Automatic straight edge sealing machine

Abstract

The present application relates to the technical field of edge banding machine, specifically to an automatic straight edge banding machine, comprising a guide rail frame, further comprising an adjusting assembly, a plate limiting assembly, a surrounding edge banding assembly, a feeding conveyor belt and a discharging conveyor belt, the adjusting assembly and the plate limiting assembly are both arranged on the inner side of the guide rail frame, the surrounding edge banding assembly is installed on the guide rail frame, the guide rail frame drives the surrounding edge banding assembly to make a mouth-shaped movement, the feeding conveyor belt and the discharging conveyor belt are arranged on both sides of the guide rail frame, and the end of the feeding conveyor belt and the end of the discharging conveyor belt both extend to the inner side of the guide rail frame, the plate limiting assembly is arranged at the center position of the feeding conveyor belt and the discharging conveyor belt, and the adjusting assembly is installed between the feeding conveyor belt and the plate limiting assembly. The present application can sequentially perform edge banding around the plate, and can complete the edge banding operation at one time, so as to ensure the edge banding quality.

Description

Technical Field

[0001] This invention relates to the field of edge banding machine technology, specifically to an automatic straight-line edge banding machine. Background Technology

[0002] Automatic straight-line edge banding machines are widely used in furniture manufacturing, especially in large-scale and customized production. Their high efficiency, precision, and stable performance can bring significant improvements in production efficiency and cost savings to manufacturing enterprises. Compared with traditional manual edge banding machines, fully automatic edge banding machines have multiple functions such as automatic glue application, edge cutting, pressing, pre-milling, rough finishing, and fine finishing.

[0003] Currently, automatic straight-line edge banding machines, when processing rectangular panels, use clamps mounted on slide rails to fix the panels. The panels then move in a single direction along the slide rails. During this linear movement, only the two sidewalls parallel to the direction of travel can be edge-banded; it's impossible to edge-band all four sides at once. Therefore, for conventional rectangular panels, at least two edge-banding operations are required. This means that after completing the first edge-banding operation, the worker needs to pick up the panel, rotate it 90°, return it to the feeding port, and then reverse the flow to edge-band the un-edgered sides. For panel edge-banding, the second edge-banding requires first loosening the panel and rotating it 90°, making the operation cumbersome and affecting production efficiency. Furthermore, the second edge-banding requires extremely high precision from the edge banding machine. When the edge banding strips are not precisely aligned, problems such as excessive gaps or overlapping strips can occur, resulting in poor edge-banding quality. When the edge banding strips overlap, not only is strip wasted, but the overlapping portion also needs to be cut off, adding to the cumbersome process. Meanwhile, the automatic straight edge banding machine has high personnel requirements, requiring one operator and two loading and unloading workers to operate it.

[0004] To address this issue, an automatic straight edge banding machine is proposed to solve the problem that automatic straight edge banding machines cannot band all four sides of the board in one go, resulting in inconsistent edge banding quality. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic straight edge banding machine that solves the problem of poor edge banding quality caused by the inability of automatic straight edge banding machines to band all four sides of the board in one go. By banding the edge banding components around the board in sequence, the edge banding operation can be completed in one go, which can ensure the edge banding quality and at the same time improve production efficiency and save production costs.

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

[0007] An automatic straight edge banding machine includes a guide rail frame, an adjustment component, a sheet material limiting component, a surrounding edge banding component, an feeding conveyor belt, and a discharging conveyor belt. The adjustment component and the sheet material limiting component are both located inside the guide rail frame. The surrounding edge banding component is mounted on the guide rail frame, and the guide rail frame drives the surrounding edge banding component to perform a U-shaped movement. The feeding and discharging conveyor belts are located on both sides of the guide rail frame, with the ends of both belts extending into the inner side of the frame. The sheet material limiting component is located at the center of the feeding and discharging conveyor belts. The adjustment component is installed between the feeding conveyor belt and the sheet material limiting component, guiding the sheet material from the feeding conveyor belt towards the sheet material limiting component. The sheet material limiting component controls the sheet material to slide from a certain height at a suitable angle onto the discharging conveyor belt.

[0008] Thanks to the above design, it has the following advantages: First, the guide rail frame is designed for quick disassembly, allowing workers to install it according to the specifications of the sheet metal to be processed; Second, the edge banding assembly is controlled by a PLC to achieve precise movement of the edge banding assembly within the guide rail frame.

