Edge banding machine

Abstract

The utility model relates to the technical field of edge sealing equipment, in particular to an edge sealing machine which comprises a conveying device, an unwinding device, a cutting-off device and a profiling pressing and pasting device, and the unwinding device, the cutting-off device and the profiling pressing and pasting device are arranged on one side of the conveying device. The profiling pressing device comprises a guide pressing wheel arranged close to the cutting device, a guide pressing wheel advancing and retreating drive, a plurality of profiling pressing wheels arranged behind the guide pressing wheel and a profiling pressing wheel advancing and retreating drive, and the wheel diameter of the guide pressing wheel is 2-5 cm. According to the edge sealing machine adopting the technical scheme, the cutting allowance of the edge sealing strip can be reduced, for example, the cutting allowance of 7-10 cm is shortened to the cutting allowance of 0.5-1.5 cm, and production waste is reduced.

Description

An edge banding machine Technical Field

[0001] This application relates to the technical field of edge banding equipment, and more specifically, to an edge banding machine. Background Technology

[0002] After edge banding, boards and strips can be used to assemble panel furniture. An edge banding machine generally includes a conveying device for providing boards or strips, an unwinding device for providing edge banding strips, a contour pressing device, a cutting device for cutting the edge banding strips, an edge trimming device, a chamfering device, and a polishing device.

[0003] Compared to edge banding of boards or strips with a larger width, edge banding of narrow strips requires additional special processing. For example, the inventor proposed "An Edge Banding Machine for Narrow Strips" in 2024, publication number CN 118144062 A, which describes the technical problems existing in the edge banding of narrow strips and discloses a method that can overcome the aforementioned technical problems to perform high-precision edge banding of the ends of narrow strips with a width of 3-5 cm.

[0004] In practice, the edge banding process for narrow strips also suffers from excessive cutting allowance in the cutting device. Specifically, the unwinding reel of the unwinding device, in conjunction with the pressure roller, adheres the edge banding strip to the edge of the narrow strip. The cutting blade of the cutting device, installed between the unwinding reel and the large pressure roller, extends to cut the edge banding strip, separating the portion adhered to the end face of the narrow strip from the edge banding reel. However, the large pressure roller has a diameter of 10-16 cm, and considering the anti-interference distance between the devices, there is at least an 8-11 cm gap between the cutting blade and the center of the pressure roller. The actual PLC program control logic requires the cutting blade to perform the cutting action only after the edge banding strip feed roller has opened, resulting in at least 7-10 cm of edge banding strip remaining at the tail end of the narrow strip, leading to wasted edge banding strip. Summary of the Invention

[0005] The purpose of this application is to provide an unwinding device for an edge banding machine to solve the problems of excessive cutting allowance and waste of edge banding strip in the cutting device of existing edge banding machines. The specific technical solution adopted is as follows:

[0006] An edge-sealing machine includes a conveying device, an unwinding device, a cutting device, and a contour pressing device disposed on one side of the conveying device. The contour pressing device includes a guide roller disposed near the cutting device, a guide roller forward and backward drive, a plurality of contour pressing rollers disposed behind the guide roller, and a contour pressing roller forward and backward drive. The diameter of the guide roller is 2.5~5 cm.

[0007] Preferably, a standard pressure roller and a standard pressure roller advance / reverse drive are provided between the guide pressure roller and the contouring pressure roller, and the diameter of the standard pressure roller is 10~16cm.

[0008] Preferably, the unwinding device includes an unwinding frame, an unwinding table, and a guide wheel assembly mounted on the unwinding table. The guide wheel assembly includes a plurality of guide wheels installed along a path, and a longitudinal limiting rod is provided on the guiding side of the guide wheels.

[0009] Preferably, the axis of the longitudinal limiting rod is perpendicular to the tangent at the guiding position of the guide wheel.

[0010] Preferably, the top of the axle of the guide wheel is screwed to a mounting plate, and the longitudinal limiting rod is mounted on the mounting plate via a height adjustment assembly. The height adjustment assembly includes a vertical rod, an adjustment plate, and an adjustment bolt. The adjustment plate is bent into an obtuse angle, forming an inclined plate and a vertical plate. The inclined plate has a long through hole, and the vertical plate has a long adjustment hole. The vertical rod passes through the long through hole and the mounting plate, and its bottom end is fixedly connected to the longitudinal limiting rod. The adjustment bolt passes through the long adjustment hole and abuts against the side wall of the mounting plate.

