Method and device for preparing lamp strip and plug of lamp strip

Abstract

According to the lamp strip and the plug manufacturing method and device thereof, the two ends, located in the length direction of a lamp strip body, of a shading base are peeled off, so that a light-transmitting strip and a strip-shaped light source are exposed, and a power line is electrically connected with the strip-shaped light source conveniently; the plugs are integrally formed at the two ends of the lamp strip body and wrap the light-transmitting strip and the strip-shaped light source which are exposed due to stripping of the shading base, and sealing and water proofing are achieved. By means of the design, compared with the mode that plugs and connecting wires are directly additionally arranged at the two ends of a cut lamp strip, the lamp strip provided by the embodiment of the invention can enable the whole light-emitting face of the light-transmitting strip to keep the original light-emitting effect, meanwhile, dark areas and chromatic aberration do not exist at the ends of the lamp strip, and the lamp strip can be used as an EASY-ON (easy to use) silica gel neon lamp strip; the invention has the advantages of convenience in splicing, no dark space, easiness in installation and convenience in disassembly and assembly, and improves the overall appearance, comfort and practicability of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, in particular to a lamp strip and a preparation method and device of a plug thereof. BACKGROUND

[0002] The neon lamp strip has the characteristics of long service life, environmental protection, etc., and is widely used in the decoration lighting market, such as signboards, subtitle advertisements, building contour sketching, indoor ceiling lighting, and car body interior decoration.

[0003] In the use process of the lamp strip, the long strip-shaped lamp strip needs to be cut into small lamp strips of a specified length according to different use scenes. In the prior art, the lamp strip is directly cut at a cutting line, and then plugs and wires are added to both ends of the cut lamp strip. Since the cable is inserted into the lamp shell, a certain distance needs to be left at the first / last end inside the lamp shell for storing the cable, thereby causing a local dark area at the first / last end of the lamp strip, which causes two lamp strips to be unable to be connected into a light line when seamlessly spliced, thereby affecting the light visual aesthetics. SUMMARY

[0004] The present application aims to provide a lamp strip and a preparation method and device of a plug thereof, which aims to solve the problem of the easy occurrence of a dark area at the end of the lamp strip in the prior art.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a lamp strip, which comprises a lamp strip body, a plug, and a power line. The lamp strip body comprises a glue shell and a strip-shaped light source. The glue shell comprises a light-shielding seat and a light-transmitting strip. The light-shielding seat has an embedding groove extending along the length direction thereof. The light-transmitting strip is embedded in the embedding groove. A containing space extending along the length direction of the glue shell is arranged between the side wall of the light-transmitting strip and the groove wall of the embedding groove. The strip-shaped light source is arranged in the containing space. The light-shielding seat is peeled off at both ends in the length direction of the lamp strip body, so that the light-transmitting strip and the strip-shaped light source are exposed. Two plugs are integrally formed at both ends of the lamp strip body, respectively, and wrap the exposed light-transmitting strip and strip-shaped light source due to the peeling of the light-shielding seat. The power line penetrates one of the plugs and is electrically connected to the strip-shaped light source.

[0006] Preferably, the light-transmitting strip comprises a light-emitting part at the opening of the embedding groove and a light-guiding part in the embedding groove. The containing space is formed between the side wall of the light-guiding part and the groove wall of the embedding groove. The light-guiding part and the strip-shaped light source are cut by a part of material at both ends in the length direction of the lamp strip to form notches. The plugs fill and cover the notches.

[0007] Preferably, the outer side surface of the plug in the length direction of the lamp strip body is flush with the outer end surface of the light-emitting part in the length direction; and / or The side wall of the light guide part is provided with a groove extending along the length direction of the light transmission strip, and the groove and the groove wall of the embedding groove form a containing space, the lamp panel of the strip-shaped light source is located at the opening of the groove, and the lamp beads on the lamp panel extend into the groove.

[0008] Preferably, the transparent glue is plugged into the opening formed by the lamp panel and the groove on the end surface of the light guide part.

