Special-shaped edge sealing machine for panel furniture processing

Abstract

The invention relates to the technical field of plate edge bonding machines, in particular to a special-shaped edge bonding machine for panel furniture processing, which comprises a box seat and a controller, a working table plate is arranged at the upper end of the box seat, and a free arm suction assembly for adsorbing and fixing a special-shaped plate is arranged at the side end of the working table plate; a discharging device is arranged at the rear end of the working table plate, an edge sealing pressing wheel assembly is arranged at the front end of the working table plate, and a feeding mechanism, a gluing mechanism, a belt shearing mechanism and a belt guiding wheel are sequentially arranged in the edge sealing belt conveying direction between the discharging device and the edge sealing pressing wheel assembly. According to the automatic edge banding device, the quality problems of virtual adhesion, later-stage falling and the like of the edge banding belt caused by insufficient pressure are fundamentally avoided, the edge banding consistency and reliability are remarkably improved, meanwhile, automatic edge banding of the edges of irregular-shaped plates can be effectively achieved, dependence on skilled workers is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate edge banding machines, in particular to a special-shaped edge banding machine for plate furniture processing. BACKGROUND

[0002] Plate edge banding is a key process in plate furniture processing, which serves to protect the plate section, improve aesthetics, and prevent the release of harmful substances. Currently, the mainstream edge banding equipment on the market is mainly linear edge banding machines and some edge banding machines that can handle standard circular arc edges. Such equipment usually cooperates with process units such as tape feeding, glue application, pressing, cutting, and edge trimming to achieve efficient and continuous edge banding of rectangular plate straight edges or fixed radius arc edges. However, for irregularly shaped special-shaped plates, existing edge banding equipment often cannot achieve fully automated high-quality edge banding, and most still rely on semi-automatic operation to ensure edge banding effect.

[0003] For example, the invention application with application number 201910797654.4 discloses an automatic curve edge banding machine, which includes a machine body, a curve edge banding mechanism, a vacuum chuck rotating arm mechanism, an edge trimming mechanism, and an electric control box. The curve edge banding mechanism includes an edge banding workbench, a drive box, an edge banding tape conveying assembly, a glue application assembly, an edge banding tape cutting assembly, and a plate conveying assembly. The edge banding workbench is arranged at the first end of the machine body, the drive box is arranged at one side of the edge banding workbench, the edge banding tape conveying assembly is arranged above the drive box, the glue application assembly is arranged at one side of the edge banding tape conveying assembly, the edge banding tape cutting assembly is arranged at one side of the glue application assembly, and the plate conveying assembly is arranged above the edge banding workbench. Although this equipment can automatically edge band special-shaped plates, the pressing pressure between the edge banding tape and the plate side edge is difficult to maintain stable and consistent during the edge banding process. If the pressure is too small and not detected in time, the edge banding tape is prone to fall off from the plate section during long-term use, resulting in product quality problems. Therefore, the present application proposes a special-shaped edge banding machine for plate furniture processing that can effectively ensure the stability of the edge banding pressure. SUMMARY

[0004] The purpose of the present application is to provide a special-shaped edge banding machine for plate furniture processing to solve the problem that existing automatic curve edge banding machines cannot guarantee that the pressing pressure during the edge banding process of special-shaped plates is difficult to maintain stable and consistent, thereby causing subsequent product quality problems.

[0005] The present application is achieved by the following technical solutions: The utility model provides a special-shaped edge banding machine for panel furniture processing, which comprises a box seat and a controller, the upper end of the box seat is provided with a workbench plate, the side end of the workbench plate is provided with a free arm suction material assembly for adsorbing and fixing a special-shaped plate, the rear end of the workbench plate is provided with a discharging device, the front end of the workbench plate is provided with an edge banding pressure wheel assembly, a feeding mechanism, a gluing mechanism, a tape cutting mechanism and a tape guide wheel are sequentially arranged along the conveying direction of the edge banding tape between the discharging device and the edge banding pressure wheel assembly. The discharging device comprises a material disc shaft for supporting an edge banding tape material disc and a stop mechanism for locking the rotation of the material disc shaft, and the actuating component in the stop mechanism is electrically connected with the controller, the edge banding pressure wheel assembly comprises a sliding block slidingly arranged along a strip-shaped groove on the workbench plate, the sliding block is rotatably provided with an edge banding pressure wheel protruding from the upper surface of the workbench plate, a second spring is connected to the sliding block, the end of the second spring is connected with a pressure sensor on the rear end wall of the strip-shaped groove, and the pressure sensor and the feeding motor in the feeding mechanism are electrically connected with the controller.

