A light string stranding machine

Abstract

The utility model discloses a kind of lamp string stranding machines, belong to lamp string processing technical field, including rack (1), wire feeding device (2), lamp string feeding device (3) and stranding device (4) are sequentially arranged on rack (1), stranding device (4) includes the material receiving roller assembly (12) being set on third support (11) and first drive motor (13), second drive motor (14), material receiving roller assembly (12) includes the material receiving roller support (15) rotationally set on third support (11), and the material receiving roller body (16) rotationally set on material receiving roller support (15), material receiving roller support (15) rotates around Y axis under the drive of first drive motor (13), material receiving roller body (16) rotates around X axis under the drive of second drive motor (14), the utility model completes the whole process automation production processing that wire and lamp string are in feeding conveying, tension adjustment control, stranding winding to winding.

Description

Technical Field

[0001] This utility model belongs to the field of light string processing technology, specifically relating to a light string twisting machine that realizes automatic winding and coiling of light strings and wires. Background Technology

[0002] A single power cord for a string of lights is usually thin and easily breaks during pulling, hanging, and storage, causing damage to the string. By twisting together one or more thicker and stronger wires, the tensile strength of the entire cable can be significantly increased, and the voltage of the string can be increased to ensure the brightness of each small LED.

[0003] Utility model application CN01222409.X discloses a string light twisting device, which includes a reverse twisting cable, a forward twisting cable, a hook hole plate, and a mounting plate. In use, one end of the single-strand wire for making the string light is hung on the hook of the forward twisting cable. Pulling the other end of the wire causes the forward twisting cable to rotate rapidly within the through-hole due to the figure-eight shape of the through-hole. This simultaneously twists the single-strand wire on the hook into a semi-finished single-strand wire. The semi-finished wire is then folded in half, and the two ends with the light heads are simultaneously hung on the hook of the reverse twisting cable. Pulling the wire in the same way successfully twists the two semi-finished single-strand wires together under the rotational force of the reverse twisting cable. However, this string light twisting device relies on manual twisting, making the quality of the string light highly dependent on worker experience, resulting in low efficiency and failing to meet the needs of large-scale production.

[0004] Utility model application CN200920051953.5 discloses a Christmas light string twisting machine, including a planetary gear mechanism. The planetary carrier has at least two feed reels and corresponding positioning holes. The cable on the feed reel passes through the positioning holes, then is wound onto the take-up reel via a traction roller. The take-up reel, traction roller, and sun gear in the planetary gear mechanism are all driven by external force, allowing for continuous twisting of ordinary, relatively short light strings. However, while this Christmas light string twisting machine achieves mechanical twisting, its simple structure makes it unsuitable for large-scale light string production. Furthermore, the machine lacks precise tension control over the light strings and wires, making it prone to damaging the wires and LEDs during conveying and winding, thus affecting the quality of the finished light strings. Utility Model Content

[0005] The purpose of this invention is to overcome the technical problems of existing stranding machines being unsuitable for large-scale automated production and processing of light strings, and to provide a light string stranding machine specifically designed for large-scale production of LED beads, enabling automatic winding and coiling of light strings and wires, ensuring high-efficiency, high-quality, and high-consistency stranding and neat coiling operations between light strings and wires, thereby improving the quality of finished light string products.

[0006] To solve the above-mentioned technical problems, this utility model provides a string light twisting machine, including a frame. A wire feeding device, a string light feeding device, and a twisting device are sequentially arranged on the frame. The wire feeding device includes a first feeding roller assembly and a first tensioning roller assembly mounted on a first support. The string light feeding device includes a second feeding roller assembly and a second tensioning roller assembly mounted on a second support. The twisting device includes a take-up roller assembly mounted on a third support, a first drive motor, and a second drive motor. The take-up roller assembly includes a take-up roller bracket rotatably mounted on the third support and a take-up roller body rotatably mounted on the take-up roller bracket. The take-up roller bracket rotates around the Y-axis under the drive of the first drive motor, and the take-up roller body rotates around the X-axis under the drive of the second drive motor. The rotation axis of the take-up roller bracket is perpendicular to the rotation axis of the take-up roller body.

[0007] As a further improvement of this utility model, the third bracket described above has a wire inlet ring provided on the side facing the string light feeding device via a first bearing seat. The wire inlet ring is located between the string light feeding device and the stranding device, and a heating cylinder is provided between the wire inlet ring and the string light feeding device. A first wire inlet channel is formed in the center of the wire inlet ring. The third bracket has a first rotating shaft provided on the side away from the string light feeding device via a second bearing seat. The first rotating shaft is distributed along the Y-axis direction. The output shaft of the first drive motor is connected to the input end of the first rotating shaft. The take-up roller bracket is located between the wire inlet ring and the first rotating shaft. The side of the take-up roller bracket facing the string light feeding device is connected to the wire inlet ring, and the side of the take-up roller bracket away from the string light feeding device is connected to the output end of the first rotating shaft.