[0009] Preferably, the outer side of the transparent glue and the end surface of the light guide part are both provided with a white glue layer.

[0010] The embodiment of the present application also provides a preparation method of the lamp strip plug, comprising the following steps: Cutting: cutting the long strip-shaped lamp strip body into a lamp strip segment along the cutting line, the lamp strip body comprising a glue shell and a strip-shaped light source, the glue shell comprising a light shielding seat and a light transmission strip, the light shielding seat having an embedding groove extending along the length direction thereof, the light transmission strip being embedded in the embedding groove, the side wall of the light transmission strip and the groove wall of the embedding groove being provided with a containing space extending along the length direction of the glue shell, and the strip-shaped light source being arranged in the containing space; Peeling: peeling the light shielding seat at both ends of the lamp strip segment in the length direction to expose the light transmission strip and the strip-shaped light source; Welding: welding the power line with the exposed strip-shaped light source; Injection molding: placing the end part of the lamp strip segment into a mold, and extending the power line from the wire inlet hole of the corresponding plug, and forming an integrated plug for wrapping the exposed light transmission strip and strip-shaped light source through injection molding.

[0011] Preferably, the method further comprises the following steps between the peeling step and the welding step: Inward cutting: cutting part of the material inward from the light guide part of the light transmission strip and the lamp panel of the strip-shaped light source on the cutting surface of the lamp strip segment to shorten the length of the solder pad on the lamp panel, wherein the light transmission strip comprises a light emitting part at the opening of the embedding groove and a light guide part in the embedding groove; Gluing: using transparent glue to plug the opening formed by the lamp panel and the groove on the side surface of the light guide part, and using white glue to coat the outer side of the transparent glue and the inward cut end surface of the light guide part.

[0012] Preferably, in the injection molding step, the injection molding of the integrated plug for wrapping the exposed light transmission strip and strip-shaped light source comprises the following steps: Mixing AB glue at a ratio of 1:1, injecting the glue into the mold at a pressure of 0.3Mpa-0.4Mpa and maintaining the pressure for 5S-20S, the temperature of the mold during injection molding being 150℃-170℃; after the injection molding is completed, taking out the lamp strip from the mold, trimming and checking, and then cooling in the natural environment for 30 minutes.

[0013] Preferably, in the cutting step, the cutting tolerance is ±1mm; and / or, in the peeling step, the peeling tolerance is ±0.2mm; and / or, in the inner cutting step, the cutting depth is 2mm-2.5mm; and / or, in the glue blocking step, the transparent glue has a thickness of 2mm and the white glue has a thickness of 1mm; and / or, in the injection step, the size tolerance of the mold is ±0.1mm.

[0014] The embodiment of the present application also provides a preparation device of the lamp strip plug, which is used for preparing the plug in the lamp strip as described above or based on the preparation method as described above, and the preparation device comprises a cutting jig, a peeling jig, an inner cutting jig, a plug mold and an injection molding machine. The cutting jig is used for cutting the long strip-shaped lamp strip body into lamp strip segments along a cutting line. The peeling jig is used for peeling off the light-shielding seats at both ends of the lamp strip segment in the length direction to expose the light-transmitting strips and the strip-shaped light sources. The inner cutting jig is used for cutting part of the material inward on the cutting surface of the lamp strip segment to the light guide part of the light-transmitting strip and the lamp plate of the strip-shaped light source. The plug mold and the injection molding machine are used for integrally forming the plug on the end of the lamp strip segment to wrap the exposed light-transmitting strips and strip-shaped light sources.

