CN111750292A

CN111750292A - LED hanging decoration lamp string and production method thereof

Info

Publication number: CN111750292A
Application number: CN202010638677.3A
Authority: CN
Inventors: 单西万; 刘启明; 李群林; 艾云东; 杨土秀; 张�杰
Original assignee: Zhuhai Bojay Electronics Co Ltd
Current assignee: Zhuhai Bojay Electronics Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-09

Abstract

The invention discloses an LED (light-emitting diode) pendant lamp string and a production method thereof, wherein the LED pendant lamp string comprises an LED lamp string and a plurality of decorating parts, the LED lamp string comprises three conducting wires, a plurality of surface mounted LEDs and a plurality of packaging colloid, part or all of the decorating parts are transparent or semitransparent, the decorating parts comprise a first shell and a second shell, the first shell and the second shell are buckled to form a containing cavity, and a plurality of lamp beads of the LED lamp string are respectively contained in the containing cavities of the decorating parts. According to the LED hanging decoration lamp string provided by the invention, when the LED lamp string is a series lamp string, the third conducting wire can increase the strength of the LED lamp string and prevent the patch LED from falling off when the LED lamp string is pulled; when the LED lamp string is a parallel lamp string, the third conducting wire is connected with the first conducting wire or the second conducting wire in parallel, so that the voltage attenuation speed is favorably reduced, and the LED lamp string is not limited by a power supply. Moreover, the LED pendant lamp string is suitable for automatic production and beneficial to reducing the labor cost.

Description

LED hanging decoration lamp string and production method thereof

Technical Field

The invention relates to the technical field of illumination, in particular to an LED pendant lamp string and a production method thereof.

Background

The LED lamp string is a decorative lamp decoration containing luminous lamp beads, wires and the like, and is widely applied to industries such as decoration, building, landscape and the like. The LED lamp string is pursued by people due to the characteristics of energy conservation, environmental protection, beautiful appearance, low price and the like. In order to improve the appearance and the service life of the product, the positions of the lamp beads of some LED lamp strings are provided with hanging decoration parts. The LED pendant lamp string is generally produced or purchased from the market, and then the pendant parts are assembled on the lamp beads manually, so that the assembly efficiency is low, the product cost is high, and the product quality cannot be guaranteed.

Disclosure of Invention

In view of the current state of the prior art, the invention aims to provide an LED pendant lamp string with high production efficiency and product quality and low production cost. The invention also provides a production method of the LED pendant lamp string.

In order to solve the above technical problem, the present invention provides an LED pendant lamp string, comprising: the LED lamp string comprises at least three wires, a plurality of surface-mounted LEDs and a plurality of packaging colloids, wherein the at least three wires are arranged side by side or are twisted together, each wire comprises a wire core and an insulating layer coated on the surface of the wire core, at least two wires of the at least three wires are respectively removed from the insulating layers at intervals of a set length along the axial direction of the at least three wires to form a plurality of pairs of opposite welding spots, each welding pin of the plurality of surface-mounted LEDs is respectively welded with each welding spot of the plurality of pairs of welding spots to enable the plurality of surface-mounted LEDs to be connected in parallel, in series or in series, and the plurality of packaging colloids are respectively coated on the surfaces of the plurality of surface-mounted; the LED lamp string comprises a lamp holder, a lamp bead, a plurality of decorating parts and a lamp string, wherein the decorating parts are partially or completely transparent or semitransparent, each decorating part comprises a first shell and a second shell, the first shell and the second shell are buckled to form a containing cavity, and the lamp beads of the LED lamp string are respectively contained in the containing cavities of the decorating parts.

According to the LED hanging decoration lamp string provided by the invention, the LED lamp string and the decoration can be produced automatically, so that the labor cost is reduced, the labor intensity is reduced, the production efficiency is effectively improved, and the finished product quality of the lamp string is improved; moreover, the decorative part can increase the appearance of the product and protect the lamp beads.

The invention provides a production method of an LED pendant lamp string, which comprises the following steps:

two wires are arranged on the ground side by side;

conveying the two leads to a wire stripping station, and removing the insulating layers of the two leads at a set interval to form a pair of opposite welding spots;

conveying a pair of welding points to a point welding material station, and coating welding materials on the surfaces of the pair of welding points;

conveying the pair of welding spots with the surfaces coated with welding materials to an LED mounting station, and respectively placing two welding feet of a surface-mounted LED on the pair of welding spots;

conveying the surface mounted LEDs placed on the pair of welding points to a welding station, and respectively welding two welding feet of the surface mounted LEDs with the pair of welding points;

conveying the welded SMD LEDs to a welding detection station, and detecting the welding quality of the SMD LEDs;

a third wire which is parallel to the two wires and is on the ground;

