Plate surface polishing equipment for furniture production and control system thereof

Abstract

The invention discloses plate surface polishing equipment for furniture production and a control system thereof, and relates to the field of furniture plate polishing, the plate surface polishing equipment comprises an equipment rack and a treatment chamber, the equipment rack is fixedly mounted at the bottom of the treatment chamber, and a clamping mechanism, a spraying mechanism and a polishing mechanism are sequentially mounted in the treatment chamber from top to bottom in a vertical state; the polishing mechanism comprises a supporting plate, and the supporting plate is made of a metal rigid material and fixedly installed on the top area of the processing chamber. According to the polishing mechanism, movement of the first movable plate and the second movable plate is accurately controlled through the first electric cylinder, so that the felt wheel can be tightly attached to all areas of the surface of the plate, uniform and comprehensive polishing is achieved, the problem of glossiness difference caused by uneven polishing is effectively avoided, and meanwhile, the polishing efficiency is improved. And the spraying mechanism can evenly spray the polishing agent on the surface of the plate, it is guaranteed that the polishing conditions of all areas are consistent in the polishing process, and the glossiness uniformity and the overall polishing quality of the surface of the plate are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture plate polishing, in particular to a plate surface polishing device for furniture production and a control system thereof. Background Art

[0002] Plate polishing equipment is a professional equipment used to process the surface of various types of plates in the furniture manufacturing process to improve the smoothness, flatness and glossiness of the plate surface. Furniture plates are mainly long strips of block plates, usually with 2440mm×1220mm as the standard base material. The thickness of load-bearing parts (such as table legs and bed frame beams) is mostly 18-30mm and the width is 60-120mm.

[0003] For example, the "A furniture board surface polishing device" with publication number CN117140322A includes a polishing table, two pushing assemblies, a support plate, a reciprocating assembly, and two polishing mechanisms. The two pushing assemblies are respectively arranged on the upper surface of the polishing table; supports are fixed on both sides of the polishing table, and the two ends of the support plate are slidably connected to the corresponding supports; the reciprocating assembly is connected to the support plate; the sliding plate is connected to the reciprocating assembly, and the two polishing mechanisms are connected through a first transmission assembly. The polishing mechanism includes a support plate, multiple polishing assemblies and a second transmission assembly. The support plate is fixed to the surface of the sliding plate through a round plate; multiple polishing assemblies are respectively rotatably arranged on the lower surface of the support plate; and the multiple polishing assemblies are connected through the second transmission assembly.

[0004] However, in the existing technology, during the plate polishing process, the polishing head or tool is affected by factors such as insufficient mechanical transmission accuracy and lag in servo system response, resulting in unstable movement speed. This can easily lead to uneven glossiness due to unstable movement speed of the polishing head or polishing tool, uneven application and consumption of polishing agent, and traditional polishing equipment can only process one side of the plate at a time during processing, and needs to stop and turn over when processing the other side, which is more cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a board surface polishing device for furniture production to solve the problems raised in the above background technology due to unstable movement speed of the polishing head or polishing tool and uneven application and consumption of polishing agent.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a board surface polishing device for furniture production, comprising an equipment frame and a processing chamber, the equipment frame is fixedly mounted on the bottom of the processing chamber, the interior of the processing chamber is in a vertical state and is sequentially installed with a clamping mechanism, a spray mechanism and a polishing mechanism from top to bottom, the polishing mechanism comprises a support plate, the support plate is made of a metal rigid material, four corners of the support plate are fixedly connected to the top of the inner wall of the processing chamber, the support plate is divided into an upper and a lower processing surface, one of the processing surfaces is slidably connected to a first movable plate, and the other processing surface is slidably connected to a second movable plate, the second movable plate is horizontally arranged with the first movable plate and perpendicular to each other and surrounds the first movable plate to form a feeding port, the inner sides of the first movable plate and the inner sides of the second movable plate are both provided with notches, and the inner sides of the notches are rotatably installed with felt wheels, the first movable plate and the second movable plate drive the felt wheels to move in the horizontal direction, when in use, the board is placed in the feeding port in a vertical state, the spray mechanism sprays polishing agent onto the surface of the board, and at the same time the felt wheel rotates upward to generate friction with the board to complete polishing;

[0007] The spray mechanism includes a storage box and a spray pipe. One side of the spray pipe is connected to a hose, which is slidably connected to the inside of the storage box. The spray pipe and the connecting pipe form a rectangular frame structure, and the spray pipe is located above the support plate.

[0008] Preferably, a servo motor for driving the felt wheel 33 is fixedly mounted on the plate bodies of the first movable plate and the second movable plate, a gear rod is fixedly mounted on the lower surface of the first movable plate and the upper surface of the second movable plate, and the gear rods on the lower surfaces of the two first movable plates and the gear rods on the upper surfaces of the two second movable plates are arranged relative to each other.

