Self-adaptive plate linear edge sealing system

Abstract

The invention relates to the technical field of plate processing equipment, in particular to a self-adaptive plate linear edge sealing system which comprises an edge sealing machine body provided with a defoaming unit, the defoaming unit is used for preventing an edge sealing belt from falling off and comprises a cavity, an air cylinder, a clamping plate, a motor and a connecting rubber film, and the air cylinder is installed on the edge sealing machine body and can drive the cavity to move; the cavity is provided with an exhaust pipe connected with vacuumizing equipment, the clamping plates are arranged on the upper side and the lower side of the cavity respectively and used for clamping plates, the clamping plates and the cavity form a moving pair in the vertical direction, and the motor is arranged on the rear side of the cavity and drives the rolling shaft to drive the clamping plates through the swing arm. The hot melt adhesive edge banding device can adapt to plates with different thicknesses, does not need to frequently replace adapters, can eliminate bubbles to enable hot melt adhesive to form an intrusive interface on the edges of the plates, and is beneficial to improving the bonding strength of the edge banding belt and the plates and avoiding stripping.

Description

Technical Field

[0001] The present invention relates to the field of sheet processing equipment, and more particularly to an adaptive linear edge banding system for sheets. Background Art

[0002] A wood edge banding machine is a special equipment used in the furniture manufacturing or woodworking industry. It is mainly used for edge banding of sheets (such as particle board, medium density fiberboard, etc.). Through automated operations, an edge banding strip (PVC, ABS, wood veneer, etc.) is adhered to the edge of the sheet, and processes such as cutting and trimming are completed, replacing traditional manual edge banding, making its appearance more beautiful and durable, while preventing moisture intrusion and edge wear.

[0003] In actual production and processing of wood edge banding, local peeling may occur, resulting in the edge banding strip peeling off. The specific reasons are mainly as follows:

[0004] The adhesive layer (treatment agent) on the back of the edge banding strip is thin, resulting in a decrease in the affinity between the edge banding strip and the hot melt adhesive;

[0005] After the hot melt adhesive melts and flows, air bubbles are formed between the edge banding strip and the wood edge, resulting in a decrease in the local bonding strength of the edge banding strip;

[0006] The purpose of the present invention is to propose a new sheet edge banding equipment to solve the above problems, so as to improve the bonding strength between the edge banding strip and the sheet edge and avoid the peeling of the edge banding strip. Summary of the Invention

[0007] The purpose of the present invention is to provide an adaptive linear edge banding system for sheets to solve the problems mentioned in the background art.

[0008] To achieve the above object, the present invention provides the following technical solutions: including an edge banding machine main body, on which a conveying unit, a pre-milling unit, a glue coating and tape feeding unit, and a defoaming unit are provided. The conveying unit is used to convey the sheet on the edge banding machine main body, the pre-milling unit is used to mill the edge of the sheet flat, and the glue coating and tape feeding unit is used to apply glue to the edge of the sheet and convey the edge banding tape. The conveying unit, the pre-milling unit, and the glue coating and tape feeding unit are common mechanisms on existing edge banding machines, and their specific structures and working principles are not essential technical features nor the content to be protected by the applicant. Therefore, they will not be further disclosed, and it will not affect the implementation of the technical solution.

[0009] The defoaming unit is used to prevent the edge banding from falling off. The defoaming unit includes a cavity, a cylinder, clamping plates, a motor, and a connecting rubber membrane. The longitudinal section of the cavity is in a [shape] for mating with the edge of the board. The cylinder is installed on the main body of the edge banding machine and can drive the cavity to move. An air extraction pipe connected to a vacuum extraction device is provided on the cavity. The clamping plates are respectively arranged on the upper and lower sides of the cavity. The clamping plates are used to clamp the board and the clamping plates and the cavity form a moving pair in the vertical direction. The motor is arranged at the rear of the cavity. The motor shaft is connected to the middle of a swing arm located inside the cavity. Both ends of the swing arm are provided with rollers and the rollers abut against the clamping plates on different sides of the cavity. The connecting rubber membrane connects the rear sides of the clamping plates on different sides of the cavity. One end of the air extraction pipe is communicated with the connecting rubber membrane.

