An edge strip guide groove

Abstract

An edge band guiding groove relates to the technical field of edge banding machines, which comprises an arc-shaped bottom plate, an outer arc-shaped plate and an inner arc-shaped plate are formed on the arc-shaped bottom plate, a channel for accommodating the edge band to pass through is formed between the outer arc-shaped plate and the inner arc-shaped plate, connecting plates are formed on both sides of the arc-shaped bottom plate, long holes are formed on the connecting plates, and the end of the arc-shaped bottom plate is twisted upward. The guiding channel structure formed by the arc-shaped bottom plate matched with the inner and outer arc-shaped plates can accurately guide the edge band to enter the glue pot assembly above the table top from the bottom of the table top, the adjustable height-limiting guiding assembly can adapt to the guiding requirements of edge bands of different heights and curvatures, and the edge band can be accurately guided and conveyed.

Description

Technical Field

[0001] This utility model relates to the field of edge banding machine technology, and more specifically, to an edge banding strip guide groove. Background Technology

[0002] Edge banding machines are commonly used equipment in woodworking, mainly for banding the outer edges of boards. Common edge banding machines on the market include the Yintai F12-3 stacked arm curved surface edge banding machine and the Yintai F10 curved and straight line edge banding machine, both produced by KONAY Yintai Equipment (Shandong) Co., Ltd.

[0003] However, in actual production, the demand for edge banding inside sheet materials is becoming increasingly prominent, especially for materials with small internal holes, where the existing edge banding machine structure has significant shortcomings. Traditional edge banding machines typically have their guiding devices located on the upper table of the equipment. This table not only houses the guiding mechanism but also the glue pot assembly, bonding rollers, etc., occupying a considerable amount of space. This layout makes it unsuitable for the special working conditions of edge banding the inner side of sheet materials. When edge banding the inner cavity of a sheet material is required, existing equipment lacks an effective guiding mechanism to ensure the edge banding strip accurately enters the glue pot assembly, thus affecting the adhesion between the edge banding strip and the inner cavity of the sheet material, severely impacting edge banding quality and processing efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art, and then to propose a guide groove for the edge sealing strip.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An edge banding guide groove includes an arc-shaped base plate, on which an outer arc-shaped plate and an inner arc-shaped plate are formed, and a channel for accommodating the edge banding strip to pass through is formed between the outer arc-shaped plate and the inner arc-shaped plate.

[0006] Furthermore, connecting plates are formed on both sides of the arc-shaped base plate, and elongated holes are formed on the connecting plates.

[0007] Furthermore, the ends of the arc-shaped base plate are twisted obliquely upwards.

[0008] Furthermore, the arc-shaped bottom plate is twisted diagonally towards the glue pot assembly from bottom to top at one end near the glue pot assembly.

[0009] Furthermore, the inlet of the channel is provided with a guide opening.

[0010] Furthermore, the outer arc-shaped plate has an outer guide plate at its end, and the inner arc-shaped plate has an inner guide plate at its end, with the outer guide plate and the inner guide plate forming the guide opening.

[0011] Furthermore, at least one set of height-limiting guide components is formed on the arc-shaped base plate. The height-limiting guide components include a central screw. A positioning hole is formed on the arc-shaped base plate to accommodate the passage of the central screw. An eccentric wheel is threadedly connected to the central screw. The bottom of the eccentric wheel abuts against the arc-shaped base plate. An upper fastening nut and a lower fastening nut are threadedly connected to the central screw. The lower fastening nut is located at the bottom of the arc-shaped base plate, and the upper fastening nut is located at the top of the eccentric wheel. Several bearings are rotatably connected to the eccentric wheel.

[0012] Furthermore, a height limiting plate is provided at the top of the central screw, and a height limiting guide wheel is rotatably connected to the height limiting plate.

[0013] Furthermore, the height restriction plate includes a plate body, a central hole formed in the middle of the plate body to accommodate a central screw, an expansion joint provided on one side of the plate body, a through hole and a locking threaded hole respectively provided on both sides of the expansion joint, a bolt provided in the through hole, the bolt passing through the through hole and the expansion joint and then threadedly connected to the locking threaded hole, a lower mounting plate formed at the bottom of the plate body, a pivot hole provided on the lower mounting plate, a pivot hole installed in the pivot hole, and a height restriction guide wheel rotatably connected to the pivot.

[0014] Furthermore, the eccentric wheel includes a lower column and an upper hexagonal portion, the lower column and the upper deformable portion are integrally formed, and a through eccentric hole is formed in the middle of the eccentric wheel.