[0009] Preferably, a connecting gear is meshed and connected between the two oppositely arranged gear rods, and the connecting gear is rotatably mounted on the support plate. Accommodation grooves are provided inside the first movable plate and inside the second movable plate.

[0010] Preferably, the ends of the first movable plate and the ends of the second movable plate are fixedly installed with connecting blocks, one side of the connecting block is fixedly connected to the first electric cylinder, the other end of the first electric cylinder is fixedly installed on the inner wall of the processing chamber, and the upper and lower processing surfaces of the support plate are fixedly installed with guide ridges, which are slidably connected to the first movable plate and the second movable plate respectively.

[0011] Preferably, a second electric cylinder is fixedly installed on the top of the processing chamber, the piston rod of the second electric cylinder is fixedly connected to the connecting pipe, and the second electric cylinder is arranged along the diagonal of the rectangular frame structure formed by the spray pipe and the connecting pipe. An annular groove is opened inside the connecting pipe, and a limiting ring is fixedly installed on the end of the spray pipe, and the limiting ring is slidably connected to the inside of the annular groove.

[0012] Preferably, one end of the hose is connected to a delivery pump, which is located inside the storage box, and the other end of the hose is connected to the delivery pump. A support block is fixedly installed on the lower surface of the delivery pump, and the support block overlaps the bottom of the storage box.

[0013] Preferably, the clamping mechanism includes a positioning block, two positioning blocks are arranged opposite to each other and are fixedly installed on the top of the processing chamber, the ends of the positioning blocks are slidably connected to a movable table, a third electric cylinder is fixedly connected between the movable table and the positioning blocks, and a roller rod is rotatably installed at the end of the movable table, and the roller rod is above the feed port.

[0014] Preferably, an inclined plate is fixedly installed on the inner wall of the processing chamber, a belt conveyor assembly is installed at the junction of the bottom of the processing chamber and the equipment frame, a bellows is fixedly installed on one side of the outer wall of the processing chamber, a belt transmission assembly is fixedly installed on the end of the bellows, and the bellows is located above the belt conveyor assembly.

[0015] A control system for polishing the surface of panels used in furniture production. The polishing equipment control system adopts a hierarchical distributed architecture, including a management layer, a control layer, and an equipment layer.

[0016] The management layer includes a human-computer interaction module and a data management module. The human-computer interaction module is used by operators to set polishing parameters, monitor equipment operating status, view historical data and alarm information, and perform equipment start, stop, and pause operations. The data management module is used to store and manage equipment operating data, process parameters, and fault information.

[0017] The control layer includes a main controller module, a motion control module, and a polishing agent control module. The main controller module is used to receive instructions from the management layer, process sensor data, control each actuator according to the preset control method and logic, and coordinate the work between various functional modules. The motion control module is used to control the movement of the polishing mechanism and the clamping mechanism, and respectively control the extension and retraction of the first electric cylinder, the second electric cylinder, and the third electric cylinder and the rotation of the felt wheel. The position and pressure of the felt wheel are adjusted according to the size and shape of the plate. The polishing agent control module is used to control the spray volume and spray position of the polishing agent. At the same time, it monitors the liquid level of the polishing agent in the storage tank. When the liquid level is too low, it will promptly alarm and stop the equipment operation.

[0018] The equipment layer includes a sensor module and an actuator module. The sensor module includes a displacement sensor, a speed sensor, a flow sensor and a liquid level sensor, which are used to monitor the operating status and parameters of various parts of the equipment in real time, convert physical quantities into electrical signals, and transmit them to the control layer for processing. The actuator module includes a first electric cylinder, a second electric cylinder, a third electric cylinder, a servo motor for driving the felt wheel 33, and a delivery pump. It performs corresponding actions according to the instructions of the control layer to realize the clamping of the plate, the movement of the polishing mechanism and the spraying of the polishing agent.

[0019] Preferably, the displacement sensor is installed on the first movable plate, the second movable plate, the spray pipe and the movable platform, the speed sensor is installed on the felt wheel, the flow sensor is installed at the spray port of the spray pipe, and the liquid level sensor is installed on the inner wall of the storage box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the polishing mechanism accurately controls the movement of the first movable plate and the second movable plate through the first electric cylinder, so that the felt wheel can closely fit various areas of the surface of the plate, achieving uniform and comprehensive polishing, and effectively avoiding the problem of gloss difference caused by uneven polishing. At the same time, the spraying mechanism can spray the polishing agent evenly on the surface of the plate, ensuring that the polishing conditions of various areas are consistent during the polishing process, further improving the gloss uniformity of the plate surface and the overall polishing quality. Moreover, the structure is arranged in a vertical state. During the actual polishing process, the debris generated will also fall directly and will not accumulate on the surface of the plate to affect the polishing effect.

