Plate edge sealing strip and laser edge sealing process

Abstract

The invention discloses a plate edge sealing strip and a laser edge sealing process. The plate edge sealing strip comprises a base material layer, a transparent layer and a hot melt adhesive layer, wherein the transparent layer is laminated on one side of the base material layer; the hot melt adhesive layer is laminated on one side, back to the base material layer, of the transparent layer; a first groove is formed in the base material layer in the length direction of the base material layer. Light splitting units are reversely and uniformly distributed in the first groove along the length direction of the first groove; in the laminating process, laser beams emitted into the edge sealing strip are projected to the hot melt adhesive layer through the light splitting unit, so that the hot melt adhesive layer is heated, the heating process and the laminating process are synchronously carried out, and the hot melt adhesive layer is in a closed state in the heating process, so that the heat loss is reduced, the heating effect can be ensured, and the laminating efficiency is improved. And the laser irradiation power is reduced, so that the effect of reducing energy consumption is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of edge banding strips, and in particular to a plate edge banding strip and a laser edge banding process. Background Art

[0002] Existing laser edge banding strips all attach a hot melt adhesive layer to one side of the edge banding strip. During attachment, an external laser projects a laser beam onto the hot melt adhesive layer of the edge banding strip to heat the hot melt adhesive, causing the hot melt adhesive to melt and become sticky.

[0003] This external laser irradiation method is limited by the laser irradiation angle. The laser irradiation melting process of the hot melt adhesive and the attachment process of the edge banding are carried out independently. Since there is a certain time difference between the melting of the hot melt adhesive and the completion of the attachment, and the hot melt adhesive is in an open state during the melting process, a large amount of heat is lost. Therefore, under the premise of ensuring the heating effect of the hot melt adhesive, the laser irradiation power needs to be greater, resulting in high energy consumption. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a plate edge banding strip and a laser edge banding process, which can reduce the laser irradiation power while ensuring the heating effect, thereby achieving the effect of reducing energy consumption.

[0005] To achieve the above object, the specific scheme of the present invention is as follows: A first aspect of the present invention provides a board edge banding strip, comprising a substrate layer, a transparent layer stacked on one side of the substrate layer, and a hot melt adhesive layer stacked on the side of the transparent layer facing away from the substrate layer; The substrate layer is provided with a first groove along its length direction; and light splitting units are evenly distributed in the first groove in the reverse direction along its length.

[0006] The present invention further comprises a spectroscopic unit comprising a spectroscopic bracket, a spectroscope rotatably arranged on the spectroscopic bracket and a first permanent magnet slidably arranged on the spectroscopic bracket; the spectroscope is provided with a reflective layer; the first permanent magnet is transmission-connected to the spectroscope to drive the spectroscope to flip.

[0007] The present invention further comprises: rotating shafts at both ends of the spectroscope; the rotating shaft is rotatably connected to the spectroscope bracket; second grooves are respectively provided at the two ends of the spectroscope bracket corresponding to the positions of the rotating shaft; a vortex surface centered on the rotating shaft is provided on the side of the second groove away from the rotating shaft; a spring sheet is provided in the second groove; one end of the spring sheet is fixedly connected to the rotating shaft; one end of the spring sheet is provided with a locking portion abutting against the vortex surface; and a locking groove is provided at the small-diameter end of the vortex surface.

[0008] In the present invention, both ends of the beam splitter are eccentrically provided with eccentric shafts; both ends of the first permanent magnet are provided with hinge shafts; and a connecting rod is hinged between the hinge shaft and the corresponding eccentric shaft.

[0009] In the present invention, the beam splitter is a four-prism structure made of a transparent material; one of the prism surfaces of the beam splitter is a convex structure, and the reflective layer is coated on the convex structure.

[0010] In the present invention, a sliding hole is further provided through the light splitting bracket, and the first permanent magnet is slidably installed in the sliding hole.

[0011] The second aspect of the present invention provides a laser edge banding process, comprising a pressing device, a laser generating device and the plate edge banding strip as described above; the pressing device comprises a second permanent magnet; the polarity of the second permanent magnet is opposite to that of the first permanent magnet; The process comprises the following steps: The edge banding strip of the plate is passed through the pressing device, and the hot melt adhesive layer is attached to the bonding surface of the external plate; the laser generating device is connected to one end of the edge banding strip of the plate; the reflective layer faces the laser generating device; The laser beam generated by the laser generating device is projected onto the reflective layer of the light splitting unit, and then projected onto the hot melt adhesive layer after being reflected by the reflective layer; The pressing device is moved along the external plate, and the first permanent magnet slides due to the adsorption of the second permanent magnet and drives the beam splitter to flip; When the second permanent magnet faces the first permanent magnet, the reflective layer completely faces the hot-melt adhesive layer.