[0006] As a further arrangement of the above-mentioned scheme, the rear end of the workbench plate is provided with a material disc rotation support plate, the material disc shaft is rotatably arranged on the material disc rotation support plate, the stop mechanism comprises a gear connected to the lower end of the material disc shaft and a fixedly arranged U-shaped strip, the U-shaped strip is connected with a stop rack movable forward and backward and acting on the gear through a guide rod and a first spring, and the actuating component is arranged on the U-shaped strip for driving the stop rack to perform corresponding actions.

[0007] As a further arrangement of the above-mentioned scheme, the actuating component comprises an electromagnet fixed to the U-shaped strip, and the stop rack is provided with a permanent magnet aligned with the electromagnet.

[0008] As a further arrangement of the above-mentioned scheme, the free arm suction material assembly comprises a first rotating arm rotatably connected with a stand, the free end of the first rotating arm is rotatably connected with a second rotating arm, and the distal end of the second rotating arm is fixedly provided with a vacuum suction disc.

[0009] As a further arrangement of the above-mentioned scheme, the feeding mechanism comprises a first support fixed to the workbench plate, a pair of clamping wheels are rotatably arranged in the first support, and the upper end of the first support is provided with a feeding motor for driving the pair of clamping wheels to synchronously and reversely rotate.

[0010] As a further arrangement of the above-mentioned scheme, the gluing mechanism comprises a second support fixed to the workbench plate, a glue applying wheel is rotatably arranged in the second support and in contact with the side surface of the edge banding tape, the upper end of the glue applying wheel is connected with a glue applying motor, a glue outlet corner box is arranged in the second support away from the side of the edge banding tape, an arc-shaped glue outlet is formed in the glue outlet corner box and faces the glue applying wheel, and the glue outlet corner box is connected with a glue liquid heat preservation box through a glue conveying pipe and a glue conveying pump.

[0011] As a further arrangement of the above-mentioned scheme, the band cutting mechanism comprises a fixed blade block and a movable blade block arranged oppositely, and a telescopic driving member is fixed on the workbench plate for driving the movable blade block to move.

[0012] As a further arrangement of the above-mentioned scheme, a buffer adjusting mechanism for the edge band is arranged on the path between the discharging device and the feeding mechanism, the buffer adjusting mechanism comprises a swing arm hinged to the workbench plate by a torsion spring, and a rotating wheel arranged at the free end of the swing arm for guiding the edge band.

[0013] Compared with the prior art, the present application has the following beneficial effects: The special-shaped plate edge banding machine disclosed by the present application can monitor the pressure value in the edge banding and pressing process in real time through the design of the edge band pressing wheel assembly with pressure detection and the discharging device with a stop mechanism. Once the pressure is lower than the preset threshold value for ensuring the bonding quality, the controller immediately stops feeding and locks the material disc, thereby forcibly interrupting the edge banding process. This mechanism fundamentally avoids quality problems such as virtual bonding and later falling of the edge band caused by insufficient pressure, and significantly improves the consistency and reliability of edge banding.

[0014] When the system triggers protection due to insufficient pressure, the special-shaped plate edge banding machine disclosed by the present application can provide direct tactile or visual feedback to the operator through the stop of the belt feeding and the locking of the material disc, so that the operator can immediately perceive the abnormality and resume normal operation by simply increasing the pushing force, making the human-machine interaction intuitive and efficient, and effectively reducing the output of defective products.