[0010] To optimize the above technical solution, a further measure is taken: it further includes a sealing unit. The sealing unit is located on the left and right sides of the cavity. The sealing unit includes a sealing rubber membrane, a fixing plate, a movable plate, and a rubber support block. The sealing rubber membrane is located on the left and right sides of the clamping plates and the sealing rubber membrane connects the clamping plates on different sides of the cavity. One end of the fixing plate is hinged to a clamping plate. The fixing plate is located behind the sealing rubber membrane. A groove for accommodating the movable plate is formed on the fixing plate. The movable plate is movable inside the groove and forms a moving pair with the groove. The rubber support block is located behind the fixing plate and is connected to any one of the clamping plates. The purpose of setting the sealing unit is to seal the cavity and the edge of the board, thereby improving the vacuum extraction effect of the air extraction pipe to ensure defoaming.

[0011] The sealing rubber membrane refers to the rubber membrane that plays a sealing role, and the connecting rubber membrane refers to the rubber membrane that plays a connecting role to connect the clamping plates. The specific rubber material used is not the technical content protected by the applicant. Therefore, no further explanation is made on its specific material. Technicians can select a suitable rubber material according to actual needs during specific implementation, which will not have a substantial impact on the technical effect.

[0012] As a further improvement to the above technical solution: it further includes a belt stabilizing unit. The belt stabilizing unit includes a connecting plate, a connecting rod, and a roller. A bolt passes through the opening on the connecting plate to fix the connecting plate on the main body of the edge banding machine. One end of the connecting rod is connected to the connecting plate to form a rotating pair. The other end of the connecting rod is provided with a roller. The purpose of setting the belt stabilizing unit is to improve the stability of the edge banding at the edge of the board and avoid the edge banding running during the period when the hot melt adhesive has not completely solidified after gluing the edge banding, resulting in an increase in the cutting amount of the edge banding in the later stage.

[0013] As a further improvement to the technical solution: a convex edge is formed on the outer side of the roller. The cross section of the convex edge is wedge-shaped. The number of connecting rods is 2 and the connecting rods are connected by a connecting spring. The purpose of setting the convex edge is to concentrate stress to ensure that the edge banding is closely attached to the edge of the board.

[0014] As an improvement to the foregoing technical solution: a limiting rod is formed on the clamping plate. The limiting rod vertically penetrates through the cavity to form a moving pair in the vertical direction with the cavity. An anti-detachment plate is provided at the end of the limiting rod, and a return spring is arranged between the anti-detachment plate and the cavity. When the clamping plate clamps the edge of the plate to perform the clamping action, the return spring is compressed. After the clamping action is completed, the shape of the return spring is restored to drive the clamping plate to reset.

[0015] Furthermore: the surface of the clamping plate is sprayed with a polytetrafluoroethylene coating, and an electric heating rod is arranged outside the clamping plate. The polytetrafluoroethylene coating has excellent chemical corrosion resistance and high temperature resistance, and the surface friction coefficient is extremely low, which can reduce the adhesion between the hot melt adhesive and the clamping plate. The purpose of setting the electric heating rod is to increase the temperature of the clamping plate and improve the fluidity of the hot melt adhesive located between the clamping plates.

[0016] From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0017] a. Under the action of negative pressure, the hot melt adhesive can invade the gaps in the material of the plate itself to form an invasive interface, which helps to improve the bonding strength between the edge banding and the plate, avoid the peeling of the edge banding, and has little requirement for the thickness of the treatment agent;

[0018] b. The defoaming unit and the plugging unit can adapt to plates of different thicknesses, and the applicable range is wide without the need to frequently replace the fittings.