[0012] The present invention further comprises a pressing device which further comprises a pressing seat and a feeding roller rotatably arranged in the pressing seat; The second permanent magnet is arranged in the pressing seat, and the pressing seat is provided with a through hole at a position corresponding to the feeding roller away from the second permanent magnet; the pressing seat is provided with a pressing plate below the inclined surface of the second permanent magnet.

[0013] The present invention further comprises that the bottom surface of the second permanent magnet is an inclined surface; the distance between the end of the bottom surface of the second permanent magnet close to the punching hole and the pressing plate is greater than the distance between the end of the bottom surface of the second permanent magnet away from the punching hole and the pressing plate.

[0014] The beneficial effects of the present invention are as follows: during bonding, the present invention projects the laser beam injected into the edge banding strip onto the hot melt adhesive layer through the beam splitting unit, thereby heating the hot melt adhesive layer, achieving the goal that the heating process and the bonding process are carried out simultaneously, and the hot melt adhesive layer is in a closed state during the heating process, thereby reducing heat loss. While ensuring the heating effect, the laser irradiation power can be reduced, thereby achieving the effect of reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional diagram of the edge banding strip of the board of the present invention; Figure 2 is an exploded schematic diagram of the plate edge banding strip of the present invention; Figure 3 It is a structural schematic diagram of the light splitting unit of the present invention; Figure 4 is an exploded schematic diagram of the light splitting unit of the present invention; Figure 5 It is a schematic diagram of the structure of the light splitting unit of the present invention when the locking portion and the locking groove cooperate; Figure 6 It is a structural schematic diagram of the light splitting unit of the present invention after the light splitting bracket is hidden; Figure 7 is a flow chart of the laser edge sealing process of the present invention; Figure 8 It is a schematic diagram of the use of the laser edge sealing process of the present invention; Fig. 9 It is a structural schematic diagram of the pressing device of the present invention; Fig.10 is a cross-sectional schematic diagram of the pressing device of the present invention; Explanation of the reference numerals in the accompanying drawings: 11. substrate layer; 111. first groove; 12. transparent layer; 13. hot melt adhesive layer; 14. spectrometer unit; 141. spectrometer bracket; 1411. second groove; 1412. vortex surface; 1413. locking groove; 1414. sliding hole; 142. spectrometer; 1421. rotating shaft; 1422. eccentric shaft; 143. first permanent magnet; 1431. hinge shaft; 144. reflecting layer; 145. spring; 1451. locking part; 146. connecting rod; 21. pressing seat; 211. feeding hole; 22. feeding roller; 23. second permanent magnet; 24. pressing plate; 3. laser generating device. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0017] like Figures 1 to 6 As shown, a plate edge banding strip described in this embodiment includes a substrate layer 11; a first groove 111 is opened on one side of the substrate layer 11 along its length direction; a splitter unit 14 is evenly distributed in the first groove 111 along its length in the reverse direction; the first groove 111 is provided to facilitate the installation of the splitter unit 14; a transparent layer 12 is stacked on one side of the substrate layer 11; the transparent layer 12 covers the opening position of the first groove 111, thereby covering the splitter unit 14; a hot melt adhesive layer 13 is stacked on the side of the transparent layer 12 facing away from the substrate layer 11.

[0018] In this embodiment, a plurality of light splitting units 14 are arranged inside the edge banding strip, so that during bonding, the laser beam injected into the edge banding strip is projected onto the hot melt adhesive layer 13 through the light splitting unit 14, so that the hot melt adhesive layer 13 is heated, so that the heating process and the bonding process are carried out synchronously, and the hot melt adhesive layer 13 is in a closed state during the heating process, thereby reducing heat loss. While ensuring the heating effect, the laser irradiation power can be reduced, thereby achieving the effect of reducing energy consumption.

[0019] like Figures 3 to 6 As shown, a plate edge banding strip described in this embodiment, in some embodiments, the spectrometer unit 14 includes a U-shaped spectrometer bracket 141, a spectrometer 142 rotatably mounted on the spectrometer bracket 141 and a first permanent magnet 143 slidably mounted on the spectrometer bracket 141; the spectrometer 142 is provided with a reflective layer 144; the first permanent magnet 143 is transmission-connected to the spectrometer 142 to drive the spectrometer 142 to flip.