conveying the detected surface mounted LED and the third lead to a first packaging station, and packaging the parts of the surface mounted LED and the third lead corresponding to the position of the surface mounted LED in a packaging colloid to form a lamp bead;

conveying the lamp beads to a trimming station, judging whether trimming is carried out or not through a trimming mechanism, if so, alternately cutting off one of the two leads between two adjacent lamp beads, and if not, not cutting off the lead between two adjacent lamp beads;

the lamp beads are conveyed to a second packaging station, and if the conducting wire between two adjacent lamp beads is cut off, the lamp beads and the wire ends formed after the conducting wire is cut off are packaged in packaging glue together;

conveying the lamp beads to a hanging ornament assembly station, placing a first shell on one side of the lamp beads, and then pre-buckling and pressing a second shell and the first shell to form a decorating part, so that the lamp beads are accommodated in the decorating part; and

conveying the decoration to a welding station, and welding the first shell and the second shell together by using ultrasonic waves.

The invention provides another production method of an LED pendant lamp string, which is characterized by comprising the following steps:

at least three conducting wires are arranged on the ground side by side and connected into a whole;

conveying at least three leads to a wire stripping station, and removing insulation layers of at least two leads in the at least three leads at a set interval to form a pair of opposite welding points;

conveying the surface mounted LEDs placed at the pair of welding points to a welding station, and respectively welding the welding feet of the surface mounted LEDs with the welding points in the pair of welding points;

conveying the detected SMD LEDs to a first packaging station, and packaging the SMD LEDs in a packaging colloid to form lamp beads;

conveying the lamp beads to a trimming station, judging whether trimming is carried out or not through a trimming mechanism, if so, cutting off one lead between every two adjacent lamp beads, and if not, cutting off the lead between every two adjacent lamp beads;

the lamp beads are conveyed to a second packaging station, and if one lead between two adjacent lamp beads is cut off, the lamp beads and the leads formed after the lead is cut off are packaged in packaging glue together;

According to the production method of the LED pendant lamp string, the LED lamp string is automatically produced, and the ornament is assembled on the LED lamp string, so that the labor cost is reduced, the labor intensity is reduced, the production efficiency is effectively improved, and the finished product quality of the lamp string is improved.

The advantageous effects of the additional features of the present invention will be explained in the detailed description section of the present specification.

Drawings

FIG. 1 is a front view of an LED pendant light string according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of the LED light string of the LED pendant light string shown in FIG. 1;

FIG. 3 is a schematic circuit diagram of an LED light string of the LED pendant light string shown in FIG. 1;

FIG. 4 is a front view of the trim component of the LED pendant light string of FIG. 1;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;

FIG. 6 is an exploded view of the trim component of the LED pendant light string of FIG. 1;

FIG. 7 is an assembly view of the decorative member of the LED pendant light string and the LED light string shown in FIG. 1;

FIG. 8 is a schematic circuit diagram of an LED light string of an LED pendant light string according to a second embodiment of the present invention;

FIG. 9 is a schematic circuit diagram of an LED light string of an LED pendant light string according to a third embodiment of the present invention;

FIG. 10 is a schematic circuit diagram of an LED string of an LED pendant string of lights according to a fourth embodiment of the present invention;

fig. 11 is a schematic structural diagram of an LED string of an LED pendant string light according to a fifth embodiment of the present invention;

fig. 12 is a schematic circuit diagram of an LED string of an LED pendant string light according to a fifth embodiment of the present invention;

FIG. 13 is a schematic circuit diagram of an LED light string of an LED pendant light string according to a sixth embodiment of the present invention;

FIG. 14 is a schematic circuit diagram of an LED light string of an LED pendant light string according to a seventh embodiment of the present invention;

fig. 15 is a schematic circuit diagram of an LED string of an LED pendant string light according to an eighth embodiment of the present invention;

FIG. 16 is a front view of an LED pendant light string according to a ninth embodiment of the invention;

FIG. 17 is a front view of the trim component of the LED pendant light string of FIG. 16;

FIG. 18 is a cross-sectional view taken along line C-C of FIG. 17;

FIG. 19 is an exploded view of the trim component of the LED pendant light string shown in FIG. 16;

FIG. 20 is an assembly view of the decorative member and LED light string of the LED pendant light string illustrated in FIG. 16;

FIG. 21 is a flow chart of a method of producing an LED pendant light string in accordance with one embodiment of the present invention;

FIG. 22 is a flow chart of a method for producing an LED pendant light string according to another embodiment of the invention.