[0022] 2. In the present invention, the clamping mechanism of the equipment can be flexibly adjusted according to the width of the plate, and can stably clamp plates of different specifications, thereby expanding the scope of application of the equipment and meeting the diverse plate polishing needs in furniture production. The adjustable design of the polishing mechanism and the spraying mechanism also enables the equipment to adapt to the polishing requirements of plates of different shapes and materials, thereby improving the versatility and flexibility of the equipment.

[0023] 3. In the present invention, the spray mechanism adopts a spray pipe and a connecting pipe. When in use, the spray structure can be adjusted according to the polishing position and the shape of the plate. When processing plates of different shapes and sizes, it can ensure that the spray effect can be adaptively adjusted according to the shape of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a board surface polishing device for furniture production according to the present invention;

[0025] Figure 2 This is a side view of a board surface polishing device for furniture production according to the present invention;

[0026] Figure 3 This is a top view of a board surface polishing device for furniture production according to the present invention;

[0027] Figure 4 This is a schematic diagram of the upper surface structure of a support plate of a plate surface polishing device for furniture production according to the present invention;

[0028] Figure 5 This is a schematic diagram of the lower surface structure of a support plate of a board surface polishing device for furniture production according to the present invention;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the polishing mechanism and the spraying mechanism of a plate surface polishing device for furniture production according to the present invention;

[0030] Figure 7 This is a schematic diagram of the planar structure of the connecting pipe, spray and hose of a board surface polishing device for furniture production according to the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the polishing mechanism and the clamping mechanism of a plate surface polishing device for furniture production according to the present invention;

[0032] Figure 9 This is a side view of the polishing mechanism and clamping mechanism of a plate surface polishing device for furniture production according to the present invention;

[0033] Figure 10 This is a system module block diagram of a board surface polishing device for furniture production according to the present invention;

[0034] Figure 11 This is a schematic diagram of the control flow of a board surface polishing device for furniture production according to the present invention;

[0035] Figure 12 The figure is a schematic diagram of the processing flow of a plate surface polishing device for fixture production according to the present invention.

[0036] In the figure: 1. Equipment frame; 2. Processing chamber; 3. Polishing mechanism; 4. Spraying mechanism; 5. Clamping mechanism; 6. Belt conveying assembly; 7. Bellows; 8. Belt transmission assembly; 9. Inclined plate; 31. Support plate; 32. First movable plate; 33. Felt wheel; 34. Second movable plate; 35. Gear rod; 36. Connecting gear; 37. Accommodating groove; 38. Guide ridge; 39. Feed port; 310. Connecting block; 311. First electric cylinder; 41. Storage box; 42. Second electric cylinder; 43. Connecting pipe; 44. Spraying pipe; 45. Hose; 46. Limiting ring; 47. Annular groove; 48. Support block; 49. Conveying pump; 51. Positioning block; 52. Movable table; 53. Roller rod; 54. Third electric cylinder. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 12 As shown: A surface polishing equipment for board materials used in furniture production includes an equipment frame 1 and a processing chamber 2. The equipment frame 1 is fixedly installed at the bottom of the processing chamber 2. The interior of the processing chamber 2 is in a vertical state and is equipped with a clamping mechanism 5, a spraying mechanism 4 and a polishing mechanism 3 in sequence from top to bottom. The polishing mechanism 3 includes a support plate 31. The support plate 31 is made of a metal rigid material and is fixedly installed in the top area of ​​the processing chamber 2. The four corners of the support plate 31 are fixedly connected to the inner wall of the processing chamber 2. The support plate 31 is divided into two upper and lower processing surfaces, one of which is slidably connected to a first movable plate 32, and the other processing surface is slidably connected to a second movable plate 34, and the second movable plate 34 is perpendicular to the first movable plate 32. The first movable plate 32 and the second movable plate 34 are surrounded to form a feeding port 39. Notches are provided on the inner sides of the first movable plate 32 and the second movable plate 34, and a felt wheel 33 is rotatably installed on the inner side of the notch. The first movable plate 32 and the second movable plate 34 drive the felt wheel 33 to move in the horizontal direction.

[0039] The spray mechanism 4 includes a storage box 41 and a spray pipe 44. One side of the spray pipe 44 is connected to a hose 45. The hose 45 is slidably connected to the inside of the storage box 41. The spray pipe 44 and the connecting pipe 43 form a rectangular frame structure, and the spray pipe 44 is located above the support plate 31.

