Edge trimming device for automatic edge banding machine and automatic edge banding machine

Abstract

The present invention discloses a trimming device for an automatic edge banding machine and the automatic edge banding machine, which relates to the field of sheet processing equipment. By providing a first telescopic component and a second telescopic component, the upper sliding seat vertically slidably connected to the mounting seat is connected to the frame through the first telescopic component, and the lower sliding seat vertically slidably connected to the mounting seat is connected to the mounting seat through the second telescopic component, so that the positions of the first grinding component and the second grinding component can be automatically controlled. According to specific needs, the positions of the first grinding component and the second grinding component can be automatically adjusted to make them contact or non-contact with the sheet, without manual adjustment by workers. Therefore, the operation is convenient and the efficiency is high.

Description

Technical Field

[0001] The present invention relates to the field of sheet processing equipment, and particularly relates to a trimming device for an automatic edge banding machine and an automatic edge banding machine. Background Art

[0002] In existing edge banding machines, there is usually a trimming device for grinding the upper and lower edges of the sheet after edge pasting. During use, the trimming knives of the trimming device grind the upper and lower edges of the sheet simultaneously.

[0003] However, when some sheets need to be trimmed on only one edge, the corresponding trimming device needs to be adjusted so that the corresponding trimming knife does not contact the sheet. In existing edge banding machines, the position of the trimming knife of the trimming device needs to be adjusted manually. Therefore, the operation is inconvenient and the efficiency is low.

[0004] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0005] In view of the above deficiencies of the existing technology, the purpose of the present invention is to provide a trimming device for an automatic edge banding machine and an automatic edge banding machine, aiming to solve the problems of inconvenient operation and low efficiency caused by the need to manually adjust the position of the trimming knife in the existing automatic edge banding machine.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A trimming device for an automatic edge banding machine includes a mounting base fixed on a frame. A upper sliding seat and a lower sliding seat are vertically slidably connected to the mounting base, and the upper sliding seat is arranged above the lower sliding seat. A first telescopic component is fixed on the upper sliding seat, and the output end of the first telescopic component is connected to the frame. A second telescopic component is fixed on the lower sliding seat, and the output end of the second telescopic component is connected to the mounting base. A first grinding component is installed on the upper sliding seat, and a second grinding component is installed on the lower sliding seat.

[0008] In the trimming device for an automatic edge banding machine, a cantilever is fixed on the frame. The output end of the first telescopic component is connected to a first connecting rod. The upper end of the first connecting rod penetrates through the cantilever, and the upper end of the first connecting rod is threadedly connected with a first nut and a second nut. The first nut and the second nut are respectively located on the upper and lower sides of the cantilever.

[0009] A connecting piece is fixed on the mounting base. The output end of the second telescopic component is connected to a second connecting rod. The second connecting rod penetrates through the connecting piece, and the second connecting rod is threadedly connected with a third nut and a fourth nut. The third nut and the fourth nut are respectively located on the upper and lower sides of the connecting piece.

[0010] In the trimming device for an automatic edge banding machine described above, the first grinding assembly includes a first slide seat longitudinally and slidably connected to the upper slide seat. A third telescopic assembly for driving the first slide seat to move is connected to the upper slide seat. An upper grinding motor is connected to the first slide seat, and an upper grinding cutter is fixed on the output shaft of the upper grinding motor.

[0011] The second grinding assembly includes a second slide seat longitudinally and slidably connected to the lower slide seat. A fourth telescopic assembly for driving the second slide seat to move is connected to the lower slide seat. A lower grinding motor is connected to the second slide seat, and a lower grinding cutter is fixed on the output shaft of the lower grinding motor.

[0012] In the trimming device for an automatic edge banding machine described above, two upper limit discs are rotatably connected to the first slide seat. The surfaces of the two upper limit discs for contacting the board are arranged at 90 degrees, and the upper grinding cutter is placed between the two upper limit discs.

[0013] Two lower limit discs are rotatably connected to the second slide seat. The surfaces of the two lower limit discs for contacting the board are arranged at 90 degrees, and the lower grinding cutter is placed between the two lower limit discs.

[0014] In the trimming device for an automatic edge banding machine described above, a first connecting plate is also slidably connected to the first slide seat. The upper grinding motor is installed on the first connecting plate, and the first slide seat is connected with a fifth telescopic assembly for driving the first connecting plate to move.