Description of reference numerals: 10. an LED light string; 11. a first conductive line; 12. a second conductive line; 13. a third conductive line; 14. a surface-mounted LED; 15. packaging the colloid; 16. a jumper wire; 17. a lamp bead; 18. a fourth conductive line; 19. a fifth conductive line; 20. a decorative member; 201. an accommodating chamber; 21. a first housing; 211. an opening; 212. a wire pressing concave part; 213. a first flange; 214. a card slot; 22. a second housing; 221. a wire pressing convex part; 222. a second flange; 223. hooking; 224. and (5) buckling.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

Fig. 1 is a front view of an LED pendant lamp string according to a first embodiment of the invention. As shown in fig. 1, the LED pendant string in this embodiment includes an LED string 10 and a plurality of partially or completely transparent or translucent decorative pieces 20.

Fig. 2 is a schematic structural diagram of the LED string 10 of the LED pendant string shown in fig. 1. As shown in fig. 2, the LED light string 10 includes a first wire 11, a second wire 12, a third wire 13, a plurality of patch LEDs 14, and a plurality of molding compounds 15, wherein the first wire 11, the second wire 12, and the third wire 13 are arranged side by side, and each of the first wire 11, the second wire 12, and the third wire 13 includes a wire core (not shown) and an insulating layer (not shown) covering a surface of the wire core. The first, second, and third

conductive wires

11, 12, and 13 in this embodiment may be a rubber covered wire or an enameled wire. The first wire 11 and the second wire 12 are removed from their insulating layers at intervals of a predetermined length along the axial direction to form a plurality of first welding points (not shown) and a plurality of second welding points (not shown), and the positions of the plurality of second welding points correspond to the positions of the plurality of first welding points one-to-one to form a plurality of welding lamp zones.

The plurality of patch LEDs 14 are respectively arranged at the plurality of welding lamp areas, two welding pins of the patch LED14 are respectively welded on a first welding point and a second welding point of the corresponding welding lamp area, the positions of the anode and the cathode of two adjacent patch LEDs 14 are opposite, the first lead 11 and the second lead 12 between every two adjacent patch LEDs 14 are alternately cut off, namely the first lead 11 between the two adjacent previous patch LEDs 14 is cut off, the second lead 12 is not cut off, the first lead 11 between the two adjacent next patch LEDs 14 is not cut off, the second lead 12 is cut off, and the steps are repeated so as to connect the plurality of patch LEDs 14 in series.

The plurality of encapsulant 15 respectively covers the surface of the plurality of patch LEDs 14 and the surface of the third wire 13 corresponding to the plurality of patch LEDs 14 to form a plurality of beads 17.

Fig. 3 is a schematic circuit diagram of the LED string 10 of the LED pendant string shown in fig. 1. In use, one ends of the first wire 11 and the third wire 13 are electrically connected, and the other ends of the first wire 11 and the third wire 13 are respectively connected to a negative electrode and a positive electrode of a driving power supply (not shown in the figure).

The LED light string 10 in this embodiment is a series light string, and can be powered by a high voltage power supply (e.g., 220V power supply); furthermore, the third conductive wire 13 is connected to the first conductive wire 11 and the second conductive wire 12 through the encapsulant 15, which is beneficial to increase the strength of the LED light string 10 and prevent the patch LED14 from falling off when the LED light string 10 is pulled.

Fig. 4 is a front view of the decorative element 20 of the LED pendant light string shown in fig. 1, fig. 5 is a cross-sectional view taken along C-C of fig. 4, fig. 6 is an exploded view of the decorative element 20 of the LED pendant light string shown in fig. 1, and fig. 7 is an assembled view of the decorative element 20 of the LED pendant light string shown in fig. 1 and the LED light string 10. As shown in fig. 4 to 7, the decoration 20 in this embodiment includes a first casing 21 and a second casing 22, the first casing 21 is made of a translucent material, the first casing 21 is an ellipsoid (or a sphere), an opening 211 is provided on the first casing 21, the second casing 22 covers the opening 211, and the second casing 22 and the first casing 21 form an accommodating cavity 201 to be accommodated in the accommodating cavity 201. The decorative part 20 can improve the beauty of the product and also can play a role in protecting the lamp beads 17. Preferably, in the present embodiment, the lamp bead 17 is located at the opening 211 of the first casing 21, and the light emitting surface of the patch LED14 in the lamp bead 17 faces the first casing 21.

In order to prevent water from entering the accommodating chamber 201, the first housing 21 is hermetically connected to the second housing 22. For the convenience of processing, the first case 21 and the second case 22 are ultrasonically welded. Ultrasonic bonding not only welds efficiently, and is sealed effectual moreover, can prevent that liquid such as product rainwater from getting into the decoration inside when outdoor use.

In order to fix the LED light string 10, the first housing 21 is provided with a pressing line concave 212, the second housing 22 is provided with a pressing line convex 221 matching with the pressing line concave 212, and the first, second and

third wires

11, 12 and 13 are sandwiched between the pressing line convex 221 and the pressing line concave 212.