[0020] Specifically, initially, the reflective layer 144 faces the projection direction of the laser beam; when the laser beam is irradiated into the edge banding strip, the reflective layer 144 reflects the laser beam and then projects it through the transparent layer 12 onto the hot melt adhesive layer 13, thereby heating the hot melt adhesive layer 13; when driving the first permanent magnet 143 to slide relative to the spectroscopic bracket 141, the first permanent magnet 143 drives the spectroscope 142 to flip, thereby changing the reflection angle of the reflective layer 144, so that the light spot projected onto the hot melt adhesive layer 13 moves along the hot melt adhesive layer 13, and heats the hot melt adhesive layer 13, so that the hot melt adhesive melts and then bonds and fixes the edge banding strip to the surface to be bonded, until the spectroscope 142 drives the reflective layer 144 to flip so that the reflective layer 144 is completely facing the hot melt adhesive layer 13, and the laser beam penetrates the spectroscope 142 and is projected onto the reflective layer 144 of the next spectroscopic unit 14, thereby heating the next section of the hot melt adhesive layer 13, and so on, until the bonding of the edge banding strip is completed.

[0021] like Figures 3 to 6 As shown, in this embodiment, the beam splitter 142 is a four-prism structure made of transparent material; one of the prism surfaces of the beam splitter 142 is a convex structure, and the convex structure is coated with a reflective layer 144; by setting the convex surface, the spot of the laser beam projected on the hot melt adhesive layer 13 is larger, so that the hot melt adhesive layer 13 is heated more evenly.

[0022] For example, Figures 3 to 6 As shown, the beam splitter bracket 141 is penetrated by a sliding hole 1414 , and the first permanent magnet 143 is slidably installed in the sliding hole 1414 , so that the first permanent magnet 143 can be fully affected by the magnetic field to drive the beam splitter 142 to flip.

[0023] like Figures 3 to 6As shown, in the present embodiment, a plate edge banding strip is provided with a rotating shaft 1421 at both ends of the beam splitter 142; the rotating shaft 1421 is rotatably connected to the beam splitter bracket 141; second grooves 1411 are respectively provided at the two ends of the beam splitter bracket 141 corresponding to the positions of the rotating shaft 1421; a vortex surface 1412 centered on the rotating shaft 1421 is provided on the side of the second groove 1411 away from the rotating shaft 1421; a spring piece 145 is provided in the second groove 1411; the second groove 1411 is provided with a second groove 1411; the second groove 1411 is provided with a second groove 1411, so as to provide a movable space for the spring piece 145; one end of the spring piece 145 is fixedly connected to the rotating shaft 1421; one end of the spring piece 145 is provided with a locking portion 1451 abutting against the vortex surface 1412; a locking groove 1413 is provided at the small diameter end of the vortex surface 1412; the locking groove 1413 is used to lock the spring piece 145. The small diameter end of the vortex surface 1412 is the end of the vortex surface 1412 that is closer to the rotation shaft 1421 , and the large diameter end of the vortex surface 1412 is the end of the vortex surface 1412 that is closer to the rotation shaft 1421 .

[0024] Specifically, when the first permanent magnet 143 slides, the first permanent magnet 143 drives the beam splitter 142 to flip, and the rotating shaft 1421 of the beam splitter 142 drives the spring 145 to swing in the second groove 1411, and the locking portion 1451 of the spring 145 moves from the large diameter end of the vortex surface 1412 to the small diameter end of the vortex surface 1412, so that the light spot projected onto the hot melt adhesive layer 13 moves along the hot melt adhesive layer 13 to perform Sufficient heating is performed to improve the bonding effect; when the locking portion 1451 is embedded in the locking groove 1413, the locking groove 1413 cooperates with the locking portion 1451 to lock the spring 145, and lock the beam splitter 142 and the beam splitter bracket 141 as a whole. At this time, the beam splitter 142 is flipped into place, and the reflective layer 144 is completely facing the hot melt adhesive layer 13. The laser beam penetrates the beam splitter 142 and irradiates the beam splitter 142 of the next beam splitter unit 14.

[0025] like Figure 4 and Figure 6 As shown, in the present embodiment, a plate edge banding strip is described. In some embodiments, both ends of the beam splitter 142 are eccentrically provided with eccentric shafts 1422; both ends of the first permanent magnet 143 are provided with hinge shafts 1431; and a connecting rod 146 is hinged between the hinge shaft 1431 and the corresponding eccentric shaft 1422.