[0009] Preferably, the edge-sealing assembly includes an applicator, a pressure roller, a cutter, a milling cutter, a multi-functional cabinet, a robotic arm, a motor, a slider, a glue pot, and an electric push rod. The slider is slidably mounted on the guide rail frame track. The robotic arm is mounted on the side wall of the slider. A motor is mounted on the side wall of the robotic arm. The electric push rod is mounted at the end of the robotic arm. The multi-functional cabinet is connected to the electric push rod. The milling cutter, the cutter, the pressure roller, and the applicator are sequentially mounted on the side wall of the multi-functional cabinet. The glue pot is mounted on the surface of the multi-functional cabinet and is positioned against the edge of the multi-functional cabinet surface.

[0010] The robotic arm and electric push rod work together to quickly position the multi-functional cabinet at the predetermined starting point of the board to be processed, and move it around the board in a U-shape starting from a point on the side wall of the board. During the movement, the board is edge-sealed in one go, so there is no need to perform the edge-sealing operation again.

[0011] Preferably, the plate limiting assembly includes a first push rod, an upper clamping plate, a rotating handle, an edge banding strip placement tray, a lower clamping working plate, a lower clamping base plate, a second push rod, a third push rod, a fourth push rod, a support cylinder, a support spring, and a gantry frame; the first push rod is mounted on the gantry frame, the upper clamping plate is mounted on the bottom of the first push rod, the rotating handle is mounted on the side wall of the upper clamping plate, the edge banding strip placement tray is mounted on the surface of the multi-functional cabinet, the lower clamping base plate is located directly below the upper clamping plate, the second, third, and fourth push rods and the support cylinder are all fixedly mounted on the lower clamping base plate, the lower clamping working plate is rotatably mounted between the tops of the second and fourth push rods, the support cylinder is provided with a support spring whose top abuts against the lower clamping working plate, and the second, third, and fourth push rods adjust the inclination of the lower clamping working plate by extending and retracting to different lengths.

[0012] Preferably, the heights of the feeding conveyor belt and the unloading conveyor belt are different, and the height of the unloading conveyor belt is higher than that of the feeding conveyor belt.

[0013] As the sheet material moves from the feeding conveyor belt to the surface of the lower clamping working plate, the second and fourth push rods are activated simultaneously to make the surface of the lower clamping working plate horizontal. The lower clamping working plate is higher than the feeding conveyor belt but lower than the unfeeding conveyor belt. Therefore, during the movement of the sheet material, the second or fourth push rod on the corresponding side is retracted. When the third push rod extends, the lower clamping working plate tilts to the side of the feeding conveyor belt so that the sheet material can move upward at an inclined angle. This prevents the sheet material from sliding too fast under its own gravity at an inclined downward angle and slipping off the surface of the lower clamping working plate.

[0014] Preferably, the adjustment assembly includes a positioning roller, a second electric push rod, a slide rail, and a positioning plate. The slide rail is installed on the ground, the positioning plate is installed on the slide rail, the second electric push rod is installed on the top side wall of the positioning plate, and the positioning roller is installed at the end of the second electric push rod. The second electric push rod and the positioning roller cooperate to adjust the position of plates of different widths.

[0015] Preferably, a connecting assembly is installed between the side wall of the lower clamping working plate and the side wall of the feeding conveyor belt. The connecting assembly includes a limiting rod, a sliding rod, a rotating rod, an end rod, and a fixing block. The fixing block is installed on the side wall of the feeding conveyor belt, the end rod is fixed to the side wall of the fixing block, the limiting rod is rotatably installed on the outer periphery of the end rod, the side wall of the limiting rod has a through groove, the sliding rod passes through the through groove, the rotating rod is rotatably installed between the sliding rod and the side wall of the lower clamping working plate, the feeding conveyor belt is electrically connected to a rotary switch, and the rotary switch is installed on the end rod. A toggle block is installed on the side wall of the limiting rod.

