressing the second spring 28. When the arc-shaped stop block 19 moves down to the lowest point, the arc-shaped stop block 19 is located below the bottom surface of the short pipe to be processed on the parallel guide plate 9, and will not obstruct the pipe. The mounting block 17 and the lifting plate 18 can continue to move forward. During this process, the pull plate 31 always slides inside the movable groove 32 of the pressing plate 29, and there will be no interference between the parts.

[0051] After the lifting plate 18 moves directly below the first short pipe to be processed, the electric push rod controlling the pull plate 31 resets, the pull plate 31 returns to its original position, and the pressing plate 29 and pressing block 30 reset synchronously under the action of the third spring 34. The pressing block 30 no longer presses against the protruding block 20. The second spring 28 is released from compression and rebounds, driving the connecting block 26, the lifting plate 18, and the arc-shaped abutment block 19 to reset upwards together. At this time, the arc-shaped abutment block 19 extends into the pipe body of the first short pipe to be processed.

[0052] Subsequently, the drive unit 311 controls the threaded rod 312 to rotate in the opposite direction, and the sliding plate 14 drives the mounting block 17, the lifting plate 18, and the arc-shaped stop block 19 to move away from the feeding guide 8. Before this, the electric actuator first controls the limiting rod 15 to move downward, releasing the obstruction to the pipe. As the arc-shaped stop block 19 moves, it pushes the first short pipe to be processed in the processing direction. Under the action of the inclined surface of the feeding guide 8 and the gravity of the pipe, the short pipe to be processed on the feeding guide 8 slides smoothly to the empty position of the parallel guide plate 9. When the newly slid-down pipe is about to reach the original position of the pipe, the electric actuator drives the limiting rod 15 to move upward again, completing the limiting obstruction again.

[0053] As the arc-shaped abutment 19 pushes the short pipe to be processed towards the grinding direction, the cylinder inside the collecting hopper 4 is activated (the cylinder is an existing waterproof cylinder), pushing the limiting plate 35 upward. The limiting rod 2 16 and the limiting stop 36 move upward synchronously with the limiting plate 35. The limiting stop 36 blocks the forward path of the slider 3 23. After being blocked, the slider 3 23 moves away from the lifting plate 18 along the fixed rod 21, while stretching the first spring 22. When the slider 3 23 moves to its maximum stroke, the limiting rod 2 16 just abuts against the outer wall of the short pipe to be processed. The arc-shaped abutment 19 and the two arc-shaped abutments 24 are tightly abutted against the inner wall of the short pipe to be processed. The arc-shaped abutment 19 and the two arc-shaped abutments 24 form a triangular support structure. Together with the outer limiting rod 2 16, the pipe is clamped and fixed from both the inside and outside, ensuring that the pipe will not shift when the grinding mechanism 37 is operating.

[0054] After the pipe fitting is positioned, the moving part 1 6 and the moving part 2 7 work together to drive the grinding mechanism 37 to complete the end grinding. After the grinding process is completed, the cylinder controls the limit plate 35 to reset downwards, the limit rod 2 16 and the limit stop 36 descend accordingly, the slider 3 23 loses its obstruction, the first spring 22 rebounds and drives the slider 3 23 and the arc-shaped stop block 2 24 to reset, releasing the outer limit of the pipe fitting.

[0055] The drive unit 311 is restarted, and the transmission between the threaded rod 312 and the sliding plate 14 drives the arc-shaped abutment 19 to continue moving away from the feeding guide 8, pushing the already ground short pipe forward. The slot 901 on the parallel guide plate 9 can avoid the movement paths of the arc-shaped abutment 19 and the arc-shaped abutment 24, ensuring the smooth passage of the pipe. Finally, the ground pipe is conveyed to the unloading guide 10 and automatically unloaded along the slope of the unloading guide 10. Subsequent pipes to be processed repeat all the above actions in sequence, realizing continuous automated grinding operation of the equipment.

[0056] 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 a process, method, article, or apparatus.