[0019] c. The bubbles in the hot melt adhesive can be eliminated through negative pressure, which can ensure the bonding strength between the edge banding and the edge of the plate and avoid the peeling of the edge banding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0021] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0022] Figure 2 is a three-dimensional structure schematic diagram of the defoaming device;

[0023] Figure 3 is a disassembled structure schematic diagram of the defoaming device;

[0024] Figure 4 is a three-dimensional structure schematic diagram of the tape stabilizing device Figure 1 ;

[0025] Figure 5 is a three-dimensional structure schematic diagram of the tape stabilizing device Figure 2 ;

[0026] Figure 6Schematic diagram of the disassembly structure of the plugging device;

[0027] In the figure: edge banding machine main body - 1, defoaming unit - 2, cavity - 201, cylinder - 202, clamping plate - 203, motor - 204, connecting rubber membrane - 205, air extraction pipe - 206, swing arm - 207, roller - 208, limiting rod - 209, anti - detachment plate - 2010, return spring - 2011, electric heating rod - 2012, plugging unit - 3, plugging rubber membrane - 301, fixing plate - 302, movable plate - 303, rubber support block - 304, groove - 305, stabilizing belt unit - 4, connecting plate - 401, connecting rod - 402, roller - 403, convex edge - 404, connecting spring - 405 Specific implementation mode

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment 1

[0030] Please refer to the figure. The present invention provides an adaptive straight - edge banding system for plates, including an edge banding machine main body 1. A conveying unit, a pre - milling unit, a glue - applying and tape - feeding unit, and a defoaming unit 2 are arranged on the edge banding machine main body 1. The conveying unit is used to convey plates on the edge banding machine main body 1, the pre - milling unit is used to mill the edges of the plates flat, and the glue - applying and tape - feeding unit is used to apply glue to the edges of the plates and convey the edge banding tape.

[0031] The defoaming unit 2 is used to prevent the edge banding tape from falling off. The defoaming unit 2 includes a cavity 201, a cylinder 202, a clamping plate 203, a motor 204, and a connecting rubber membrane 205.

[0032] The longitudinal section of the cavity 201 is in a [shape for matching with the edge of the plate. The cylinder 202 is installed on the edge banding machine main body 1 and can drive the cavity 201 to move. An air extraction pipe 206 connected to a vacuum device is provided on the cavity 201.

[0033] The clamping plates 203 are respectively arranged on the upper and lower sides of the cavity 201. The clamping plates 203 are used to clamp the plates, and the clamping plates 203 and the cavity 201 form a vertical moving pair. Limiting rods 209 are formed on the clamping plates 203. The limiting rods 209 vertically penetrate the cavity 201 and form a vertical moving pair with the cavity 201. An anti - detachment plate 2010 is arranged at the end of the limiting rod 209, and a return spring 2011 is arranged between the anti - detachment plate 2010 and the cavity 201.

[0034] The motor 204 is arranged at the rear side of the cavity 201. The rotating shaft of the motor 204 is connected to the middle part of the swing arm 207 located inside the cavity 201. Both ends of the swing arm 207 are provided with rollers 208, and the rollers 208 abut against the clamping plates 203 located on different sides of the cavity 201.

[0035] The connecting rubber membrane 205 is connected to the rear sides of the clamping plates 203 located on different sides of the cavity 201. One end of the air extraction pipe 206 is communicated with the connecting rubber membrane 205.

[0036] Embodiment 2

[0037] Please refer to the figure. The present invention provides an adaptive straight edge banding system for plates, including an edge banding machine main body 1. A conveying unit, a pre-milling unit, a glue coating and tape feeding unit, a defoaming unit 2 and a plugging unit 3 are arranged on the edge banding machine main body 1. The conveying unit is used for conveying plates on the edge banding machine main body 1. The pre-milling unit is used for milling the edges of the plates flat. The glue coating and tape feeding unit is used for coating glue on the edges of the plates and conveying the edge banding tape.

[0038] The defoaming unit 2 is used to prevent the edge banding tape from falling off. The defoaming unit 2 includes a cavity 201, a cylinder 202, clamping plates 203, a motor 204 and a connecting rubber membrane 205.