[0016] During the process of the feeding conveyor belt delivering the sheet metal to the lower clamping working plate, a pressure sensor is installed on the positioning roller in the adjustment assembly. When the pressure sensor receives the same pressure value, the lower clamping working plate raises the sheet metal to the height of the guide rail frame. When the sheet metal descends with the lower clamping working plate to below the feeding conveyor belt, the connecting assembly is located between the feeding conveyor belt and the lower clamping working plate. The relative height can be determined by the angle change between the feeding conveyor belt and the lower clamping working plate. When the extension line of the bottom surface of the sheet metal intersects with the end of the surface of the feeding conveyor belt as the lower clamping working plate moves downward, the limit rod at the corresponding angle drives the knob switch to rotate and start the feeding conveyor belt. This reduces the idling time of the feeding conveyor belt and saves a lot of energy.

[0017] Preferably, the pressure roller has a variable groove on its outer periphery to accommodate edge sealing operations of the sheet metal by edge sealing strips of different widths.

[0018] If a different sheet material with varying side widths is used during processing, workers must simultaneously replace both the edge banding and the pressure roller to accommodate the new width, impacting production efficiency. The aforementioned structural design addresses this by allowing the electric telescopic device to move to the required edge banding width when processing different sheet materials. This enables the groove on the pressure roller to be variable, accommodating materials with different side widths. If a different sheet material is used during processing, workers only need to replace the corresponding edge banding, reducing downtime and improving production efficiency.

[0019] It's worth noting that while electric telescopic devices offer advantages for achieving variable grooves on pressure rollers, they also allow for CNC operation. Workers simply input the side width of the sheet material into the CNC system to control the groove width, making it convenient, quick, and improving production efficiency. However, a disadvantage is that the pressure roller needs to apply pressure to the side of the sheet material to ensure the edge banding is tightly adhered. Prolonged pressure on one side can lead to uneven stress and deformation of the electric telescopic device. This can prevent it from accurately moving to the desired width of the edge banding, resulting in inaccurate adhesion and affecting product quality. Therefore, if an electric telescopic device is used to adjust the groove width of the pressure roller, the equipment needs to be regularly inspected for deformation. If deformation is found, the device must be replaced, increasing maintenance costs.

[0020] If an electric telescopic device is not used, sleeves can be installed at both ends of the pressure roller, with springs inside the sleeves. When it is necessary to change the edge sealing strip of different widths, the worker needs to manually open the sleeves, compressing the springs inside. At this time, the edge sealing strip is placed in the middle position between the two sleeves. After placement, the springs inside the sleeves extend, fixing the edge sealing strip in the middle position of the sleeves, thereby changing the groove width. If the sleeve method is used to change the groove, the worker needs to manually adjust the sleeves when changing the edge sealing strip of different widths, which will lead to a decrease in production efficiency and an increase in labor. However, due to its simple structure, it can effectively prevent deformation caused by uneven force on the pressure roller, thereby reducing equipment maintenance costs. In practical applications, users should base their decisions on actual working conditions and comprehensively consider its advantages and disadvantages to decide whether to use an electric telescopic device to adjust the groove width.

[0021] Preferably, the bottom surface of the upper clamp plate is fitted with rubber strips, and the rubber strips are distributed at equal intervals in an alternating pattern.

[0022] The rubber strip increases the friction between the sheet and the upper clamp plate, ensuring that the sheet will not shift due to pressure from only one side when the pressure roller presses the edge banding strip, and ensuring that the edge banding strip can be tightly bonded to the side of the sheet.

[0023] Preferably, the lower clamp working plate has air holes, and a screen is fixed to the inner circumference of the air holes, and the surface of the screen is flush with the surface of the lower clamp working plate.

[0024] When the sheet metal is being cut, the air holes on the lower clamping work plate blow air upwards, raising the sheet metal to a certain height. At the same time, the air blowing also cleans up the waste generated during cutting, preventing the sheet metal surface from being scratched by the waste. The screen can prevent waste chips from entering the air holes and clogging them, which would cause the air holes to fail.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. This invention, through the setting of a guide rail frame, a surrounding edge banding component, and a board limiting component, allows for automatic edge banding of boards. The board limiting component adjusts the height of the board, moving it to a plane level with the guide rail frame. Edge banding can then be performed sequentially around all four sides of the board, completing the required edge banding in one operation. Not only can all four sides of the board be edge banded at once, but the board limiting component also limits and fixes the board during the edge banding process, thus ensuring the quality of the edge banding. The one-time edge banding operation results in only a single gap between the edge banding strips, reducing the impact of gaps on the edge banding quality.