[0015] As can be seen from the above, the edge banding guide groove provided in this application, through the guide channel structure formed by the arc-shaped base plate and the inner and outer arc plates, can accurately guide the edge banding strip from the bottom of the table into the glue pot assembly above the table. Its adjustable height-limiting guide component can adapt to the guiding needs of edge banding strips of different heights and curvatures, ensuring the advantage of accurate guiding and conveying of the edge banding strip. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the usage state of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 A three-dimensional structural diagram of the height-limiting guide component; Figure 4 This is a three-dimensional structural diagram of the eccentric wheel; The components include: 200 base box, 300 platform, 301 rectangular through hole, 100 edge sealing strip guide groove, 101 arc-shaped base plate, 102 outer arc plate, 1021 outer guide plate, 103 inner arc plate, 1031 inner guide plate, 104 connecting plate, 105 elongated hole, 106 height limiting guide assembly, 1061 center screw, 1062 height limiting plate, 10621 plate body, 10622 expansion joint, 10623 through hole, 10624 lower mounting plate, 10625 center hole, 1063 height limiting guide wheel, 1064 eccentric wheel, 10641 lower column, 10642 upper hexagonal part, 10643 through eccentric hole, 1065 upper fastening nut, 1066 bearing, 1067 lower fastening nut, and 107 guide opening. Detailed Implementation

[0017] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In existing technologies, traditional edge banding machines typically employ a planar guide structure, with its working parts positioned above the machine table, suitable for edge banding operations on the outer side of boards. However, this structure cannot adapt to the narrow spaces within the boards' interior cavities, especially when the internal holes are small. Conventional guide devices, due to size limitations, struggle to enter the cavity, causing the edge banding strip to be unable to be stably conveyed along the predetermined path, resulting in decreased edge banding quality or processing failure. For example, when processing furniture boards with circular internal holes, existing guide channels lack spatial adaptability, making continuous edge banding operations on the inner cavity edges impossible. To address the aforementioned issues, researchers observed a conflict between the edge-sealing requirements of the sheet metal's internal cavity and the spatial adaptability of existing guiding structures. By analyzing the movement trajectory of the edge-sealing strip within the edge-sealing machine, they discovered that an arc-shaped path effectively accommodates the machine's bottom-up guiding requirements. Further research revealed that designing the guide groove as an arc-shaped structure not only matches existing glue pot components but also provides continuous support for the edge-sealing strip. Based on this, a closed channel is proposed using a specific structure to ensure stable conveying of the edge-sealing strip along the curved path.

[0019] like Figures 1-3 As shown, the inner edge sealing machine includes a base box 200, and a table 300 is provided on the top of the base box. A rectangular through hole 301 is formed in the middle of the table. The edge sealing strip guide groove 100 extends from the bottom box through the rectangular through hole to the top of the table and connects with the glue pot assembly, thereby realizing the edge sealing strip being transported from below the table to the existing glue pot assembly.

[0020] like Figure 2 and Figure 4 As shown, a guide groove for edge banding includes an arc-shaped base plate 101, on which an outer arc-shaped plate 102 and an inner arc-shaped plate 103 are formed, and a channel for accommodating the edge banding strip is formed between the outer arc-shaped plate and the inner arc-shaped plate.

[0021] The curved base plate refers to a support component with a curved shape. It can be formed by stamping metal sheets, or by die casting, casting, welding, or 3D printing. Its radius of curvature can be adjusted according to the dimensions of the edge banding machine and glue pot assembly. The outer curved plate is an arc-shaped enclosure located on the outer edge of the base plate. It can be connected to the base plate by welding or integral molding, and is used to limit the lateral displacement of the edge banding strip. The inner curved plate is an arc-shaped enclosure located on the inner edge of the base plate. Its height can be slightly lower than the outer curved plate, and it forms a limiting space together with the outer enclosure. The channel is a continuous guide path formed by the inner and outer curved plates and the base plate. It can be controlled by adjusting the distance between the two curved plates, and is used to constrain the movement trajectory of the edge banding strip. Specifically, the curved shape of the base plate allows it to extend from the bottom of the tabletop to the glue pot assembly. The outer and inner curved plates extend along the inner and outer edges of the base plate, respectively, forming a guide channel of a predetermined width. When the edge banding strip enters through the channel, its sides are constrained by the inner and outer curved plates, while its bottom is supported by the curved base plate, thus maintaining a stable conveying state along the curved path. The continuous curved structure of the channel guides the edge banding strip to move precisely along the predetermined channel, avoiding misalignment caused by path deviation. Compared with existing technologies, traditional guide channels adopt a straight or simple bending structure, which is only suitable for sealing the outer edge of open spaces. This solution, through the combination structure of arc-shaped base plate and double arc plate, forms a continuous guide channel in a limited space, breaking through the spatial limitation of sealing with built-in holes. Through the above technical solution, this application achieves stable bottom-up guidance of the edge banding strip in the edge banding machine, solves the problem that the existing edge banding machine components occupy too much space and cannot be used when edge banding with built-in holes, expands the application scope of the edge banding equipment, and is especially suitable for furniture manufacturing scenarios with round or irregularly shaped built-in holes in the processing of boards.