[0015] A second connecting plate is also slidably connected to the second slide seat. The lower grinding motor is installed on the second connecting plate, and the second slide seat is connected with a sixth telescopic assembly for driving the second connecting plate to move.

[0016] In the trimming device for an automatic edge banding machine described above, the first telescopic assembly, the second telescopic assembly, the third telescopic assembly, the fourth telescopic assembly, the fifth telescopic assembly, and the sixth telescopic assembly are all electric cylinders.

[0017] In the trimming device for an automatic edge banding machine described above, a first arc-shaped groove is provided on the first slide seat. A first angle adjusting plate is fixed on the first arc-shaped groove by screws. The first connecting plate is slidably connected to the first angle adjusting plate, and the fifth telescopic assembly is connected between the first angle adjusting plate and the first connecting plate.

[0018] A second arc-shaped groove is provided on the second slide seat. A second angle adjusting plate is fixed on the second arc-shaped groove by screws. The first connecting plate is slidably connected to the second angle adjusting plate, and the fifth telescopic assembly is connected between the second angle adjusting plate and the first connecting plate.

[0019] In the trimming device for an automatic edge banding machine described above, the mounting base is in a "C" shape, and a guiding column is vertically arranged on the mounting base. The upper sliding seat and the lower sliding seat are slidably connected to the guiding column, and the upper grinding assembly and the lower grinding assembly are respectively arranged on both sides of the mounting base.

[0020] An automatic edge banding machine includes a machine frame composed of a fixed machine frame, a movable machine frame and a lifting assembly. The lifting assembly is connected between the fixed machine frame and the movable machine frame. A conveying assembly is installed on the fixed machine frame. It also includes at least one group of the above-mentioned trimming devices. The trimming device is placed on one side of the conveying assembly, and the mounting base of the trimming device is fixed on the fixed machine frame, and the cantilever of the trimming device is fixed on the movable machine frame.

[0021] Beneficial effects: Through the arrangement of the first telescopic assembly and the second telescopic assembly, and the upper sliding seat slidably connected vertically on the mounting base is connected to the machine frame through the first telescopic assembly, and the lower sliding seat slidably connected vertically on the mounting base is connected to the mounting base through the second telescopic assembly, so that the positions of the first grinding assembly and the second grinding assembly can be automatically controlled. According to specific needs, the positions of the first grinding assembly and the second grinding assembly can be automatically adjusted to make them in contact or non-contact with the board, without manual adjustment, so the operation is convenient and the efficiency is high. Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the trimming device for an automatic edge banding machine Figure One .

[0023] Figure 2 is a three-dimensional view of the trimming device for an automatic edge banding machine Figure Two .

[0024] Figure 3 is a three-dimensional view of the trimming device for an automatic edge banding machine Figure Three .

[0025] Figure 4 is a three-dimensional view of the trimming device for an automatic edge banding machine Figure Four .

[0026] Figure 5 is a three-dimensional view of the automatic edge banding machine.

[0027] Description of main component symbols: 100 - frame, 110 - fixed frame, 120 - movable frame, 121 - cantilever, 130 - lifting assembly, 200 - edge trimming device, 210 - mounting base, 211 - guide post, 220 - upper sliding seat, 221 - first telescopic assembly, 222 - first connecting rod, 223 - first nut, 224 - second nut, 230 - lower sliding seat, 231 - second telescopic assembly, 232 - connecting piece, 233 - second connecting rod, 234 - third nut, 235 - fourth nut, 240 - first grinding assembly, 241 - upper grinding motor, 242 - upper grinding knife, 243 - upper limit disc, 250 - second grinding assembly, 251 - lower grinding motor, 252 - lower grinding knife, 253 - lower limit disc, 260 - first sliding seat, 261 - third telescopic assembly, 262 - first arc-shaped groove, 263 - first angle adjusting plate, 270 - second sliding seat, 271 - fourth telescopic assembly, 272 - second arc-shaped groove, 273 - second angle adjusting plate, 280 - first connecting plate, 281 - fifth telescopic assembly, 290 - second connecting plate, 291 - sixth telescopic assembly. Detailed implementation

[0028] The present invention provides an edge trimming device for an automatic edge banding machine and an automatic edge banding machine. To make the purpose, technical solution and effects of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the protection scope of the present invention.