Preferably, the first housing 21 includes a first flange 213 surrounding the opening 211, the second housing 22 includes a second annular flange 222, the second flange 222 has an inner diameter larger than an outer diameter of the first flange 213, and the first flange 213 is inserted into the second flange 222. The first flange 213 and the second flange 222 facilitate the alignment of the first housing 21 and the second housing 22 during the process; moreover, the first flange 213 and the second flange 222 can increase the welding area, and the welding is more firm.

Preferably, the opening 211 is provided at one end of the stub shaft of the first housing 21 and the other end of the stub shaft of the first housing 21 is provided with a protruding ring, so that the decoration 20 has a lantern-like appearance.

To facilitate securing the light string, a hook 223 is disposed on the top surface of the second housing 22.

Fig. 8 is a schematic circuit diagram of the LED light string 10 according to the second embodiment of the invention. The LED light string 10 in this embodiment has substantially the same structure as the first embodiment, except that: every two adjacent patch LEDs 14 (4 in this embodiment) form a light emitting unit, the patch LEDs 14 in each light emitting unit are connected in parallel, the positions of the positive electrode and the negative electrode of every two adjacent light emitting units are opposite, and the first lead 11 and the second lead 12 between every two adjacent light emitting units are cut off alternately, so that the patch LEDs 14 are connected in a series-parallel connection mode after being connected in series.

The LED light string 10 in this embodiment is a series-parallel light string, and may be powered by a medium-high voltage power supply (e.g., 110V power supply). Furthermore, the third conductive wire 13 is connected to the first conductive wire 11 and the second conductive wire 12 through the encapsulant 15, which is beneficial to increasing the strength of the LED light string 10 and preventing the patch LED14 from falling off when the LED light string 10 is pulled.

Fig. 9 is a schematic circuit diagram of an LED light string 10 according to a third embodiment of the present invention, and as shown in the drawing, the LED light string 10 has substantially the same structure as the LED light string 10 according to the first embodiment, except that a plurality of patch LEDs 14 are connected in parallel through a first wire 11 and a second wire 12, the positions of the positive electrodes and the negative electrodes of a plurality of patch LEDs 14 are the same, and a third wire 13 is connected to the first wire 11 or the second wire 12 through at least one jumper 16. In use, the first conductor 11 is connected to the negative pole of the drive power supply, and the second conductor 12 and the third conductor 13 are connected to the negative pole of the drive power supply.

The LED light string 10 in this embodiment is a parallel light string, and may be powered by a low voltage power supply (e.g., 3V power supply). Moreover, the third conducting wire 13 is connected with the second conducting wire 12 in parallel, which is equivalent to increase the cross-sectional area of the second conducting wire 12, thereby effectively reducing the voltage attenuation and being beneficial to improving the light-emitting effect; furthermore, the third conductive wire 13 is connected to the first conductive wire 11 and the second conductive wire 12 through the encapsulant 15, which is beneficial to increasing the strength of the LED light string 10 and preventing the patch LED14 from falling off when the LED light string 10 is pulled.

Fig. 10 is a schematic circuit diagram of an LED light string 10 according to a fourth embodiment of the present invention, and as shown in the drawing, the LED light string 10 has substantially the same structure as the LED light string 10 according to the third embodiment, except that the positions of the positive electrodes and the negative electrodes of the patch LEDs 14 are opposite. The LED lamp string 10 provided by the invention is a parallel lamp string, and can realize the lamp string alternative flashing by using the 3V voltage supplied alternatively.

Fig. 11 is a schematic structural diagram of an LED string of an LED pendant string according to a fifth embodiment of the present invention, and fig. 12 is a schematic circuit diagram of an LED string of an LED pendant string according to a fifth embodiment of the present invention. As shown in fig. 11 and 12, the LED light string 10 in the present embodiment has substantially the same structure as the LED light string 10 in the first embodiment, except that the first conducting wire 11, the second conducting wire 12 and the third conducting wire 13 of the LED light string 10 in the present embodiment are rubber wires, and the insulating layers of the first conducting wire 11, the second conducting wire 12 and the third conducting wire 13 are connected together. The first wire 11 and the second wire 12 remove insulating layers at intervals of a set length along the axial direction to form a plurality of pairs of opposite first welding points, the second wire 12 and the third wire 13 remove insulating layers at intervals of a set length along the axial direction to form a plurality of pairs of opposite second welding points, the plurality of pairs of first welding points and the plurality of pairs of second welding points are arranged at intervals one by one along the axial direction of the wires, two welding pins of a part of patch LEDs 14 in the plurality of pairs of patch LEDs 14 are respectively welded with two first welding points in the plurality of pairs of first welding points, the positions of the positive electrodes and the positions of the negative electrodes of the part of patch LEDs 14 are arranged in the same mode, two welding pins of the rest patch LEDs 14 in the plurality of patch LEDs 14 are respectively welded with two second welding points in the plurality of pairs of second welding points, and the positions of the positive electrodes and the negative electrodes of the rest patch LEDs 14 are arranged in the same mode.