[0040] The clamping mechanism 5 includes a positioning block 51, and the two positioning blocks 51 are arranged opposite to each other and are fixedly installed on the top of the processing chamber 2. The end of the positioning block 51 is slidably connected to a movable platform 52, and a third electric cylinder 54 is fixedly connected between the movable platform 52 and the positioning block 51. A roller rod 53 is rotatably installed at the end of the movable platform 52, and the roller rod 53 is above the feed port 39.

[0041] An inclined plate 9 is fixedly installed on the inner wall of the processing chamber 2, a belt conveyor assembly 6 is installed at the intersection of the bottom of the processing chamber 2 and the equipment frame 1, a bellows 7 is fixedly installed on one side of the outer wall of the processing chamber 2, and a belt transmission assembly 8 is fixedly installed at the end of the bellows 7. The bellows 7 is located above the belt conveyor assembly 6.

[0042] In this embodiment, before polishing the plate, the polishing mechanism 3 is started by the control system of the equipment according to the size and shape of the plate to be polished, and the first movable plate 32 and the second movable plate 34 are respectively slid on the processing surface of the support plate 31. After the first movable plate 32 and the second movable plate 34 move to the appropriate position, the servo motor installed on the plate body is started to drive the felt wheel 33 to rotate at high speed. At this time, the plate to be polished is vertically inserted between the two clamping mechanisms 5 and fixed, so that it is vertically transported downward to the feed port 39. The felt wheel 33 contacts the surface of the plate and applies a certain pressure. During the polishing process, according to the plate The control system of the equipment can adjust the contact state between the felt wheel 33 and the surface of the plate in real time to polish the surface of the plate comprehensively and evenly, ensuring that the felt wheel 33 fits tightly to the edge area and the consistency of the polishing quality. During the polishing process, the polishing agent in the storage box 41 is injected into the spray pipe 44 through the hose 45 and continuously sprayed onto the surface of the plate. After treatment, the plate will fall onto the inclined plate 9 and then slide onto the surface of the belt conveyor assembly 6. When it moves out from the end of the processing chamber 2, the belt drive assembly 8 will drive the fan in the bellows 7 to suck away the debris remaining on the surface of the plate.

[0043] Example 2: According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the polishing mechanism 3 includes a support plate 31, which is made of metal rigid material and is fixedly installed in the top area of ​​the processing chamber 2. The four corners of the support plate 31 are fixedly connected to the inner wall of the processing chamber 2. The support plate 31 is divided into an upper and lower processing surface, one of which is slidably connected to a first movable plate 32, and the other processing surface is slidably connected to a second movable plate 34, and the second movable plate 34 is perpendicular to the first movable plate 32. The first movable plate 32 and the second movable plate 34 are surrounded to form a feed port 39. Notches are provided on the inner sides of the first movable plate 32 and the second movable plate 34, and a felt wheel 33 is rotatably installed on the inner side of the notch. The first movable plate 32 and the second movable plate 34 drive the felt wheel 33 to move in the horizontal direction. A servo motor for driving the felt wheel 33 is fixedly installed on the plate bodies of the first movable plate 32 and the second movable plate 34. The lower surface of the first movable plate 32 The upper surface of the second movable plate 34 is fixedly mounted with a gear rod 35, and the gear rods 35 on the lower surface of the two first movable plates 32 and the gear rods 35 on the upper surface of the two second movable plates 34 are arranged opposite to each other, and a connecting gear 36 is meshed and connected between the two oppositely arranged gear rods 35, and the connecting gear 36 is rotatably mounted on the support plate 31, and the interior of the first movable plate 32 and the interior of the second movable plate 34 are provided with a receiving groove 37, and the gear rods 35 are inserted into the receiving groove 37 of the other plate body, and the end of the first movable plate 32 and the end of the second movable plate 34 are fixedly mounted with a connecting block 310, one side of the connecting block 310 is fixedly connected to the first electric cylinder 311, and the other end of the first electric cylinder 311 is fixedly mounted on the inner wall of the processing chamber 2, and the upper and lower processing surfaces of the support plate 31 are fixedly mounted with guide ridges 38, which are slidably connected to the first movable plate 32 and the second movable plate 34.

[0044] In this embodiment, before polishing the plate, the first electric cylinder 311 is started by the control system of the equipment according to the size and shape of the plate to be polished. The first electric cylinder 311 extends or contracts according to a preset program, driving the connecting block 310 to move, thereby causing the first movable plate 32 and the second movable plate 34 to slide on the processing surface of the support plate 31. During this process, the gear rod 35 and the connecting gear 36 cooperate with each other to ensure the synchronization and stability of the movement of the first movable plate 32 and the second movable plate 34. When the first movable plate 32 and the second movable plate 34 move to the appropriate position, the servo motor installed on the plate body is started to drive the felt wheel 33 to rotate at high speed. During the polishing process, the control system of the equipment can adjust the extension and contraction of the first electric cylinder 311 in real time according to the polishing condition of the plate surface. For example, when it is detected that the edge of the plate is not polished enough, the control system can control the first electric cylinder 311 to fine-tune the position of the first movable plate 32 and the second movable plate 34 to ensure the consistency of the polishing quality. The guide ridges 38 can determine the movement route of the first movable plate 32 and the second movable plate 34.

