Switching mechanism of edge bonding machine

Abstract

The utility model relates to the technical field of edge banding equipment, in particular to a switching mechanism of an edge banding machine, which comprises a first advancing and retreating unit and a second advancing and retreating unit, the first advancing and retreating unit can make a first edge banding mechanism advance and retreat along the x-axis direction, and the second advancing and retreating unit can make a second edge banding mechanism advance and retreat along the x-axis direction. The second advancing and retreating unit can enable the second edge sealing mechanism to advance and retreat in the y-axis direction; when the first edge sealing mechanism advances to the advancing end point along with the first advancing and retreating unit, the first edge sealing mechanism is located at an edge sealing station, the second edge sealing mechanism is located at a retreating position, and when the second edge sealing mechanism advances to the advancing end point along with the second advancing and retreating unit, the second edge sealing mechanism is located at the edge sealing station. The first edge sealing mechanism is located at the retreating position. By applying the switching mechanism, the hot melting edge sealing mechanism and the laser edge sealing mechanism can be used at the same time, the distances between the hot melting edge sealing mechanism and the laser edge sealing mechanism and the profiling pressing and pasting mechanism are the same in use, and the bonding strength can be achieved when the hot melting edge sealing mechanism and the laser edge sealing mechanism are singly used.

Description

A switching mechanism for an edge banding machine Technical Field

[0001] This application relates to the technical field of edge banding equipment, and more specifically, to a switching mechanism for 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 mechanism for providing boards or strips, an unwinding mechanism for providing edge banding strips, an edge banding mechanism, a contour pressing mechanism, a front and rear cutting mechanism for cutting the edge banding strips, an edge trimming mechanism, a chamfering mechanism, and a polishing mechanism.

[0003] Traditional edge banding mechanisms apply hot melt adhesive (such as EVA or PUR adhesive) to the side of the board or strip as the edge banding strip is released by the unwinding mechanism. Then, a contour pressing mechanism presses the edge banding strip onto the adhesive surface of the board or strip, and finally, a cutting mechanism cuts the continuous edge banding strip. Traditional edge banding mechanisms produce poor edge banding results, mainly due to noticeable adhesive lines, making it difficult to achieve a seamless edge banding effect.

[0004] To address this, existing technologies have proposed a laser edge-sealing mechanism. The advantage of this mechanism is its ability to achieve seamless edge sealing, resulting in a more aesthetically pleasing finish. For example, Chinese invention patent CN117359747B, entitled "A Laser Edge-Sealing Machine with Narrow Plate Edge-Sealing Function," provides a laser edge-sealing mechanism comprising a laser host, a chiller, and a laser galvanometer unit. The laser host is fixedly mounted on a main frame and electrically connected to an industrial interconnection controller and a smart industrial touchscreen. The chiller is connected to both the laser host and the laser galvanometer unit via pipelines, forming a circuit to cool both units. Of course, in actual production, edge-sealing strips requiring molten adhesive or glue application are generally not used; instead, edge-sealing strips with a hot-melt adhesive layer are used directly, further simplifying the structure of the edge-sealing machine.

[0005] Laser edge banding mechanisms are costly to use, and edge banding strips with hot melt adhesive layers are also expensive. For example, Chinese invention patent CN117836119B, entitled "Edge Banding Strip and Method for Producing Edge Banding Strip," describes an edge banding strip whose functional layer (hot melt adhesive layer) includes a matrix polymer containing ethylene-vinyl acetate polymer, a tackifier, an adhesion promoter composed of at least one semi-crystalline polymer with an average molecular weight of 30 kg / mol or less, an antioxidant, and a selective wax. Therefore, in situations where product costs need to be controlled, traditional edge banding mechanisms are still necessary, such as the hot melt extrusion device described in Chinese invention patent application CN117841137A, entitled "A Woodworking Edge Banding Machine with a Linked Hot Melt Extrusion Device."