In the LED pendant lamp string in this embodiment, the second wire 12 is a common wire end, and the lamp string flashes alternately or lights normally by using an alternate power supply or a simultaneous power supply of 3V.

Fig. 13 is a schematic circuit diagram of an LED string of an LED pendant string according to a sixth embodiment of the invention. As shown in fig. 13, the LED light string 10 in this embodiment is substantially the same as the LED light string 10 in the fifth embodiment, except that the first conductive wires 11 and the second conductive wires 12 are axially spaced apart by a predetermined length to form a plurality of pairs of opposite first solder points, each two pairs of adjacent first solder points are a group, the second conductive wires 12 and the third conductive wires 13 are axially spaced apart by a predetermined length to form a plurality of pairs of opposite second solder points, each two pairs of adjacent second solder points are a group, the first conductive wires 11 and the third conductive wires 13 are axially spaced apart by a predetermined length to form a plurality of pairs of opposite third solder points, each two pairs of adjacent third solder points are a group, each group of first solder points, each group of second solder points and each group of third solder points are axially spaced apart from one another, each two adhesive LEDs 14 are a group, the positive and negative electrodes of each group of adhesive LEDs 14 are oppositely disposed, the solder tails of the two patch LEDs 14 in each group of patch LEDs 14 are soldered to solder points in each group of first solder points or each group of second solder points or each group of third solder points.

The LED pendant lamp string in the embodiment is a three-wire six-circuit LED lamp string, and when the LED pendant lamp string is used, programmable control voltage is used to realize programmable flickering or constant lighting of the lamp string.

Fig. 14 is a schematic circuit diagram of an LED string of an LED pendant string according to a seventh embodiment of the present invention. As shown in fig. 14, the LED light string 10 in this embodiment has substantially the same structure as the LED light string 10 in the fifth embodiment, except that the LED light string 10 includes a first wire 11, a second wire 12, a third wire 13 and a fourth wire 18, the first wire 11, the second wire 12, the third wire 13 and the fourth wire 18 are removed from their insulating layers at intervals of a predetermined length along the axial direction to form a plurality of pairs of opposite solder joints, the patch LED14 is an RGB LED, and four solder joints of the RGB LEDs are respectively soldered to four solder joints of the pairs of solder joints.

In the LED pendant lamp string of this embodiment, the RGB LED is a programmable LED lamp bead, and this lamp bead is provided with a built-in IC capable of burning a program, and can emit a plurality of colors, and after the lamp bead is welded on the wire, the power supply controls the flashing and extinguishing of the lamp bead through the second wire 12 (control signal line) and the third wire 13 (control signal line), and emits the light without colors according to the difference of the signals.

Fig. 15 is a schematic circuit diagram of an LED string of an LED pendant string according to an eighth embodiment of the present invention. As shown in fig. 15, the LED light string 10 in the present embodiment has substantially the same structure as the LED light string 10 in the seventh embodiment, except that a fifth conducting wire 19 is further included, and the fifth conducting wire 19 is connected in parallel with the fourth conducting wire 18.

In the LED pendant lamp string in this embodiment, the fifth wire 19 is added, and the fifth wire 19 is connected to the tail end of the fourth wire 18, so that the voltage attenuation can be reduced, and the length of the lamp string can be increased.

As shown in fig. 16-20, the structure of the LED pendant light string in the present embodiment is substantially the same as the structure of the LED pendant light string in the first embodiment, except that: the first shell 21 is a hemisphere, the second shell 22 is a hemisphere, and the first shell 21 and the second shell 22 are buckled to form a sphere.

Preferably, the first housing 21 is provided with at least one card slot 214, the second housing 22 is provided with at least one latch 224 matched with the at least one card slot 214, and the latch 224 is latched in the card slot 214. During processing, the snap 224 and the snap groove 214 can facilitate the alignment of the first housing 21 and the second housing 22; moreover, the buckle 224 and the card slot 214 can make the connection between the first shell 21 and the second shell 22 more firm.

The invention further provides a production method of the LED pendant lamp string, and the production method is suitable for production of the LED pendant lamp string with the enameled wire as the conducting wire. As shown in fig. 21, the production method includes the steps of:

step S1, the first conductor 11 and the second conductor 12 are wired. The first wire 11 and the second wire 12 are arranged on the ground side by side through the first wire and second wire feeding mechanisms.

And step S2, stripping wires. The first lead 11 and the second lead 12 are conveyed to a wire stripping station through a lead conveying mechanism, insulation layers on the surfaces of the first lead 11 and the second lead 12 are removed at intervals of a set interval through the wire stripping mechanism to form a first welding point and a second welding point, and the position of the first welding point corresponds to the position of the second welding point.