[0011] Preferably, a mounting plate is screwed to the top of the axle of the guide wheel, and the auxiliary limiting wheel is fixedly mounted on the guiding side of the guide wheel through the mounting plate. There is a gap between the auxiliary limiting wheel and the guide wheel, and the bottom of the auxiliary limiting wheel is higher than the bottom of the guide wheel.

[0012] Preferably, the longitudinal limiting rod is positioned in front of the gap between the guide wheel and the auxiliary limiting wheel.

[0013] Preferably, a guide plate is provided between the guide wheel assembly and the guide pressure roller, and the guide surface of the guide plate is parallel to the pressing surface formed by the guide pressure roller and the contouring pressure roller.

[0014] Preferably, the guide plate has its inner side facing the cutting device as the guide surface, and the guide plate is positioned in front of the cutting direction of the cutting device.

[0015] Preferably, the cutting device includes a cutter, a cutter advance / retreat drive, and a cutter advance / retreat limiting plate. The cutter advance / retreat limiting plate has an edge sealing strip channel, and the guide plate is installed at the end of the cutter advance / retreat limiting plate.

[0016] The edge banding machine using the technical solution of this application can reduce the cutting allowance of the edge banding strip, for example, from 7~10 cm to 0.5~1.5 cm, thereby reducing production waste. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 is a schematic diagram of the unwinding device, cutting device, and contour pressing device of the edge banding machine provided in an embodiment of this application.

[0019] Figure 2 is a structural schematic diagram of the unwinding device, cutting device, and contour pressing device of the edge banding machine provided in the embodiment of this application from another perspective.

[0020] Figure 3 is a schematic diagram of a structure of the unwinding table and guide wheel assembly provided in an embodiment of this application.

[0021] Figure 4 is a magnified view of part A in Figure 1.

[0022] Figure 5 is a schematic diagram of a cutting device provided in an embodiment of this application.

[0023] In the above attached figures: 10, unwinding device; 20, cutting device; 30, contour pressing device; 11, unwinding table; 12, guide wheel assembly; 13, guide plate; 121, guide wheel; 122, longitudinal limit rod; 123, mounting plate; 124, height adjustment assembly; 125, auxiliary limit wheel; 1241, vertical rod; 1242, adjusting plate; 1243, adjusting bolt; 21, cutter; 22, cutter advance / retreat drive; 23, cutter advance / retreat limit plate; 24, edge sealing strip channel; 31, guide pressure roller; 32, guide pressure roller advance / retreat drive; 33, contour pressure roller; 34, contour pressure roller advance / retreat drive; 35, standard pressure roller; 36, standard pressure roller advance / retreat drive. Detailed Implementation

[0024] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Embodiments

[0025] The existing edge banding machine includes a conveying device and a frame. Along the conveying direction of the conveying device and located on the same side of the conveying device, the frame is equipped with an unwinding device 10, a cutting device 20, a contour pressing device 30, an edge trimming device, a chamfering device, a polishing device, and a PLC control system.

[0026] The unwinding device 10 includes an unwinding frame (not shown in the figure), an unwinding table 11, and a guide wheel assembly 12 mounted on the unwinding table 11. The guide wheel assembly 12 includes a plurality of guide wheels 121 installed along a path. The unwinding table 11 can be of the prior art; for example, it is a table with a mounting surface screwed onto a frame, suitable for providing a platform and support for the installation of the guide wheel assembly 12 and the passage of the edge sealing strip. The guide wheels 121 can be of the prior art; for example, they are unpowered wheels with their axles vertically mounted on the unwinding table 11.

[0027] The cutting device 20 includes a cutter 21, a cutter advance / retreat drive 22, and a cutter advance / retreat limiting plate 23. The cutter 21, the cutter advance / retreat drive 22, and the cutter advance / retreat limiting plate 23 can all be existing technologies. In this embodiment, a cylinder is used to advance the cutter 21, and the cutter advance / retreat limiting plate 23 abuts against the cutter 21, so that the cutter 21 can advance and retract in the direction defined by the cutter advance / retreat limiting plate 23.

[0028] The contour pressing device 30 includes a guide roller 31 located near the cutting device 20, a guide roller advance / retreat drive 32, a plurality of contour pressing rollers 33 located behind the guide roller 31, and a contour pressing roller advance / retreat drive 34. The guide roller advance / retreat drive 32 and the contour pressing roller advance / retreat drive 34 can be any of the prior art; in this embodiment, a cylinder is used for propulsion.

