阅读说明：本技术 一种led滴胶灯带及其制作方法 (LED (light-emitting diode) adhesive-dripping lamp belt and manufacturing method thereof ) 是由 王定锋 徐文红 冉崇友 徐磊 宋健 于 2020-04-25 设计创作，主要内容包括：本发明涉及一种LED滴胶灯带及其制作方法,具体而言,用整卷含多条灯带线路板的连体柔性线路板,SMT贴上元器件成为整卷含多条裸灯带的连体灯带,整卷多条连体裸灯带的两边都各有一板边,板边涂有不粘胶水的不粘剂使滴胶水后的胶水不从板边流到板外,然后整卷滴胶,整卷打开进入滴胶器下面水平带胶粘性的传输带上粘住整卷灯带,传输带下面是水平的平台,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头,灯带往前一边传输移动,滴胶头一边连续不断滴胶,自然流动连成一体流平,均匀分布在连体灯带上,在传输带的带动下进入隧道炉烤箱,烤干后出隧道炉烤箱,分切成单条,制作成LED防水灯带。(The invention relates to an LED adhesive-dripping lamp belt and a manufacturing method thereof, in particular to a whole roll of a conjoined flexible circuit board containing a plurality of lamp belt circuit boards, wherein an SMT is used for pasting components to form the whole roll of the conjoined flexible circuit board containing a plurality of bare lamp belts, two sides of the whole roll of the plurality of conjoined bare lamp belts are respectively provided with a plate edge, non-stick agents which do not stick adhesive are coated on the plate edges to prevent the adhesive after dripping from flowing outside a plate from the plate edge, then the whole roll of adhesive is dripped, the whole roll of adhesive is unfolded to enter a horizontal adhesive-carrying transmission belt below an adhesive dripper to stick the whole roll of lamp belts, a horizontal platform is arranged below the transmission belt to be adsorbed and leveled, the adhesive dripper is arranged above the lamp belts, a plurality of adhesive dripping heads are arranged on the adhesive dripper, the lamp belts are transmitted and moved to the front side, one side of the adhesive dripping heads continuously drip adhesive and naturally flow and are connected into a tunnel oven to be leveled into a whole body and are uniformly distributed on the conjoined lamp belt, the tunnel oven, and then are taken out of the tunnel oven after being baked, and cutting into single strips to manufacture the LED waterproof lamp strip.)

1. A method for manufacturing an LED (light emitting diode) adhesive dripping lamp band comprises the steps of using a whole roll of a connected flexible circuit board containing a plurality of lamp band circuit boards, adhering components by an SMT (surface mount technology) to form the whole roll of the connected lamp band containing a plurality of bare lamp bands, or using a plurality of single connected flexible circuit boards containing a plurality of lamp band circuit boards, adhering components by a SMT, welding a plurality of single boards end to form the whole roll of the connected lamp band containing the plurality of bare lamp bands, wherein two sides of the whole roll of the plurality of connected bare lamp bands are respectively provided with a plate edge, the plate edges are coated with non-stick agents of non-stick glue, so that the glue after the glue is dripped does not flow out of the plate edge, then dripping waterproof glue on the whole roll, the whole roll is opened to enter a horizontal adhesive transmission belt below a glue dripping device to stick to the whole roll of lamp bands, a horizontal platform is arranged below a transmission belt to be adsorbed and leveled, the glue dripping device is arranged above the lamp band, a plurality of adhesive dripping heads are arranged on the glue dripping device, and the number of the lamp band is the number of the adhesive dripping heads is 1, each glue dripping head is respectively aligned on a single slitting line of a slitting strip of the conjoined lamp strip, the lamp strip is adsorbed by opening a transmission belt to move forwards on a platform, all the glue dripping heads are opened simultaneously, an automatic controller respectively controls the amount of waterproof glue dripping of each glue dripping head, the lamp strip is transmitted and moved to the front side, waterproof glue is continuously dripped on one side of each glue dripping head, the lamp strip dripped with the waterproof glue is driven by the transmission belt to enter a tunnel oven, the lamp strip is taken out of the tunnel oven after being dried and is separated from the glue of the transmission belt until a whole roll of the conjoined lamp strip is dripped with the waterproof glue and is dried, in the process, a plate dripped with the waterproof glue is adsorbed on the transmission belt on a horizontal platform to keep horizontal, the waterproof glue naturally flows, is connected into a whole and is leveled, and is uniformly distributed on the conjoined lamp strip and then enters the tunnel oven, the amount of the waterproof glue dripping is controlled to be an upper limit standard on the surface of the light emitting surface of the waterproof glue which does not flow to the lamp beads, and then, the whole board cured with the waterproof glue is transferred to a slitting machine to be slit into single lamp strips, the slit single lamp strips are longitudinally (in the longitudinal direction) divided into two side surfaces, and the side surface of the circuit board on each side surface and the side surface of the cured glue are respectively arranged on the same cutter surface.

