Automatic plate edge sealing device and edge sealing method

Abstract

The present invention relates to the technical field of sheet edge banding, and specifically to an automatic sheet edge banding device and an edge banding method, which aims to solve the space limitation, inconvenience in operation and edge banding quality defects of traditional multi-sided edge banding devices. The device includes an expandable and flexibly arranged edge banding module mounted on a circular track, which supports inner and outer double drive ring chains and is equipped with a gear system of an intermittent drive mechanism, so that the synchronous speed is maintained when the sheet moves on the straight edge, and the differential speed is automatically adjusted to form a packaged continuous edge banding when the corner is converted, thereby improving the efficiency and quality of the edge banding operation, and improving the adaptability of the device to different sheet sizes and shapes. There is no need to rotate the sheet, which greatly saves space and improves production flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field of plate edge sealing, and in particular to an automatic plate edge sealing device and an edge sealing method. Background Art

[0002] The information disclosed in the background of the invention is only intended to enhance the understanding of the overall background of the invention and should not be necessarily regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] As a key equipment to improve production efficiency and ensure edge banding quality, the automatic edge banding device for panels plays a vital role in modern industrial production. However, the automatic edge banding devices currently on the market still face many technical challenges when handling multi-edge edge banding tasks.

[0004] Traditional multi-sided edge banding devices mostly rely on a rotating worktable to change the position of the plate so as to perform edge banding on different edges. This design is particularly inconvenient when facing long or large plates. Since the size of the long plate is much larger than its width, the rotation operation not only requires a larger working space, but may also cause operational difficulties, affecting operating efficiency and the flexibility of workshop layout.

[0005] At the same time, existing multi-edge edge banding technologies often attempt to increase production speed by banding a set of opposite edges at the same time. However, this method is prone to discontinuous seams at the intersection of two sections of edge banding, causing the edge banding strips to split at these locations, seriously affecting the aesthetics and durability of the final product. Splitting not only reduces the sealing performance of the edge banding, but may also become an entry point for moisture and stains to penetrate, shortening the service life of the board.

[0006] In view of the above problems, the market urgently needs a new type of automatic edge banding device for panels and its edge banding method. The device should be able to efficiently and accurately complete multi-sided edge banding operations without relying on the rotation of the panels, while ensuring seamless connections at the edge banding joints, fundamentally solving the space occupancy, operating difficulty and edge banding quality defects existing in the prior art. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automatic edge banding device for plates, aiming to solve the space limitation, inconvenient operation and edge banding quality defects of traditional multi-sided edge banding devices.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] An automatic plate edge banding device, comprising a feeding conveying device, an edge banding operation device and a unloading conveying device, wherein the edge banding operation device comprises an edge banding module, and the edge banding module comprises a cutting device, an edge banding main body device, a cutting device and a polishing device;

[0010] The edge banding device also includes a frame, the frame includes a top plate and a bottom plate, a positioning and conveying module is arranged between the top plate and the bottom plate, the positioning and conveying module includes an upper positioning and conveying device and a lower positioning and conveying device respectively installed on the top plate and the bottom plate, the positioning and conveying module includes a conveyor belt group, and a plurality of flexible anti-skid positioning blocks are evenly distributed on the conveyor belt of the conveyor belt group;

[0011] An annular workbench is arranged outside the positioning and conveying module, an annular track is arranged on the annular workbench, and the edge sealing module is movably mounted on the annular track in cooperation with the driving device;

[0012] The driving device comprises an inner driving chain and an outer driving chain, the edge sealing module is installed on the inner driving chain and the outer driving chain, and the outer sides of the inner driving chain and the outer driving chain are respectively provided with an adapted inner support guide ring plate and an outer support guide ring plate, the annular track comprises an inner rail and an outer rail, and the driving chain where the edge sealing module is installed is provided with a first slider and a second slider corresponding to the inner rail and the outer rail;

[0013] The inner drive chain and the outer drive chain are respectively provided with corresponding inner drive gears and outer drive gears at corresponding corners of the plate;