[0008] As a further improvement of this utility model, the above-mentioned take-up roller bracket has a first through hole on the side facing the light string feeding device. The first through hole is sleeved with the wire inlet ring and is connected to the first wire inlet channel. The take-up roller bracket has a second through hole on the side away from the light string feeding device. The second through hole is sleeved with the output end of the first rotating shaft. The first rotating shaft has a third through hole inside along its own axial direction for the second rotating shaft to be inserted. A bearing is provided between the third through hole and the second rotating shaft. The output shaft of the second drive motor is connected to the input end of the second rotating shaft. The output end of the second rotating shaft passes through the second through hole and is connected to the take-up roller body.

[0009] As a further improvement of this utility model, the above-mentioned receiving roller bracket is rotatably provided with a third rotating shaft and a fourth rotating shaft along the X-axis direction. The third rotating shaft is used to install the receiving roller body. A first transmission gear is provided on the third rotating shaft. The fourth rotating shaft is located on the side of the third rotating shaft away from the light string feeding device. A second transmission gear and a first bevel gear are respectively provided on the fourth rotating shaft. A first transmission chain is provided between the first transmission gear and the second transmission gear. A second bevel gear is provided at the output end of the second rotating shaft passing through the second through hole. The first bevel gear meshes with the second bevel gear.

[0010] As a further improvement of this utility model, a reciprocating screw is rotatably arranged on the above-mentioned receiving roller bracket along the X-axis direction, and the reciprocating screw is located on the side of the third rotating shaft facing the light string feeding device. A nut and a third transmission gear are respectively arranged on the reciprocating screw. The nut slides in cooperation with the reciprocating screw, and a second wire inlet channel for wires and light strings to pass through is provided on the nut. A fourth transmission gear is also arranged on the third rotating shaft, and a second transmission chain is arranged between the third transmission gear and the fourth transmission gear.

[0011] As a further improvement of this utility model, a fifth rotating shaft is provided on the first bracket via a third bearing seat. The first feeding roller assembly includes a first feeding roller body disposed on the fifth rotating shaft and a third drive motor for driving the fifth rotating shaft to rotate. A first slide rail is provided on the first bracket along the longitudinal direction, and a first slider is slidably disposed on the first slide rail. The first tension roller assembly includes a plurality of first tension roller bodies rotatably disposed on the upper end of the first slide rail, a plurality of second tension roller bodies rotatably disposed on the first slider, and a fourth drive motor for driving the first slider to reciprocate along the longitudinal direction on the first slide rail. The outer edges of the first tension roller body and the second tension roller body are each provided with a first limiting groove along their circumferential direction. A first sensing element and a second sensing element are respectively provided on the first bracket. The first sensing element corresponds to the upper end of the first slide rail, and the second sensing element corresponds to the lower end of the first slide rail.

[0012] As a further improvement of this utility model, the first feeding roller assembly mentioned above also includes a sixth rotating shaft and a seventh rotating shaft rotatably mounted on the first bracket. A feeding space for placing the second feeding roller body is formed between the sixth rotating shaft and the seventh rotating shaft. The third drive motor is also used to drive the sixth rotating shaft to rotate. A limit member is provided on the seventh rotating shaft.

[0013] As a further improvement of this utility model, a fifth transmission gear and a sixth transmission gear are respectively provided on the output shaft of the third drive motor, a seventh transmission gear is provided on the fifth rotating shaft, a third transmission chain is provided between the fifth transmission gear and the seventh transmission gear, an eighth transmission gear is provided on the sixth rotating shaft, and a fourth transmission chain is provided between the sixth transmission gear and the eighth transmission gear.

[0014] As a further improvement of this utility model, an eighth rotating shaft is provided on the second bracket via a fourth bearing seat. The second feeding roller assembly includes a third feeding roller body disposed on the eighth rotating shaft and a fifth drive motor for driving the eighth rotating shaft to rotate. A second slide rail is provided on the second bracket along the longitudinal direction, and a second slider is slidably disposed on the second slide rail. The second tension roller assembly includes a plurality of third tension roller bodies rotatably disposed on the upper end of the second slide rail, a plurality of fourth tension roller bodies rotatably disposed on the second slider, and a sixth drive motor for driving the second slider to reciprocate along the longitudinal direction on the second slide rail. The outer edges of the third tension roller bodies and the fourth tension roller bodies are each provided with a second limiting groove along their circumferential direction. A third sensing element and a fourth sensing element are respectively disposed on the second bracket. The third sensing element corresponds to the upper end of the second slide rail, and the fourth sensing element corresponds to the lower end of the second slide rail.