[0026] Specifically, when the first permanent magnet 143 slides, the first permanent magnet 143 drives the beam splitter 142 to flip around the rotating shaft 1421 through the connecting rod 146, thereby automatically adjusting the reflection angle of the reflection layer 144 and further adjusting the light spot position.

[0027] like Figures 1 to 10As shown, this embodiment also provides a laser edge banding process, including a pressing device, a laser generating device 3 and the plate edge banding strip as described above; the pressing device includes a second permanent magnet 23; the polarity of the second permanent magnet 23 is opposite to the polarity of the first permanent magnet 143; The process specifically comprises the following steps: Step S1: insert the edge banding strip of the plate into the laminating device, and make the hot melt adhesive layer 13 adhere to the bonding surface of the external plate; connect the laser generating device 3 with one end of the edge banding strip of the plate; the reflective layer 144 of each splitting unit 14 faces the laser generating device 3; thus, the preparation work for the bonding of the edge banding strip is completed; Step S2: Projecting the laser beam generated by the laser generating device 3 onto the reflective layer 144 of the light splitting unit 14, and projecting the laser beam onto the hot melt adhesive layer 13 after being reflected by the reflective layer 144; thereby heating the hot melt adhesive layer 13, so that the hot melt adhesive melts and the edge banding strip is bonded and fixed to the surface to be bonded; Step S3: Move the pressing device along the external plate, and the first permanent magnet 143 slides due to the adsorption of the second permanent magnet 23 and drives the beam splitter 142 to flip; specifically, the pressing device is moved along the length direction of the bonding surface of the external plate, and during the movement, the first permanent magnet 143 slides relative to the beam splitter bracket 141 due to the magnetic adsorption of the second permanent magnet 23, and the first permanent magnet 143 synchronously drives the beam splitter 142 to flip, so that the reflection angle of the reflection layer 144 changes, thereby adjusting the position of the light spot projected by the laser beam on the hot melt adhesive layer 13, so that the light spot moves with the pressing device, thereby heating the hot melt adhesive layer 13, so that the hot melt adhesive melts and the edge banding strip is bonded and fixed to the surface to be bonded; Step S4: When the second permanent magnet 23 is facing the first permanent magnet 143, the reflective layer 144 is completely facing the hot melt adhesive layer 13; specifically, as the pressing device drives the second permanent magnet 23 to move, when the second permanent magnet 23 is facing the first permanent magnet 143, the beam splitter 142 is brought to the reflective layer 144 and flipped so that the reflective layer 144 is completely facing the hot melt adhesive layer 13; at this time, the locking portion 1451 of the spring 145 is inserted into the locking groove 1413, locking the beam splitter 142 and the beam splitter bracket 141 as a whole, and at this time, the light-transmitting surface of the beam splitter 142 is facing the laser beam, so that the laser beam can pass through the beam splitter 142 and be projected onto the next beam splitter unit 14.

[0028] In this embodiment, a second permanent magnet 23 having a polarity opposite to that of the first permanent magnet 143 is arranged on the pressing device, so that during the pressing process of the pressing device pressing the edge banding strip, the second permanent magnet 23 drives the splitter unit 14 to change its state, so that the laser beam heats the hot melt adhesive layer 13 from the inside of the edge banding strip under the action of the splitter unit 14, so that the heating process and the bonding process are carried out synchronously, and the hot melt adhesive layer 13 is in a closed state during the heating process, thereby reducing the heat loss caused by the open environment under the external irradiation state, and can reduce the laser irradiation power while ensuring the heating effect, thereby achieving the effect of reducing energy consumption.

[0029] like Fig. 9 and Fig.10 As shown, a laser edge sealing process described in this embodiment, further, the pressing device also includes an inverted U-shaped pressing seat 21 and a feeding roller 22 rotatably installed in the pressing seat 21; the second permanent magnet 23 is arranged in the pressing seat 21, and the pressing seat 21 is provided with a through hole 211 at a position corresponding to the feeding roller 22 away from the second permanent magnet 23; the pressing seat 21 is provided with a pressing plate 24 below the inclined surface of the second permanent magnet 23.

[0030] In actual use, the plate edge banding strip can be inserted into the pressing seat 21 and covered on the outer peripheral surface of the feeding roller 22, and then passed out from the insertion hole 211. By setting the feeding roller 22, the plate edge banding strip can be transported to make the plate edge banding strip fit on the fitting surface of the external plate. The pressing plate 24 allows the magnetic flux lines generated by the first permanent magnet 143 and the second permanent magnet 23 to pass through, thereby squeezing the plate edge banding strip through the pressing plate 24, so that the plate edge banding strip is firmly bonded to the fitting surface of the external plate.