[0015] By using the embodiment of the present application, the following beneficial effects are achieved: In the preparation process of the lamp strip, the light-transmitting strips and the strip-shaped light sources are exposed by peeling off the light-shielding seats at both ends of the lamp strip body in the length direction, so that the power lines are conveniently connected with the strip-shaped light sources. After the power lines are connected with the strip-shaped light sources, the plug is integrally formed at both ends of the lamp strip body and wraps the exposed light-transmitting strips and strip-shaped light sources due to the peeling off of the light-shielding seats, so that the sealing and waterproof are realized. According to the above design, compared with directly installing the plug and the wiring at both ends of the cut lamp strip, the lamp strip provided by the embodiment of the present application can retain the original light emitting effect of the whole light emitting surface of the light-transmitting strips, and can make the end part of the lamp strip have no dark area and color difference, so that the dark area caused by splicing in the use process of the customer is avoided, the overall appearance and comfort of the product are improved, and the lamp strip can be used as an EASY-ON (easy to use) silica gel neon lamp strip, has the advantages of convenient splicing, no dark area, easy installation and convenient disassembly, improves the overall appearance and comfort of the product and practicality.

[0016] The preparation method and the preparation device of the lamp strip plug also have the above beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in: Figure 1 This is a schematic diagram of the overall structure of the light strip in one embodiment; Figure 2 This is a schematic diagram of the structure at the end of the main body of the light strip in one embodiment; Figure 3 An exploded view of the LED strip in one embodiment; Figure 4 This is a cross-sectional structural diagram of the main body of the light strip in one embodiment; Figure 5 This is a flowchart illustrating the method for preparing the LED strip plug in one embodiment; Figures 6 to 11 This is a schematic diagram illustrating the changes at the end of the LED strip segment in the LED strip plug preparation method of one embodiment; Figure 12 This is a schematic diagram of a lamp strip plug preparation device in one embodiment; Figure 13 This is a schematic diagram of the cutting fixture in the LED strip plug preparation device in one embodiment; Figure 14 This is a schematic diagram of the stripping fixture in the LED strip plug preparation device in one embodiment; Figure 15 This is a partial structural schematic diagram of the stripping fixture in one embodiment; Figure 16 for Figure 15 Enlarged schematic diagram of the structure at point A in the diagram; Figure 17 This is a partial structural schematic diagram of the internal cutting fixture in one embodiment; Figure 18 for Figure 17 Enlarged schematic diagram of the structure at point B in the diagram; Figure 19 This is a schematic diagram of the structure of the plug mold in the LED strip plug preparation device in one embodiment; Figure 20 This is a schematic diagram of the plug after injection molding and mold opening in one embodiment.

[0019] Explanation of reference numerals in the attached diagram: 10. Main body of the light strip; 20. End cap; 30. Power cord; 40. Cable protection sleeve; 50. Transparent tape; 60. White adhesive layer; 110. Light shield; 120. Light-transmitting strip; 121. Light guide; 1211. Groove; 1212. Notch; 122. Light emitting part; 1221. Light emitting surface; 130. Strip light source; 131. Light board; 1311. Solder pad; 132. Lamp chip; 1. Cutting fixture; 11. Drive mechanism; 12. Cutting blade; 2. Peeling fixture; 21. First peeling blade; 22. Second peeling blade; 3. Internal cutting fixture; 31. First internal cutting blade; 32. Second internal cutting blade; 4. Plug mold; 41. Upper mold; 42. Lower mold; 43. Inlet hole; 44. Glue injection port; 45. Insertion port. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This application provides a light strip, such as... Figures 1-4 As shown, the light strip includes a main body 10, a plug 20, and a power cord 30. The main body 10 includes a housing and a strip light source 130. The housing includes a light-shielding base 110 and a light-transmitting strip 120. The light-shielding base 110 has a groove extending along its length, and the light-transmitting strip 120 is embedded in the groove. A receiving space extending along the length of the housing is provided between the side wall of the light-transmitting strip 120 and the groove wall. The strip light source 130 is disposed in the receiving space. The strip light source 130 includes a lamp board 131 (flexible printed circuit board) and a plurality of LED beads 132 spaced apart along the length of the lamp board 131. The light-shielding base 110 is peeled off at both ends along the length of the main body 10 to expose the light-transmitting strip 120 and the strip light source 130. Two plugs 20 are integrally formed at both ends of the light strip body 10, and wrap around the light-transmitting strip 120 and strip light source 130 exposed by peeling off the light shield 110. The power cord 30 passes through one of the plugs 20 and is electrically connected to the strip light source 130.