[0015] As a further improvement of this utility model, the frame is further provided with a feeding roller assembly, which is located between the second tensioning roller assembly and the infeed ring. The feeding roller assembly includes a plurality of first feeding roller bodies and second feeding roller bodies rotatably mounted on the second support. The first feeding roller body is located above the second feeding roller body, and the horizontal height of the second feeding roller body is adapted to the horizontal height of the infeed ring. The outer edges of the first feeding roller body and the second feeding roller body are each provided with a third limiting groove along their circumferential direction.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model completes the fully automated production process of wires and light strings from feeding and conveying, tension adjustment and control, stranding and winding to winding, ensuring high-efficiency, high-quality, and high-consistency stranding and neat winding between light strings and wires, reducing manual intervention, significantly improving production efficiency, and enhancing the quality of light string products, making it suitable for large-scale production of light strings; 2. The wire feeding device and light string feeding device in this utility model respectively ensure the stability of wire and light string feeding and conveying. By setting two sets of independent tension roller assemblies, the tension of the wires and light strings can be automatically adjusted and guaranteed, ensuring the stability and continuity of the feeding process, avoiding the phenomenon of wire or light string breakage, loosening, or uneven stranding caused by uneven tension, and providing a good foundation for subsequent stranding processes; 3. In the stranding device of this utility model, the take-up roller bracket drives the take-up roller body to rotate around the Y-axis under the drive of the first drive motor, completing the stranding process. The twisting process involves fully, evenly, and orderly winding the wires and light strings together. Driven by a second drive motor, the take-up roller rotates around its X-axis, completing the automatic twisting and winding process of the finished light strings. The finished light strings processed by this twisting machine form a tighter, more uniform, and less prone-to-loose twisted structure, improving the quality and stability of the finished light strings and ensuring the brightness of each individual light string. 4. This invention uses a reciprocating screw and nut to guide the wires and light strings passing through the second wire inlet channel, allowing them to move left and right on the take-up roller, preventing the finished light strings from piling up in one place and ensuring neat and even winding, facilitating subsequent transportation and use. 5. The wire feeding device in this invention is designed with a structure suitable for installing feed rollers of different sizes and weights, namely the fifth, sixth, and seventh rotating shafts, increasing the flexibility and versatility of this invention and meeting the production needs of light strings of different specifications. Attached Figure Description

[0017] Figure 1 This is one of the perspective views of this utility model.

[0018] Figure 2 This is the second perspective view of this utility model.

[0019] Figure 3 This is the front view of this utility model.

[0020] Figure 4 This is an enlarged perspective view of the wire feeding device in this utility model.

[0021] Figure 5 This is an enlarged front view of the wire feeding device in this utility model.

[0022] Figure 6 This is an enlarged top view of the wire feeding device in this utility model.

[0023] Figure 7 This is an enlarged perspective view of the string light feeding device in this utility model.

[0024] Figure 8 This is an enlarged front view of the string light feeding device in this utility model.

[0025] Figure 9 This is an enlarged top view of the string light feeding device in this utility model.

[0026] Figure 10 This is an enlarged perspective view of the stranded wire device in this utility model.

[0027] Figure 11 This is an enlarged front view of the stranded wire device in this utility model.

[0028] Figure 12 This is an enlarged left view of the stranded wire device in this utility model.

[0029] Figure 13 This is an enlarged right view of the stranded wire device in this utility model.

[0030] Figure 14 This is an enlarged top view of the stranded wire device in this utility model.

[0031] Explanation of reference numerals: 1-Frame, 2-Wire feeding device, 3-String light feeding device, 4-Stranding device, 5-First support, 6-First unloading roller assembly, 7-First tensioning roller assembly, 8-Second support, 9-Second unloading roller assembly, 10-Second tensioning roller assembly, 11-Third support, 12-Take-up roller assembly, 13-First drive motor, 14-Second drive motor, 15-Take-up roller support, 16-Take-up roller body, 17-First bearing seat, 18-Wire inlet ring. 19-First inlet channel, 20-Second bearing housing, 21-First shaft, 22-Second shaft, 23-Third shaft, 24-Fourth shaft, 25-First transmission gear, 26-Second transmission gear, 27-First bevel gear, 28-First transmission chain, 29-Second bevel gear, 30-Reciprocating lead screw, 31-Nut, 32-Third transmission gear, 33-Second inlet channel, 34-Fourth transmission gear, 35-Second transmission chain, 36-Third bearing housing, 37-First... Five rotating shafts, 38-First feeding roller body, 39-Third drive motor, 40-First slide rail, 41-First slider, 42-First tension roller body, 43-Second tension roller body, 44-First limiting groove, 45-First sensing element, 46-Second sensing element, 47-Sixth rotating shaft, 48-Seventh rotating shaft, 49-Second feeding roller body, 50-Limiting element, 51-Fifth transmission gear, 52-Sixth transmission gear, 53-Seventh transmission gear, 54-Third transmission gear Chain, 55-Eighth transmission gear, 56-Fourth transmission chain, 57-Fourth bearing seat, 58-Eighth rotating shaft, 59-Third feeding roller body, 60-Fifth drive motor, 61-Second slide rail, 62-Second slider, 63-Third tension roller body, 64-Fourth tension roller body, 65-Second limiting groove, 66-Third sensing element, 67-Fourth sensing element, 68-First feeding roller body, 69-Second feeding roller body, 70-Third limiting groove, 71-Heating cylinder. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Rather, the present utility model covers any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of the present utility model as defined in the claims.