[0045] Example 3: According to Figure 2 、 Figure 3 、 Figure 6 and Figure 7 As shown, the spray mechanism 4 includes a storage box 41 and a spray pipe 44. One side of the spray pipe 44 is connected to a hose 45, which is slidably connected to the inside of the storage box 41. The spray pipe 44 and the connecting pipe 43 form a rectangular frame structure, and the spray pipe 44 is located above the support plate 31. A second electric cylinder 42 is fixedly installed on the top of the processing chamber 2. The piston rod of the second electric cylinder 42 is fixedly connected to the connecting pipe 43, and the second electric cylinder 42 is arranged along the diagonal of the rectangular frame structure formed by the spray pipe 44 and the connecting pipe 43. An annular groove 47 is provided inside the connecting pipe 43. A limit ring 46 is fixedly installed on the end of the spray pipe 44, and the limit ring 46 is slidably connected to the inside of the annular groove 47. The delivery pump 49 is located inside the storage box 41. The other end of the hose 45 is connected to the delivery pump 49. A support block 48 is fixedly installed on the lower surface of the delivery pump 49, and the support block 48 overlaps the bottom of the storage box 41.

[0046] In this embodiment, before the equipment is operated, an appropriate amount of polishing agent is added to the storage box 41. After the equipment is started, the second electric cylinder 42 starts to work according to the preset program. The piston rod of the second electric cylinder 42 extends or retracts, driving the connecting pipe 43 to move along the diagonal direction of the rectangular frame structure. Since the limit ring 46 slides in the annular groove 47, the spray pipe 44 moves accordingly to adapt to the shape of the plate. In this process, the delivery pump 49 in the storage box 41 is supported by the support block 48 and is stably placed at the bottom of the storage box 41 to ensure that the polishing agent is continuously and evenly supplied to the spray pipe 44 through the hose 45. A nozzle is installed on the inner side of the spray pipe 44 for spraying the polisher. The polishing agent will completely cover the surface of the entire plate, providing sufficient polishing medium for the polishing process.

[0047] Example 4: According to Figure 10 and Figure 11 As shown, a control system for a board surface polishing device used in furniture production, the polishing device control system adopts a hierarchical distributed architecture, including a management layer, a control layer and an equipment layer.

[0048] The management layer includes a human-computer interaction module and a data management module. The human-computer interaction module is used by operators to set polishing parameters, monitor equipment operating status, view historical data and alarm information, and execute equipment start, stop, and pause operations through this interface. The data management module is used to store and manage equipment operating data, process parameters, and fault information.

[0049] The control layer includes a main controller module, a motion control module and a polishing agent control module. The main controller module is used to receive instructions from the management layer, process sensor data, control each actuator according to the preset control method and logic, and coordinate the work between each functional module. The motion control module is used to control the movement of the polishing mechanism 3, the spraying mechanism 4 and the clamping mechanism 5, and respectively control the extension and retraction movements of the first electric cylinder 311, the second electric cylinder 42 and the third electric cylinder 54 and the rotation movement of the felt wheel 33, and adjust the position and pressure of the felt wheel 33 according to the size and shape of the plate. The polishing agent control module is used to control the spray amount and spray position of the polishing agent, and at the same time, monitor the liquid level of the polishing agent in the storage box 41. When the liquid level is too low, it will alarm in time and stop the equipment operation.

[0050] The equipment layer includes a sensor module and an actuator module. The sensor module includes a displacement sensor, a speed sensor, a flow sensor, and a liquid level sensor, which are used to monitor the operating status and parameters of various parts of the equipment in real time, convert physical quantities into electrical signals, and transmit them to the control layer for processing. The actuator module includes a first electric cylinder 311, a second electric cylinder 42, a third electric cylinder 54, a servo motor for driving the felt wheel 33, and a delivery pump 49. It performs corresponding actions according to the instructions of the control layer to achieve clamping of the plate, movement of the polishing mechanism 3, and spraying of the polishing agent. The displacement sensor is installed on the first movable plate 32, the second movable plate 34, the spray pipe 44 and the movable platform 52, the speed sensor is installed on the felt wheel 33, the flow sensor is installed at the spray port of the spray pipe 44, and the liquid level sensor is installed on the inner wall of the storage box 41.