[0029] Refer to Figure 1 and Figure 2 An edge trimming device for an automatic edge banding machine, comprising a mounting base 210 fixed on a frame 100. An upper sliding seat 220 and a lower sliding seat 230 are vertically slidably connected to the mounting base 210, and the upper sliding seat 220 is arranged above the lower sliding seat 230. A first telescopic assembly 221 is fixed on the upper sliding seat 220, and the output end of the first telescopic assembly 221 is connected to the frame 100. A second telescopic assembly 231 is fixed on the lower sliding seat 230, and the output end of the second telescopic assembly 231 is connected to the mounting base 210. A first grinding assembly 240 is installed on the upper sliding seat 220, and a second grinding assembly 250 is installed on the lower sliding seat 230. The first grinding assembly 240 is used to grind the upper edge of the edge-bonding position of the board, and the second grinding assembly 250 is used to grind the lower edge of the edge-bonding position of the board.

[0030] In the above, since the mounting base 210 is fixed to the frame 100, the upper sliding seat 220 is slidably connected to the mounting base 210, and the upper sliding seat 220 is connected to the frame 100 through the first telescopic assembly 221. Therefore, by controlling the extension and retraction of the output end of the first telescopic assembly 221, the upper sliding seat 220 mounted on the mounting base 210 is pulled to slide up and down, realizing the lifting of the first grinding assembly 240. When it is necessary to grind the upper edge of the edge of the plate, the output end of the first telescopic assembly 221 is in the extended state; when it is not necessary to grind the upper edge of the edge of the plate, the output end of the first telescopic assembly 221 is controlled to contract, so that the first grinding assembly 240 rises and no longer contacts the plate.

[0031] Similarly, when it is necessary to grind the lower edge of the edge of the plate, the output end of the second telescopic assembly 231 is in the extended state; when it is not necessary to grind the lower edge of the edge of the plate, the output end of the second telescopic assembly 231 is controlled to contract, so that the second grinding assembly 250 descends and no longer contacts the plate.

[0032] In the above, through the settings of the first telescopic assembly 221 and the second telescopic assembly 231, the positions of the first grinding assembly 240 and the second grinding assembly 250 can be automatically controlled without manual adjustment, so the operation is convenient and the efficiency is high. In practical applications, the first telescopic assembly 221 and the second telescopic assembly 231 are preferably electric cylinders, and the extension amount of the output ends of the first telescopic assembly 221 and the second telescopic assembly 231 can be adjusted according to needs to achieve the effect of accurately controlling the grinding amount of the first grinding assembly 240 and the second grinding assembly 250 on the plate.

[0033] In a preferred embodiment, a cantilever 121 is fixed to the frame 100. The output end of the first telescopic assembly 221 is connected to a first connecting rod 222. The upper end of the first connecting rod 222 penetrates through the cantilever 121, and the upper end of the first connecting rod 222 is threadedly connected with a first nut 223 and a second nut 224. The first nut 223 and the second nut 224 are respectively located on the upper and lower sides of the cantilever 121, that is, the first nut 223 and the second nut 224 are clamped on the cantilever 121. In this embodiment, by adjusting the positions of the first nut 223 and the second nut 224 on the first connecting rod 222, the position of the first grinding assembly 240 relative to the plate when the output end of the first telescopic assembly 221 is in the extended state or the contracted state can be adjusted.

[0034] Similarly, a connecting piece 232 is fixed on the mounting base 210. The output end of the second telescopic assembly 231 is connected to a second connecting rod 233. The second connecting rod 233 penetrates through the connecting piece 232, and a third nut 234 and a fourth nut 235 are threadedly connected to the second connecting rod 233. The third nut 234 and the fourth nut 235 are respectively disposed on the upper and lower sides of the connecting piece 232. By adjusting the positions of the third nut 234 and the fourth nut 235 on the second connecting rod 233, the position of the second grinding assembly 250 relative to the plate when the output end of the second telescopic assembly 231 is in the extended state or the contracted state can be adjusted.