[0033] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0034] like Figures 1 to 14The illustrated string light twisting machine includes a frame 1, on which are sequentially arranged a wire feeding device 2 for automatically feeding wires, a string light feeding device 3 for automatically feeding string lights, and a twisting device 4 for automatically and precisely winding wires and string lights. The wire feeding device 2 includes a first feeding roller assembly 6 and a first tensioning roller assembly 7 mounted on a first support 5; the string light feeding device 3 includes a second feeding roller assembly 9 and a second tensioning roller assembly 10 mounted on a second support 8; and the twisting device 4 includes a take-up roller assembly 12 mounted on a third support 11, as well as a first drive motor 13 and a second drive motor 14. Depending on the product processing requirements, the number of wire feeding devices 2 can be set to 1, 2, 3 or more groups, and each group of wire feeding devices 2 has the same structure to achieve synchronous feeding and conveying of 1, 2, 3 or more wires, so that 1, 2, 3 or more wires are wound on the same light string, increasing the tensile strength and voltage of the finished light string and ensuring the brightness of each small light bead.

[0035] like Figures 1 to 6 As shown, a fifth rotating shaft 37 is mounted on the first support 5 via a third bearing seat 36, allowing the fifth rotating shaft 37 to rotate independently relative to the first support 5. The first feeding roller assembly 6 includes a first feeding roller body 38 detachably mounted on the fifth rotating shaft 37, and a third drive motor 39 for driving the fifth rotating shaft 37 to rotate. The first feeding roller body 38, wound with wire, is mounted on the fifth rotating shaft 37. Driven by the third drive motor 39, the fifth rotating shaft 37 drives the first feeding roller body 38 to rotate, thus feeding the wire and conveying it to the next process, namely the stranding device 4. After the wire is used up, the empty first feeding roller body 38 can be removed, and a new first feeding roller body 38 wound with wire can be remounted on the fifth rotating shaft 37 to ensure the continuity of the stranding process.

[0036] In this embodiment, the fifth rotating shaft 37 is fixed to the third bearing seat 36 at only one end. Therefore, to avoid bending and damage to the fifth rotating shaft 37, the first feeding roller body 38, which has a smaller number of wound wires and is lighter in weight, can be installed on the fifth rotating shaft 37 for feeding and conveying. For the installation of the first feeding roller body 38, which has a larger number of wound wires and is heavier in weight, the first feeding roller assembly 6 in this embodiment also includes a sixth rotating shaft 47 and a seventh rotating shaft 48 rotatably mounted on the first bracket 5. The sixth rotating shaft 47 and the seventh rotating shaft 48 are both located below the fifth rotating shaft 37. A feeding space for placing the second feeding roller body 49 is formed between the sixth rotating shaft 47 and the seventh rotating shaft 48. A limiting member 50 is provided on the seventh rotating shaft 48 to fix the position of the second feeding roller body 49. The third drive motor 39 is also used to drive the sixth rotating shaft 47 to rotate. The second feeding roller body 49 with the wire wound on it is installed in the feeding space. Driven by the third drive motor 39, the sixth rotating shaft 47 drives the second feeding roller body 49 to rotate, so as to feed the wire and transport the wire to the next process, namely the stranding device 4. After the wire is used up, the empty second feeding roller body 49 can be removed and a new second feeding roller body 49 with the wire wound on it can be reinstalled in the feeding space to ensure the continuity of the stranding process.

[0037] The output shaft of the third drive motor 39 is equipped with a fifth transmission gear 51 and a sixth transmission gear 52, respectively. The fifth rotating shaft 37 is equipped with a seventh transmission gear 53. A third transmission chain 54 is provided between the fifth transmission gear 51 and the seventh transmission gear 53. The sixth rotating shaft 47 is equipped with an eighth transmission gear 55, and a fourth transmission chain 56 is provided between the sixth transmission gear 52 and the eighth transmission gear 55. The third transmission chain 54 and the fourth transmission chain 56 respectively connect the third drive motor 39 to the fifth rotating shaft 37 and the sixth rotating shaft 47, allowing the third drive motor 39 to drive the first feeding roller body 38 and the second feeding roller body 49 to rotate, completing the feeding and conveying of wires at two different positions. This saves one drive motor and its matching control system, simplifies the electrical and mechanical structure, and reduces manufacturing costs.