2. An LED adhesive-dripping lamp strip, comprising:

a flexible circuit board;

LED lamp beads or LED lamp beads and control elements;

waterproof glue;

the LED lamp strip is characterized in that the flexible circuit board is a single-layer circuit board or a double-layer circuit board, the LED lamp beads or the LED lamp beads and the control elements are welded on surface bonding pads of the circuit board, the waterproof glue forms solidified soft waterproof glue, the waterproof glue is adhered to the upper surface of the circuit board, the waterproof glue is adhered to a support of the LED lamp beads or adhered to a support of the LED lamp beads and the control elements, the waterproof glue blocks the circuit board, when the upper surface of the circuit board is viewed, the upper surface of the circuit board cannot be seen, the packaging glue of the LED lamp beads is still exposed, the waterproof glue does not influence the light emission of the LEDs, when the lamp strip is provided with the control elements, the surface and the side surfaces of the control elements are completely covered by the waterproof glue, or the side surfaces of the control elements are adhered with the waterproof glue, but the upper surface of the control elements is not adhered with the waterproof glue or is not adhered with the waterproof glue, and the lamp strip faces to the two side surfaces in the longitudinal direction (the long direction), the side of the flexible circuit board of every side and the side of waterproof glue all are on same cutting tool face respectively, and the lamp area is in the optional position of avoiding component department, and the lamp area is under straight state, and waterproof glue's upper surface and two sides are the plane, and the angle that upper surface and two sides formed all is greater than 75 degrees respectively, is less than 105 degrees, and the waterproof glue's of lamp area thickness is greater than or equal to 0.05mm, is less than or equal to 6.0 mm.

3. The LED tape strip according to claim 1 or 2, wherein the LED waterproof tape has a length of 0.5 m or more.

4. The LED glue dripping lamp strip according to claim 1 or 2, wherein the LED waterproof lamp strip is composed of a plurality of periodic circuits, each periodic circuit has the same circuit, each periodic component is the same, a shearing position is designed among each period, the shearing position can be sheared for use, a metal connecting point is designed at the shearing position, the metal connecting point is used for connecting a plurality of lamp strips for use, or/and is used for connecting a power supply, the metal connecting point is arranged on the front side or/and the back side, when the metal connecting point is arranged on the front side, the metal connecting point is covered by the waterproof glue, and the waterproof glue can be peeled off or removed for use when in use.

5. The LED drip tape strip according to claim 1, wherein a double-sided adhesive tape is adhered to the back of the plurality of connected strips, and then the strips are cut into strips, the double-sided adhesive tape is waterproof, moistureproof, insulating and adhesive and fixing during installation and use, and the waterproof adhesive tape, the circuit board and the double-sided adhesive tape are respectively arranged on a cutting surface on the two longitudinal (longitudinal) side surfaces of the strip.

6. The LED drip tape according to claim 1 or 2, wherein the waterproof adhesive is a filling adhesive with light blocking and light reflecting functions.

7. The LED adhesive dripping lamp strip according to claim 1 or 2, wherein a layer of waterproof resin is wrapped around the lamp strip in the longitudinal direction to form a higher-grade waterproof lamp strip.

8. A LED tape with adhesive dripping as claimed in claim 1 or 2, wherein a layer of transparent waterproof adhesive is applied on top of the tape to increase the waterproof rating of the tape.

Technical Field

The invention relates to the field of lamp belts, in particular to an LED adhesive-dripping lamp belt and a manufacturing method thereof.