[0039] The longitudinal section of the cavity 201 is in a [shape for matching with the edge of the plate. The cylinder 202 is installed on the edge banding machine main body 1 and can drive the cavity 201 to move. An air extraction pipe 206 connected to a vacuum device is arranged on the cavity 201.

[0040] The clamping plates 203 are respectively arranged on the upper and lower sides of the cavity 201. The clamping plates 203 are used for clamping the plates, and the clamping plates 203 and the cavity 201 form a moving pair in the vertical direction. A limiting rod 209 is formed on the clamping plates 203. The limiting rod 209 vertically penetrates the cavity 201 and forms a moving pair in the vertical direction with the cavity 201. An anti-detachment plate 2010 is arranged at the end of the limiting rod 209, and a return spring 2011 is arranged between the anti-detachment plate 2010 and the cavity 201.

[0041] The motor 204 is arranged at the rear side of the cavity 201. The rotating shaft of the motor 204 is connected to the middle part of the swing arm 207 located inside the cavity 201. Both ends of the swing arm 207 are provided with rollers 208, and the rollers 208 abut against the clamping plates 203 located on different sides of the cavity 201.

[0042] The connecting rubber membrane 205 is connected to the rear sides of the clamping plates 203 located on different sides of the cavity 201. One end of the air extraction pipe 206 is communicated with the connecting rubber membrane 205. It further includes a plugging unit 3. The plugging unit 3 is located on the left and right sides of the cavity 201. The plugging unit 3 includes a plugging rubber membrane 301, a fixing plate 302, a movable plate 303 and a rubber support block 304.

[0043] The plugging rubber film 301 is located on the left and right sides of the clamping plate 203, and the plugging rubber film 301 is connected to the clamping plates 203 on different sides of the cavity 201.

[0044] One end of the fixing plate 302 is hinged to a clamping plate 203. The fixing plate 302 is located behind the plugging rubber film 301, and a groove 305 for accommodating the movable plate 303 is formed on the fixing plate 302.

[0045] The movable plate 303 is located in the groove 305 and is movable, forming a moving pair with the groove 305.

[0046] The rubber support block 304 is located behind the fixing plate 302 and is connected to any one of the clamping plates 203.

[0047] Embodiment 3

[0048] Please refer to the figure. The present invention provides an adaptive straight edge banding system for plates, including a banding machine main body 1. A conveying unit, a pre-milling unit, a glue coating and tape feeding unit, a defoaming unit 2, a plugging unit 3, and a tape stabilizing unit 4 are arranged on the banding machine main body 1. The conveying unit is used to convey plates on the banding machine main body 1. The pre-milling unit is used to mill the edges of the plates flat. The glue coating and tape feeding unit is used to apply glue to the edges of the plates and convey the edge banding tape.

[0049] The defoaming unit 2 is used to prevent the edge banding tape from falling off. The defoaming unit 2 includes a cavity 201, a cylinder 202, clamping plates 203, a motor 204, and a connecting rubber film 205.

[0050] The longitudinal section of the cavity 201 is in a [shape for matching with the edges of the plates. The cylinder 202 is installed on the banding machine main body 1 and can drive the cavity 201 to move. An air extraction pipe 206 connected to a vacuum extraction device is arranged on the cavity 201.

[0051] The clamping plates 203 are respectively arranged on the upper and lower sides of the cavity 201. The clamping plates 203 are used to clamp the plates, and the clamping plates 203 form a moving pair with the cavity 201 in the vertical direction. A limiting rod 209 is formed on the clamping plates 203. The limiting rod 209 vertically penetrates the cavity 201 and forms a moving pair with the cavity 201 in the vertical direction. An anti-detachment plate 2010 is arranged at the end of the limiting rod 209, and a return spring 2011 is arranged between the anti-detachment plate 2010 and the cavity 201.

[0052] The motor 204 is arranged at the rear side of the cavity 201. The rotating shaft of the motor 204 is connected to the middle of a swing arm 207 located inside the cavity 201. Rollers 208 are arranged at both ends of the swing arm 207, and the rollers 208 abut against the clamping plates 203 on different sides of the cavity 201.