[0029] Referring to Figures 1-5, unlike existing edge banding machines, the edge banding machine provided in this embodiment has a guide roller 31 with a diameter of 2.5-5 cm, for example, 4 cm.

[0030] With the above structure, as the diameter of the guide roller 31 decreases, the distance from the axis of the guide roller 31 to the cutting position of the cutting device is shortened. Due to the reduction in the diameter of the roller, it is easier to avoid obstacles. Ultimately, the distance can be shortened from 8~11cm to 0.5~1.5cm, thereby reducing the cutting allowance of the edge banding strip from 7~10cm to 0.5~1.5cm, reducing production waste.

[0031] As a preferred embodiment, to be applicable to edge banding of both narrow and ordinary strips and boards, or to edge banding along the length of narrow strips, it is preferable to retain the standard pressure roller 35 and the standard pressure roller advance / retreat drive 36. The standard pressure roller 35 is installed between the guide pressure roller 31 and the contouring pressure roller 33, and the diameter of the standard pressure roller 35 is 10~16cm. The standard pressure roller advance / retreat drive 36 can be any of the prior art; in this embodiment, a cylinder is used for propulsion.

[0032] As shown in the figure, when the guide roller 31 is in the extended state, the bending amplitude (bending angle) formed by the edge sealing strip at the guide position of the guide roller 31 as it travels from the guide roller group 12 through the guide roller 31 to the contour roller 33 is greater than that when only the standard roller 35 is used. Therefore, to avoid problems such as jumping and uneven glue lines during the conveying process, it is preferable to provide a longitudinal limiting rod 122 on the guiding side of the guide roller 121. The lowest point of the longitudinal limiting rod 122 is at a certain distance from the unwinding table 11, and this distance matches the width of the edge sealing strip. At the same time, the axis of the longitudinal limiting rod 122 is perpendicular to the tangent at the guiding position of the guide roller 121. In other words, the edge sealing strip is perpendicular to the longitudinal limiting rod 122 when passing the guide roller 121, which makes the longitudinal limiting rod 122 more stable in limiting the longitudinal position of the edge sealing strip.

[0033] Specifically, the axle of the guide wheel 121 is screwed or welded to the unwinding table 11. The top of the axle of the guide wheel 121 is screwed to a mounting plate 123. The longitudinal limiting rod 122 is mounted on the mounting plate 123 via a height adjustment assembly 124. The height adjustment assembly 124 includes a vertical rod 1241, an adjustment plate 1242, and an adjustment bolt 1243. The adjustment plate 1242 is a sloping plate and a vertical plate bent at an obtuse angle. A long through hole is provided on the sloping plate, and a long adjustment hole is provided on the vertical plate. The vertical rod 1241 passes through the long through hole and the mounting plate 123, and its bottom end is fixedly connected to the longitudinal limiting rod 122. The adjustment bolt 1243 passes through the long adjustment hole and abuts against the side wall of the mounting plate 123.

[0034] With the above structure, by loosening the bolt connection, rotating the mounting plate 123, and then tightening the bolt connection again, the setting angle of the longitudinal limiting rod 122 can be changed so that its axis is perpendicular to the tangent at the guide position of the guide wheel 121. At the same time, by loosening the adjusting bolt 1243, the setting height of the longitudinal limiting rod 122 (relative to the unwinding table 11) can be adjusted so that the distance between its lowest point and the unwinding table 11 is always equal to or slightly greater than the width of the edge banding strip.

[0035] Furthermore, to accommodate cases where the edge banding strip is wide, it is preferable to install an auxiliary limiting wheel 125 on the guiding side of the guide wheel 121. For example, the axle of the auxiliary limiting wheel 125 can be fixedly mounted on the mounting plate with a ground screw. Of course, there should be a gap between the auxiliary limiting wheel 125 and the guide wheel 121 that allows the edge banding strip to pass through. Simultaneously, the bottom of the auxiliary limiting wheel 125 is higher than the bottom of the guide wheel 121, which allows the limiting position of the auxiliary limiting wheel 125 on the edge banding strip to be closer to the upper part of the edge banding strip's width direction, thus enabling better engagement with the longitudinal limiting rod 122.