[0031] like Fig.10 As shown, in a laser edge sealing process described in this embodiment, further, the bottom surface of the second permanent magnet 23 is an inclined surface; the distance between the end of the bottom surface of the second permanent magnet 23 close to the material hole 211 and the press plate 24 is greater than the distance between the end of the bottom surface of the second permanent magnet 23 away from the material hole 211 and the press plate 24. With such a configuration, as the pressing device moves, the distance between the bottom surface of the second permanent magnet 23 and the corresponding first permanent magnet 143 gradually decreases, so that the magnetic adsorption force of the second permanent magnet 23 on the first permanent magnet 143 gradually increases, thereby gradually increasing the flip angle of the beam splitter 142, thereby achieving the purpose of adjusting the reflection angle of the reflection layer 144.

[0032] The above is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A sheet edge banding strip, characterized in that: It includes a substrate layer, a transparent layer stacked on one side of the substrate layer, and a hot melt adhesive layer stacked on the side of the transparent layer facing away from the substrate layer; The substrate layer is provided with a first groove along its length direction; and light splitting units are evenly distributed in the first groove in the reverse direction along its length.

2. A sheet material edge banding strip according to claim 1, characterized in that: The spectroscopic unit comprises a spectroscopic support, a spectroscope rotatably arranged on the spectroscopic support and a first permanent magnet slidably arranged on the spectroscopic support; the spectroscope is provided with a reflective layer; the first permanent magnet is transmission-connected to the spectroscope to drive the spectroscope to flip.

3. A sheet material edge banding strip according to claim 2, characterized in that: A rotating shaft is provided at both ends of the spectroscope; the rotating shaft is rotatably connected to the spectroscope bracket; second grooves are provided at both ends of the spectroscope bracket corresponding to the positions of the rotating shaft; a vortex surface centered on the rotating shaft is provided on the side of the second groove away from the rotating shaft; a spring sheet is provided in the second groove; one end of the spring sheet is fixedly connected to the rotating shaft; one end of the spring sheet is provided with a locking portion abutting against the vortex surface; a locking groove is provided at the small-diameter end of the vortex surface.

4. The plate edge banding strip according to claim 3, characterized in that: Both ends of the beam splitter are eccentrically provided with eccentric shafts; both ends of the first permanent magnet are provided with hinge shafts; and a connecting rod is hinged between the hinge shaft and the corresponding eccentric shaft.

5. The plate edge banding strip according to claim 2, characterized in that: The beam splitter is a four-prism structure made of a transparent material; one of the prism surfaces of the beam splitter is a convex structure, and the reflective layer is coated on the convex structure.

6. The plate edge banding strip according to claim 2, characterized in that: The light splitting bracket is penetrated by a sliding hole, and the first permanent magnet is slidably installed in the sliding hole.

7. A laser edge sealing process, characterized in that: The invention comprises a pressing device, a laser generating device and a plate edge banding strip as claimed in any one of claims 2 to 6; the pressing device comprises a second permanent magnet; the polarity of the second permanent magnet is opposite to that of the first permanent magnet; The process comprises the following steps: The edge banding strip of the plate is passed through the pressing device, and the hot melt adhesive layer is attached to the bonding surface of the external plate; the laser generating device is connected to one end of the edge banding strip of the plate; the reflective layer faces the laser generating device; The laser beam generated by the laser generating device is projected onto the reflective layer of the light splitting unit, and then projected onto the hot melt adhesive layer after being reflected by the reflective layer; The pressing device is moved along the external plate, and the first permanent magnet slides due to the adsorption of the second permanent magnet and drives the beam splitter to flip; When the second permanent magnet faces the first permanent magnet, the reflective layer completely faces the hot-melt adhesive layer.

8. The laser edge sealing process according to claim 7, characterized in that: The pressing device also includes a pressing seat and a feeding roller rotatably arranged in the pressing seat; The second permanent magnet is arranged in the pressing seat, and the pressing seat is provided with a through hole at a position corresponding to the feeding roller away from the second permanent magnet; the pressing seat is provided with a pressing plate below the inclined surface of the second permanent magnet.

9. The laser edge sealing process according to claim 8, characterized in that: The bottom surface of the second permanent magnet is an inclined surface; the distance between the end of the bottom surface of the second permanent magnet close to the penetration hole and the pressing plate is greater than the distance between the end of the bottom surface of the second permanent magnet away from the penetration hole and the pressing plate.

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