[0053] The connecting rubber film 205 is connected to the rear sides of the clamping plates 203 on different sides of the cavity 201, and one end of the air extraction pipe 206 communicates with the connecting rubber film 205. Further included is a blocking unit 3, which is located on the left and right sides of the cavity 201. The blocking unit 3 includes a blocking rubber film 301, a fixing plate 302, a movable plate 303, and a rubber support block 304.

[0054] The blocking rubber film 301 is located on the left and right sides of the clamping plates 203, and the blocking rubber film 301 is connected to the clamping plates 203 on different sides of the cavity 201.

[0055] One end of the fixing plate 302 is hinged to a clamping plate 203. The fixing plate 302 is located behind the blocking rubber film 301, and a groove 305 for accommodating the movable plate 303 is formed on the fixing plate 302.

[0056] The movable plate 303 is movable within the groove 305 and forms a moving pair with the groove 305.

[0057] The rubber support block 304 is located behind the fixing plate 302 and is connected to any one of the clamping plates 203.

[0058] The belt stabilizing unit 4 includes a connecting plate 401, a connecting rod 402, and a roller 403.

[0059] The bolt passes through the opening on the connecting plate 401 to fix the connecting plate 401 on the edge banding machine main body 1.

[0060] One end of the connecting rod 402 is connected to the connecting plate 401 to form a rotating pair. The other end of the connecting rod 402 is provided with a roller 403. A convex edge 404 is formed on the outer side of the roller 403, and the cross-section of the convex edge 404 is wedge-shaped. The number of the connecting rods 402 is 2, and the connecting rods 402 are connected by a connecting spring 405.

[0061] Embodiment 4

[0062] Please refer to the figure. The present invention provides an adaptive straight edge banding system for plates, which includes an edge banding machine main body 1. A conveying unit, a pre-milling unit, a glue coating and tape feeding unit, an air bubble removing unit 2, a blocking unit 3, and a belt stabilizing unit 4 are arranged on the edge banding machine main body 1. The conveying unit is used for conveying plates on the edge banding machine main body 1. The pre-milling unit is used for milling the edges of the plates flat. The glue coating and tape feeding unit is used for coating glue on the edges of the plates and conveying the edge banding tape.

[0063] The air bubble removing unit 2 is used to prevent the edge banding tape from falling off. The air bubble removing unit 2 includes a cavity 201, a cylinder 202, clamping plates 203, a motor 204, and a connecting rubber film 205.

[0064] The longitudinal section of the cavity 201 is in a [shape] for cooperating with the edge of the plate. The air cylinder 202 is installed on the main body 1 of the edge banding machine and can drive the cavity 201 to move. An air extraction pipe 206 connected to a vacuum extraction device is provided on the cavity 201.

[0065] The clamping plates 203 are respectively arranged on the upper and lower sides of the cavity 201. The clamping plates 203 are used to clamp the plate, and the clamping plates 203 and the cavity 201 form a moving pair in the vertical direction. The surface of the clamping plates 203 is sprayed with a polytetrafluoroethylene coating. An electric heating rod 2012 is arranged outside the clamping plates 203. A limiting rod 209 is formed on the clamping plates 203. The limiting rod 209 vertically penetrates the cavity 201 and forms a moving pair with the cavity 201 in the vertical direction. An anti - detachment plate 2010 is arranged at the end of the limiting rod 209, and a return spring 2011 is arranged between the anti - detachment plate 2010 and the cavity 201.

[0066] The motor 204 is arranged at the rear side of the cavity 201. The rotating shaft of the motor 204 is connected to the middle part of a swing arm 207 located inside the cavity 201. Both ends of the swing arm 207 are provided with rollers 208, and the rollers 208 abut against the clamping plates 203 on different sides of the cavity 201.

[0067] The connecting rubber membrane 205 connects the rear sides of the clamping plates 203 on different sides of the cavity 201. One end of the air extraction pipe 206 is communicated with the connecting rubber membrane 205. Further included is a blocking unit 3. The blocking unit 3 is located on the left and right sides of the cavity 201. The blocking unit 3 includes a blocking rubber membrane 301, a fixing plate 302, a movable plate 303 and a rubber support block 304.