[0022] In this embodiment, by peeling off the two ends of the light shield 110 along the length of the light strip body 10, the light-transmitting strip 120 and the strip light source 130 are exposed, making it easier for the power cord 30 to be electrically connected to the strip light source 130. After the power cord 30 is connected to the strip light source 130 (e.g., by welding), the plug 20 is integrally injection molded onto both ends of the light strip body 10 and wraps around the light-transmitting strip 120 and the strip light source 130 exposed by peeling off the light shield 110, thus achieving a sealed and waterproof effect. As described above, compared to directly adding end caps and wiring to both ends of the cut light strip, the light strip provided in this embodiment allows the overall light-emitting surface 1221 of the light-transmitting strip 120 to retain its original luminous effect while eliminating dark areas and color differences at the ends of the light strip. This solves the problem of dark areas caused by splicing during customer use, improving the overall appearance and comfort of the product. At the same time, this light strip can be used as an EASY-ON silicone neon light strip, with the advantages of easy splicing without dark areas, easy installation, and easy disassembly, improving the overall appearance, comfort, and practicality of the product.

[0023] In the process of preparing the main body 10 of the light strip, the light shield 110, the light-transmitting strip 120 and the strip light source 130 are integrally extruded using an extruder.

[0024] The light-shielding base 110, the light-transmitting strip 120, and the plug 20 are all made of flexible materials. The light-shielding base 110 and the plug 20 can be made of non-transparent colloids, such as silicone, PVC (polyvinyl chloride), or PUR (polyurethane). The light-transmitting strip 120 can be made of semi-transparent flexible plastic, semi-transparent silicone, or semi-transparent silicone rubber that has light transmission and light diffusion functions.

[0025] Furthermore, to enhance the strength of the connection between the power cord 30 and the plug 20, a cable protection sleeve 40 integrally formed with the plug 20 is provided at the connection between the plug 20 and the power cord 30, and the cable protection sleeve 40 is sealed on the power cord 30.

[0026] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the light-transmitting strip 120 includes a light-emitting portion 122 located at the opening of the recess and a light-guiding portion 121 located within the recess. A accommodating space is formed between the side wall of the light-guiding portion 121 and the recess wall. It should be noted that the recess wall can be either two opposing side walls or a bottom wall opposite the light-emitting surface 1221. In the figure, the accommodating space is formed between the side wall of the light-guiding portion 121 and one side wall of the recess. (Combined with...) Figure 7 and Figure 8 As shown, the light guide 121 and the strip light source 130 have part of the material cut off at both ends of the strip length direction to form a notch 1212, and the plug 20 fills and covers the notch 1212.

[0027] It is understandable that the light-emitting part 122 has a light-emitting surface 1221 on the exposed side (i.e. the side facing away from the groove). The light emitted by the strip light source 130 is conducted to the light-emitting part 122 through the light guide part 121 and emitted outward from the light-emitting surface 1221.

[0028] By cutting off the light guide 121 and the strip light source 130 at the end of the light strip along its length to form a notch 1212, and filling and covering the notch 1212 with the plug 20, the light emitting part 122 is not covered by the plug 20. After the light strip is lit, the light emitted by the strip light source 130 is emitted through the light emitting part 122 of the light-transmitting strip 120, and the light emission color at the end of the entire light strip is no different from the rest.

[0029] It should be noted that at least the light-shielding seats 110 covering both sides of the light guide 121 and the light-shielding seats 110 on the side of the light guide 121 away from the light-emitting surface 1221 need to be removed, that is, the part of the light-shielding seats 110 that is removed is U-shaped.