And step S3, spot welding the materials. The first welding point and the second welding point are conveyed to a point welding material station through a lead conveying mechanism, and welding materials are coated on the surfaces of the first welding point and the second welding point of the first lead 11 and the second lead 12 through the point welding material mechanism, wherein the welding materials in the embodiment are tin paste.

Step S4, mounting the patch LED 14. The first welding point and the second welding point with the surfaces coated with the welding materials are conveyed to the LED mounting station through the wire conveying mechanism, and two welding feet of the SMD LED14 are respectively mounted on the first welding point and the second welding point through the LED placing mechanism.

And step S5, welding. The patch LED14 placed on the first solder joint and the second solder joint is transported to the welding station by the wire transport mechanism, and the two lamp pins of the patch LED14 are welded to the first solder joint and the second solder joint of the first wire 11 and the second wire 12 by the welding mechanism.

And step S6, welding detection. The welded patch LED14 is conveyed to a welding detection station through a wire conveying mechanism, and the welding quality of the patch LED14 is detected through the welding detection mechanism.

Step S7, the third wire 13 is laid alongside the first wire 11 and the second wire 12 by the third wire 13 laying mechanism.

And step S8, packaging for the first time. The third lead 13 and the detected patch LED14 are conveyed to a first packaging station through a lead conveying mechanism, and the parts of the patch LED14 and the third lead 13, which are opposite to the patch LED14, are packaged in a packaging colloid 15 through the first packaging mechanism to form a lamp bead 17.

And step S9, trimming. The lamp beads 17 are conveyed to the trimming station through the wire conveying mechanism, whether trimming is conducted or not is judged through the trimming mechanism, if yes, the first wire 11 or the second wire 12 between every two adjacent patch LEDs 14 is trimmed, and if not, the first wire 11 or the second wire 12 between every two adjacent lamp beads 17 is not trimmed.

And step S10, packaging for the second time. The lamp beads 17 are conveyed to a second packaging station through the lead conveying mechanism, and if the first lead 11 or the second lead 12 between two adjacent lamp beads 17 is cut off, the second packaging mechanism packages the package colloid 15 and a wire head formed after the first lead 11 or the second lead 12 is cut off in the package colloid 15.

Step S11, the lamp beads 17 are conveyed to a hanging ornament assembly station through a wire conveying mechanism, the first shell 21 is placed on one side of the lamp beads 17, the second shell 22 and the first shell 21 are pre-buckled and pressed to form the decorating part 20, and the lamp beads 17 are accommodated in the decorating part 20. Specifically, the first housing 21 is automatically fed by a first housing 21 feeding mechanism, and the first housing 21 feeding mechanism includes a vibration plate and a positioning jig. The second housing 22 is automatically fed by a second housing 22 feed mechanism, which includes a vibratory pan and a positioning fixture, for the second housing 22. Then, the manipulator is moved through three X, Y and Z axes, the second shell 22 is adsorbed and moved to the station of the first shell 21, and pre-buckling and press-fitting assembly is realized.

Step S12, the garnish 20 is conveyed to a welding station, and the first case 21 and the second case 22 are welded together using ultrasonic waves.

The production method of the LED pendant lamp string provided by the invention can produce the LED pendant lamp string in series, parallel or series-parallel connection, and the produced LED pendant lamp string can supply power to the lamp string by adopting high voltage or low voltage, thereby expanding the power supply condition of the power supply of the LED pendant lamp string and widening the use occasions of the LED pendant lamp string; moreover, the first shell 21 and the second shell 22 of the decorating part 20 are welded by ultrasonic waves, so that the decorating part is attractive in appearance, high in welding speed and greatly improved in production efficiency.

Fig. 22 shows a method for producing an LED pendant lamp string according to another embodiment of the present invention, the method in this embodiment is suitable for producing an LED pendant lamp string with rubber wires as conducting wires, the conducting wires may be three or more, and three conducting wires are taken as an example for description. As shown in fig. 22, the production method includes the steps of:

step S1, the first wire 11, the second wire 12 and the third wire 13 are wired.

And step S2, stripping wires. The first conducting wire 11, the second conducting wire 12 and the third conducting wire 13 are conveyed to a wire stripping station through a conducting wire conveying mechanism, insulation layers of the first conducting wire 11 and the second conducting wire 12 are removed at set intervals through the wire stripping mechanism to form opposite first welding points and second welding points, and/or insulation layers of the first conducting wire 11 and the third conducting wire 13 are removed to form opposite first welding points and third welding points, and/or insulation layers of the second conducting wire 12 and the third conducting wire 13 are removed to form opposite second welding points and third welding points.