[0038] A first slide rail 40 is provided on the first support 5 along the longitudinal direction, and a first slider 41 is slidably disposed on the first slide rail 40. The first tensioning roller assembly 7 includes several first tensioning roller bodies 42 rotatably disposed on the upper end of the first slide rail 40, several second tensioning roller bodies 43 rotatably disposed on the first slider 41, and a fourth drive motor for driving the first slider 41 to reciprocate along the longitudinal direction on the first slide rail 40. In this embodiment, the number of first tensioning roller bodies 42 and second tensioning roller bodies 43 is set to two to facilitate wire winding. The outer edges of the first tensioning roller bodies 42 and second tensioning roller bodies 43 are provided with first limiting grooves 44 along their circumferential direction to guide and limit the position of the wire.

[0039] The first support 5 is respectively equipped with a first sensing element 45 and a second sensing element 46. The first sensing element 45 corresponds to the upper end of the first slide rail 40, and the second sensing element 46 corresponds to the lower end of the first slide rail 40. The upper and lower limit positions of the first slider 41 are detected by the two sensing elements, and in conjunction with the fourth drive motor, the longitudinal displacement path of the second tension roller body 43 is automatically controlled. This allows for real-time adjustment and maintenance of the wire tension during the wire feeding process, avoiding wire breakage, slackness, or uneven twisting due to uneven tension, and ensuring the product quality of the finished light string.

[0040] like Figures 1 to 3 , Figures 7 to 9 As shown, an eighth rotating shaft 58 is mounted on the second support 8 via a fourth bearing seat 57, allowing the eighth rotating shaft 58 to rotate independently relative to the second support 8. The second feeding roller assembly 9 includes a third feeding roller body 59 detachably mounted on the eighth rotating shaft 58, and a fifth drive motor 60 for driving the rotation of the eighth rotating shaft 58. The third feeding roller body 59, wound with a string of lights, is mounted on the eighth rotating shaft 58. Driven by the fifth drive mechanism 60, the eighth rotating shaft 58 drives the third feeding roller body 59 to rotate, thus feeding the string of lights and conveying it to the next process, namely the stranding device 4. After the string of lights is used up, the empty third feeding roller body 59 can be removed, and a new third feeding roller body 59 wound with a string of lights can be remounted on the eighth rotating shaft 58 to ensure the continuity of the stranding process.

[0041] A second slide rail 61 is provided on the second support 8 along the longitudinal direction, and a second slider 62 is slidably disposed on the second slide rail 61. The second tension roller assembly 10 includes several third tension roller bodies 63 rotatably disposed on the upper end of the second slide rail 61, several fourth tension roller bodies 64 rotatably disposed on the second slider 62, and a sixth drive motor for driving the second slider 62 to reciprocate along the longitudinal direction on the second slide rail 61. In this embodiment, the number of third tension roller bodies 63 and fourth tension roller bodies 64 is set to two to facilitate the winding of the light string. The outer edges of the third tension roller bodies 63 and fourth tension roller bodies 64 are provided with second limiting grooves 65 along their circumferential direction to guide and limit the position of the light string.

[0042] The second support 8 is equipped with a third sensing element 66 and a fourth sensing element 67. The third sensing element 66 corresponds to the upper end of the second slide rail 61, and the fourth sensing element 67 corresponds to the lower end of the second slide rail 61. By detecting the upper and lower limit positions of the second slider 62 through the two sensing elements, and cooperating with the fifth drive motor 60, the longitudinal displacement path of the fourth tension roller body 64 is automatically controlled. This allows for real-time adjustment and maintenance of the string tension during the wire feeding process, preventing the string from breaking, loosening, or becoming unevenly twisted due to uneven tension, thus ensuring the quality of the finished string of lights.

[0043] like Figures 1 to 3 , Figures 10 to 14 As shown, the take-up roller assembly 12 includes a take-up roller bracket 15 rotatably mounted on a third support 11, and a take-up roller body 16 rotatably mounted on the take-up roller bracket 15. The take-up roller bracket 15 rotates around the Y-axis under the drive of a first drive motor 13, and the take-up roller body 16 rotates around the X-axis under the drive of a second drive motor 14. The rotation axis of the take-up roller bracket 15 is perpendicular to the rotation axis of the take-up roller body 16. The take-up roller assembly 12 in this application adopts a dual-motor drive design. The take-up roller bracket 15 drives the take-up roller body 16 to rotate around the Y-axis, completing the twisting process of fully, evenly, and orderly winding the wires and the light string together. The take-up roller body 16 itself rotates around the X-axis, completing the winding process of the finished light string. By controlling the simultaneous opening and closing of the first drive motor 13 and the second drive motor 14, the above two processes are combined into one and carried out synchronously, effectively improving production efficiency, ensuring the neatness and orderliness of the finished light string, and avoiding problems such as tangled or overlapping wires in the light string.