[0014] The inner driving gear comprises a gear body, the gear body is provided with a notch, an axial movable tooth portion and an intermittent movable tooth portion are fitted in the notch, the axial movable tooth portion is hingedly mounted in the notch, the intermittent movable tooth portion is rotatable around the central axis of the gear body, the intermittent movable tooth portion is connected to a first spring at a side away from the axial movable tooth portion, and the other end of the first spring is fixed to the gear body;

[0015] The lower side of the axially movable tooth portion is slidably mounted on the sliding sleeve around the central axis of the gear body, and the sliding sleeve can be slidably mounted on the supporting cylinder seat up and down. The top of the sliding sleeve is provided with an annular end face that cooperates with the sliding of the axially movable tooth portion, and a second spring is provided below the annular end face; the bottom of the sliding sleeve is provided with a driving plate, and the driving plate is provided with a driving protrusion that cooperates with the first slider through sliding drive, and the bottom side of the inner rail is provided with a matching hole that adapts to the driving protrusion;

[0016] The support cylinder seat passes through the annular track downward and is fixedly installed. The central drive shaft of the internal drive gear is installed in the support cylinder seat through a bearing. The lower end of the central drive shaft is connected to the drive device in a transmission manner.

[0017] The first slider drives the driving plate through the driving protrusion to overcome the force of the second spring and drive the sliding sleeve to slide downward. The sliding sleeve drives the axial movable tooth portion downward through the driving slider, so that the limiting of the intermittent movable tooth portion fails, triggering the intermittent motion mechanism, so that the inner driving gear and the outer driving gear drive the inner driving chain and the outer driving chain at the same speed when the plate is straight, and form a differential speed at the corner, thereby realizing the packaging-type continuous edge sealing of the plate.

[0018] Preferably, the upper side of the intermittently movable tooth portion is installed on the central driving shaft through a collar portion, and the lower side is connected to the gear body in a limited sliding manner. The gear body is provided with an arc-shaped groove, and the intermittently movable tooth portion is provided with an arc-shaped slider adapted to the arc-shaped groove.

[0019] Preferably, the driving protrusion is an arc-shaped protrusion that coincides with the central axis of the central driving shaft, and the driving protrusion includes a first inclined surface and a flat surface, and the first inclined surface is arranged close to the entry end of the first sliding block.

[0020] Preferably, the sliding sleeve and the supporting cylinder seat are respectively provided with matching guide grooves and guide slide blocks.

[0021] Preferably, a driving slider is provided on the lower side of the axially movable tooth portion, and a driving groove adapted to the driving slider is formed on the annular end surface.

[0022] Preferably, a limiting protrusion cooperating with the intermittently movable tooth portion is arranged near the edge of one end face of the axially movable tooth portion, and a second inclined portion is arranged near the side of the limiting protrusion close to the axis of the gear body.

[0023] Preferably, the annular track is provided with a matching cavity for accommodating the up and down movement of the driving plate.

[0024] Preferably, the driving device is an annular linear motor, and the cutting device, edge sealing main body device, cutting device and polishing device are all installed on the slide corresponding to the annular linear motor through corresponding mounting seats. The mounting seats of the cutting device, edge sealing main body device, cutting device and polishing device are hingedly connected on the inner side and connected on the outer side through a third spring to balance the driving force of the entire edge sealing module at the corner.

[0025] Preferably, each of the conveyor belt groups includes two synchronously moving conveyor belts for positioning and conveying the two side edges of the plate respectively. The conveyor belts are provided with support plates to keep them straight, and a supplementary positioning device may also be provided between the two conveyor belts.

[0026] In order to better realize the present invention, the present invention further proposes an edge sealing method of the automatic edge sealing device for plates as described above:

[0027] A positioning and conveying module is provided to realize the positioning and conveying of the plate, and an edge sealing module is fixedly installed on a conveying device including an inner drive chain and an outer drive chain. The inner drive chain and the outer drive chain respectively move in a circular motion along the inner rail and the outer rail of the circular track around the edge of the plate, and the inner drive chain and the outer drive chain are respectively driven by the corresponding inner drive gear and the outer drive gear at the corners of the plate. The inner drive gear is set as a triggerable intermittent drive mechanism, so that the inner drive gear and the outer drive gear drive the inner drive chain and the outer drive chain at the same speed when the plate has a straight edge, and a differential drive is formed at the corner in which the inner rail driving speed is less than the outer rail driving speed, thereby realizing packaging edge sealing for continuous edge sealing of the straight edges and corners of the plate.