[0027] 2. The present invention, through the setting of the board limiting component, the feeding conveyor belt and the unloading conveyor belt, allows for flexible height adjustment of the board during the automatic edge sealing operation. This flexible height adjustment enables the board to move smoothly between the feeding conveyor belt, the board limiting component and the unloading conveyor belt, and prevents the board from losing control of its speed during movement and colliding with rigid components, which would cause scratches or dents on the edge sealing strip, thereby further ensuring the quality of edge sealing.

[0028] 3. Through the adjustment and connection components, this invention guides the sheet material to tilt upwards onto the unpowered surface of the lower clamping working plate when it is being transported between the feeding conveyor belt, the sheet material limiting component, and the unloading conveyor belt. This effectively prevents the sheet material from falling off the lower clamping working plate due to excessive speed, which could cause damage and economic losses. Furthermore, the unloading conveyor belt only starts when the extended line of the sheet material intersects the end of the conveyor belt surface. This not only reduces the idle time of the unloading conveyor belt and saves energy, but also ensures that the unloading conveyor belt is in the starting state when the sheet material falls, preventing relative friction between the sheet material and the surface of the unloading conveyor belt that could cause scratches on the edge banding strip, thus fully guaranteeing the edge banding quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a side sectional view of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the edge-sealing assembly of the present invention;

[0032] Figure 4 This is a side sectional view of the multifunctional cabinet of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0034] Figure 6 This is a side sectional view of the sheet metal limiting component of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the feeding conveyor belt of the present invention;

[0036] Figure 8 This is a schematic diagram of the connection component of the present invention.

[0037] In the diagram: 1. Guide rail frame; 2. Adjustment assembly; 3. Sheet material limiting assembly; 4. Edge banding assembly; 21. Positioning roller; 22. Electric push rod II; 23. Slide rail; 24. Positioning plate; 30. Lower clamp working plate; 301. Air hole; 302. Screen; 31. First push rod; 311. Upper clamp plate; 32. Second push rod; 33. Support spring; 34. Support cylinder; 35. Third push rod; 36. Fourth push rod; 37. Rotary... 38. Handle; 39. Edge banding strip placement tray; 40. Lower clamp base plate; 41. Glue applicator; 42. Pressure roller; 421. Variable groove; 43. Cutter; 44. Milling cutter; 45. Multifunctional cabinet; 46. Robotic arm; 47. Motor; 49. Slider; 50. Glue pot; 51. Electric push rod; 5. Feeding conveyor belt; 6. Discharging conveyor belt; 61. Limiting rod; 62. Sliding rod; 63. Rotating rod; 64. End rod; 65. Fixing block. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1 to 8 This invention provides an automatic straight-line edge banding machine, the technical solution of which is as follows:

[0040] An automatic straight edge banding machine includes a guide rail frame 1, an adjustment component 2, a sheet material limiting component 3, a surrounding edge banding component 4, an feeding conveyor belt 5, and a discharging conveyor belt 6. The adjustment component 2 and the sheet material limiting component 3 are both located inside the guide rail frame 1. The surrounding edge banding component 4 is mounted on the guide rail frame 1, and the guide rail frame 1 drives the surrounding edge banding component 4 to perform a U-shaped movement. The feeding conveyor belt 5 and the discharging conveyor belt 6 are located on both sides of the guide rail frame 1, with the ends of both extending to the inside of the guide rail frame 1. The sheet material limiting component 3 is located at the center of the feeding conveyor belt 5 and the discharging conveyor belt 6. The adjustment component 2 is installed between the feeding conveyor belt 5 and the sheet material limiting component 3, guiding the sheet material from the feeding conveyor belt 5 to the sheet material limiting component 6. The positioning component 3 moves, and the plate limiting component 3 controls the plate to slide from a certain height at a suitable angle onto the feeding conveyor belt 6. The guide rail frame 1 is designed for quick disassembly, and workers can assemble the guide rail frame 1 of appropriate size according to the specifications of the plates to be processed. The edge banding component 4 is controlled by PLC to achieve precise movement around the edge banding component 4 within the guide rail frame 1. There is a difference in height between the feeding conveyor belt 5 and the unloading conveyor belt 6, and the height of the unloading conveyor belt 6 is higher than that of the feeding conveyor belt 7. When moving around the edge banding component 4 along the guide rail frame 1, the edges of the plate can be sealed sequentially. Compared with multiple edge bandings of the plate, one-time edge banding has higher uniformity and does not require multiple cutting of the edge banding strip. The edge banding strip has only one connection point, resulting in higher edge banding quality of the plate.