[0044] like Figures 7 to 14As shown, the third bracket 11 has an inlet ring 18 on the side facing the string light feeding device 3 via the first bearing seat 17. The inlet ring 18 is located between the string light feeding device 3 and the stranding device 4, and a first inlet channel 19 for the wire and string light to pass through is formed in the center of the inlet ring 18. Since the wire will change color after being wound and deformed, a heating cylinder 71 is provided between the inlet ring 18 and the string light feeding device 3 in this embodiment. The wire is preheated and fixed in color by the heating cylinder to keep the wire its original color, thereby ensuring the aesthetics of the finished wire. A feeding roller assembly is also provided on the frame 1, and the feeding roller assembly is located between the second tensioning roller assembly 10 and the inlet ring 18. The feeding roller assembly includes several first feeding roller bodies 68 and second feeding roller bodies 69 rotatably mounted on the second bracket 8. The outer edges of the first feeding roller bodies 68 and the second feeding roller bodies 69 are provided with third limiting grooves 70 along their circumferential direction to guide and limit the position of the string light. The first feeding roller body 68 is positioned above the second feeding roller body 69, and the horizontal height of the second feeding roller body 69 is matched with the horizontal height of the wire inlet ring 18. The feeding roller assembly can uniformly adjust the wires and light strings, and transport the wires and light strings to a position consistent with the horizontal height of the wire inlet ring 18. They are then uniformly and smoothly entered into the stranding device 4 through the first wire inlet channel 19, avoiding uneven stranding caused by conveying deviation.

[0045] The third bracket 11 has a first rotating shaft 21 on the side away from the light string feeding device 3 via the second bearing seat 20. The first rotating shaft 21 is distributed along the Y-axis. The output shaft of the first drive motor 13 is connected to the input end of the first rotating shaft 21. Specifically, the output shaft of the first drive mechanism 13 is provided with a ninth transmission gear, and the input end of the first rotating shaft 21 is provided with a tenth transmission gear. A fifth transmission chain is provided between the ninth transmission gear and the tenth transmission gear. The first drive motor 13 drives the first rotating shaft 21 through the fifth transmission chain.

[0046] The take-up roller bracket 15 is located between the inlet ring 18 and the first rotating shaft 21. The side of the take-up roller bracket 15 facing the light string feeding device 3 is connected to the inlet ring 18, and the side of the take-up roller bracket 15 away from the light string feeding device 3 is connected to the output end of the first rotating shaft 21. Specifically, the side of the take-up roller bracket 15 facing the light string feeding device 3 has a first through hole, which is sleeved with the inlet ring 18 and connected to the first inlet channel 19 to ensure the passage of wires and light strings. The side of the take-up roller bracket 15 away from the light string feeding device 3 has a second through hole, which is sleeved with the output end of the first rotating shaft 21. This enables the installation of the take-up roller bracket 15 and ensures that the take-up roller bracket 15 can be driven by the first rotating shaft 21 under the drive of the first drive motor 13 to rotate stably relative to the third bracket 11 around the Y-axis.

[0047] The first rotating shaft 21 has a third through hole along its axial direction for the insertion of the second rotating shaft 22. A bearing is installed between the third through hole and the second rotating shaft 22, allowing the second rotating shaft 22 to rotate independently relative to the first rotating shaft 21. The output shaft of the second drive motor 14 is connected to the input end of the second rotating shaft 22. Specifically, the output shaft of the second drive motor 14 is equipped with an eleventh transmission gear, and the output end of the second rotating shaft is equipped with a twelfth transmission gear. A sixth transmission chain is installed between the eleventh and twelfth transmission gears, which drives the second rotating motor 14 to drive the second rotating shaft 22. The output end of the second rotating shaft 22 passes through the second through hole and is connected to the take-up roller body 16. Driven by the second drive motor 14, the take-up roller body 16 is driven by the second rotating shaft 22 to rotate relative to the take-up roller support 15 around the X-axis.

[0048] To enable the mounting of the take-up roller body 16 on the take-up roller bracket 15 and the connection between the second rotating shaft 22 and the take-up roller body 16, this embodiment provides a third rotating shaft 23 and a fourth rotating shaft 24 rotatably mounted on the take-up roller bracket 15 along the X-axis direction. The third rotating shaft 23 is detachably connected to the take-up roller bracket 15. The third rotating shaft 23 is used to mount the take-up roller body 16 for easy replacement. A first transmission gear 25 is mounted on the third rotating shaft 23. The fourth rotating shaft 24 is located on the side of the third rotating shaft 23 away from the light string feeding device 3. A second transmission gear 26 and a first bevel gear 27 are mounted on the fourth rotating shaft 24. A first transmission chain 28 is provided between the first transmission gear 25 and the second transmission gear 26. A second bevel gear 29 is provided at the output end of the second rotating shaft 22 passing through the second through hole. The first bevel gear 27 and the second bevel gear 29 mesh. The rotational motion of the second shaft along the Y-axis is converted into the rotational motion of the fourth shaft 24 along the X-axis through the engagement of the first bevel gear 27 and the second bevel gear 29. Then, a speed reduction and torque amplification structure is formed by the first transmission gear 25, the second transmission gear 26, and the first transmission chain 28. This structure not only transmits the rotational motion of the fourth shaft 24 along the X-axis to the take-up roller body 16, allowing the take-up roller body 16 to rotate around the X-axis to complete the winding of the finished light string, but also reduces the high speed of the second drive motor 14 to a practical speed suitable for winding, ensuring the winding of the finished light string. Gears with different numbers of teeth can be selected and replaced according to actual production needs to adjust the rotational speed of the take-up roller body 16.