[0022] Furthermore, connecting plates 104 are formed on both sides of the arc-shaped base plate, and elongated holes 105 are formed on the connecting plates. The connecting plates are plate-like structures located on both sides of the arc-shaped base plate, which can be formed by stamping or welding metal sheets, and are used to connect and fix the guide groove to external equipment. The elongated holes are strip-shaped through holes extending along the length of the connecting plates, which can be machined by milling or stamping processes, allowing bolts to pass through and adjusting the installation position of the guide groove by adjusting the position of the bolts within the elongated holes.

[0023] Furthermore, the end of the arc-shaped base plate is twisted obliquely upwards. This oblique upward twisting refers to the end of the base plate bending upwards at a certain angle, which can be achieved using stamping or hot bending processes. The direction of movement of the edge banding strip is adjusted by changing the shape of the end of the base plate.

[0024] Specifically, the end of the arc-shaped base plate furthest from the connecting plate is twisted obliquely upwards. This furthest end refers to the free end of the base plate that is not connected to the connecting plate. This can be achieved through a segmented structural design, creating an angle difference between the free end and the connecting end to accommodate different installation requirements. In this embodiment, the end of the arc-shaped base plate closest to the glue pot assembly twists obliquely upwards towards the glue pot assembly.

[0025] Furthermore, the inlet of the channel is formed with a guide port 107.

[0026] Among them, the guide opening refers to the guiding structure set at the entrance of the channel. Specifically, it can be implemented by adopting a trumpet-shaped opening or a gradually expanding opening structure. Its function is to expand the entrance width and gradually narrow it to the standard size of the channel, thereby reducing the risk of positional deviation when the edge banding strip enters the channel. Specifically, the guide opening is formed by symmetrical bevels extending from the ends of the outer and inner arc-shaped plates. The inlet width can be set to 1.5 to 2 times the channel width, for example, an inlet width of 15 mm and a channel width of 10 mm. When the edge sealing strip enters the guide opening, its edge first contacts the bevel structure and gradually converges to align with the channel as it moves. The inner edge of the guide opening can be set as an arc transition to reduce the frictional resistance when the edge sealing strip surface contacts the guide opening. Specifically, an outer guide plate 1021 is formed at the end of the outer arc-shaped plate, and an inner guide plate 1031 is formed at the end of the inner arc-shaped plate. The outer guide plate and the inner guide plate form the guide opening. The outer guide plate refers to a plate-like structure formed by extending outward from the end of the outer arc-shaped plate, which can be achieved using a metal stamping process. Its function is to physically limit the outer edge of the edge banding strip. The inner guide plate refers to a plate-like structure formed by extending inward from the end of the inner arc-shaped plate, which can be achieved using a processing method symmetrical to the outer guide plate. Its function is to constrain the inner edge of the edge banding strip.

[0027] In at least one embodiment, at least one set of height-limiting guide components 106 are formed on the arc-shaped base plate. The height-limiting guide components include a central screw 1061. A positioning hole for accommodating the passage of the central screw is formed on the arc-shaped base plate. An eccentric wheel 1064 is threadedly connected to the central screw. The bottom of the eccentric wheel abuts against the arc-shaped base plate. An upper fastening nut 1065 and a lower fastening nut 1067 are threadedly connected to the central screw. The lower fastening nut is located at the bottom of the arc-shaped base plate, and the upper fastening nut is located at the top of the eccentric wheel. A plurality of bearings 1066 are rotatably connected to the eccentric wheel.