[0035] Specifically, the first grinding assembly 240 includes a first sliding seat 260 longitudinally slidably connected to the upper sliding seat 220. A third telescopic assembly 261 for driving the first sliding seat 260 to move is connected to the upper sliding seat 220. The third telescopic assembly 261 can drive the first sliding seat 260 to move away from / towards the plate. The cylinder end of the third telescopic assembly 261 is fixed to the upper sliding seat 220, and the output end of the third telescopic assembly 261 is connected to the first sliding seat 260. An upper grinding motor 241 is connected to the first sliding seat 260. An upper grinding cutter 242 is fixed to the output shaft of the upper grinding motor 241. The upper grinding motor 241 can drive the upper grinding cutter 242 to rotate, so that the upper grinding cutter 242 grinds the upper edge of the plate.

[0036] Similarly, the second grinding assembly 250 includes a second sliding seat 270 longitudinally slidably connected to the lower sliding seat 230. A fourth telescopic assembly 271 for driving the second sliding seat 270 to move is connected to the lower sliding seat 230. The fourth telescopic assembly 271 can drive the second sliding seat 270 to move away from / towards the plate. The cylinder end of the fourth telescopic assembly 271 is fixed to the lower sliding seat 230, and the output end of the fourth telescopic assembly 271 is connected to the second sliding seat 270. A lower grinding motor 251 is connected to the second sliding seat 270. A lower grinding cutter 252 is fixed to the output shaft of the lower grinding motor 251. The lower grinding motor 251 can drive the lower grinding cutter 252 to rotate, so that the lower grinding cutter 252 grinds the lower edge of the plate.

[0037] Two upper limiting discs 243 are rotatably connected to the first sliding seat 260. The surfaces of the two upper limiting discs 243 for contacting the plate are arranged at 90 degrees. The upper grinding cutter 242 is disposed between the two upper limiting discs 243. Among them, the two upper limiting discs 243 are respectively arranged corresponding to the top surface and the side surface of the plate, and the two upper limiting discs 243 are in contact with the plate for limiting the plate. The upper grinding cutter 242 is disposed between the two upper limiting discs 243, that is, at the position of the upper edge where the top surface and the side surface of the plate intersect.

[0038] Similarly, two lower limit discs 253 are rotatably connected to the second sliding seat 270. The surfaces of the two lower limit discs 253 for contacting the plate are arranged at 90 degrees. The lower grinding knife 252 is placed between the two lower limit discs 253. Among them, the two lower limit discs 253 are respectively arranged corresponding to the bottom surface and the side surface of the plate, and the two lower limit discs 253 are in contact with the plate for limiting the plate. The lower grinding knife 252 is placed between the two lower limit discs 253, that is, at the position of the lower edge where the bottom surface and the side surface of the plate intersect.

[0039] In a preferred embodiment, a first connecting plate 280 is also slidably connected to the first sliding seat 260. The upper grinding motor 241 is installed on the first connecting plate 280. The first sliding seat 260 is connected with a fifth telescopic assembly 281 for driving the first connecting plate 280 to move. Among them, since the upper limit disc 243 is connected to the first sliding seat 260 and the upper grinding motor 241 is installed on the first connecting plate 280 that can move relative to the first sliding seat 260, therefore, by driving the first connecting plate 280 to move through the fifth telescopic assembly 281, the relative movement between the upper grinding knife 242 and the upper limit disc 243 can be realized. When the upper limit disc 243 is in the position of contacting the plate, the upper grinding knife 242 can be in the position of grinding the edge of the plate or in the position of not grinding the edge of the plate. Similarly, a second connecting plate 290 is also slidably connected to the second sliding seat 270. The lower grinding motor 251 is installed on the second connecting plate 290. The second sliding seat 270 is connected with a sixth telescopic assembly 291 for driving the second connecting plate 290 to move. By driving the second connecting plate 290 to move through the sixth telescopic assembly 291, the relative movement between the lower grinding knife 252 and the lower limit disc 253 can be realized.

[0040] Refer to Figure 3 and Figure 4 In a preferred embodiment, a first arc-shaped groove 262 is provided on the first sliding seat 260. The center of the first arc-shaped groove 262 is located on the side where the upper grinding knife 242 is arranged. A first angle adjusting plate 263 is fixed on the first arc-shaped groove 262 by screws. The first connecting plate 280 is slidably connected to the first angle adjusting plate 263. The fifth telescopic assembly 281 is connected between the first angle adjusting plate 263 and the first connecting plate 280. Among them, the first angle adjusting plate 263 is locked on the first arc-shaped groove 262 of the first sliding seat 260 by screws. When it is necessary to adjust the angle between the upper grinding knife 242 and the plate, loosen the corresponding screws so that the first angle adjusting plate 263 can slide on the first arc-shaped groove 262, thereby realizing the adjustment of the angle between the upper grinding knife 242 and the plate. After the adjustment is completed, tighten the corresponding screws to fix the first angle adjusting plate 263 on the first sliding seat 260.