[0049] A reciprocating screw 30 is rotatably mounted on the receiving roller bracket 15 along the X-axis direction. The reciprocating screw 30 is located on the side of the third rotating shaft 23 facing the light string feeding device 3. A nut 31 and a third transmission gear 32 are respectively mounted on the reciprocating screw 30. The nut 31 slides with the reciprocating screw 30. A second wire inlet channel 33 for wires and light strings to pass through is provided on the nut 31. A fourth transmission gear 34 is also mounted on the third rotating shaft 23. A second transmission chain 35 is provided between the third transmission gear 32 and the fourth transmission gear 34.

[0050] The reciprocating screw 30 can convert its own rotational motion into the linear reciprocating motion of the nut 31, thereby guiding the wires and light strings passing through the second inlet channel 33 to move left and right on the take-up roller body 16, avoiding the finished light strings from piling up in one place, ensuring that the finished light strings are neatly and evenly wound, which is convenient for subsequent transportation and use.

[0051] Its working principle is as follows: the wires and light strings are fed from the wire feeding device and light string feeding device respectively. After the tension is adjusted by their respective tensioning roller assemblies, they converge through the feeding roller assembly and pass sequentially through the first wire inlet channel on the wire inlet ring and the second wire inlet channel on the nut into the stranding device. In the stranding device, the take-up roller bracket, driven by the first drive motor, drives the take-up roller body to rotate around the Y-axis, completing the stranding process of fully, evenly, and orderly winding the wires and light strings together. The take-up roller body, driven by the second drive motor, rotates around the X-axis itself, and cooperates with the horizontal linear movement of the nut on the reciprocating screw to complete the automatic stranding and winding process of the finished light string.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the present utility model, and these should also be considered to fall within the protection scope of the present utility model.

Claims

1. A string light twisting machine, comprising a frame (1), characterized in that, The frame (1) is sequentially provided with a wire feeding device (2), a string light feeding device (3), and a stranding device (4). The wire feeding device (2) includes a first feeding roller assembly (6) and a first tensioning roller assembly (7) mounted on a first support (5). The string light feeding device (3) includes a second feeding roller assembly (9) and a second tensioning roller assembly (10) mounted on a second support (8). The stranding device (4) includes a receiving roller assembly (12) mounted on a third support (11) and a first drive motor (13). The second drive motor (14) and the take-up roller assembly (12) include a take-up roller bracket (15) rotatably mounted on a third bracket (11) and a take-up roller body (16) rotatably mounted on the take-up roller bracket (15). The take-up roller bracket (15) rotates around the Y-axis under the drive of the first drive motor (13), and the take-up roller body (16) rotates around the X-axis under the drive of the second drive motor (14). The rotation axis of the take-up roller bracket (15) is perpendicular to the rotation axis of the take-up roller body (16).

2. The string light twisting machine according to claim 1, characterized in that, The third bracket (11) has a wire inlet ring (18) on the side facing the string light feeding device (3) via a first bearing seat (17). The wire inlet ring (18) is located between the string light feeding device (3) and the stranding device (4), and a heating cylinder (71) is provided between the wire inlet ring (18) and the string light feeding device (3). A first wire inlet channel (19) is formed in the center of the wire inlet ring (18). The third bracket (11) is provided on the side away from the string light feeding device (3) via a second bearing seat (20). There is a first rotating shaft (21), which is distributed along the Y-axis. The output shaft of the first drive motor (13) is connected to the input end of the first rotating shaft (21). The take-up roller bracket (15) is located between the inlet ring (18) and the first rotating shaft (21). The side of the take-up roller bracket (15) facing the light string feeding device (3) is connected to the inlet ring (18), and the side of the take-up roller bracket (15) away from the light string feeding device (3) is connected to the output end of the first rotating shaft (21).

3. The string light twisting machine according to claim 2, characterized in that, The take-up roller bracket (15) has a first through hole on the side facing the string light feeding device (3). The first through hole is sleeved with the wire inlet ring (18) and is connected to the first wire inlet channel (19). The take-up roller bracket (15) has a second through hole on the side away from the string light feeding device (3). The second through hole is sleeved with the output end of the first rotating shaft (21). The first rotating shaft (21) has a third through hole inside along its own axial direction for the second rotating shaft (22) to be inserted. A bearing is provided between the third through hole and the second rotating shaft (22). The output shaft of the second drive motor (14) is connected to the input end of the second rotating shaft (22). The output end of the second rotating shaft (22) passes through the second through hole and is connected to the take-up roller body (16).