[0028] The adjustment of the edge banding thickness is related to the curvature of the edge banding. The height-limiting guide assembly refers to the guide structure used to adjust the channel height and width. Specifically, it uses a central screw and an eccentric wheel to achieve channel width adjustment. The central screw passes through a positioning hole and is fixed in position by upper and lower fastening nuts, thereby controlling the position of the eccentric wheel. Due to different material requirements, when it is necessary to replace the edge banding with different thicknesses, their curvature varies. For example, if the previous channel width was suitable for a thicker edge banding, but a thinner edge banding is used, the edge of the edge banding may touch the outer or inner curved plate, increasing frictional resistance. Therefore, the central screw and eccentric wheel are used to adjust the channel width to accommodate edge banding of different thicknesses.

[0029] The eccentric wheel refers to an eccentric structure that adjusts the travel path of the edge banding strip by rotation. Specifically, it can be implemented using a wheel with bearings. The bearings reduce friction when in contact with the edge banding strip. Without bearings, the edge banding strip directly rubs against the outer and inner curved plates, resulting in significant resistance. Adding bearings reduces the resistance during guidance. The channel width cannot be too wide or too narrow. Too wide a channel can lead to excessive movement of the edge banding strip, causing guide deviation; too narrow a channel can cause blockage. The eccentric wheel design allows for adjustment of the channel width to accommodate edge banding strips of different widths. The positioning hole is a hole structure used to fix the position of the central screw. Specifically, it can be implemented using a round hole or a long hole matching the diameter of the central screw. After the central screw passes through the positioning hole, it is clamped and fixed by upper and lower fastening nuts, ensuring the stability of the height-limiting guide assembly. Specifically, after the central screw passes through the positioning hole in the curved base plate, it is locked from the bottom by the lower fastening nut. Then, the eccentric wheel is screwed into the central screw and adjusted to the desired height. Finally, the upper fastening nut presses the eccentric wheel down from the top, bringing its bottom into contact with the curved base plate. The bearing mounted on the eccentric wheel rotates with the edge banding, reducing travel resistance. When the guide position needs adjustment, the upper and lower fastening nuts can be loosened, the eccentric wheel rotated, and the nuts retightened after adjustment. Through the above technical solution, this application can ensure that the edge banding strip is stably conveyed along a predetermined path in the case of edge banding of sheet metal with limited internal space by adjusting the height limiting guide component, thereby avoiding the problem of guide failure caused by narrow space, and reducing the frictional loss between the edge banding strip and the guide structure.

[0030] Furthermore, a height limiting plate 1062 is provided at the top of the central screw, and a height limiting guide wheel 1063 is rotatably connected to the height limiting plate.

[0031] Specifically, the height restriction plate includes a plate body 10621, a central hole 10625 formed in the middle of the plate body to accommodate a central screw, an expansion joint 10622 provided on one side of the plate body, a through hole 10623 and a locking threaded hole respectively provided on both sides of the expansion joint, a bolt provided in the through hole, the bolt passing through the through hole and the expansion joint and then threaded into the locking threaded hole, a lower mounting plate 10624 formed at the bottom of the plate body, a pivot hole provided on the lower mounting plate, a pivot hole installed in the pivot hole, and a height restriction guide wheel rotatably connected to the pivot.

[0032] The height-limiting plate refers to a plate-like structure used to adjust the height of the guide wheels. It can be implemented using a metal plate with a central hole through which a central screw passes for height adjustment. The expansion joint refers to a slot structure created on the side of the plate, which can be formed by cutting. The lower mounting plate is a supporting structure located at the bottom of the plate, which can be welded to the plate. The pivot hole is used to install a pivot. The height-limiting guide wheels are rotatable roller structures, which can be implemented using bearings and pivots to guide the movement of the edge banding strip. Specifically, when the height of the height-limiting guide wheel needs to be adjusted, the bolts in the locking threaded holes can be loosened to change the width of the expansion joint. At this time, the diameter of the center hole of the plate changes accordingly, allowing the height-limiting plate to move up and down along the center screw. After adjustment, the bolts can be tightened again to fix the position of the height-limiting plate. Through the above technical solution, this application achieves stepless height adjustment of the guide wheel, which can adapt to the processing needs of edge banding strips of different heights. The cooperation structure between the height limit plate and the central screw ensures stability while allowing height adjustment to be completed through simple bolt tightening and loosening operations.