[0028] The present invention includes but is not limited to the following beneficial effects:

[0029] The present invention realizes the packaging type continuous edge banding of the plate, and through the innovation of the traditional edge banding technology, it not only overcomes the space limitation, the inconvenience of operation and the edge banding quality defects, but also significantly improves the efficiency and quality of the edge banding operation.

[0030] The present invention realizes synchronous high-speed linear edge banding of the straight edge of the plate and flexible differential adjustment at the corners through the intermittent drive mechanism of the circular track and the internal driving gear, thereby ensuring the continuity of the edge banding operation and the seamless connection of the edge banding strips. Even complex plate shapes (including long strips of plate) can achieve perfect packaging-style edge banding, which greatly improves the overall aesthetics and structural integrity of the product.

[0031] The present invention abandons the rotating platform and adopts a method in which the plate only needs to move linearly along the conveying module and the edge banding module performs circular edge banding along the circular workbench, so that the multi-sided edge banding operation of the plate does not need to be rotated, which greatly saves space and improves production flexibility. It is particularly suitable for the needs of large-scale customized production, and can complete a variety of edge banding tasks in a limited workshop space, thereby improving the adaptability and production efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2is a schematic diagram of the overall external structure of the driving device;

[0034] Figure 3 It is a plan view of the driving structure of the inner driving chain;

[0035] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0036] Figure 5 is a schematic diagram of the three-dimensional structure of the inner driving gear;

[0037] Figure 6 It is a schematic diagram of the back structure of the inner driving gear;

[0038] Figure 7 Schematic diagram of the three-dimensional structure of the sliding sleeve;

[0039] Figure 8 Another schematic diagram of the structure of the driving device.

[0040] The reference numerals involved in the accompanying drawings are: 100, feeding conveying device; 200, edge banding operation device; 300, unloading conveying device; 1, top plate; 2, bottom plate; 3, conveyor belt; 31, flexible anti-skid positioning block; 4, annular track; 41, inner support guide ring plate; 411, inner drive ring chain; 412, first slider; 42, outer support guide ring plate; 421, outer drive ring chain; 5, edge banding module; 51, cutting device; 52, edge banding main body device 53, cutting device; 54, polishing device; 55, third spring; 6, inner drive gear; 61, gear body; 611, Central driving shaft; 62, axially movable tooth portion; 621, limiting protrusion; 6211, second inclined portion; 622, driving slider; 63, intermittently movable tooth portion; 631, collar; 632, arc-shaped slider; 64, first spring; 65, sliding sleeve; 651, guide groove; 652, driving plate; 653, driving protrusion; 6531, first inclined portion; 6532, plane portion; 654, annular end face; 6541, driving slide groove; 655, second spring; 656, matching cavity; 66, supporting cylinder seat; 67, central driving shaft; 68, driving device; 7, external driving gear. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0042] Figures 1 to 8 An automatic plate edge banding device is shown, comprising a loading and conveying device 100, an edge banding operation device 200 and a unloading and conveying device 300, wherein the edge banding operation device 200 comprises an edge banding module 5, and the edge banding module 5 comprises a cutting device 51, an edge banding main body device, a cutting device and a polishing device 54;

[0043] The edge banding device 200 also includes a frame, the frame includes a top plate 1 and a bottom plate 2, a positioning and conveying module is arranged between the top plate 1 and the bottom plate 2, the positioning and conveying module includes an upper positioning and conveying device and a lower positioning and conveying device respectively installed on the top plate 1 and the bottom plate 2, the positioning and conveying module includes 3 groups of conveyor belts, and a plurality of flexible anti-skid positioning blocks 31 are evenly distributed on the conveyor belts 3 of the 3 groups of conveyor belts, and the material of the flexible anti-skid positioning blocks 31 may include polymer materials such as rubber and plastic;

[0044] An annular workbench is arranged outside the positioning and conveying module, an annular track 4 is arranged on the annular workbench, and the edge sealing module 5 is movably mounted on the annular track 4 in cooperation with the driving device 68;