[0015] Through the design of the free arm material suction assembly, the operator can flexibly and stably position and move the special-shaped plate, and in combination with the continuous belt feeding, glue coating and pressing processes, the special-shaped plate edge banding machine disclosed by the present application effectively realizes automatic edge banding of the irregularly shaped plate edge, reduces the dependence on skilled workers, and improves the production efficiency.

[0016] The further added edge band buffer adjusting mechanism can absorb the instantaneous tension on the edge band by releasing the buffer section at the moment when the protective locking occurs, effectively preventing the edge band from being pulled off or damaged, and avoiding downtime cleaning and rethreading time caused by broken belt, thereby improving the stability and production efficiency of continuous operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any inventive labor.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle; Figure 2 This is a schematic diagram of the second-angle three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the workbench and its attached components in this invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 5 This is a three-dimensional structural diagram of the unloading device with a stop mechanism in this invention from a first angle. Figure 6 This is a two-dimensional structural diagram of the unloading device with a stop mechanism in this invention from a second angle. Figure 7 This is a schematic diagram of the layout of the gluing mechanism in this invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-7 This application will be described in detail with reference to the embodiments. Example 1

[0021] Example 1 discloses a non-circular edge banding machine for panel furniture processing, see attached figure. Figure 1 and attached Figure 2 The system includes a base 10, on the upper surface of which a base block 11 is fixedly mounted. A worktable 12, serving as the main working platform, is mounted on the upper end of the base block 11. The left side of the worktable 12 extends outward and is fixedly connected to the bottom base 10 via a column 13.

[0022] A free arm suction assembly 20 is rotatably installed on the column 13, which is used to flexibly take, place and position the profiled plate 200 to be edge sealed. The free arm suction assembly 20 specifically comprises a first rotating arm 21 rotatably connected with the column 13, a second rotating arm 22 hingedly connected with the free end of the first rotating arm 21 through a pin shaft, and a vacuum suction cup 23 fixedly installed at the end of the second rotating arm 22 and arranged upward. The vacuum suction cup 23 is in communication with an external negative pressure system (not shown in the figure) through a flexible pipeline, so as to reliably adsorb and fix the profiled plate 200 placed thereon, and the operator can flexibly adjust the position and attitude of the plate through the rotating arm.

[0023] Reference is made to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 A material disc rotating support plate 14 extending horizontally rearward is connected with the rear end of the workbench plate 12, and a discharging device 30 with a stop function is installed on the material disc rotating support plate 14. The core of the discharging device 30 comprises a material disc shaft 301 rotatably installed on the support plate 14, the upper end of the material disc shaft 301 is used to support a roll-shaped edge sealing tape material disc 300, and the lower end of the material disc shaft 301 is fixedly installed with a gear 302. Then a U-shaped mounting strip 303 is fixed on the rear side of the base block 11, a stop rack 304 slidable forward and backward is arranged at the rear of the U-shaped strip 303, and the tooth surface of the stop rack 304 is arranged opposite to the gear 302. Specifically, the two ends of the stop rack 304 are penetrated through the U-shaped strip 303 through guide rods 305 to realize guided sliding, and then a first spring 306 is installed between the U-shaped strip 303 and the stop rack 304, which pulls the stop rack 304 away from the gear 302 in the normal state.

[0024] In addition, a permanent magnet block 307 is embedded on the stop rack 304, and a electromagnet 308 is installed on the U-shaped strip 303 opposite to the permanent magnet block 307. The electromagnet 308 is electrically connected with a controller 50 arranged on the workbench plate 12. When the controller 50 issues an instruction, the electromagnet 308 generates a magnetic force repelling the permanent magnet block 307 after being electrified, which can drive the stop rack 304 to move rearward against the elastic force of the first spring 306, and engage and lock with the gear 302, so as to instantaneously lock the material disc shaft 301 and the edge sealing tape material disc 300, and stop the tape discharging.