Background

At present, waterproof LED lamp belts in the industry are generally waterproof by adopting the following two modes, firstly, glue is dripped on a front surface covering film of a single LED lamp belt circuit board and welded components to form a thick glue layer which is much higher than the components, the glue consumption of the method is large, the lamp belt circuit board can be welded by reflow soldering only by using a high-temperature-resistant expensive PI covering film, the material cost is high, and the production efficiency of single operation is low.

The other method is to adopt a mode of rubber coating or casing tube to carry out water proofing on the single LED lamp strip, the method is also that the circuit board of the lamp strip can be welded by reflow soldering only by using high-temperature resistant expensive PI as a covering film, the material cost of the rubber coating or casing tube is high, and the production efficiency of single operation is very low.

In order to overcome the defects and the shortcomings, the invention adopts SMT to weld the whole roll of the conjoined lamp strip containing a plurality of bare lamp strips with components and parts, carries out whole roll glue dripping, controls the glue to be level or close to level with the light emitting surface of the lamp beads, and cuts the glue into single LED waterproof lamp strips after the glue is cured, thereby replacing the LED lamp strip glue dripping and water proofing in the current industry, the LED lamp strips are coated with glue and water proof, and are waterproof with LED lamp strip coating sleeves, the material cost is low, and the plurality of lamp strips are spliced together for manufacturing and production, thereby greatly improving the production efficiency.

Disclosure of Invention

The invention relates to a method for manufacturing an LED (light emitting diode) adhesive-dripping lamp band, which comprises the following steps of sticking a component on an integral roll of a connected flexible circuit board comprising a plurality of lamp band circuit boards by using an SMT (surface mount technology), wherein the integral roll of the connected lamp band comprising a plurality of bare lamp bands is formed by sticking components on the integral roll of the connected flexible circuit board comprising the plurality of lamp band circuit boards, wherein two sides of the integral roll of the plurality of connected bare lamp bands are respectively provided with a plate edge, the plate edges are coated with a non-stick agent which does not stick the adhesive, so that the adhesive after dripping does not flow out of the plate from the plate edge, then the integral roll of the connected flexible circuit board is dripped, the integral roll of the connected flexible circuit board is opened to enter a horizontal adhesive-carrying transmission belt below an adhesive dripping device to stick the integral roll of the connected lamp bands, a horizontal platform is arranged below the transmission belt, the transmission belt is adsorbed and leveled, the adhesive dripping device is arranged above the lamp bands, a plurality of adhesive dripping heads are arranged on the adhesive dripping device, the lamp bands are transmitted and moved to the front side, the lamp bands, continuously drip adhesive dripping heads, naturally flow and are connected into a tunnel oven to be leveled into the tunnel oven and are uniformly distributed on the connected with the connected lamp bands, and then taken out of the tunnel oven after being baked, and cutting into single strips to manufacture the LED waterproof lamp strip.