[0041] As one embodiment of the present invention, refer to Figure 1 , Figure 3 and Figure 4The edge-sealing assembly 4 includes an applicator 41, a pressure roller 42, a cutter 43, a milling cutter 44, a multi-functional cabinet 45, a robotic arm 46, a motor 47, a slider 49, a glue pot 50, and an electric push rod 51. The slider 49 is slidably mounted on the guide rail frame 1. The robotic arm 46 is mounted on the side wall of the slider 49, and the motor 47 is mounted on the side wall of the robotic arm 46. The electric push rod 51 is mounted on the end of the robotic arm 46. The multi-functional cabinet 45 is connected to the electric push rod 51. The milling cutter 44, the cutter 43, the pressure roller 42, and the applicator 41 are sequentially mounted on the side wall of the multi-functional cabinet 45. The glue pot 50 is mounted on the surface of the multi-functional cabinet 45 and is in contact with the surface of the multi-functional cabinet 45. The edge is provided with a motor 47 that provides power input to the robotic arm 46, enabling the robotic arm 46 to rotate flexibly. The robotic arm 46 and the electric push rod 51 work together to position the multi-functional cabinet 45 at the predetermined starting point of the board to be processed, and move around the board in a U-shape starting from a point on the side wall of the board. During the movement, the board is edge-sealed in one go. The side wall of the multi-functional cabinet 45 is provided with a matrix of screw holes. The glue applicator 41 is fixedly installed on the side wall of the multi-functional cabinet 45. The glue applicator 41 is a glue applicator roller. The glue pot 50 is connected to the glue applicator 41 through a glue tube. The glue pot 50 introduces flowing hot melt glue into the glue applicator 41 through the glue tube so that the hot melt glue is evenly coated on the PVC edge banding strip.

[0042] As one embodiment of the present invention, refer to Figure 2 and Figure 6The sheet metal limiting assembly 3 includes a first push rod 31, an upper clamping plate 311, a rotating handle 37, an edge banding strip placement tray 38, a lower clamping working plate 30, a lower clamping base plate 39, a second push rod 32, a third push rod 35, a fourth push rod 36, a support cylinder 34, a support spring 33, and a gantry frame. The first push rod 31 is mounted on the gantry frame, the upper clamping plate is mounted on the bottom of the first push rod 31, the rotating handle 37 is mounted on the side wall of the upper clamping plate 311, and the edge banding strip placement tray 38 is mounted on the multi-plate support cylinder 34. On the surface of the functional cabinet 45, when the edge banding needs to be replaced, the worker only needs to place the edge banding directly on the edge banding placement tray 38 without disassembling any equipment. The lower clamp base plate 39 is located directly below the upper clamp plate 311. The second push rod 32, the third push rod 35, the fourth push rod 36, and the support cylinder 34 are all fixedly installed on the lower clamp base plate 39. The lower clamp working plate 30 is rotatably installed between the tops of the second push rod 32 and the fourth push rod 36. The support cylinder 34 is provided with a top and a lower clamp. The support spring 33 abutting the working plate 30, and the second push rod 32, third push rod 35, and fourth push rod 36 adjust the inclination of the lower clamping working plate 30 by extending and retracting to different lengths. When the sheet moves from the loading conveyor belt 5 to the surface of the lower clamping working plate 30, the second push rod 32 and the fourth push rod 36 are activated simultaneously to make the surface of the lower clamping working plate 30 horizontal, with the lower clamping working plate 30 higher than the loading conveyor belt 5 and lower than the unloading conveyor belt 6. During the movement of the sheet, the second push rod 32 or the fourth push rod 36 on the corresponding side is retracted. When the third push rod 35 is extended, the lower clamping working plate 30 tilts to the side of the loading conveyor belt 5 or the unloading conveyor belt 6 so that the sheet moves tilted upwards and downwards onto the lower clamping working plate 30 or the unloading conveyor belt 6. Since there is a height difference between the loading conveyor belt 5 and the unloading conveyor belt 6, the sheet can be prevented from slipping off the surface of the lower clamping working plate 30 at a downward tilted angle under its own gravity, thus avoiding damage to the sheet and minimizing losses during the processing of the sheet.