[0045] The driving device 68 includes an inner driving chain 411 and an outer driving chain 421, and the edge banding module 5 is installed on the inner driving chain 411 and the outer driving chain 421. The outer sides of the inner driving chain 411 and the outer driving chain 421 are respectively provided with an adapted inner support guide ring plate 41 and an outer support guide ring plate 42 to provide stable support and guidance for the corresponding driving chain, thereby ensuring the precise and stable operation of the edge banding module 5, so as to better realize the edge banding operation. The annular track 4 includes an inner rail and an outer rail, and the driving chain at which the edge banding module 5 is installed is provided with a first slider 412 and a second slider corresponding to the inner rail and the outer rail;

[0046] The inner drive chain 411 and the outer drive chain 421 are respectively provided with corresponding inner drive gears 6 and outer drive gears 7 at the corresponding corners of the plate;

[0047] The inner driving gear 6 comprises a gear body 61, the gear body 61 is provided with a notch, an axial movable tooth portion 62 and an intermittent movable tooth portion 63 are fitted in the notch, the axial movable tooth portion 62 is hingedly mounted in the notch, the intermittent movable tooth portion 63 is rotatable around the central axis of the gear body 61, the intermittent movable tooth portion 63 is connected to a first spring 64 at a side away from the axial movable tooth portion 62, and the other end of the first spring 64 is fixed to the gear body 61;

[0048] The lower side of the axially movable tooth portion 62 is slidably mounted on the sliding sleeve 65 around the central axis of the gear body 61. The sliding sleeve 65 can be slidably mounted on the supporting cylinder seat 66. The top of the sliding sleeve 65 is provided with an annular end face 654 that cooperates with the sliding of the axially movable tooth portion 62. A second spring 655 is provided below the annular end face 654. The bottom of the sliding sleeve 65 is provided with a driving plate 652. The driving plate 652 is provided with a driving protrusion 653 that cooperates with the first slider 412 through sliding drive. The bottom side of the inner rail is provided with a matching hole that is adapted to the driving protrusion 653. The annular track 4 is provided with a matching cavity 656 that is adapted to the up and down movement of the driving plate 652.

[0049] The support cylinder seat 66 passes through the annular track 4 downward and is fixedly installed. The central drive shaft 67 of the inner drive gear 6 is installed in the support cylinder seat 66 through a bearing. The lower end of the central drive shaft 67 is connected to a drive device 68 in a transmission manner. The inner drive gear 6 and the outer drive gear 7 can be provided with their own drive devices 68, or can be driven by the same drive device 68. It is only necessary to make corresponding transmission connections between the output end of the drive device 68 and the input end of the inner drive gear 6 and the outer drive gear 7. It should be noted here that the inner drive gear 6 and the outer drive gear 7 in the present invention maintain the same speed when performing straight edge sealing of the plate, which means that the inner drive gear 6 and the outer drive gear 7 maintain the same linear speed, but it does not mean that the rotation speed is the same. Therefore, if driven by the same drive device 68, it is necessary to pay attention to this point. How to set the transmission connection and transmission ratio is not the design point of the present invention, but belongs to the prior art. The existing technicians should understand and can implement it smoothly, and no further elaboration will be given here.

[0050] The first slider 412 moves in the inner rail to the driving protrusion 653. Under the action of the driving protrusion 653, the driving plate 652 overcomes the action force of the second spring 655 and drives the sliding sleeve 65 to slide downward. The sliding sleeve 65 drives the axial movable tooth portion 62 to move downward through the driving slider 622, so that the limiting of the intermittent movable tooth portion 63 fails, triggering the intermittent motion mechanism, so that the inner driving gear 6 and the outer driving gear 7 drive the inner driving chain 411 and the outer driving chain 421 at the same speed when the plate is straight, and form a differential speed at the corner, thereby realizing the packaging-type continuous edge sealing of the plate.

[0051] The upper side of the intermittently movable tooth portion 63 is mounted on the central drive shaft 67 through a collar 631 so that it can rotate around the central drive shaft 67. The lower side is limitedly slidably connected to the gear body 61 to provide guidance to ensure that the intermittently movable tooth portion 63 can better rotate around the central drive shaft 67 in the plane where it is located. Figure 6As shown, the gear body 61 is provided with an arc-shaped sliding groove, and the intermittently movable tooth portion 63 is provided with an arc-shaped sliding block 632 adapted to the arc-shaped sliding groove.