[0030] Furthermore, the width of the slot opening and the light guide portion 121 gradually increases from the inside to the outside, thereby expanding the light emission range.

[0031] In one specific embodiment, such as Figure 1 and Figure 11 As shown, the outer surface of the plug 20 along the length of the light strip body 10 is flush with the outer end face of the light-emitting part 122 along the length of the light strip body 10. This design ensures that the plug 20 does not protrude outwards, allowing for seamless splicing between light strips without dark areas or color differences.

[0032] In one specific embodiment, such as Figure 1 As shown, the side wall of the light guide 121 has a groove 1211 extending along the length of the light-transmitting strip 120. A receiving space is formed between the groove 1211 and the groove wall of the recess. The lamp plate 131 of the strip light source 130 is located at the opening of the groove 1211, and the LED beads 132 on the lamp plate 131 extend into the groove 1211. See also... Figure 8 and Figure 9 As shown, it also includes transparent adhesive 50, which is inserted into the opening formed by the lamp plate 131 and the groove 1211 on the end face of the light guide 121. After the transparent adhesive 50 is injected into the opening and cured, it seals the opening, which does not affect the light transmission and also prevents the adhesive from flowing into the receiving space through the opening during the subsequent injection molding of the plug 20.

[0033] Further, see Figure 10 As shown, a white adhesive layer 60 is provided on the outer side of the transparent adhesive 50 and the end face of the light guide 121. The white adhesive layer 60 can play the role of partially blocking light and dispersing light.

[0034] This application also provides a method for preparing a light strip plug, such as...Figure 5 As shown, the preparation method includes the following steps: Cutting: The long strip-shaped light strip body 10 is cut into light strip segments of a specified length along the cutting line. The light strip body 10 includes a housing and a strip light source 130. The housing includes a light-shielding base 110 and a light-transmitting strip 120. The light-shielding base 110 has a groove extending along its length direction. The light-transmitting strip 120 is embedded in the groove. There is an accommodating space extending along the length direction of the housing between the side wall of the light-transmitting strip 120 and the groove wall. The strip light source 130 is disposed in the accommodating space. The cross-section of the cut light strip segment is as shown in the figure. Figure 6 As shown.

[0035] Stripping: The light-shielding base 110 is stripped at both ends along the length of the light strip segment to expose the light-transmitting strip 120 and the strip light source 130. The stripped light strip segment is as follows: Figure 7 As shown.

[0036] Internal cutting: On the cutting surface of the light strip segment, a portion of the material of the light guide portion 121 of the light-transmitting strip 120 and the lamp board 131 of the strip light source 130 is cut inward to shorten the length of the pad 1311 on the lamp board 131. The light-transmitting strip 120 includes a light-emitting portion 122 located at the opening of the recess and a light guide portion 121 located within the recess. The light strip segment after internal cutting is as follows: Figure 8 As shown.

[0037] Sealing: such as Figure 9 As shown, the opening formed by the groove 1211 on the side of the light guide 121 surrounding the end face of the light guide 121 is sealed with transparent tape 50; Figure 10 As shown, white glue is used to coat the outer surface of the transparent glue 50 and the inner tangent end face of the light guide 121.

[0038] Soldering: Solder the power cord 30 to the exposed strip light source 130.

[0039] Injection molding: The end of the light strip segment is placed into the mold, and the cut front end of the light strip segment abuts against the inner cavity of the mold without leaving gaps. The power cord 30 extends out from the inlet hole of the corresponding plug 20. Through injection molding, an integral plug 20 is formed that wraps the exposed light-transmitting strip 120 and the strip light source 130. Figure 11As shown. Specifically, after the upper and lower molds are closed, silicone injection molding and hot pressing are performed. The injection adhesive is a mixture of two adhesives, A and B, in a 1:1 ratio, injected into the mold at a pressure of 0.3Mpa-0.4Mpa and held at pressure for 5S-20S (the time varies depending on the product's dimensions). The mold temperature during injection molding is 150℃-170℃. After injection molding, the light strip is removed from the mold, and the injection burrs are trimmed with a utility knife or scissors to ensure a smooth surface. The finished product should not be damaged by cutting the adhesive, which would cause defects. The molded product should not have any defects such as damage, residual adhesive, deformation, missing adhesive, or cracks. The wire should not have any punctures, and the thickness (2mm-2.8mm) should be uniform with a smooth surface. The product is then allowed to cool naturally for 30 minutes. This process ensures that the integrated plug formed after injection molding is reliably connected to the original light-shielding shell and light-transmitting strip, without gaps or detachment, ensuring reliable sealing and connection.