[0043] As one embodiment of the present invention, refer to Figure 1 and Figure 5The adjustment assembly 2 includes a positioning roller 21, an electric push rod 22, a slide rail 23, and a positioning plate 24. The slide rail 23 is installed on the ground, and the positioning plate 24 is installed on the slide rail 23. The electric push rod 22 is installed on the top side wall of the positioning plate 24, and the positioning roller 21 is installed at the end of the electric push rod 22. The electric push rod 22 and the positioning roller 21 work together to adjust the position of plates of different widths. A connecting assembly is installed between the side wall of the lower clamping working plate 30 and the side wall of the feeding conveyor belt 6. The connecting assembly includes a limiting rod 61, a sliding rod 62, a rotating rod 63, an end rod 64, and a fixing block 65. The fixing block 65 is installed on the side wall of the feeding conveyor belt 6, and the end rod 64 is fixed to the side wall of the fixing block 65. The limiting rod 61 is rotatably installed on the outer periphery of the end rod 64. The side wall of the limiting rod 61 has a through groove. The sliding rod 62 passes through the through groove, and the rotating rod 63 is rotatably installed on the side wall of the end rod 64. A rotary switch is electrically connected to the feeding conveyor belt 6 between the slide bar 62 and the side wall of the lower clamping working plate 30. The rotary switch is installed on the end rod 64. A toggle block is installed on the side wall of the limit rod 61. During the process of the feeding conveyor belt sending the plate to the lower clamping working plate 30, a pressure sensor is installed on the positioning roller 21. After the pressure sensor receives the same pressure value, the lower clamping working plate 30 raises the plate to the height of the guide rail frame 1. When the plate descends with the lower clamping working plate 30 to a height higher than the feeding conveyor belt 6, the connecting component is located between the feeding conveyor belt 6 and the lower clamping working plate 30. The relative height can be judged by the angle change between the feeding conveyor belt 6 and the lower clamping working plate 30. When the extension line of the bottom surface of the plate can contact the surface of the feeding conveyor belt 6 when the lower clamping working plate 30 moves downward, the limit rod 61 at the corresponding angle drives the rotary switch to rotate and start the feeding conveyor belt 6.

[0044] As one embodiment of the present invention, refer to Figure 3 The pressure roller 42 has a variable groove 421 on its outer periphery to adapt to the edge sealing operation of the board with edge sealing strips of different widths. When processing boards with different side widths, the electric telescopic device moves to the width position of the required edge sealing strip, so that the width of the variable groove 421 on the pressure roller 42 changes to adapt to the processing of boards with different side widths. If a board with a different side width is changed during the processing, the worker only needs to change the corresponding edge sealing strip, which reduces downtime and improves production efficiency.

[0045] As one embodiment of the present invention, refer to Figure 6 A rubber strip is attached to the bottom surface of the upper clamping plate 311, and the rubber strip is distributed at equal intervals in an alternating manner. The rubber strip is attached between the plate and the upper clamping plate 311, which increases the static friction between the plate and the upper clamping plate 311, ensuring that the plate will not shift due to only being subjected to pressure on one side when the pressure roller 42 presses the sealing strip.

[0046] As one embodiment of the present invention, refer to Figure 6The lower clamp working plate 30 has an air hole 301, and a screen 302 is fixed on the inner circumference of the air hole 301. The surface of the screen 302 is flush with the surface of the lower clamp working plate 30. When the plate is unloaded, the air hole 301 of the lower clamp working plate 30 sprays upward flowing gas through the air pump.

[0047] Workflow:

[0048] In this embodiment, the processed board is a thick board with a length of 600mm, a width of 300mm, and a thickness of 18mm. The edge banding strip is made of PVC material with a thickness of 0.5mm and a width of 20mm. The edge banding adhesive used is a hot melt edge banding adhesive with a working temperature range of 170℃-200℃. Based on the required processed board, the guide rail frame 1 is 2500mm long and 2500mm wide. The push stroke of the electric push rod 51 in the edge banding assembly 4 is 400mm, and the width of the variable groove 421 in the positioning roller 21 is 18mm. The traveling speed around the edge banding assembly 4 is 100mm / s. Therefore, the time required for the edge banding operation of this specification is T = board circumference C / traveling speed V around the edge banding assembly 4, that is, T = 1800 / 100 = 18s.