And step S3, spot welding the materials. The first welding point and the second welding point and/or the first welding point and the third welding point and/or the second welding point and the third welding point are/is conveyed to a point welding material station through a lead conveying mechanism, and welding materials are coated on the surfaces of the first welding point and the second welding point and/or the first welding point and the third welding point and/or the second welding point and the third welding point through the point welding material mechanism, wherein the welding materials in the embodiment are tin paste.

Step S4, mounting the patch LED 14. The first welding point and the second welding point and/or the first welding point and the third welding point and/or the second welding point and the third welding point, the surfaces of which are coated with welding materials, are conveyed to an LED mounting station through a lead conveying mechanism, and two welding feet of the SMD LED14 are respectively mounted on the first welding point and the second welding point or the first welding point and the third welding point or the second welding point and the third welding point through an LED placing mechanism.

And step S5, welding. The chip LEDs 14 placed on the first welding point and the second welding point or the first welding point and the third welding point and/or the second welding point and the third welding point are conveyed to a welding station through a lead conveying mechanism, and two lamp pins of the chip LEDs 14 are welded with the first welding point and the second welding point or the first welding point and the third welding point or the second welding point and the third welding point respectively through the welding mechanism.

And step S7, packaging for the first time. The paster LED14 after detecting is carried to first encapsulation station through wire conveying mechanism, forms lamp pearl 17 through first encapsulation mechanism with paster LED14 encapsulation in packaging colloid 15.

And step S8, trimming. The lamp beads 17 are conveyed to the thread cutting station through the thread conveying mechanism, whether thread cutting is conducted or not is judged through the thread cutting mechanism, if yes, one thread between every two adjacent patch LEDs 14 is cut off, and if not, the thread between every two adjacent lamp beads 17 is not cut off.

And step S9, packaging for the second time. The lamp beads 17 are conveyed to a second packaging station through the lead conveying mechanism, and if the leads between two adjacent lamp beads 17 are cut off, the second packaging mechanism packages the package colloid 15 and the wire heads formed after the leads are cut off in the package colloid 15.

Step S10, the lamp beads 17 are conveyed to a hanging ornament assembly station through a wire conveying mechanism, the first shell 21 is placed on one side of the lamp beads 17, the second shell 22 and the first shell 21 are pre-buckled and pressed to form the decorating part 20, and the lamp beads 17 are accommodated in the decorating part 20. Specifically, the first housing 21 is automatically fed by a first housing 21 feeding mechanism, and the first housing 21 feeding mechanism includes a vibration plate and a positioning jig. The second housing 22 is automatically fed by a second housing 22 feed mechanism, which includes a vibratory pan and a positioning fixture, for the second housing 22. Then, the manipulator is moved through three X, Y and Z axes, the second shell 22 is adsorbed and moved to the station of the first shell 21, and pre-buckling and press-fitting assembly is realized.

Step S11, the garnish 20 is conveyed to a welding station, and the first case 21 and the second case 22 are welded together using ultrasonic waves.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An LED pendant light string comprising:

the LED lamp string comprises at least three wires, a plurality of surface-mounted LEDs and a plurality of packaging colloids, wherein the at least three wires are arranged side by side or are twisted together, each wire comprises a wire core and an insulating layer coated on the surface of the wire core, at least two wires of the at least three wires are respectively removed from the insulating layers at intervals of a set length along the axial direction of the at least three wires to form a plurality of pairs of opposite welding spots, each welding pin of the plurality of surface-mounted LEDs is respectively welded with each welding spot of the plurality of pairs of welding spots to enable the plurality of surface-mounted LEDs to be connected in parallel, in series or in series, and the plurality of packaging colloids are respectively coated on the surfaces of the plurality of surface-mounted; and

the LED lamp string comprises a plurality of decorating parts, wherein part or all of the decorating parts are transparent or semitransparent, each decorating part comprises a first shell and a second shell, the first shell and the second shell are buckled to form a containing cavity, and the plurality of lamp beads of the LED lamp string are respectively contained in the containing cavities of the decorating parts.

2. The LED pendant lamp string according to claim 1, comprising a first wire, a second wire and a third wire, wherein the first wire and the second wire are axially spaced at a predetermined length to form a plurality of pairs of opposite solder joints, two solder tails of the plurality of SMD LEDs are respectively soldered to two solder joints of the plurality of pairs of solder joints, the positions of the positive electrodes and the negative electrodes of every two adjacent SMD LEDs are opposite, the first wire and the second wire between every two adjacent SMD LEDs are alternately cut off to connect the plurality of SMD LEDs in series, and the wire ends formed by cutting off the first wire and the second wire are packaged in the packaging adhesive.