[0040] Specifically, in the cutting step, the cutting tolerance is ±1mm; in the peeling step, the peeling tolerance is ±0.2mm; in the internal cutting step, the cutting depth is 2mm-2.5mm; in the glue-sealing step, the thickness of the transparent glue 50 is 2mm, and the thickness of the white glue is 1mm; in the injection molding step, the mold dimensional tolerance is ±0.1mm. Through precise cutting / peeling and precision injection molding of the plug 20, and by strictly controlling the flatness of the cut surface and the cutting tolerance within an error range of 0.2mm, the quality of the product is strictly controlled.

[0041] As set up above, an integrated edgeless end cap 20 is finally formed at the end of the light strip segment. The end cap 20 and the plastic shell of the light strip body 10 can be perfectly combined with the same profile. This light strip can be used as an EASY-ON silicone neon light strip, which has the advantages of easy splicing without dark areas, easy installation, and easy disassembly.

[0042] Furthermore, this application embodiment also provides a device for preparing a lamp strip plug, which prepares the plug 20 in the lamp strip in the above embodiment based on the above preparation method, such as... Figure 12 As shown, the preparation apparatus includes a cutting fixture 1, a peeling fixture 2, an internal cutting fixture 3, a plug mold 4, and an injection molding machine. It should be noted that when using the above apparatus to cut, peel, and internally cut the LED strip segment, the light-emitting surface of the LED strip segment faces downwards and is positioned on the positioning fixture.

[0043] The cutting fixture 1 is used to cut the long strip-shaped LED strip body 10 into LED strip segments along the cutting line. Specifically, it is combined with... Figure 12 and Figure 13 As shown, the cutting fixture 1 includes a drive mechanism 11 and a cutter 12 disposed on the drive mechanism 11. The drive mechanism 11 (driven by pneumatic or electric means) drives the cutter 12 to press down, thereby cutting the long strip of light strip body 10 into light strip segments of a specified length along the cutting line.

[0044] The stripping fixture 2 is used to strip the light-shielding seats 110 at both ends in the length direction of the strip light segment, so as to expose the light-transmitting strip 120 and the strip light source 130. After stripping, the strip light segment is as shown in Figure 7 . Combined with Figure 12 and Figures 14 to 16 , the stripping fixture 2 includes a vertically pressing mechanism (manually driven), a horizontally pushing mechanism (manually driven), a first stripping knife 21 and a second stripping knife 22. The first stripping knife 21 is driven by the vertically pressing mechanism, and the middle of its blade is higher than both ends, so as to cut the light-shielding seats 110 at both ends in the length direction of the strip light segment perpendicular to the length direction of the strip light segment. The second stripping knife 22 is driven by the horizontally pushing mechanism, and the cross-section of its blade is similar to the shape of "ji", so as to cut the light-shielding seats 110 at both ends in the length direction of the strip light segment parallel to the length direction of the strip light segment.

[0045] The inner cutting fixture 3 is used to inwardly cut off part of the material of the light guide part 121 of the light-transmitting strip 120 and the lamp board 131 of the strip light source 130 on the cutting surface of the strip light segment. After inner cutting, the strip light segment is as shown in Figure 8 . Combined with Figure 12 and Figure 17 and Figure 18 , the inner cutting fixture 3 has basically the same structure as the stripping fixture 2, only the tool shapes are different. The first inner cutting knife 31 driven by the vertically pressing mechanism and the second inner cutting knife 32 driven by the horizontally pushing mechanism are both sheet-shaped blades, and the blades are straight lines.