[0052] The driving protrusion 653 is an arc-shaped protrusion that coincides with the central axis of the central driving shaft 67. Figure 7 As shown, the driving protrusion 653 includes a first inclined surface 6531 and a flat surface 6532. The first inclined surface is arranged close to the entry end of the first slider 412 to facilitate the smooth entry of the first slider 412, so that the driving protrusion 653 is compressed and drives the sliding sleeve 65 to move downward while sliding.

[0053] The sliding sleeve 65 and the supporting cylinder seat 66 are respectively provided with an adaptive guide groove 651 and a guide slider to limit the rotation of the sliding sleeve 65 itself and at the same time, guide the up and down movement of the sliding sleeve 65, thereby ensuring the smooth triggering of the intermittent mechanism.

[0054] A driving slider 622 is provided at the lower side of the axially movable tooth portion 62, and a driving slide groove 6541 adapted to the driving slider 622 is provided on the annular end surface 654, so as to enable the axially movable tooth portion 62 to rotate around the central axis of the central driving shaft 67 while enabling the sliding sleeve 65 to pull the axially movable tooth portion 62 downward, thereby triggering the intermittent mechanism, that is, when the inner driving gear 6 rotates to the turn of the intermittently movable tooth portion 63 to drive, the axially movable tooth portion 62 moves (rotates) downward, so that the limiting of the intermittently movable tooth portion 63 fails, thereby triggering the intermittent mechanism, that is, the intermittently movable tooth portion 63 cannot rigidly drive the inner driving chain 411, so that the inner driving chain 411 and the outer driving chain 4 21 forms a differential motion at the corner, thereby realizing turning at the corner; the inner driving gear 6 does not resume rigid drive until it rotates to pass over the intermittently movable tooth portion 63. At the same time, under the action of the first spring 64, the intermittently movable gear portion is reset. When the first sliders 412 of the edge sealing module 5 pass through the driving protrusions 653, that is, they pass over the corner and reach the straight edge of the plate, the axially movable tooth portion 62 is reset under the action of the second spring 655, so that the axially movable tooth portion 62 again serves to limit the intermittently movable tooth portion 63. At this time, when the straight edge of the plate is sealed, the speeds of the inner driving chain 411 and the outer driving chain 421 remain consistent, so that the edge sealing module 5 maintains a straight line operation.

[0055] Of course, the driving slider 622 and the driving slot 6541 may also be pulleys and guide rails that can achieve similar functions, which are easy to implement and will not be elaborated on here.

[0056] A limiting protrusion 621 cooperating with the intermittently movable tooth portion 63 is arranged on one side end face of the axially movable tooth portion 62 near the edge. This arrangement is intended to better trigger the intermittent mechanism. When the axially movable tooth portion 62 rotates downward by the same angle, the limiting protrusion 621 used for limiting is arranged near the edge, which makes it easier to lose the limit, thereby ensuring the smooth triggering of the intermittent mechanism.

[0057] The limiting protrusion 621 is provided with a second inclined surface portion 6211 on one side close to the axis of the gear body 61 , and such a configuration further ensures the smooth triggering of the intermittent mechanism.

[0058] The driving device 68 is a ring-shaped linear motor, such as Figure 8 As shown, the cutting device 51, the edge sealing main body device, the cutting device and the polishing device 54 are all installed on the slide corresponding to the annular linear motor through corresponding mounting seats, and the mounting seats of the cutting device 51, the edge sealing main body device, the cutting device and the polishing device 54 are hingedly connected on the inner side and connected on the outer side through a third spring 55 to balance the driving force of the edge sealing module 5 as a whole at the corner.

[0059] Each of the conveyor belt 3 groups includes two synchronously moving conveyor belts 3 for positioning and conveying the two side edges of the plate respectively. The conveyor belts 3 are provided with support plates to keep them straight. In order to ensure the stable positioning of the plate and thus achieve smooth edge sealing of the plate, a supplementary positioning device (not shown in the figure) can be further provided between the two conveyor belts 3. Specifically, the supplementary positioning device can be a telescopic device or a negative pressure adsorption device, and any device that can realize automatic auxiliary positioning and conveying device to stably position the plate can be used. This is not a design point of the present invention and will not be elaborated here.