[0049] First, the worker inputs the dimensions of the edge banding board into the CNC system. The adjustment component 2 moves the positioning roller 21 to the front end of the board at the predetermined position according to the board length. The worker places the board on one end of the feeding conveyor belt, which moves the board. One end of the board moves onto the positioning roller 21 of the adjustment component 2. Due to the forward thrust of the feeding conveyor belt, the board will continue to move towards the lower clamping working plate 30 after contacting the positioning roller 21, under the action of inertia, until the board moves to the surface of the lower clamping working plate 30.

[0050] After the sheet metal moves to the surface of the lower clamping working plate 30, the CNC system sends signals to the second push rod 32, the third push rod 35, and the fourth push rod 36. The second push rod 32, the third push rod 35, and the fourth push rod 36 rise simultaneously, lifting the lower clamping working plate 30 and moving the sheet metal to the inside of the horizontal plane of the guide rail frame 1 before stopping. The first push rod 31 pushes the upper clamping plate 311 onto the upper surface of the sheet metal, and the upper clamping plate 311 and the lower clamping working plate 30 clamp the sheet metal together. The edge banding assembly 4 is rapidly moved from the positioning origin to the right end of the board side. Electric push rod 51 pushes the glue applicator 41, pressure roller 42, cutter 43, and milling cutter 44, fixed on the multi-functional cabinet 45, onto the side of the board, applying pressure. Then, slider 49 begins to slide towards the left end of the board. The glue applicator 41 applies hot melt adhesive to the side of the board, and the pressure roller 42 tightly adheres the edge banding strip to the side of the board. When the cutter 43 reaches the left end of the board, it cuts the edge banding strip. Following the cutter 43, the milling cutter 44, moving towards the left end of the board, mills the edge banding strip flush with the side of the board. After processing one side of the board, the edge banding assembly 4 is turned via the corner of the guide rail frame 1, and the above operation is repeated until all sides of the board are processed. After processing all sides of the board, the edge banding assembly 4 returns to the positioning origin.

[0051] Then, the first push rod 31 rises upward, while the second push rod 32, the third push rod 35, and the fourth push rod 36 retract simultaneously. When the lower clamping working plate 30 lowers the edge-sealed sheet material to a point slightly above the surface of the feeding conveyor belt 6, the fourth push rod 36 stops retracting first, followed by the third push rod 35, and then the second push rod 32 retracts completely, causing the lower clamping working plate 30 to tilt towards the feeding conveyor belt. At the same time, the air pump blows air upward through the air holes 301 on the lower clamping working plate 30. As the lower clamping working plate 30 tilts towards the feeding conveyor belt, the rotating rod 6... 3. As the work plate of the fixture moves, the position of the slide bar 62 changes within the straight groove. As a result, the angle between the limit bar 61 and the horizontal plane changes. When the angle is 30°, it indicates that the extended line of the edge of the inclined plate is in contact with the end of the surface of the feeding conveyor belt 6. At this time, the limit bar 61 just turns the knob switch to the on state, and the power supply of the feeding conveyor belt 6 is turned on, so that the plate after edge sealing first slides along the lower work plate 30 of the fixture, and then the edge of the plate contacts the edge side of the surface of the feeding conveyor belt 6 and slowly moves to the surface of the feeding conveyor belt 6.