[0006] To enable edge banding machines to simultaneously perform traditional hot melt adhesive edge banding and the newer laser edge banding, thus reducing production costs, existing technology employs a method of sequentially installing the laser edge banding mechanism and the hot melt edge banding mechanism along the conveying direction of the conveyor. However, placing the laser edge banding mechanism closer to the conformal pressing mechanism directly forces the hot melt edge banding mechanism to be installed further away from the conformal pressing mechanism. This inevitably leads to the hot melt edge banding mechanism, especially in winter, experiencing cooling or at least a significant temperature drop in the molten hot melt adhesive before reaching the conformal pressing mechanism. This significantly affects the bonding strength of the edge banding strip, the thickness of the adhesive line, and the aesthetics of the product. Summary of the Invention

[0007] The purpose of this application is to provide a switching mechanism for an edge banding machine, thereby solving the limitations of existing edge banding machines that can only use either a hot-melt edge banding mechanism or a laser edge banding mechanism, or the problem that the bonding strength of the edge banding mechanism installed far from the conformal pressing mechanism is relatively high when both are used simultaneously. The specific technical solution adopted is as follows:

[0008] A switching mechanism for an edge banding machine includes a first forward / backward unit and a second forward / backward unit. The first forward / backward unit enables a first edge banding mechanism to move forward and backward along the x-axis, and the second forward / backward unit enables a second edge banding mechanism to move forward and backward along the y-axis. When the first edge banding mechanism moves forward with the first forward / backward unit to its forward endpoint, the first edge banding mechanism is located at the edge banding station, and the second edge banding mechanism is located at the retracted position. When the second edge banding mechanism moves forward with the second forward / backward unit to its forward endpoint, the second edge banding mechanism is located at the edge banding station, and the first edge banding mechanism is located at the retracted position.

[0009] Preferably, along the conveying direction of the conveying mechanism, the first forward and backward unit is located at the front end relative to the second forward and backward unit, and the first edge sealing mechanism is a hot melt edge sealing mechanism, while the second forward and backward unit is a laser edge sealing mechanism.

[0010] Preferably, the angle between the x-axis direction and the y-axis direction is 40~50°.

[0011] Preferably, the y-axis direction is parallel to the conveying direction of the conveying mechanism.

[0012] Preferably, the first forward / backward unit includes a first mounting plate, a first slider disposed on the back of the first mounting plate, a first guide rail disposed on the frame, and a first forward / backward drive disposed on the frame.

[0013] Preferably, the second forward / backward unit includes a second mounting plate, a second slider disposed on the back of the second mounting plate, a second guide rail disposed on the frame, and a second forward / backward drive disposed on the frame.

[0014] Preferably, the second edge sealing mechanism is mounted on the second mounting plate via a mounting bracket.

[0015] Preferably, both the first forward / reverse drive and the second forward / reverse drive are cylinders.

[0016] Preferably, the first guide rail is provided with a first limiting structure at both its front and rear ends. The first limiting structure includes a first limiting seat disposed on the frame, a first proximity switch and a first buffer gas rod disposed on the first limiting seat, and a first limiting plate disposed on the end face of the first mounting plate. The first limiting plate is disposed opposite to the first proximity switch.

[0017] Preferably, the front and rear ends of the second guide rail are provided with a second limiting structure. The second limiting structure includes a second limiting seat provided on the frame, a second proximity switch and a second buffer gas rod provided on the second limiting seat, and a second limiting plate provided on the end face of the second mounting plate. The second limiting plate is disposed opposite to the second proximity switch.

[0018] The switching mechanism of the edge banding machine using the technical solution of this application can simultaneously use the hot melt edge banding mechanism and the laser edge banding mechanism, and the distance between the two from the conformal pressing mechanism is the same during use, and the bonding strength can be achieved when used alone. Attached Figure Description

[0019] 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:

[0020] Figure 1 is a schematic diagram of the switching mechanism of the edge banding machine provided in an embodiment of this application under one working state.

[0021] Figure 2 is a schematic diagram of the switching mechanism of the edge banding machine provided in an embodiment of this application under another working state.

[0022] Figure 3 is a top view of the switching mechanism of the edge banding machine provided in an embodiment of this application.

[0023] Figure 4 is a schematic diagram of a first limiting structure provided in an embodiment of this application.

[0024] Figure 5 is a schematic diagram of a second limiting structure provided in an embodiment of this application.