[0068] The blocking rubber membrane 301 is located on the left and right sides of the clamping plates 203, and the blocking rubber membrane 301 connects the clamping plates 203 on different sides of the cavity 201.

[0069] One end of the fixing plate 302 is hinged to a clamping plate 203. The fixing plate 302 is located behind the blocking rubber membrane 301. A groove 305 for accommodating the movable plate 303 is formed on the fixing plate 302.

[0070] The movable plate 303 is movable within the groove 305 and forms a moving pair with the groove 305.

[0071] The rubber support block 304 is located behind the fixing plate 302 and is connected to any one of the clamping plates 203.

[0072] The stabilizing belt unit 4 includes a connecting plate 401, a connecting rod 402 and a roller 403.

[0073] The bolt passes through the opening on the connecting plate 401 to fix the connecting plate 401 on the main body 1 of the edge banding machine.

[0074] One end of the connecting rod 402 is connected to the connecting plate 401 to form a rotating pair. The other end of the connecting rod 402 is provided with a roller 403. A convex edge 404 is formed on the outer side of the roller 403. The cross-section of the convex edge 404 is wedge-shaped. There are two connecting rods 402 and the connecting rods 402 are connected by connecting springs 405.

[0075] Working principle: For embodiments 1-4, when the edge banding machine body 1 performs the edge banding operation, the cylinder 202 can push the cavity 201 so that the cavity 201 surrounds the edge of the plate, and then the external vacuum equipment draws air to form a negative pressure at the exhaust pipe 206. At this time, under the action of negative pressure, the bubbles of the hot melt adhesive bonding the plate and the edge band will be discharged, and the hot melt adhesive can invade the gap between the plate material to form an embedded cross-section, which helps to ensure the bonding strength between the edge band and the plate, avoid peeling and separation of the edge band, and help improve the utilization efficiency of the hot melt adhesive.

[0076] In Examples 1-4, when negative pressure is formed at the exhaust pipe 206, the motor 204 can drive the swing arm 207 to rotate. At this time, the roller 208 on the swing arm 207 will squeeze the clamping plate 203 so that the clamping plate 203 is close to the surface of the plate, which helps to ensure the closedness of the space between the cavity 201 and the plate, and ensure the defoaming effect of the hot melt adhesive. At the same time, the distance between the clamping plates 203 can be controlled by controlling the rotation degree of the swing arm 207 driven by the motor 204. The greater the rotation angle of the swing arm 207, the larger the spacing between the clamping plates 203, and the smaller the rotation angle of the swing arm 207, the smaller the spacing between the clamping plates 203, and it can adapt to plates of different thicknesses.

[0077] For embodiments 2-4, when the cylinder 202 pushes the cavity 201 to cooperate with the plate, the sealing rubber membrane 301 on the sealing unit 3 will be tightly attached to the edge of the plate under the action of the fixed plate 302 and the rubber support block 304, which helps to improve the air sealing between the cavity 201 and the plate, and ensure the defoaming effect of negative pressure on the hot melt adhesive. For plates of different thicknesses, the thickness of the clamping plate 203 is inconsistent. At this time, the movable plate 303 can move along the groove 305 to ensure that the support surface received by the sealing rubber membrane 301 can match the thickness of the plate, which can be suitable for plates of different thicknesses.

[0078] For Example 4, the electric heating rod 2012 can heat the clamping plate 203 to make the clamping plate 203 have a certain temperature. The purpose of setting it is to use the clamping plate 203 to heat the hot melt adhesive between the plate and the edge band to prevent the hot melt adhesive from cooling and hardening after being cooled, affecting the defoaming effect.

[0079] For Example 3 and Example 4, a roller 403 is used to press against the edge banding during the defoaming process, and the convex edge 404 on the roller 403 can limit the displacement of the edge banding, so as to prevent the edge banding from moving when the hot melt adhesive has not solidified, resulting in a larger amount of cutting in subsequent trimming and scraping.