According to the invention, the method for manufacturing the LED glue dripping lamp strip is provided, specifically, a whole roll of the conjoined flexible circuit board containing a plurality of lamp strip circuit boards is used, an SMT (surface mount technology) is used for pasting a component to form the whole roll of the conjoined flexible circuit board containing a plurality of bare lamp strips, or a plurality of conjoined flexible circuit boards containing a plurality of lamp strip circuit boards in a single piece are used for pasting the component, then a plurality of single pieces are welded end to form the whole roll of the conjoined lamp strip containing the plurality of bare lamp strips, two sides of the whole roll of the plurality of conjoined bare lamp strips are respectively provided with a plate edge, the plate edges are coated with a non-stick agent which does not stick glue, so that the glue after glue dripping does not flow out of the plate edge, then the whole roll is dripped with waterproof glue, the whole roll is opened to enter a horizontal transmission belt with glue adhesiveness below a glue dripping device to stick the whole roll of lamp strips, a horizontal platform is arranged below a transmission belt to absorb the whole roll of lamp strip, the glue dripping device is arranged above the lamp strip, a plurality of glue dripping heads are arranged on the glue dripping device, and the lamp strip number added by 1 is the number of the glue dripping heads, each glue dripping head is respectively aligned on a single slitting line of a slitting strip of the conjoined lamp strip, the lamp strip is adsorbed by opening a transmission belt to move forwards on a platform, all the glue dripping heads are opened simultaneously, an automatic controller respectively controls the amount of waterproof glue dripping of each glue dripping head, the lamp strip is transmitted and moved to the front side, waterproof glue is continuously dripped on one side of each glue dripping head, the lamp strip dripped with the waterproof glue is driven by the transmission belt to enter a tunnel oven, the lamp strip is taken out of the tunnel oven after being dried and is separated from the glue of the transmission belt until a whole roll of the conjoined lamp strip is dripped with the waterproof glue and is dried, in the process, a plate dripped with the waterproof glue is adsorbed on the transmission belt on a horizontal platform to keep horizontal, the waterproof glue naturally flows, is connected into a whole and is leveled, and is uniformly distributed on the conjoined lamp strip and then enters the tunnel oven, the amount of the waterproof glue dripping is controlled to be an upper limit standard on the surface of the light emitting surface of the waterproof glue which does not flow to the lamp beads, and then, the whole board cured with the waterproof glue is transferred to a slitting machine to be slit into single lamp strips, the slit single lamp strips are longitudinally (in the longitudinal direction) divided into two side surfaces, and the side surface of the circuit board on each side surface and the side surface of the cured glue are respectively arranged on the same cutter surface.

According to the present invention, there is also provided an LED tape strip comprising: a flexible circuit board; LED lamp beads or LED lamp beads and control elements; waterproof glue; the LED lamp strip is characterized in that the flexible circuit board is a single-layer circuit board or a double-layer circuit board, the LED lamp beads or the LED lamp beads and the control elements are welded on surface bonding pads of the circuit board, the waterproof glue forms solidified soft waterproof glue, the waterproof glue is adhered to the upper surface of the circuit board, the waterproof glue is adhered to a support of the LED lamp beads or adhered to a support of the LED lamp beads and the control elements, the waterproof glue blocks the circuit board, when the upper surface of the circuit board is viewed, the upper surface of the circuit board cannot be seen, the packaging glue of the LED lamp beads is still exposed, the waterproof glue does not influence the light emission of the LEDs, when the lamp strip is provided with the control elements, the surface and the side surfaces of the control elements are completely covered by the waterproof glue, or the side surfaces of the control elements are adhered with the waterproof glue, but the upper surface of the control elements is not adhered with the waterproof glue or is not adhered with the waterproof glue, and the lamp strip faces to the two side surfaces in the longitudinal direction (the long direction), the side of the flexible circuit board of every side and the side of waterproof glue all are on same cutting tool face respectively, and the lamp area is in the optional position of avoiding component department, and the lamp area is under straight state, and waterproof glue's upper surface and two sides are the plane, and the angle that upper surface and two sides formed all is greater than 75 degrees respectively, is less than 105 degrees, and the waterproof glue's of lamp area thickness is greater than or equal to 0.05mm, is less than or equal to 6.0 mm.

According to a preferred embodiment of the present invention, the LED tape is characterized in that the length of the LED waterproof tape is greater than or equal to 0.5 m.

According to a preferred embodiment of the invention, the LED glue-dripping lamp strip is characterized in that the LED waterproof lamp strip is composed of a plurality of periodic circuits, each periodic circuit has the same circuit, each periodic component has the same component, a shearing position is designed between each period, the shearing position can be sheared for use, a metal connection point is designed at the shearing position, the metal connection point is a connection point for interconnection of a plurality of lamp strips, or/and a connection point for connecting a power supply, the metal connection point is arranged on the front side or/and the back side, when the metal connection point is arranged on the front side, the metal connection point is covered by the waterproof glue, and when the waterproof glue is required to be used, the waterproof glue can be peeled off or removed for use.

According to a preferred embodiment of the present invention, the LED tape strip is characterized in that a double-sided adhesive tape is adhered to the back of a plurality of connected tape strips, and then the connected tape strips are cut into single tape strips, the double-sided adhesive tape is waterproof, moistureproof, insulating and fixed during installation and use, and the waterproof adhesive tape, the circuit board and the double-sided adhesive tape are respectively arranged on a cutting surface on the two longitudinal (longitudinal) side surfaces of the single tape strip.