[0041] Similarly, a second arc-shaped groove 272 is provided on the second sliding seat 270, and a second angle adjustment plate 273 is fixed on the second arc-shaped groove 272 by screws. The first connecting plate 280 is slidably connected to the second angle adjustment plate 273, and a fifth telescopic assembly 281 is connected between the second angle adjustment plate 273 and the first connecting plate 280. By adjusting the position of the second angle adjustment plate 273, the angle between the downward grinding knife 252 and the plate can be adjusted.

[0042] Among the above, the third telescopic assembly 261, the fourth telescopic assembly 271, the fifth telescopic assembly 281, and the sixth telescopic assembly 291 are all preferably electric cylinders.

[0043] In a preferred embodiment, the mounting seat 210 is in a "C" shape, and a guide post 211 is vertically arranged on the mounting seat 210. The upper sliding seat 220 and the lower sliding seat 230 are slidably connected to the guide post 211. The upper grinding assembly and the lower grinding assembly are respectively arranged on both sides of the mounting seat 210, so that there is a dislocation between the upper grinding assembly and the lower grinding assembly in the plate conveying direction, so that the upper grinding assembly and the lower grinding assembly will not interfere with each other during operation.

[0044] Refer to Figure 5 , an automatic edge banding machine, including a frame 100 composed of a fixed frame 110, a movable frame 120, and a lifting assembly 130. The lifting assembly 130 is connected between the fixed frame 110 and the movable frame 120. Among them, the fixed frame 110 is fixed on the ground, and the lifting assembly 130 can drive the movable frame 120 to move relative to the fixed frame 110 to realize the lifting of the movable frame 120. Specifically, a conveying assembly (not marked in the figure) is installed on the fixed frame 110. That is, when it is necessary to convey plates of different thicknesses, the height of the movable frame 120 can be adjusted so that the pressing roller on the movable frame 120 and the conveying assembly have a distance corresponding to the thickness of the plate, so that the plate can pass through this position. The conveying assembly is an existing belt conveying structure or a plate conveying structure.

[0045] Among the above, the lifting assembly 130 can be an existing turbine screw lifting mechanism, that is, its lifting can be automatically controlled. Preferably, there are two lifting assemblies 130, and the output ends of the lifting assemblies 130 are fixedly connected to the fixed frame 110, and the boxes of the lifting assemblies 130 are fixed on the movable frame 120. The input ends of the two lifting assemblies 130 are connected by a rotating shaft, so that one motor can drive all the lifting assemblies 130 to lift synchronously. In practical applications, the rotating shaft on the two lifting assemblies 130 can be divided into two sections, and the two sections of the rotating shaft are connected by a coupling. When only one of the lifting assemblies 130 needs to be adjusted to lift, the two sections of the rotating shaft can be separated at the coupling.