[0025] In order to monitor the edge sealing pressure in real time, reference is made to the accompanying drawings Figure 2 and the accompanying drawings Figure 4A strip-shaped slot 121 is formed on the front end of the upper surface of the workbench plate 12 and extends in the front-rear direction. A sealing edge pressing wheel assembly 40 with pressure detection is arranged in the strip-shaped slot 121. The assembly includes a sliding block 401 that can slide in the strip-shaped slot 121 in the front-rear direction, and the upper portion of the sliding block 401 is rotatably connected to a sealing edge pressing wheel 402 that extends above the workbench plate 12. The rear end of the sliding block 401 is connected to a second spring 403, and the other end of the second spring 403 acts on the detection surface of a pressure sensor 404 fixedly arranged on the rear end wall of the strip-shaped slot 121. Then, the pressure sensor 404 is electrically connected to the controller 50, so that it can convert the detected real-time pressure signal into an electrical signal and transmit it to the controller 50. Meanwhile, the controller 50 is pre-set with a threshold range of qualified sealing edge pressing force for real-time comparison and judgment.

[0026] Reference is made to the accompanying drawings Figure 3 Along the conveying path of the sealing edge strip 100, and on the workbench plate 12 between the sealing edge pressing wheel assembly 40 and the discharging device 30, a feeding mechanism 60, a gluing mechanism 70, a strip cutting mechanism 80, and a guide strip wheel 15 are arranged in sequence.

[0027] The feeding mechanism 60 includes a first support 601 fixed to the workbench plate 12. Two engaging wheels 602 are rotatably arranged in parallel in the first support 601, and the gap between the two engaging wheels 602 is just enough to allow the sealing edge strip 100 to pass through. Meanwhile, two feeding motors 603 are arranged on the top of the first support 601, and each feeding motor 603 drives one engaging wheel 602 through a transmission mechanism. During operation, the two feeding motors 603 are synchronously operated in reverse, thereby driving the engaging wheels 602 to clamp and uniformly push the sealing edge strip 100.

[0028] The gluing mechanism 70 is located downstream of the feeding mechanism 60 and includes a second support 701 fixed to the workbench plate 12. A glue applying wheel 702 is rotatably arranged in the second support 701, and the surface of the glue applying wheel 702 is in contact with the side of the sealing edge strip 100 to be coated with glue. The glue applying wheel 702 is driven to rotate by a glue applying motor 703 arranged on the top of the second support 701. An out-glue corner box 704 is arranged on the side of the second support 701 away from the sealing edge strip 100, and an arc-shaped out-glue port is formed on the side of the out-glue corner box 704 close to the glue applying wheel 702, so that the hot melt glue can be uniformly coated on the surface of the rotating glue applying wheel 702. The other side of the out-glue corner box 704 is connected to a glue conveying pipe 705. The entire glue supply system further includes a glue liquid heat preservation box 706 arranged on the side of the bottom box seat 10, which is used to store and maintain the activity of the glue liquid at a constant temperature. The glue liquid heat preservation box 706 is provided with a glue conveying pump 707, and the discharge port of the glue conveying pump 707 is connected to the out-glue corner box 704 through the glue conveying pipe 705, and the inlet port of the glue conveying pump 707 is connected to the inside of the glue liquid heat preservation box 706 through a pipeline.

[0029] The cutting mechanism 80 is located downstream of the gluing mechanism 70, and is used to cut the sealing tape 100 at the end of the sealing process. The cutting mechanism 80 includes a fixed blade block 801 and a movable blade block 802 located on both sides of the sealing tape 100 path, respectively. The movable blade block 802 is connected to the piston rod of a telescopic drive 803 (such as a pneumatic cylinder or an electric push rod), and the telescopic drive 803 is fixed to a nearby fixed plate. When cutting is needed, the telescopic drive 803 pushes the movable blade block 802 to move towards the fixed blade block 801, and together they complete the cutting of the sealing tape 100.