[0051] The human-machine interaction module provides a user-friendly interface for operators to interact with the system. This interface allows operators to set polishing parameters such as polishing time, polishing pressure, and felt wheel speed; monitor equipment operating status, such as the position of each mechanism, motor speed, and polishing agent level; view historical data and alarm information; and execute operations such as starting, stopping, and pausing the equipment. The module uses an industrial touch screen or computer as the hardware platform, and develops the human-machine interface using configuration software such as WinCC and Force Control, or programming languages ​​such as Python + Tkinter and Qt. Data is exchanged with the control layer's PLC via communication interfaces such as Ethernet and serial ports. The data management module is responsible for storing and managing equipment operating data, process parameters, and fault information. Historical data can be queried, compiled, and analyzed, providing a basis for equipment maintenance, optimization, and decision-making. Data is stored in relational databases such as MySQL and SQL Server, or non-relational databases such as MongoDB. Data addition, deletion, modification, and query operations are performed through a database management system (DBMS). Data analysis tools such as Python's Pandas and Matplotlib are used for data processing and visualization.

[0052] The main controller module serves as the core of the control system. It receives instructions from the management level, processes sensor data, controls each actuator according to preset control algorithms and logics, coordinates the work between functional modules, and ensures the stable operation of the equipment. A programmable logic controller (PLC) is selected as the main controller, such as Siemens S7-1200 and Mitsubishi FX series. PLC has the advantages of high reliability, strong anti-interference ability, and convenient programming. The control program is written using PLC programming languages ​​such as ladder diagrams and instruction tables to achieve logical control and motion control of the equipment. The motion control module includes a position control submodule, a speed control submodule, a polishing agent control module, and a liquid level monitoring and alarm submodule. It accurately controls the position of the polishing mechanism 3 and the clamping mechanism 5, including the telescopic position of the first electric cylinder 311 and the second electric cylinder 42 and the spacing adjustment of the roller rod 53. The position of the felt wheel 33 and the roller rod 53 is adjusted according to the size and shape of the plate to ensure the polishing and clamping effect.

[0053] Through the pulse output module or analog output module of the PLC, a position control signal is sent to the electric cylinder driver, and the position of the electric cylinder and the roller rod 53 is fed back using a displacement sensor to form a closed-loop control system, thereby improving the position control accuracy, controlling the rotation speed of the felt wheel 33 and the conveying speed of the plate, adjusting the speed parameters according to the requirements of the polishing process, and ensuring the consistency of the polishing quality. Through the analog output module of the PLC, a speed control signal is sent to the servo driver, and the servo driver drives the servo motor to achieve speed adjustment according to the signal, and uses a speed sensor to feed back the motor speed to achieve speed closed-loop control, accurately controlling the spray flow of the polishing agent, and adjusting the speed according to the surface of the plate. The accumulation and polishing requirements require adjustment of the flow rate to ensure that the polishing agent is evenly covered on the surface of the plate. A flow sensor is used to monitor the flow rate of the polishing agent in real time and transmit the data to the PLC. The PLC controls the speed of the polishing agent delivery pump 49 through the frequency converter according to the preset flow value to achieve precise control of the flow rate. The liquid level of the polishing agent in the storage tank 41 is monitored in real time. When the liquid level is lower than the set value, an alarm signal is issued in time and the equipment can be automatically stopped to prevent the polishing quality from being affected by insufficient polishing agent. A liquid level sensor is used to detect the polishing agent level and transmit the liquid level signal to the PLC. The PLC determines whether an alarm is needed based on the liquid level threshold and sends an alarm signal through the sound and light alarm.

[0054] The displacement sensor is used to measure the displacement of the electric cylinder and the roller 53, and provide position feedback information for the motion control module. A laser displacement sensor or a magnetostrictive displacement sensor is selected to convert the displacement signal into an electrical signal and transmit it to the analog input module of the PLC. The speed sensor is used to measure the speed of the felt wheel 33 and the motor, and provide speed feedback information for the speed control submodule. A photoelectric speed sensor or a magnetoelectric speed sensor is used to convert the speed signal into a pulse signal and transmit it to the high-speed counter input module of the PLC. The flow sensor is used to monitor the flow of the polishing agent in real time and provide flow feedback information for the polishing agent flow control submodule. An electromagnetic flow sensor or a turbine flow sensor is selected to convert the flow signal into an electrical signal and transmit it to the analog input module of the PLC. The liquid level sensor is used to monitor the liquid level of the polishing agent in the storage box 41, and provides liquid level monitoring and The alarm submodule provides liquid level information and uses a capacitive liquid level sensor or an ultrasonic liquid level sensor to convert the liquid level signal into an electrical signal, which is transmitted to the analog input module of the PLC. The actuator module is used to control the telescopic action of the first electric cylinder 311 and the second electric cylinder 42 to achieve position adjustment of the polishing mechanism 3 and the clamping mechanism 5. The electric cylinder is equipped with a dedicated electric cylinder driver to receive the control signal of the PLC and drive the electric cylinder to move according to the set position and speed. The servo motor used to drive the felt wheel 33 and the plate conveying device is controlled to achieve precise speed control and position control. The servo motor is equipped with a servo driver to adjust the speed and position of the servo motor according to the control signal of the PLC. In addition, the delivery pump 49 is synchronously controlled to achieve the delivery and spraying of the polishing agent. The flow and pressure of the delivery pump 49 are adjusted according to the instructions of the polishing agent control module.