[0025] In the above figures: 10, first forward / backward unit; 20, second forward / backward unit; 30, first edge sealing mechanism; 40, second edge sealing mechanism; 50, frame; 60, mounting bracket; 11, first mounting plate; 12, first slider; 13, first guide rail; 14, first forward / backward drive; 15, first limiting structure; 151, first limiting seat; 152, first limiting plate; 153, first proximity switch; 154, first buffer air rod; 21, second mounting plate; 22, second slider; 23, second guide rail; 24, second forward / backward drive; 25, second limiting structure; 251, second limiting seat; 252, second limiting plate; 253, second proximity switch; 254, second buffer air rod. Detailed Implementation

[0026] 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

[0027] Referring to FIG1, a switching mechanism for an edge banding machine includes a first forward / backward unit 10 and a second forward / backward unit 20. Both the first forward / backward unit 10 and the second forward / backward unit 20 are connected to the main control system of the edge banding machine. The main control system can be any of the existing technologies, such as a PLC control cabinet, which is suitable for realizing the electrical control, logic operation, parameter setting, human-machine interaction, etc. of the edge banding machine.

[0028] The first advance / retreat unit 10 enables the first edge-sealing mechanism 30 to move forward and backward along the x-axis, and the second advance / retreat unit 20 enables the second edge-sealing mechanism 40 to move forward and backward along the y-axis. When the first edge-sealing mechanism 30 advances with the first advance / retreat unit 10 to its forward endpoint, the first edge-sealing mechanism 30 is located at the edge-sealing station, and the second edge-sealing mechanism 40 is located in the retracted position; when the second edge-sealing mechanism 40 advances with the second advance / retreat unit 20 to its forward endpoint, the second edge-sealing mechanism 40 is located at the edge-sealing station, and the first edge-sealing mechanism 30 is located in the retracted position. Those skilled in the art know how to set appropriate edge-sealing stations according to unwinding mechanisms, conveying mechanisms, etc. The retracted position has no special definition, as long as it does not hinder the operation of the edge-sealing mechanism at the edge-sealing station. In this embodiment, the retracted positions are the retracted endpoints of the first advance / retreat unit 10 and the second advance / retreat unit 20, respectively.

[0029] Specifically, the first forward / reverse unit 10 includes a first mounting plate 11, a first slider 12 screwed to the back of the first mounting plate 11, a first guide rail 13 screwed to the frame 50, and a first forward / reverse drive 14 screwed to the frame 50. The first forward / reverse drive 14 can be any of the prior art. In this embodiment, a cylinder is used as the first forward / reverse drive 14, and its telescopic end is screwed to the back of the first mounting plate 11.

[0030] The first guide rail 13 has a first limiting structure 15 at both its front and rear ends. Each first limiting structure 15 includes a first limiting seat 151 screwed or welded onto the frame 50. A first proximity switch 153 and a first buffer gas rod 154 are screwed onto the first limiting seat 151. A first limiting plate 152 is screwed onto the end face of the first mounting plate 11, and the first limiting plate 152 is positioned opposite the first proximity switch 153. When the front end face of the first mounting plate 11 contacts the first limiting structure 15 at the front end of the first guide rail 13, the first mounting plate 11 and the first edge-sealing mechanism 30 mounted thereon are considered to be in the edge-sealing position. When the rear end face of the first mounting plate 11 contacts the first limiting structure 15 at the rear end of the first guide rail 13, the first mounting plate 11 and the first edge-sealing mechanism 30 mounted thereon are considered to be in the retracted position.

[0031] The second forward / reverse unit 20 includes a second mounting plate 21, a second slider 22 screwed to the back of the second mounting plate 21, a second guide rail 23 screwed to the frame 50, and a second forward / reverse drive 24 screwed to the frame 50. The second forward / reverse drive 24 can be any of the prior art. In this embodiment, a cylinder is used as the second forward / reverse drive 24, and its telescopic end is screwed to the back of the second mounting plate 21.

[0032] The second guide rail 23 is provided with a second limiting structure 25 at both its front and rear ends. The second limiting structure 25 includes a second limiting seat 251 screwed or welded onto the frame 50. A second proximity switch 253 and a second buffer gas rod 254 are screwed onto the second limiting seat 251. A second limiting plate 252 is screwed onto the end face of the second mounting plate 21, and the second limiting plate 252 is positioned opposite the second proximity switch 253. When the front end face of the second mounting plate 21 contacts the second limiting structure 25 at the front end of the second guide rail 23, the second mounting plate 21 and the second edge-sealing mechanism 40 mounted thereon are considered to be in the edge-sealing position. When the rear end face of the second mounting plate 21 contacts the second limiting structure 25 at the rear end of the second guide rail 23, the second mounting plate 21 and the second edge-sealing mechanism 40 mounted thereon are considered to be in the retracted position.