[0030] In the use of the special-shaped sealing machine disclosed in Embodiment 1, the operator first places the special-shaped plate 200 on the vacuum chuck 23 and starts the vacuum adsorption fixation. Then, the operator manually adjusts the special-shaped plate 200 so that the side edge to be sealed approaches the sealing pressure wheel 402 and contacts the end of the sealing tape 100 that is pre-guided.

[0031] Next, the operator steps on the foot switch (not shown in the figure), and the device starts to work. The feeding mechanism 60 starts to work and uniformly pulls out the sealing tape 100 from the tray 300. When the sealing tape 100 passes through the gluing mechanism 70, the glue wheel 702 uniformly applies hot melt adhesive to one side of the sealing tape 100. The sealing tape 100 after being coated with glue is guided by the guide wheel 15 and continuously conveyed to the sealing pressure wheel 402.

[0032] The operator pushes the special-shaped plate 200 along the predetermined path, and the side edge of the special-shaped plate 200 is pressed and bonded with the coated sealing tape 100 at the sealing pressure wheel 402, completing the sealing. In this process, the special-shaped plate 200 generates a reverse thrust on the sealing pressure wheel 402, pushing the sliding block 401 to compress the second spring 403. The pressure of the second spring 403 is transmitted to the pressure sensor 404 in real time. The controller 50 continuously monitors the signal of the pressure sensor 404. If the detected pressure value is lower than the pre-set qualified threshold value, it indicates that the pressing force is insufficient and there is a risk of glue opening. At this time, the controller 50 will immediately execute the protection program, on the one hand, stop the feeding motor 603 in the feeding mechanism 60, on the other hand, instantaneously power the electromagnet 308 to generate a magnetic force to push the stop rack 304 forward and be locked with the gear 302, locking the tray. In this process, the sealing tape 100 stops conveying, and the operator will immediately feel the increased resistance or the stop of the tape feeding, realizing the insufficient pressure.

[0033] Subsequently, the operator will slightly increase the force to push the special-shaped plate 200, so that the pressure returns to normal. When the pressure sensor 404 detects that the pressure has risen above the threshold value, the controller 50 can automatically release the stop state, and the device returns to normal operation. Through the design of this mechanism, Embodiment 1 effectively prevents invalid sealing under insufficient pressure, ensuring the reliability of the sealing quality. Embodiment 2

[0034] The embodiment 2 discloses an irregular edge banding machine for processing plate furniture, which is based on the technical scheme in the embodiment 1 and is improved and designed.

[0035] The embodiment 2 is different from the embodiment 1 in that a set of edge band buffering and adjusting mechanism 90 is additionally arranged on the edge band path between the unloading device 30 and the feeding mechanism 60. The main purpose of the mechanism is to avoid that the edge band 100 is pulled off or damaged due to the excessive instantaneous tension caused by the plate still in motion or the improper operation of the operator when the unloading device 30 is suddenly locked due to the lack of pressure protection.

[0036] Specifically referring to Figures 1-3 The edge band buffering and adjusting mechanism 90 comprises a swing arm 901. One end of the swing arm 901 is hingedly installed on the upper surface of the workbench plate 12 through a pin shaft and a torsional spring 902, so that the swing arm 901 can freely swing within a certain angle. The other end of the swing arm 901 is provided with a freely rotatable rotating wheel 903, and the edge band 100 passes through the rotating wheel.

[0037] In the normal feeding state of the embodiment 2, the tension of the edge band 100 is moderate, the swing arm 901 is kept in a balanced position under the action of the torsional spring 902, and a relaxed buffer section of the edge band 100 is provided. When the unloading device 30 is suddenly locked and the feeding mechanism 60 has stopped, if the plate continues to move due to inertia or artificial pushing force, the edge band 100 will be pulled. At this time, the tension on the edge band 100 increases, thereby pulling the rotating wheel 903, so that the swing arm 901 swings against the torsional spring force, releases the length of the edge band 100 stored in the buffer section, effectively absorbs the instantaneous tension, and avoids that the edge band 100 is broken due to the overload stress.