According to a preferred embodiment of the present invention, the LED tape is characterized in that the waterproof adhesive is a filling adhesive with light blocking and light reflecting functions.

According to a preferred embodiment of the invention, the LED adhesive dripping lamp strip is characterized in that a layer of waterproof resin is further wrapped around the long direction of the lamp strip to manufacture a higher-grade waterproof lamp strip.

According to a preferred embodiment of the present invention, the LED tape is characterized in that a layer of transparent waterproof adhesive is applied on the tape, so as to increase the waterproof grade of the tape.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below.

Drawings

The features, objects, and advantages of the present invention will become more apparent from the description set forth below when taken in conjunction with the drawings, a brief description of which follows.

Fig. 1 is a schematic plan view of a flexible wiring board.

Fig. 2 is a schematic plan view of a plurality of connected bare lamp strips formed after the LED lamps are welded on the flexible circuit board.

Fig. 3 is a schematic cross-sectional view of a plurality of connected bare lamp strips formed after the LED lamps are welded on the flexible circuit board.

Fig. 4 is a schematic three-dimensional view of a plurality of connected bare lamp strips formed after the LED lamps are welded on the flexible circuit board.

Fig. 5 is a schematic elevation view of a glue dispensing line.

Fig. 6 is a side view of a glue dispensing line.

Fig. 7 is a three-dimensional schematic view of a plurality of connected bare lamp strips after being rolled up and dripped with glue.

Fig. 8 is a schematic cross-sectional view of a plurality of connected bare lamp strips after being rolled up and dripped with glue.

Fig. 9 is a schematic cross-sectional view of a plurality of connected bare lamp strips with double-sided adhesive tape adhered to the back surface after the bare lamp strips are completely rolled with adhesive tape.

Fig. 10 is a schematic perspective view of a waterproof LED strip that is cut into individual strips.

Fig. 11 is a schematic cross-sectional view of the flexible printed circuit board and the waterproof adhesive on the same cutting plane on the two side surfaces of the lamp strip facing the longitudinal direction (the longitudinal direction) after being cut into the single LED waterproof lamp strip.

Fig. 12 is a schematic cross-sectional view of a waterproof lamp strip manufactured by wrapping a layer of waterproof resin around the lamp strip in the longitudinal direction to form a higher-grade waterproof lamp strip.

Fig. 13 is a schematic transverse cross-sectional view of a single LED waterproof light strip.

Fig. 14 is a schematic transverse cross-sectional view of a layer of light-transmissive waterproof glue applied over a LED waterproof strip.

Detailed Description

The present invention will be described in detail below by taking preferred embodiments as examples.

It will be understood by those skilled in the art that the following descriptions are provided for purposes of illustration and description of certain preferred embodiments only and are not intended to limit the scope of the present invention.

The method comprises the steps of adopting a traditional circuit board manufacturing process, carrying out silk-screen printing of circuit anti-corrosion ink, baking and curing, etching, film stripping, silk-screen printing of front ink solder mask on a flexible copper-clad plate, exposing an element bonding pad 1.1 and a metal connection point 1.2, baking, character printing, baking and curing, OSP anti-oxidation surface treatment and the like to manufacture the flexible circuit board 1 (shown in figure 1), wherein in the step, a mark 1 in figure 1 indicates a flexible single-sided circuit board.

Or drilling a double-sided flexible copper-clad plate, depositing copper, plating copper, pasting a dry film, exposing and developing a scene, etching, removing a film, silk-screening front ink solder resist to expose an element bonding pad 1.1 and a metal connection point 1.2, baking, silk-screening back ink solder resist, baking, characters, baking, OSP anti-oxidation surface treatment and other processes to manufacture the flexible circuit board 1 (as shown in figure 1), wherein in the step, the mark 1 in figure 1 represents the flexible double-sided circuit board.