3. The LED pendant light string of claim 1, comprising a first wire, a second wire, and a third wire, the first lead and the second lead remove the insulating layers at intervals along the axial direction with a set length to form a plurality of pairs of opposite welding spots, two welding feet of a plurality of patch LEDs are respectively welded with two welding spots of the plurality of pairs of welding spots, at least two adjacent patch LEDs form a light-emitting unit, the positions of the anode and the cathode of the patch LED in each light-emitting unit are arranged in the same way, and the positions of the anode and the cathode of each two adjacent light-emitting units are arranged in the opposite way, and the first lead and the second lead between every two adjacent light-emitting units are cut off alternately to connect the plurality of patch LEDs in series-parallel, and the wire ends formed by cutting the first lead and the second lead are packaged in the packaging colloid.

4. The LED pendant lamp string according to claim 1, comprising a first wire, a second wire and a third wire, wherein the first wire and the second wire are axially spaced at a predetermined length to remove insulating layers thereof to form a plurality of pairs of opposite welding spots, two welding feet of the plurality of SMD LEDs are respectively welded with two welding spots of the plurality of pairs of welding spots, the positions of the anodes and the cathodes of the plurality of SMD LEDs are arranged in the same or opposite directions, so that the plurality of SMD LEDs are connected in parallel or alternately in parallel in the positive and negative directions, and the third wire is electrically connected with the first wire or the second wire through at least one jumper wire.

5. The LED pendant lamp string according to claim 1, comprising a first wire, a second wire and a third wire, wherein the first wire and the second wire are axially spaced apart by a predetermined length to form a plurality of pairs of first opposite solder joints, the second wire and the third wire are axially spaced apart by a predetermined length to form a plurality of pairs of second opposite solder joints, the pairs of first solder joints and the pairs of second solder joints are axially spaced apart by a predetermined length, two solder joints of a part of the plurality of pairs of SMD LEDs are respectively soldered to two first solder joints of the plurality of pairs of first solder joints, and positions of anodes and cathodes of the part of SMD LEDs are arranged in the same manner, two solder joints of the rest of the plurality of SMD LEDs are respectively soldered to two second solder joints of the plurality of pairs of second solder joints, and the positions of the anode and the cathode of the rest of the SMD LEDs are arranged in the same way.

6. The LED pendant lamp string according to claim 1, comprising a first wire, a second wire and a third wire, wherein the first wire and the second wire are axially spaced apart by a predetermined length to form a plurality of pairs of opposing first solder joints, each adjacent pair of the first solder joints is in one set, the second wire and the third wire are axially spaced apart by a predetermined length to form a plurality of pairs of opposing second solder joints, each adjacent pair of the second solder joints is in one set, the first wire and the third wire are axially spaced apart by a predetermined length to form a plurality of pairs of opposing third solder joints, each adjacent pair of the third solder joints is in one set, each set of the first solder joints, each set of the second solder joints and each set of the third solder joints are arranged one by one along the axial direction of the wires, every two adjacent paster LEDs are in a group, the positions of the anode and the cathode of each group of paster LEDs are arranged oppositely, and the welding feet of the two paster LEDs in each group of paster LEDs are welded with the welding points in each group of first welding points or each group of second welding points or each group of third welding points.

7. The LED pendant lamp string according to claim 1, comprising a first wire, a second wire, a third wire and a fourth wire, wherein the first wire, the second wire, the third wire and the fourth wire are formed into a plurality of pairs of opposite welding spots by removing insulation layers at intervals of a set length along an axial direction of the first wire, the second wire, the third wire and the fourth wire, the SMD LEDs are RGB LEDs, and four welding feet of the RGB LEDs are respectively welded with four welding spots of the welding spots.

8. The LED pendant light string of claim 7, further comprising a fifth wire, wherein the fifth wire is electrically connected to the fourth wire by at least one jumper.

9. The LED pendant light string according to claims 1-8, wherein one of the first housing and the second housing is provided with a line pressing recess, and the other is provided with a line pressing protrusion engaged with the line pressing recess, and at least three of the wires are sandwiched between the line pressing protrusion and the line pressing recess.

10. The LED pendant lamp string according to any one of claims 1-8, wherein the first casing is a sphere or an ellipsoid, the first casing is provided with an opening, the lamp bead is located at the opening, the light emitting surface of the patch LED of the lamp bead faces the first casing, and the second casing covers the opening.

11. The LED pendant light string of claims 1-8, wherein the first housing and the second housing are hemispheres that snap fit together to form a sphere.

12. A production method of an LED pendant lamp string is characterized by comprising the following steps:

two wires are arranged on the ground side by side;

a third wire which is parallel to the two wires and is on the ground;

13. A production method of an LED pendant lamp string is characterized by comprising the following steps:

conveying the pair of welding spots with the surfaces coated with welding materials to an LED mounting station, and respectively placing welding feet of a surface-mounted LED on the pair of welding spots;