[0060] In order to better implement the present invention, in this embodiment, an edge sealing method of the automatic edge sealing device for plates as described above is also proposed:

[0061] A positioning and conveying module is provided to realize the positioning and conveying of the plate, and an edge sealing module 5 is fixedly installed on a conveying device including an inner drive chain 411 and an outer drive chain 421. The inner drive chain 411 and the outer drive chain 421 respectively move in a circular motion along the inner rail and the outer rail of the circular track 4 around the edge of the plate, and the inner drive chain 411 and the outer drive chain 421 are respectively driven by the corresponding inner drive gear 6 and the outer drive gear 7 at the corners of the plate. The inner drive gear 6 is set as a triggerable intermittent drive mechanism, so that the inner drive gear 6 and the outer drive gear 7 drive the inner drive chain 411 and the outer drive chain 421 at the same speed when the plate has a straight edge, and a differential drive is formed at the corner in which the inner rail driving speed is less than the outer rail driving speed, thereby realizing packaging edge sealing for continuous edge sealing of the straight edges and corners of the plate.

[0062] In summary, the present invention includes an expandable and flexibly arranged edge banding module 5 mounted on a circular track 4, which supports inner and outer dual drive chains and is equipped with a gear system with an intermittent drive mechanism, so that the synchronous speed is maintained when the plate moves on the straight edge, and the differential speed is automatically adjusted when the corner is converted, so as to realize the packaging type continuous edge banding, improve the efficiency and quality of the edge banding operation, improve the adaptability of the device to different plate sizes and shapes, and do not need to rotate the plate, which greatly saves space and improves production flexibility. Not only has the packaging type continuous edge banding of the plate been successfully realized, but it has also shown significant advantages in improving production efficiency, ensuring edge banding quality, optimizing space utilization, enhancing equipment flexibility and intelligence, etc., and provides a good solution to meet the market demand for efficient and high-quality edge banding equipment.

[0063] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0064] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0065] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic plate edge banding device, comprising a feeding conveying device, an edge banding operation device and a unloading conveying device, wherein the edge banding operation device comprises an edge banding module, and the edge banding module comprises a cutting device, an edge banding main body device, a cutting device and a polishing device; characterized in that: The edge banding device also includes a frame, the frame includes a top plate and a bottom plate, a positioning and conveying module is arranged between the top plate and the bottom plate, the positioning and conveying module includes an upper positioning and conveying device and a lower positioning and conveying device respectively installed on the top plate and the bottom plate, the positioning and conveying module includes a conveyor belt group, and a plurality of flexible anti-skid positioning blocks are evenly distributed on the conveyor belt of the conveyor belt group; An annular workbench is arranged outside the positioning and conveying module, an annular track is arranged on the annular workbench, and the edge sealing module is movably mounted on the annular track in cooperation with the driving device; The driving device comprises an inner driving chain and an outer driving chain, the edge sealing module is installed on the inner driving chain and the outer driving chain, and the outer sides of the inner driving chain and the outer driving chain are respectively provided with an adapted inner support guide ring plate and an outer support guide ring plate, the annular track comprises an inner rail and an outer rail, and the driving chain where the edge sealing module is installed is provided with a first slider and a second slider corresponding to the inner rail and the outer rail; The inner drive chain and the outer drive chain are respectively provided with corresponding inner drive gears and outer drive gears at corresponding corners of the plate; The inner driving gear comprises a gear body, the gear body is provided with a notch, an axial movable tooth portion and an intermittent movable tooth portion are fitted in the notch, the axial movable tooth portion is hingedly mounted in the notch, the intermittent movable tooth portion is rotatable around the central axis of the gear body, the intermittent movable tooth portion is connected to a first spring at a side away from the axial movable tooth portion, and the other end of the first spring is fixed to the gear body; The lower side of the axially movable tooth portion is slidably mounted on the sliding sleeve around the central axis of the gear body, and the sliding sleeve can be slidably mounted on the supporting cylinder seat up and down. The top of the sliding sleeve is provided with an annular end face that cooperates with the sliding of the axially movable tooth portion, and a second spring is provided below the annular end face; the bottom of the sliding sleeve is provided with a driving plate, and the driving plate is provided with a driving protrusion that cooperates with the first slider through sliding drive, and the bottom side of the inner rail is provided with a matching hole that adapts to the driving protrusion; The support cylinder seat passes through the annular track downward and is fixedly installed. The central drive shaft of the internal drive gear is installed in the support cylinder seat through a bearing. The lower end of the central drive shaft is connected to the drive device in a transmission manner. The first slider drives the driving plate through the driving protrusion to overcome the force of the second spring and drive the sliding sleeve to slide downward. The sliding sleeve drives the axial movable tooth portion downward through the driving slider, so that the limiting of the intermittent movable tooth portion fails, triggering the intermittent motion mechanism, so that the inner driving gear and the outer driving gear drive the inner driving chain and the outer driving chain at the same speed when the plate is straight, and form a differential speed at the corner, thereby realizing the packaging-type continuous edge sealing of the plate.