[0055] How to use and working principle of this device:

[0056] Plate loading: According to the width of the plate to be polished, the position of the movable table 52 in the clamping mechanism 5 is adjusted on the positioning block 51 so that the spacing between the rollers 53 is adapted to the width of the plate, and the plate is placed vertically between the two rollers 53. Through the rotation of the rollers 53, the plate is smoothly transported to the feed port 39 position to complete the plate loading operation.

[0057] Polishing agent spraying: When the spray mechanism 4 is activated, the second electric cylinder 42 drives the connecting pipe 43 and the spray pipe 44 to move according to a preset program. The polishing agent flows from the storage tank 41 through the hose 45 into the spray pipe 44 and is evenly sprayed on the surface of the board. During the spraying process, the control system of the equipment can adjust the movement parameters of the second electric cylinder 42 in real time according to the size and shape of the board to ensure that the polishing agent is evenly covered on all areas of the board.

[0058] Plate Polishing: The polishing mechanism 3 is activated, and the first electric cylinder 311 adjusts the position of the first movable plate 32 and the second movable plate 34, ensuring that the felt wheel 33 contacts the plate surface and maintains appropriate pressure. Simultaneously, the servo motor drives the felt wheel 33 to rotate at high speed, polishing the plate surface. During the polishing process, the first electric cylinder 311 continuously adjusts the position of the felt wheel 33 to ensure a comprehensive and even polish of the plate surface. The device's control system automatically adjusts the speed and pressure of the felt wheel 33, as well as the movement speed of the first and second movable plates 32 and 34, based on factors such as the plate material and hardness.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A surface polishing device for plate materials used in furniture production, comprising a device frame (1) and a processing chamber (2), wherein the device frame (1) is fixedly mounted on the bottom of the processing chamber (2), and characterized in that: The interior of the processing chamber (2) is in a vertical state, and a clamping mechanism (5), a spraying mechanism (4) and a polishing mechanism (3) are installed in sequence from top to bottom. The polishing mechanism (3) includes a support plate (31), and the support plate (31) is made of a metal rigid material. The four corners of the support plate (31) are fixedly connected to the top of the inner wall of the processing chamber (2). The support plate (31) is divided into two upper and lower processing surfaces, one of which is slidably connected to a first movable plate (32), and the other processing surface is slidably connected to a second movable plate (34), and the second movable plate (34) is connected to the first movable plate. The movable plates (32) are arranged horizontally and perpendicular to each other and surround a feed port (39). Notches are provided on the inner side of the first movable plate (32) and the inner side of the second movable plate (34), and a felt wheel (33) is rotatably installed on the inner side of the notch. The first movable plate (32) and the second movable plate (34) drive the felt wheel (33) to move in the horizontal direction. When in use, the plate is placed in the feed port (39) in a vertical state, and the spray mechanism (4) sprays a polishing agent on the surface of the plate. At the same time, the felt wheel (33) rotates upward to generate friction with the plate to complete the polishing. The spray mechanism (4) includes a storage box (41) and a spray pipe (44). One side of the spray pipe (44) is connected to a hose (45). The hose (45) is slidably connected to the inside of the storage box (41). The spray pipe (44) and the connecting pipe (43) form a rectangular frame structure, and the spray pipe (44) is located above the support plate (31).

2. The surface polishing device for plate materials used in furniture production according to claim 1, characterized in that: A servo motor for driving the felt wheel (33) is fixedly mounted on the plate bodies of the first movable plate (32) and the second movable plate (34), and a gear rod (35) is fixedly mounted on the lower surface of the first movable plate (32) and the upper surface of the second movable plate (34), and the gear rods (35) on the lower surfaces of the two first movable plates (32) and the gear rods (35) on the upper surfaces of the two second movable plates (34) are arranged relative to each other.

3. The surface polishing device for board materials used in furniture production according to claim 2, characterized in that: A connecting gear (36) is meshed and connected between two oppositely arranged gear rods (35), and the connecting gear (36) is rotatably mounted on the support plate (31). The interior of the first movable plate (32) and the interior of the second movable plate (34) are both provided with an accommodating groove (37).