[0038] When the tension is removed or restored to normal, the torsional spring 902 will reset the swing arm 901 to re-tension the edge band 100 path. The embodiment 2 significantly improves the reliability and fault tolerance of the equipment under abnormal working conditions through the buffering mechanism 90, protects the edge band material, and reduces the material breakage and equipment restart time caused by protective shutdown.

[0039] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A profiled edge banding machine for processing panel furniture, comprising a base and a controller, wherein a worktable is provided at the upper end of the base, and a free-arm suction assembly for adsorbing and fixing profiled panels is provided at the side end of the worktable, characterized in that, The rear end of the workbench is provided with a material unloading device, and the front end of the workbench is provided with an edge sealing roller assembly. Along the edge sealing belt conveying direction between the material unloading device and the edge sealing roller assembly, a feeding mechanism, a gluing mechanism, a belt cutting mechanism and a guide roller are arranged in sequence. The unloading device includes a tray shaft for holding the edge-sealing tape tray and a stop mechanism for locking the tray shaft to rotate. The actuating component in the stop mechanism is electrically connected to the controller. The edge-sealing pressure roller assembly includes a sliding block that slides back and forth along the strip groove on the worktable. An edge-sealing pressure roller that extends out of the upper surface of the worktable is rotatably disposed in the sliding block. A second spring is connected to the sliding block. The end of the second spring is connected to a pressure sensor on the rear end wall of the strip groove. The pressure sensor and the feeding motor in the feeding mechanism are both electrically connected to the controller.

2. The irregular edge banding machine for panel furniture processing according to claim 1, characterized in that, The rear end of the worktable is provided with a material tray rotation support plate, the material tray shaft is rotatably mounted on the material tray rotation support plate, the stop mechanism includes a gear connected to the lower end of the material tray shaft and a fixed U-shaped bar, the U-shaped bar is connected to a stop rack that can move back and forth and interacts with the gear through a guide rod and a first spring, and the actuating component is provided on the U-shaped bar to drive the stop rack to perform corresponding actions.

3. The irregular edge banding machine for panel furniture processing according to claim 2, characterized in that, The actuating component includes an electromagnet fixed to a U-shaped bar, and a permanent magnet aligned with the electromagnet is provided on the stop rack.

4. The irregular edge banding machine for panel furniture processing according to claim 1, characterized in that, The free-arm suction assembly includes a first rotating arm rotatably connected to the column, a second rotating arm rotatably connected to the free end of the first rotating arm, and a vacuum suction cup fixedly installed at the end of the second rotating arm.

5. The irregular edge banding machine for panel furniture processing according to claim 1, characterized in that, The feeding mechanism includes a first bracket fixed to the workbench, a pair of meshing wheels rotatably disposed in the first bracket, and a feeding motor for driving the pair of meshing wheels to rotate synchronously in opposite directions at the upper end of the first bracket.

6. The irregular edge banding machine for panel furniture processing according to claim 1, characterized in that, The gluing mechanism includes a second bracket fixed to the workbench. A gluing wheel that rotatably contacts the side of the edge banding is rotatably mounted in the second bracket. A gluing motor is connected to the upper end of the gluing wheel. A glue outlet box is provided in the second bracket on the side away from the edge banding, and an arc-shaped glue outlet facing the gluing wheel is opened on the glue outlet box. The glue outlet box is connected to a glue liquid heat preservation tank through a glue delivery pipe and a glue delivery pump.

7. The irregular edge banding machine for panel furniture processing according to claim 1, characterized in that, The tape cutting mechanism includes a fixed cutting edge block and a movable cutting edge block arranged opposite to each other, and a telescopic drive component for driving the movable cutting edge block to move is fixed on the worktable.

8. The irregular edge banding machine for panel furniture processing according to any one of claims 1 to 7, characterized in that, An edge sealing tape buffer adjustment mechanism is provided on the edge sealing tape path between the unloading device and the feeding mechanism. The buffer adjustment mechanism includes a swing arm hinged to the worktable by a torsion spring and a wheel provided at the free end of the swing arm for guiding the edge sealing tape.

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