2. The automatic plate edge sealing device according to claim 1, characterized in that: The upper side of the intermittently movable tooth portion is installed on the central driving shaft through a collar portion, and the lower side is limitedly slidably connected with the gear body. The gear body is provided with an arc-shaped slide groove, and the intermittently movable tooth portion is provided with an arc-shaped slider adapted to the arc-shaped slide groove.

3. The automatic plate edge sealing device according to claim 1, characterized in that: The driving protrusion is an arc-shaped protrusion that coincides with the central axis of the central driving shaft. The driving protrusion includes a first inclined surface and a flat surface. The first inclined surface is arranged close to the entry end of the first sliding block.

4. The automatic plate edge sealing device according to claim 1, characterized in that: The sliding sleeve and the supporting cylinder seat are respectively provided with matching guide grooves and guide sliding blocks.

5. The automatic plate edge sealing device according to claim 1, characterized in that: A driving slider is arranged at the lower side of the axially movable tooth portion, and a driving slot adapted to the driving slider is formed on the annular end surface.

6. The automatic plate edge sealing device according to claim 1, characterized in that: A limiting protrusion cooperating with the intermittently movable tooth portion is arranged near the edge of one end surface of the axially movable tooth portion, and a second inclined portion is arranged near the axis of the gear body on one side of the limiting protrusion.

7. The automatic plate edge sealing device according to claim 1, characterized in that: The annular track is provided with a matching cavity adapted to the up and down movement of the driving plate.

8. The automatic plate edge sealing device according to claim 1, characterized in that: The driving device is an annular linear motor, and the cutting device, edge sealing main body device, cutting device and polishing device are all installed on the slide corresponding to the annular linear motor through corresponding mounting seats. The mounting seats of the cutting device, edge sealing main body device, cutting device and polishing device are hingedly connected on the inner side and connected on the outer side through a third spring to balance the driving force of the entire edge sealing module at the corner.

9. The automatic plate edge sealing device according to claim 1, characterized in that: Each of the conveyor belt groups includes two synchronously moving conveyor belts for positioning and conveying the two side edges of the plate respectively. The conveyor belts are provided with support plates to keep them straight, and a supplementary positioning device can also be provided between the two conveyor belts.

10. An edge sealing method of the automatic edge sealing device for plates as claimed in any one of claims 1 to 9, characterized in that: A positioning and conveying module is provided to realize the positioning and conveying of the plate, and an edge sealing module is fixedly installed on a conveying device including an inner drive chain and an outer drive chain. The inner drive chain and the outer drive chain respectively move in a circular motion along the inner rail and the outer rail of the circular track around the edge of the plate, and the inner drive chain and the outer drive chain are respectively driven by the corresponding inner drive gear and the outer drive gear at the corners of the plate. The inner drive gear is set as a triggerable intermittent drive mechanism, so that the inner drive gear and the outer drive gear drive the inner drive chain and the outer drive chain at the same speed when the plate has a straight edge, and a differential drive is formed at the corner in which the inner rail driving speed is less than the outer rail driving speed, thereby realizing packaging edge sealing for continuous edge sealing of the straight edges and corners of the plate.

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