[0036] To further improve the cooperation between the longitudinal limiting rod 122 and the auxiliary limiting wheel 125, the longitudinal limiting rod 122 is positioned in front of the gap between the guide wheel 121 and the auxiliary limiting wheel 125. Preferably, the axial direction of the longitudinal limiting rod 122 is parallel to the line connecting the axles of the guide wheel 121 and the auxiliary limiting wheel 125.

[0037] In addition, to further alleviate the problem of large bending of the edge banding caused by the small diameter of the guide roller 31, a guide plate 13 is provided between the guide roller assembly 12 and the guide roller 31, and the guide surface of the guide plate 13 should be parallel to the pressing surface formed by the guide roller 31 and the contour roller 33. Preferably, the extension surface of the guide surface of the guide plate 13 should pass through the pressing surface formed by the guide roller 31 and the contour roller 33.

[0038] Specifically, a sealing strip channel 24 is formed on the cutter advance / retreat limit plate 23 near its front end. A guide plate 13 is screwed to the end of the cutter advance / retreat limit plate 23, so that the sealing strip is guided and limited by the sealing strip channel 24, and further guided by the guide plate 13 to be supplied to the guide pressure roller 31. This allows the cutter 21 to be pushed out and cut the sealing strip. At this time, the inner side of the guide plate 13 facing the cutting device 20 is the guide surface, and the guide plate 13 is located in front of the cutting direction of the cutting device 20.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this application.

Claims

1. An edge-sealing machine, comprising a conveying device, and an unwinding device, a cutting device, and a contouring pressing device disposed on one side of the conveying device, wherein the contouring pressing device includes a guide roller disposed near the cutting device, a guide roller advance / retreat drive, a plurality of contouring rollers disposed behind the guide roller, and a contouring roller advance / retreat drive, characterized in that, The diameter of the guide roller is 2.5~5 cm.

2. The edge banding machine according to claim 1, characterized in that, A standard pressure roller and a standard pressure roller advance / reverse drive are provided between the guide pressure roller and the contour pressure roller. The diameter of the standard pressure roller is 10~16cm.

3. The edge banding machine according to claim 1, characterized in that, The unwinding device includes an unwinding frame, an unwinding table, and a guide wheel assembly mounted on the unwinding table. The guide wheel assembly includes multiple guide wheels installed along a path, and a longitudinal limiting rod is provided on the guiding side of each guide wheel.

4. The edge banding machine according to claim 3, characterized in that, The axis of the longitudinal limiting rod is perpendicular to the tangent at the guiding position of the guide wheel.

5. The edge banding machine according to claim 4, characterized in that, A mounting plate is screwed to the top of the axle of the guide wheel. The longitudinal limiting rod is mounted on the mounting plate via a height adjustment assembly. The height adjustment assembly includes a vertical rod, an adjustment plate, and an adjustment bolt. The adjustment plate is bent into an obtuse angle, forming an inclined plate and a vertical plate. A long through hole is formed on the inclined plate, and a long adjustment hole is formed on the vertical plate. The vertical rod passes through the long through hole and the mounting plate, and its bottom end is fixedly connected to the longitudinal limiting rod. The adjustment bolt passes through the long adjustment hole and abuts against the side wall of the mounting plate.

6. The edge banding machine according to claim 3, characterized in that, A mounting plate is screwed to the top of the axle of the guide wheel. The auxiliary limiting wheel is fixedly installed on the guide side of the guide wheel through the mounting plate. There is a gap between the auxiliary limiting wheel and the guide wheel, and the bottom of the auxiliary limiting wheel is higher than the bottom of the guide wheel.

7. The edge banding machine according to claim 6, characterized in that, The longitudinal limiting rod is positioned in front of the gap between the guide wheel and the auxiliary limiting wheel.

8. The edge banding machine according to claim 3, characterized in that, A guide plate is provided between the guide wheel assembly and the guide pressure roller, and the guide surface of the guide plate is parallel to the pressing surface formed by the guide pressure roller and the contouring pressure roller.

9. The edge banding machine according to claim 8, characterized in that, The guide plate has its inner side facing the cutting device as the guide surface, and the guide plate is positioned in front of the cutting direction of the cutting device.

10. The edge banding machine according to claim 9, characterized in that, The cutting device includes a cutter, a cutter advance / retreat drive, and a cutter advance / retreat limiting plate. The cutter advance / retreat limiting plate has an edge sealing strip channel, and the guide plate is installed at the end of the cutter advance / retreat limiting plate.

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