[0046] The plug mold 4 and the injection molding machine (not shown in the figure) are used to injection mold an integral plug 20 at the end of the strip light segment to wrap the exposed light-transmitting strip 120 and strip light source 130. Combined with Figure 12 and Figure 19 and Figure 20 , the plug mold 4 is formed by buckling the upper mold 41 and the lower mold 42. A cavity adapted to the shape of the plug 20, an insertion port 45 for inserting the end of the strip light segment into the cavity, a glue injection port 44 communicated with the cavity, an inlet hole 43 for inserting the power line 30 into the cavity, and a riser communicated with the cavity are formed between the upper mold 41 and the lower mold 42.

[0047] When the preparation device is specifically used, the specific operations are as follows: S1. Use the cutting fixture 1 to cut the long strip-shaped strip light main body 10 as a whole along the cutting ray, so as to cut it into two strip light segments, and the cutting tolerance is plus or minus 1 mm. After cutting, the pads 1311 on the lamp board 131 in the internal light-emitting components of the strip light main body 10 are divided into two, so that each strip light segment contains pads 1311 at its end. Preferably, the cutting ray is located in the middle of the overall pad 1311. When the strip light main body 10 is cut along the cutting ray, the sizes of the pads 1311 of the two cut and separated strip light segments are the same.

[0048] S2. Using the stripping fixture 2, the bottom of the light-emitting surface of the light strip section is precisely cut and stripped of adhesive as required, with a tolerance of ±0.2mm. The adhesive is stripped along the length of the light strip section to completely expose the pads 1311 on the light board 131 (the adhesive at the light-emitting surface 1221 is not stripped, but the light-shielding adhesive on both sides of the light-emitting surface 1221 and the bottom surface directly opposite the light-emitting surface 1221 is stripped).

[0049] S3. Using the internal cutting fixture 3, cut the cut surface of the adhesive stripping position by 2mm-2.5mm along the cross-sectional direction of the light strip section. Do not cut the adhesive at the top light-emitting surface 1221, so that the length of the solder pad 1311 is shortened.

[0050] S4. Seal the square hole near LED 132 with 2mm transparent tape 50.

[0051] S5. Use 1mm white glue to seal the inscribed cross-section.

[0052] S6. After welding the power cord 30, place the LED strip segment and the power cord 30 into the plug mold 4 (tolerance ±0.1mm) and injection mold the plug 20 to ensure that there is no dark area at the end of the LED strip segment.

[0053] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A light strip, characterized in that, Includes the main body of the light strip, the end cap, and the power cord; The main body of the light strip includes a plastic shell and a strip light source. The plastic shell includes a light-shielding base and a light-transmitting strip. The light-shielding base has a groove extending along its length. The light-transmitting strip is embedded in the groove. There is an accommodating space extending along the length of the plastic shell between the side wall of the light-transmitting strip and the groove wall of the groove. The strip light source is disposed in the accommodating space. The light-shielding base is peeled off at both ends along the length of the light strip body to expose the light-transmitting strip and the strip light source; the two plugs are integrally formed at both ends of the light strip body and wrap around the light-transmitting strip and the strip light source exposed by peeling off the light-shielding base; the power line passes through one of the plugs and is electrically connected to the strip light source.

2. The light strip according to claim 1, characterized in that, The light-transmitting strip includes a light-emitting part located at the opening of the recess and a light-guiding part located within the recess. The accommodating space is formed between the side wall of the light-guiding part and the groove wall of the recess. Both ends of the light-guiding part and the strip light source have part of the material cut off to form gaps, and the plug fills and covers the gaps.