4. The surface polishing device for board materials used in furniture production according to claim 3, characterized in that: The end of the first movable plate (32) and the end of the second movable plate (34) are both fixedly mounted with a connecting block (310), one side of the connecting block (310) is fixedly connected to the first electric cylinder (311), and the other end of the first electric cylinder (311) is fixedly mounted on the inner wall of the processing chamber (2), and the upper and lower processing surfaces of the support plate (31) are both fixedly mounted with guide ridges (38), and the guide ridges (38) are respectively slidably connected to the first movable plate (32) and the second movable plate (34).

5. The surface polishing device for board materials used in furniture production according to claim 4, characterized in that: A second electric cylinder (42) is fixedly installed on the top of the processing chamber (2), the piston rod of the second electric cylinder (42) is fixedly connected to the connecting pipe (43), and the second electric cylinder (42) is arranged along the diagonal of the rectangular frame structure formed by the spray pipe (44) and the connecting pipe (43), an annular groove (47) is opened inside the connecting pipe (43), and a limiting ring (46) is fixedly installed on the end of the spray pipe (44), and the limiting ring (46) is slidably connected inside the annular groove (47).

6. The surface polishing device for board materials used in furniture production according to claim 5, characterized in that: One end of the hose (45) is connected to a delivery pump (49), which is located inside the storage box (41). The other end of the hose (45) is connected to the delivery pump (49), and a support block (48) is fixedly installed on the lower surface of the delivery pump (49), and the support block (48) overlaps the bottom of the storage box (41).

7. The surface polishing device for board materials used in furniture production according to claim 6, characterized in that: The clamping mechanism (5) includes positioning blocks (51), two positioning blocks (51) are arranged opposite to each other and are fixedly installed on the top of the processing chamber (2), the ends of the positioning blocks (51) are slidably connected to a movable platform (52), a third electric cylinder (54) is fixedly connected between the movable platform (52) and the positioning blocks (51), and a roller rod (53) is rotatably installed at the end of the movable platform (52), and the roller rod (53) is located above the feed port (39).

8. The board surface polishing equipment for furniture production according to claim 7, characterized in that: An inclined plate (9) is fixedly mounted on the inner wall of the processing chamber (2); a belt conveying assembly (6) is mounted at the junction of the bottom of the processing chamber (2) and the equipment frame (1); a bellows (7) is fixedly mounted on one side of the outer wall of the processing chamber (2); a belt transmission assembly (8) is fixedly mounted at the end of the bellows (7); and the bellows (7) is located above the belt conveying assembly (6).

9. A control system for a board surface polishing device for furniture production, using the board surface polishing device for furniture production according to any one of claims 1 to 8, characterized in that: The polishing equipment control system adopts a hierarchical distributed architecture, including management layer, control layer and equipment layer; The management layer includes a human-computer interaction module and a data management module. The human-computer interaction module is used by operators to set polishing parameters, monitor equipment operating status, view historical data and alarm information, and perform equipment start, stop, and pause operations. The data management module is used to store and manage equipment operating data, process parameters, and fault information. The control layer includes a main controller module, a motion control module and a polishing agent control module. The main controller module is used to receive instructions from the management layer, process sensor data, control each actuator according to a preset control method and logic, and coordinate the work between each functional module. The motion control module is used to control the movement of the polishing mechanism (3) and the clamping mechanism (5), respectively control the telescopic movement of the first electric cylinder (311), the second electric cylinder (42) and the third electric cylinder (54) and the rotation movement of the felt wheel (33), and adjust the position and pressure of the felt wheel (33) according to the size and shape of the plate. The polishing agent control module is used to control the spraying amount and spraying position of the polishing agent, and at the same time, monitor the liquid level of the polishing agent in the storage box (41). When the liquid level is too low, an alarm is issued in time and the equipment operation is stopped. The equipment layer includes a sensor module and an actuator module. The sensor module includes a displacement sensor, a speed sensor, a flow sensor and a liquid level sensor, which are used to monitor the operating status and parameters of various parts of the equipment in real time, convert physical quantities into electrical signals, and transmit them to the control layer for processing. The actuator module includes a first electric cylinder (311), a second electric cylinder (42), a third electric cylinder (54), a servo motor for driving the felt wheel (33) and a delivery pump (49), and performs corresponding actions according to the instructions of the control layer to achieve the clamping of the plate, the movement of the polishing mechanism (3) and the spraying of the polishing agent.

10. The control system of the board surface polishing equipment for furniture production according to claim 9, characterized in that: The displacement sensor is installed on the first movable plate (32), the second movable plate (34), the spray pipe (44) and the movable platform (52); the speed sensor is installed on the felt wheel (33); the flow sensor is installed at the spray port of the spray pipe (44); and the liquid level sensor is installed on the inner wall of the storage box (41).

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