Adopt traditional SMT paster technology, on the tin cream printing machine, use the steel mesh to print the tin cream on flexible line way board 1's component pad 1.1, again with LED lamp pearl 2.1 and resistance 2.2 correspond paste dress to the pad 1.1 of having printed the tin cream, cross the reflow soldering welding, weld LED lamp pearl 2.1 and resistance 2.2 on flexible line way board 1, make into the naked lamp area of many disjunctors that has welded the LED lamp (as shown in fig. 2, fig. 3, fig. 4).

The whole roll of the connected naked lamp strip is unfolded and enters a horizontal adhesive transmission band 5.2 below a glue dropper to be stuck on the whole roll of the connected naked lamp strip, a horizontal platform 5.3 is arranged below the transmission band to be adsorbed and leveled, the glue dropper is arranged above the lamp strip and is provided with a plurality of glue dripping heads 5.1, two glue dripping heads 5.1 are respectively arranged at two sides and are used for dripping low-fluidity dam glue at the edge of the plate, a plurality of glue dripping heads 5.1 in the middle are used for dripping glue 3, each glue dripping head 5.1 in the middle is respectively aligned on a cutting line of a single cutting strip of the connected lamp strip, the transmission band is opened to adsorb the lamp strip to move forwards on the platform 5.3, all the glue dripping heads 5.1 are opened simultaneously, an automatic controller respectively controls the glue dripping amount of each glue dripping head 5.1 and transmits and moves forwards, the glue dripping heads 5.1 continuously drip glue at one side, the lamp strip after glue dripping enters a tunnel oven 5.4 under the driving of the transmission band 5.2, and is dried out of the tunnel oven, the adhesive is separated from the transmission band 5.2 (as shown in fig. 5 and 6), and the adhesive is dripped on the transmission band 3 and dried (as shown in fig. 7) until the whole roll of the integrated lamp strip is dried, in the process, the flexible circuit board 1 after the adhesive is dripped is adsorbed on the transmission band 5.2 on the horizontal platform 5.3 and keeps horizontal, the flexible circuit board is naturally flowed and connected into a whole and leveled and is uniformly distributed on the integrated bare lamp strip and then enters the tunnel furnace 5.4, the amount of the adhesive is dripped on the adhesive, the upper limit standard is controlled on the surface of the light emitting surface of the lamp bead 2.1 where the adhesive 3 does not flow (as shown in fig. 8 and 9), fig. 8 is a schematic cross-sectional view of the plurality of integrated bare lamp strips after the adhesive is dripped, and fig. 9 is a schematic sectional view of the double-sided adhesive pasted on the back surface of the plurality of integrated bare lamp strips after the adhesive is dripped.

The whole board with the solidified glue 3 is transferred to a slitting machine to be slit into single LED waterproof lamp strips (as shown in figure 10), the slit single LED waterproof lamp strips are longitudinally (longitudinally) divided into two side surfaces, namely a side surface 1.3a and a side surface 1.3b, the side surface of the flexible circuit board 1 on each side surface and the side surface of the solidified glue 3 are respectively arranged on the same cutter surface (as shown in figures 11 and 13)

According to the requirement, the single LED waterproof lamp strip shown in fig. 10 may be further wrapped with a layer of waterproof resin 5 around the long direction to manufacture a higher-grade LED waterproof lamp strip (as shown in fig. 12).

The invention adopts the whole roll of the plurality of connected naked lamp strips to carry out the whole roll of glue dripping, controls the glue to be parallel or nearly parallel to the light emitting surface of the lamp beads, and cuts the glue into the single LED waterproof lamp strip after the glue is cured, thereby replacing the LED lamp strip glue dripping and water proofing in the current industry, the LED lamp strip is coated with the glue and water proofing, the LED lamp strip is waterproof with the LED lamp strip coating sleeve, the material cost is low, and the plurality of lamp strip spliced plates are manufactured together, thereby greatly improving the production efficiency.

Description of the drawings: a layer of transparent waterproof glue 4 is applied on the LED waterproof strip to cover the upper surface of the strip, so as to increase the waterproof rating of the strip (as shown in fig. 14).

The invention is described in detail with reference to the drawings, wherein the drawings show a specific embodiment of the LED tape. It will be understood by those skilled in the art, however, that the foregoing is merely illustrative and descriptive of some specific embodiments and is not to be construed as limiting the scope of the invention, especially the scope of the claims.