[0046] Refer to Figures 1 - 5The automatic edge banding machine further includes at least one set of the trimming device 200. The trimming device 200 is disposed on one side of the conveying assembly, and the mounting base 210 of the trimming device 200 is fixed to the fixed frame 110, and the cantilever 121 of the trimming device 200 is fixed to the movable frame 120. Since the mounting base 210 is fixed to the fixed frame 110 and the cantilever 121 is fixed to the movable frame 120, when the lifting assembly 130 adjusts the lifting of the movable frame 120, the upper grinding assembly connected to the cantilever 121 also moves together, so that the upper grinding assembly and the lower grinding assembly can be synchronously adjusted to a position suitable for the edge of the board. Therefore, the adjustment is more convenient.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounting", "connecting" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A trimming device for an automatic edge banding machine, comprising a mounting seat fixed on a frame, wherein an upper sliding seat and a lower sliding seat are vertically slidably connected to the mounting seat, and the upper sliding seat is arranged above the lower sliding seat; characterized in that, A first telescopic component is fixed on the upper sliding seat, and the output end of the first telescopic component is connected to the frame; a second telescopic component is fixed on the lower sliding seat, and the output end of the second telescopic component is connected to the mounting seat; a first grinding component is installed on the upper sliding seat, and a second grinding component is installed on the lower sliding seat; A cantilever is fixed on the frame, and a first connecting rod is connected to the output end of the first telescopic component. The upper end of the first connecting rod penetrates through the cantilever, and the upper end of the first connecting rod is threadedly connected with a first nut and a second nut, and the first nut and the second nut are respectively located on the upper and lower sides of the cantilever; A connecting piece is fixed on the mounting seat, and a second connecting rod is connected to the output end of the second telescopic component. The second connecting rod penetrates through the connecting piece, and the second connecting rod is threadedly connected with a third nut and a fourth nut, and the third nut and the fourth nut are respectively located on the upper and lower sides of the connecting piece; The first grinding component includes a first sliding seat longitudinally slidably connected to the upper sliding seat. A third telescopic component for driving the first sliding seat to move is connected to the upper sliding seat. An upper grinding motor is connected to the first sliding seat, and an upper grinding knife is fixed on the output shaft of the upper grinding motor; The second grinding component includes a second sliding seat longitudinally slidably connected to the lower sliding seat. A fourth telescopic component for driving the second sliding seat to move is connected to the lower sliding seat. A lower grinding motor is connected to the second sliding seat, and a lower grinding knife is fixed on the output shaft of the lower grinding motor; Two upper limit disks are rotatably connected to the first sliding seat. The surfaces of the two upper limit disks for contacting the plate are arranged at 90 degrees, and the upper grinding knife is located between the two upper limit disks; Two lower limit disks are rotatably connected to the second sliding seat. The surfaces of the two lower limit disks for contacting the plate are arranged at 90 degrees, and the lower grinding knife is located between the two lower limit disks; A first connecting plate is also slidably connected to the first sliding seat. The upper grinding motor is installed on the first connecting plate, and the first sliding seat is connected with a fifth telescopic component for driving the first connecting plate to move; A second connecting plate is also slidably connected to the second sliding seat. The lower grinding motor is installed on the second connecting plate, and the second sliding seat is connected with a sixth telescopic component for driving the second connecting plate to move; The first telescopic component, the second telescopic component, the third telescopic component, the fourth telescopic component, the fifth telescopic component and the sixth telescopic component are all electric cylinders; The relative movement between the upper grinding knife and the upper limit disk enables the upper grinding knife to be in a position where it can grind the edge of the plate or not grind the edge of the plate when the upper limit disk is in a position abutting against the plate; The relative movement between the lower grinding knife and the lower limit disk enables the lower grinding knife to be in a position where it can grind the edge of the plate or not grind the edge of the plate when the upper limit disk is in a position abutting against the plate.

2. The trimming device for an automatic edge banding machine according to claim 1, characterized in that, A first arc-shaped groove is provided on the first sliding seat. A first angle adjusting plate is fixed on the first arc-shaped groove by screws. The first connecting plate is slidably connected to the first angle adjusting plate, and the fifth telescopic component is connected between the first angle adjusting plate and the first connecting plate; A second arc-shaped groove is provided on the second sliding seat, and a second angle adjustment plate is fixed on the second arc-shaped groove by screws. The first connecting plate is slidably connected to the second angle adjustment plate, and a fifth telescopic assembly is connected between the second angle adjustment plate and the first connecting plate.

3. The trimming device for an automatic edge banding machine according to claim 1, characterized in that, The mounting seat is in a "C" shape, and a guiding column is vertically arranged on the mounting seat. The upper sliding seat and the lower sliding seat are slidably connected to the guiding column, and the upper grinding assembly and the lower grinding assembly are respectively arranged on both sides of the mounting seat.

4. An automatic edge banding machine, characterized in that, It includes a frame composed of a fixed frame, a movable frame and a lifting assembly. The lifting assembly is connected between the fixed frame and the movable frame. A conveying assembly is installed on the fixed frame. It further includes at least one trimming device as described in Claim 1. The trimming device is placed on one side of the conveying assembly, and the mounting seat of the trimming device is fixed on the fixed frame, and the cantilever of the trimming device is fixed on the movable frame.

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