[0080] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adaptive straight edge banding system for plates, characterized in that: It includes a main body of an edge banding machine (1), and a conveying unit, a pre-milling unit and a glue coating and tape feeding unit are arranged on the main body of the edge banding machine (1). The conveying unit is used for conveying plates on the main body of the edge banding machine (1), the pre-milling unit is used for milling the edges of the plates flat, and the glue coating and tape feeding unit is used for applying glue to the edges of the plates and conveying the edge band; It further includes a defoaming unit (2), and the defoaming unit (2) is used to prevent the edge band from falling off. The defoaming unit (2) includes a cavity (201), a cylinder (202), a clamping plate (203), a motor (204) and a connecting rubber film (205); The longitudinal section of the cavity (201) is in a shape of ] for matching with the edge of the plate. The cylinder (202) is installed on the main body of the edge banding machine (1) and can drive the cavity (201) to move. An air extraction pipe (206) connected to a vacuum extraction device is arranged on the cavity (201); The clamping plates (203) are respectively arranged on the upper and lower sides of the cavity (201). The clamping plates (203) are used for clamping the plates and the clamping plates (203) and the cavity (201) form a moving pair in the vertical direction; The motor (204) is arranged at the rear side of the cavity (201). The rotating shaft of the motor (204) is connected to the middle of a swing arm (207) located inside the cavity (201). Both ends of the swing arm (207) are provided with rollers (208) and the rollers (208) abut against the clamping plates (203) on different sides of the cavity (201); The connecting rubber film (205) connects the rear sides of the clamping plates (203) on different sides of the cavity (201), and one end of the air extraction pipe (206) is communicated with the connecting rubber film (205).

2. The self - adaptive straight edge - banding system for sheet materials according to claim 1, wherein: It further includes a blocking unit (3). The blocking unit (3) is located on the left and right sides of the cavity (201). The blocking unit (3) includes a blocking rubber film (301), a fixing plate (302), a movable plate (303) and a rubber support block (304); The blocking rubber film (301) is located on the left and right sides of the clamping plate (203) and the blocking rubber film (301) connects the clamping plates (203) on different sides of the cavity (201); One end of the fixing plate (302) is hinged to a clamping plate (203). The fixing plate (302) is located behind the blocking rubber film (301). A groove (305) for accommodating the movable plate (303) is formed on the fixing plate (302); The movable plate (303) is movable in the groove (305) and forms a moving pair with the groove (305); The rubber support block (304) is located behind the fixing plate (302) and is connected to any one of the clamping plates (203).

3. An adaptive straight edge banding system for plates according to claim 1, characterized in that: It further includes a tape stabilizing unit (4). The tape stabilizing unit (4) includes a connecting plate (401), a connecting rod (402) and a roller (403); The bolt passes through the opening on the connecting plate (401) to fix the connecting plate (401) on the main body of the edge banding machine (1); One end of the connecting rod (402) is connected to the connecting plate (401) to form a rotating pair, and the other end of the connecting rod (402) is provided with a roller (403).

4. An adaptive straight edge banding system for plates according to claim 3, wherein: A convex edge (404) is formed on the outer side of the roller (403). The cross-section of the convex edge (404) is wedge-shaped. The number of connecting rods (402) is 2, and the connecting rods (402) are connected by a connecting spring (405).

5. An adaptive straight edge banding system for plates according to any one of claims 1-4, characterized in that: A limiting rod (209) is formed on the clamping plate (203). The limiting rod (209) vertically penetrates the cavity (201) to form a moving pair in the vertical direction with the cavity (201). An anti-disengagement plate (2010) is arranged at the end of the limiting rod (209), and a return spring (2011) is arranged between the anti-disengagement plate (2010) and the cavity (201).

6. An adaptive straight edge banding system for plates according to any one of claims 1-4, characterized in that: The surface of the clamping plate (203) is sprayed with a polytetrafluoroethylene coating, and an electric heating rod (2012) is arranged outside the clamping plate (203).

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