[0052] Although the beneficial effects of the present invention have been shown in detail and embodiments have been provided in this specification, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic straight edge banding machine, comprising a guide rail frame (1), characterized in that: It also includes an adjustment component (2), a sheet material limiting component (3), a surrounding edge sealing component (4), an feeding conveyor belt (5), and a discharging conveyor belt (6). The adjustment component (2) and the sheet material limiting component (3) are both located inside the guide rail frame (1). The surrounding edge sealing component (4) is mounted on the guide rail frame (1). The guide rail frame (1) drives the surrounding edge sealing component (4) to make a U-shaped movement. The feeding conveyor belt (5) and the discharging conveyor belt (6) are located on both sides of the guide rail frame (1), and the feeding conveyor belt (5)... The ends of the feed conveyor belt (5) and the unloading conveyor belt (6) extend to the inside of the guide rail frame (1). The plate limiting component (3) is set at the center of the feed conveyor belt (5) and the unloading conveyor belt (6). The adjusting component (2) is installed between the feed conveyor belt (5) and the plate limiting component (3). The adjusting component (2) guides the plate to move from the feed conveyor belt (5) to the plate limiting component (3). The plate limiting component (3) controls the plate to slide from a certain height to the unloading conveyor belt (6) at a suitable angle. The plate limiting assembly (3) includes a first push rod (31), an upper clamp plate (311), a rotating handle (37), an edge banding strip placement tray (38), a lower clamp working plate (30), a lower clamp base plate (39), a second push rod (32), a third push rod (35), a fourth push rod (36), a support cylinder (34), a support spring (33), and a gantry frame; the first push rod (31) is installed on the gantry frame, the upper clamp plate (311) is installed at the bottom of the first push rod (31), the rotating handle (37) is installed on the side wall of the upper clamp plate (311), and the edge banding strip placement tray (38) is installed on the multi-functional cabinet (45). On the surface, the lower clamp base plate (39) is located directly below the upper clamp plate (311). The second push rod (32), the third push rod (35), the fourth push rod (36) and the support cylinder (34) are all fixedly installed on the lower clamp base plate (39). The lower clamp working plate (30) is rotatably installed between the top of the second push rod (32) and the fourth push rod (36). The support cylinder (34) is provided with a support spring (33) whose top abuts against the lower clamp working plate (30). The second push rod (32), the third push rod (35) and the fourth push rod (36) change the inclination of the lower clamp working plate (30) by extending and retracting to different lengths. The bottom surface of the upper clamp plate (311) is fitted with rubber strips, and the rubber strips are distributed at equal intervals in an alternating pattern; The lower clamp working plate (30) is provided with an air hole (301), and a screen (302) is fixed on the inner circumference of the air hole (301). The surface of the screen (302) is flush with the surface of the lower clamp working plate (30). A connecting assembly is installed between the side wall of the lower clamping working plate (30) and the side wall of the feeding conveyor belt (6), and the connecting assembly includes a limiting rod (61), a sliding rod (62), a rotating rod (63), an end rod (64) and a fixing block (65). The fixing block (65) is installed on the side wall of the feeding conveyor belt (6), the end rod (64) is fixed on the side wall of the fixing block (65), the limiting rod (61) is rotatably installed on the outer periphery of the end rod (64), the side wall of the limiting rod (61) is constructed with a straight through groove, the sliding rod (62) is installed in the straight through groove, and the rotating rod (63) is rotatably installed between the sliding rod (62) and the side wall of the lower clamping working plate (30). The feeding conveyor belt (6) is electrically connected to a rotary switch, and the rotary switch is mounted on the end rod (64). The side wall of the limiting rod (61) is equipped with a toggle block.

2. The automatic straight-line edge banding machine according to claim 1, characterized in that: The surrounding edge sealing assembly (4) includes an applicator (41), a pressure roller (42), a cutter (43), a milling cutter (44), a multi-functional cabinet (45), a robotic arm (46), a motor (47), a slider (49), a glue pot (50), and an electric push rod (51). The slider (49) is slidably mounted on the guide rail frame (1) track. The robotic arm (46) is mounted on the side wall of the slider (49). The motor (47) is mounted on the side wall of the robotic arm (46). The electric push rod (51) is mounted on the end of the robotic arm (46). The multi-functional cabinet (45) is connected to the electric push rod (51). The milling cutter (44), the cutter (43), the pressure roller (42), and the applicator (41) are sequentially mounted on the side wall of the multi-functional cabinet (45). The glue pot (50) is mounted on the surface of the multi-functional cabinet (45) and is set against the edge side of the surface of the multi-functional cabinet (45).

3. An automatic straight-line edge banding machine according to claim 1, characterized in that: The adjustment assembly (2) includes a positioning roller (21), an electric push rod (22), a slide rail (23), and a positioning plate (24). The slide rail (23) is installed on the ground, the positioning plate (24) is installed on the slide rail (23), the electric push rod (22) is installed on the top side wall of the positioning plate (24), and the positioning roller (21) is installed at the end of the electric push rod (22). The electric push rod (22) and the positioning roller (21) work together to adjust the position of plates of different widths.

4. An automatic straight-line edge banding machine according to claim 2, characterized in that: The pressure roller (42) has a variable groove (421) on its outer periphery to adapt to the edge sealing operation of the board by edge sealing strips of different widths.

5. An automatic straight-line edge banding machine according to claim 1, characterized in that: The heights of the feeding conveyor belt (5) and the unloading conveyor belt (6) are different, and the height of the unloading conveyor belt (6) is higher than that of the feeding conveyor belt (5).

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