[0033] In some specific implementations, the width of the expansion joint can be 0.5-2mm, and the locking threaded hole can adopt a countersunk design to prevent the bolt from protruding. A copper sleeve can be installed inside the shaft hole as a bushing, for example, a copper sleeve with an outer diameter of 8mm and an inner diameter of 6mm is pressed into the shaft hole to extend the service life of the shaft. In at least one embodiment, the eccentric wheel includes a lower column 10641 and an upper hexagonal portion 10642, the lower column and the upper deformable portion being integrally formed, and a through eccentric hole 10643 being formed in the middle of the eccentric wheel. A bearing may be installed on the outer side of the eccentric wheel for adjusting the position of the edge banding.

[0034] The lower column refers to the cylindrical structure at the bottom of the eccentric wheel, which can be machined from metal to provide a contact support surface with the curved base plate. The upper hexagonal part refers to the hexagonal prism structure at the top of the eccentric wheel, which can be achieved using a hexagonal wrench to facilitate adjustment of the eccentric wheel angle via standard tools. One-piece molding means that the lower column and upper hexagonal part are formed as a single structure through casting or machining, which can be completed in one step using a CNC milling machine to ensure structural strength and avoid assembly errors. The through-hole refers to a through hole offset from the geometric center of the eccentric wheel, which can be machined by offsetting the central axis during drilling, used to accommodate the central screw and enable the eccentric wheel position adjustment function. Specifically, the eccentric wheel is fitted onto the central screw through a through-hole. When the upper hexagonal part is rotated, the eccentric wheel undergoes radial displacement around the axis of the central screw. Because the eccentric hole is off-center from the geometric center, the rotation of the eccentric wheel changes the contact position between its bottom and the curved base plate, thereby adjusting the width of the edge banding channel. This solution utilizes a through-hole and an integrally formed asymmetrical structure to generate controllable linear displacement when the eccentric wheel rotates, thereby expanding the adjustment dimension of the edge banding channel and adapting to the built-in edge banding requirements of different thicknesses or curvatures. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A guide groove for edge banding strips, characterized in that, It includes an arc-shaped base plate, on which an outer arc-shaped plate and an inner arc-shaped plate are formed, and a channel is formed between the outer arc-shaped plate and the inner arc-shaped plate to accommodate the edge banding strip passing through.

2. The edge banding guide groove according to claim 1, characterized in that, Connecting plates are formed on both sides of the arc-shaped base plate, and elongated holes are formed on the connecting plates.

3. The edge banding guide groove according to claim 1 or 2, characterized in that, The ends of the arc-shaped base plate are twisted upwards at an angle.

4. The edge banding guide groove according to claim 1 or 2, characterized in that, The arc-shaped bottom plate is twisted diagonally towards the glue pot assembly from bottom to top at the end closest to the glue pot assembly.

5. The edge banding guide groove according to claim 1, characterized in that, The entrance to the channel has a guide opening.

6. The edge banding guide groove according to claim 5, characterized in that, The outer arc-shaped plate forms an outer guide plate at its end, and the inner arc-shaped plate forms an inner guide plate at its end. The outer guide plate and the inner guide plate together form the guide opening.

7. The edge banding guide groove according to claim 1, characterized in that, At least one set of height-limiting guide components is formed on the arc-shaped base plate. The height-limiting guide components include a central screw. The arc-shaped base plate has a positioning hole for the central screw to pass through. An eccentric wheel is threadedly connected to the central screw. The bottom of the eccentric wheel abuts against the arc-shaped base plate. An upper fastening nut and a lower fastening nut are threadedly connected to the central screw. The lower fastening nut is located at the bottom of the arc-shaped base plate, and the upper fastening nut is located at the top of the eccentric wheel. Several bearings are rotatably connected to the eccentric wheel.

8. The edge banding guide groove according to claim 7, characterized in that, The top of the central screw is provided with a height limiting plate, and a height limiting guide wheel is rotatably connected to the height limiting plate.

9. The edge banding guide groove according to claim 8, characterized in that, The height restriction plate includes a plate body with a central hole in the middle to accommodate a central screw. An expansion joint is provided on one side of the plate body, and through holes and locking threaded holes are provided on both sides of the expansion joint. A bolt is provided in the through hole, and the bolt passes through the through hole and the expansion joint and is threaded into the locking threaded hole. A lower mounting plate is formed at the bottom of the plate body, and a pivot hole is provided on the lower mounting plate. A pivot is installed in the pivot hole, and a height restriction guide wheel is rotatably connected to the pivot.

10. The edge banding guide groove according to claim 7, characterized in that, The eccentric wheel includes a lower column and an upper hexagonal part. The lower column and the upper deformable part are integrally formed, and a through eccentric hole is formed in the middle of the eccentric wheel.

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