[0057] 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. An automated polishing device for hotel metal furniture, comprising a frame (1), characterized in that: The upper end of the frame (1) is fixedly installed with a column (5), and the upper end of the column (5) is equipped with a moving part one (6) and a moving part two (7), and a grinding mechanism (37) is installed on the moving part two (7). A processing table (3) is fixedly installed on the upper end of the frame (1). A feeding guide groove (8), a parallel guide plate (9) and a discharging guide groove (10) are fixedly installed on the upper end of the processing table (3). The feeding guide groove (8), the parallel guide plate (9) and the discharging guide groove (10) are fixedly connected as one unit, and the parallel guide plate (9) is located between the feeding guide groove (8) and the discharging guide groove (10). The upper end of the processing table (3) is slidably connected to an installation block (17), the side of the installation block (17) is slidably connected to a lifting plate (18), the top of the lifting plate (18) is fixedly connected to an arc-shaped stop block one (19), the side of the lifting plate (18) is fixedly connected to a fixing rod (21), the body of the fixing rod (21) is slidably connected to a slider three (23), and the top of the slider three (23) is fixedly connected to an arc-shaped stop block two (24). A limiting plate (35) is provided below the lifting plate (18), and a limiting top rod (16) and a limiting stop bar (36) are fixedly connected to the upper end of the limiting plate (35).

2. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: The moving part (6) consists of a mounting plate (601), a driving part (602), a threaded rod (603), and a slider (604). The mounting plate (601) is fixedly mounted on the upper end of the column (5). The driving part (602) is fixedly mounted on the end of the mounting plate (601). The output end of the driving part (602) is fixedly connected to the threaded rod (603). The slider (604) is threadedly connected to the body of the threaded rod (603) located on the moving part (6).

3. The automated polishing device for hotel metal furniture according to claim 2, characterized in that: The second moving part (7) is composed of a fixed plate (701), a second driving part (702) and a second slider (703). The fixed plate (701) is fixedly installed on the upper end of the first slider (604). The second driving part (702) is fixedly installed on the end of the fixed plate (701). The output end of the second driving part (702) is fixedly connected to a second threaded rod (704). The second slider (703) is threadedly connected to the body of the second threaded rod (704) located on the second moving part (7). The grinding mechanism (37) is fixedly installed on the side end of the second slider (703).

4. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: The bottom surface of the processing table (3) is fixedly connected to a collection hopper (4), and the upper surface of the frame (1) is fixedly installed with a collection box (2) located directly below the collection hopper (4). The upper end of the parallel guide plate (9) is provided with a slot (901).

5. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: The upper surface of the processing table (3) is fixedly mounted with a drive unit three (11), the output end of the drive unit three (11) is fixedly connected with a threaded rod three (12), a sliding plate (14) is threadedly connected to the rod body of the threaded rod three (12), a guide rod (13) is fixedly connected to the upper surface of the processing table (3), the end of the sliding plate (14) away from the threaded rod three (12) is slidably connected to the guide rod (13), and the mounting block (17) is fixedly connected to the middle end of the sliding plate (14).

6. The automated polishing device for hotel metal furniture according to claim 4, characterized in that: A cylinder is fixedly installed on the inner wall of the collecting hopper (4), and the bottom surface of the limiting plate (35) is fixedly connected to the output end of the cylinder.

7. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: The mounting block (17) has a groove (25) at one end near the lifting plate (18). A connecting rod (27) is fixedly connected between the top and bottom walls of the groove (25). A connecting block (26) is movably inserted into the rod of the connecting rod (27). The end of the connecting block (26) away from the connecting rod (27) is fixedly connected to the lifting plate (18). A second spring (28) is fixedly connected between the connecting block (26) and the bottom wall of the groove (25). The second spring (28) is sleeved on the rod of the connecting rod (27).

8. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: A first spring (22) is fixedly connected between the lifting plate (18) and the slider three (23). The first spring (22) is sleeved on the rod body of the fixed rod (21). The fixed rod (21) is provided in two sets, and the two sets of fixed rods (21) are symmetrically arranged about the arc-shaped abutment one (19).

9. The automated polishing device for hotel metal furniture according to claim 1, characterized in that: The upper end of the processing table (3) is provided with a limiting top rod (15) and a pull plate (31). The processing table (3) is provided with two sets of electric push rods inside. The output ends of the two sets of electric push rods are fixedly connected to the limiting top rod (15) and the pull plate (31) respectively.

10. An automated polishing device for hotel metal furniture according to claim 9, characterized in that: The lifting plate (18) is fixedly connected to the side of the extension block (20), the processing table (3) is fixedly connected to the upper surface of the retraction rod (33), the retraction rod (33) is movably inserted with a pressing plate (29), the pressing plate (29) is fixedly connected to a pressing block (30) at the end away from the retraction rod (33), the retraction rod (33) is fitted with a third spring (34), one end of the third spring (34) is fixedly connected to the end of the retraction rod (33), the other end of the third spring (34) abuts against the side of the pressing plate (29), the pressing plate (29) is provided with a movable groove (32) at the upper end, and the pull plate (31) moves in the groove of the movable groove (32).

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