[0033] Alternatively, the endpoints of the first guide rail 13 and the second guide rail 23 can be located at the same position to ensure that both the first edge-sealing mechanism 30 and the second edge-sealing mechanism 40 reach the edge-sealing station when they advance to their endpoints. However, to better avoid interference, it is preferable that the endpoint of the first guide rail 13 is the edge-sealing station, while the endpoint of the second guide rail 23 is at a certain distance from this position. Simultaneously, the second edge-sealing mechanism 40 is fixedly mounted on the second mounting plate 21 via the mounting bracket 60, ensuring that when the second edge-sealing mechanism 40 reaches the endpoint of the second guide rail 23, it is also located at the edge-sealing station. For example, the second edge-sealing mechanism 40 is screwed onto the mounting bracket 60, allowing it to extend beyond the second mounting plate 21 and be located at the edge-sealing station due to its own width.

[0034] During assembly, along the conveying direction of the conveying mechanism, the first forward / backward unit 10 is positioned at the front end relative to the second forward / backward unit 20, and the first edge-sealing mechanism 30 is a hot-melt edge-sealing mechanism, while the second forward / backward unit 40 is a laser edge-sealing mechanism. In other words, the first forward / backward unit 10 is positioned closer to the contour pressing mechanism. Simultaneously, the angle between the x-axis and y-axis directions is set to 40~50°.

[0035] More preferably, the y-axis direction is parallel to the conveying direction of the conveying mechanism.

[0036] 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. A switching mechanism of an edge bander, characterized by, It includes a first forward / backward unit and a second forward / backward unit. The first forward / backward unit enables the first edge-sealing mechanism to move forward and backward along the x-axis, and the second forward / backward unit enables the second edge-sealing mechanism to move forward and backward along the y-axis. When the first edge-sealing mechanism moves forward with the first forward / backward unit to its forward endpoint, the first edge-sealing mechanism is located at the edge-sealing station, and the second edge-sealing mechanism is located at the retracted position. When the second edge-sealing mechanism moves forward with the second forward / backward unit to its forward endpoint, the second edge-sealing mechanism is located at the edge-sealing station, and the first edge-sealing mechanism is located at the retracted position.

2. The switching mechanism of an edge bander according to claim 1, characterized in that, Along the conveying direction of the conveying mechanism, the first forward and backward unit is located at the front end relative to the second forward and backward unit, and the first edge sealing mechanism is a hot melt edge sealing mechanism, while the second forward and backward unit is a laser edge sealing mechanism.

3. The switching mechanism of an edge bander according to claim 2, characterized in that, The angle between the x-axis and the y-axis is 40~50°.

4. The switching mechanism of an edge bander according to claim 2, characterized in that, The y-axis direction is parallel to the conveying direction of the conveying mechanism.

5. The switching mechanism of an edge bander according to claim 1, characterized in that, The first forward / backward unit includes a first mounting plate, a first slider disposed on the back of the first mounting plate, a first guide rail disposed on the frame, and a first forward / backward drive disposed on the frame.

6. The switching mechanism of an edge bander according to claim 5, characterized in that, The second forward / backward unit includes a second mounting plate, a second slider disposed on the back of the second mounting plate, a second guide rail disposed on the frame, and a second forward / backward drive disposed on the frame.

7. The switching mechanism of the edge banding machine according to claim 6, characterized in that, The second edge sealing mechanism is mounted on the second mounting plate via a mounting bracket.

8. The switching mechanism of an edge bander according to claim 6, characterized in that, Both the first forward / reverse drive and the second forward / reverse drive are cylinders.

9. The switching mechanism of an edge bander according to claim 5, characterized in that, The first guide rail is provided with a first limiting structure at both its front and rear ends. The first limiting structure includes a first limiting seat on the frame, a first proximity switch and a first buffer gas rod on the first limiting seat, and a first limiting plate on the end face of the first mounting plate. The first limiting plate is disposed opposite to the first proximity switch.

10. The switching mechanism of an edge bander according to claim 6, characterized in that, The second guide rail is provided with a second limiting structure at both its front and rear ends. The second limiting structure includes a second limiting seat on the frame, a second proximity switch and a second buffer gas rod on the second limiting seat, and a second limiting plate on the end face of the second mounting plate. The second limiting plate is disposed opposite to the second proximity switch.

Images