3. The light strip according to claim 2, characterized in that, The plug is flush with the outer surface of the light strip body along its length direction and the outer end face of the light-emitting part along its length direction; and / or The sidewall of the light guide is provided with a groove extending along the length of the light-transmitting strip. The groove and the groove wall of the recess form the receiving space. The lamp plate of the strip light source is located at the opening of the groove, and the lamp beads on the lamp plate extend into the groove.

4. The light strip according to claim 3, characterized in that, It also includes transparent adhesive, which is inserted into the opening formed by the lamp plate and the groove on the end face of the light guide.

5. The light strip according to claim 4, characterized in that, Both the outer surface of the transparent adhesive and the end face of the light guide are provided with a white adhesive layer.

6. A method for preparing a light strip plug, characterized in that, Includes the following steps: Cutting: The long strip of light strip body is cut into light strip segments along the cutting line. The light strip body includes a plastic shell and a strip light source. The plastic shell includes a light shield and a light-transmitting strip. The light shield has a groove extending along its length direction. The light-transmitting strip is embedded in the groove. There is an accommodating space extending along the length direction of the plastic shell between the side wall of the light-transmitting strip and the groove wall of the groove. The strip light source is disposed in the accommodating space. Peeling: Peel the light-shielding base at both ends along the length of the light strip segment to expose the light-transmitting strip and the strip light source; Soldering: Soldering the power cord to the exposed strip light source; Injection molding: The end of the light strip segment is placed into the mold, and the power cord extends out from the inlet hole of the corresponding plug. An integral plug is formed by injection molding to wrap the exposed light-transmitting strip and the strip light source.

7. The preparation method according to claim 6, characterized in that, In the injection molding step, the process of forming an integral plug that encloses the exposed light-transmitting strip and the strip-shaped light source through injection molding specifically includes: Mix AB glue at a 1:1 ratio and inject it into the mold at a pressure of 0.3Mpa-0.4Mpa, holding the pressure for 5S-20S. The temperature of the mold during injection is 150℃-170℃. After injection, remove the LED strip from the mold, trim and inspect it, and then let it cool in a natural environment for 30 minutes.

8. The preparation method according to claim 7, characterized in that, The following steps are also included between the peeling step and the welding step: Inward cutting: On the cutting surface of the light strip segment, a portion of the material of the light guide portion of the light-transmitting strip and the lamp board of the strip light source is cut inward to shorten the length of the pads on the lamp board. The light-transmitting strip includes a light-emitting portion located at the opening of the recess and a light guide portion located within the recess. Sealing with adhesive: The opening formed by the groove on the side of the light board and the light guide portion surrounding the end face of the light guide portion is sealed with transparent adhesive, and white glue is applied to the outer side of the transparent adhesive and the inner tangent end face of the light guide portion.

9. The preparation method according to claim 8, characterized in that: During the cutting process, the cutting tolerance is ±1mm; And / or, in the peeling step, the peeling tolerance is ±0.2 mm; And / or, in the internal incision step, the resection depth is 2mm-2.5mm; And / or, in the sealing step, the thickness of the transparent adhesive is 2mm and the thickness of the white adhesive is 1mm; And / or, in the injection molding step, the mold dimensional tolerance is ±0.1mm.

10. An apparatus for preparing a lamp strip plug, used for preparing a plug in a lamp strip as described in any one of claims 1-5, or based on the preparation method described in any one of claims 6-9, characterized in that, The preparation apparatus includes a cutting fixture, a peeling fixture, an internal cutting fixture, a plug mold, and an injection molding machine; The cutting fixture is used to cut the long strip of light strip body into light strip segments along the cutting line; The stripping fixture is used to strip the light-shielding seats at both ends of the light strip segment along its length to expose the light-transmitting strip and the strip light source. The internal cutting fixture is used to cut off a portion of the material from the light guide portion of the light-transmitting strip and the lamp plate of the strip light source inward on the cutting surface of the light strip section. The plug mold and the injection molding machine are used to injection mold an integral plug at the end of the light strip segment to wrap the exposed light-transmitting strip and the strip light source.

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