4. The string light twisting machine according to claim 3, characterized in that, The receiving roller bracket (15) is provided with a third rotating shaft (23) and a fourth rotating shaft (24) rotatably arranged along the X-axis direction. The third rotating shaft (23) is detachably connected to the receiving roller bracket (15). The third rotating shaft (23) is used to install the receiving roller body (16). A first transmission gear (25) is provided on the third rotating shaft (23). The fourth rotating shaft (24) is located on the side of the third rotating shaft (23) away from the light string feeding device (3). A second transmission gear (26) and a first bevel gear (27) are provided on the fourth rotating shaft (24). A first transmission chain (28) is provided between the first transmission gear (25) and the second transmission gear (26). A second bevel gear (29) is provided at the output end of the second rotating shaft (22) passing through the second through hole. The first bevel gear (27) meshes with the second bevel gear (29).

5. The string light stranding machine according to claim 4, characterized in that, A reciprocating screw (30) is rotatably mounted on the receiving roller bracket (15) along the X-axis direction. The reciprocating screw (30) is located on the side of the third rotating shaft (23) facing the light string feeding device (3). A nut (31) and a third transmission gear (32) are respectively mounted on the reciprocating screw (30). The nut (31) slides with the reciprocating screw (30). A second inlet channel (33) for wires and light strings to pass through is provided on the nut (31). A fourth transmission gear (34) is also mounted on the third rotating shaft (23). A second transmission chain (35) is provided between the third transmission gear (32) and the fourth transmission gear (34).

6. The string light stranding machine according to claim 5, characterized in that, A fifth rotating shaft (37) is provided on the first bracket (5) via a third bearing seat (36). The first feeding roller assembly (6) includes a first feeding roller body (38) detachably mounted on the fifth rotating shaft (37) and a third drive motor (39) for driving the fifth rotating shaft (37) to rotate. A first slide rail (40) is provided on the first bracket (5) along the longitudinal direction. A first slider (41) is slidably mounted on the first slide rail (40). The first tensioning roller assembly (7) includes a plurality of first tensioning roller bodies (42) rotatably mounted on the upper end of the first slide rail (40) and a plurality of first tensioning roller bodies (42) rotatably mounted on the upper end of the first slide rail (40). The first slider (41) has a second tension roller body (43) on it, and a fourth drive motor for driving the first slider (41) to reciprocate along the longitudinal direction on the first slide rail (40). The outer edges of the first tension roller body (42) and the second tension roller body (43) are provided with a first limiting groove (44) along their own circumferential direction. The first bracket (5) is provided with a first sensing element (45) and a second sensing element (46). The first sensing element (45) corresponds to the upper end of the first slide rail (40), and the second sensing element (46) corresponds to the lower end of the first slide rail (40).

7. The string light stranding machine according to claim 6, characterized in that, The first feeding roller assembly (6) further includes a sixth rotating shaft (47) and a seventh rotating shaft (48) rotatably mounted on the first bracket (5). A feeding space for placing the second feeding roller body (49) is formed between the sixth rotating shaft (47) and the seventh rotating shaft (48). The third drive motor (39) is also used to drive the sixth rotating shaft (47) to rotate. A limit member (50) is provided on the seventh rotating shaft (48).

8. The string light stranding machine according to claim 7, characterized in that, The output shaft of the third drive motor (39) is provided with a fifth transmission gear (51) and a sixth transmission gear (52), the fifth rotating shaft (37) is provided with a seventh transmission gear (53), a third transmission chain (54) is provided between the fifth transmission gear (51) and the seventh transmission gear (53), the sixth rotating shaft (47) is provided with an eighth transmission gear (55), and a fourth transmission chain (56) is provided between the sixth transmission gear (52) and the eighth transmission gear (55).

9. The string light stranding machine according to claim 8, characterized in that, The second bracket (8) is provided with an eighth rotating shaft (58) via a fourth bearing seat (57). The second feeding roller assembly (9) includes a third feeding roller body (59) detachably mounted on the eighth rotating shaft (58) and a fifth drive motor (60) for driving the eighth rotating shaft (58) to rotate. The second bracket (8) is provided with a second slide rail (61) along the longitudinal direction. A second slider (62) is slidably mounted on the second slide rail (61). The second tension roller assembly (10) includes a plurality of third tension roller bodies (63) rotatably mounted on the upper end of the second slide rail (61) and a plurality of third tension roller bodies (63) rotatably mounted on the upper end of the second slide rail (61). The second slider (62) has a fourth tension roller body (64) and a sixth drive motor for driving the second slider (62) to reciprocate along the longitudinal direction on the second slide rail (61). The outer edges of the third tension roller body (63) and the fourth tension roller body (64) are provided with second limiting grooves (65) along their own circumferential direction. The second bracket (8) is provided with a third sensing element (66) and a fourth sensing element (67). The third sensing element (66) corresponds to the upper end of the second slide rail (61), and the fourth sensing element (67) corresponds to the lower end of the second slide rail (61).

10. The string light stranding machine according to claim 9, characterized in that, The frame (1) is also provided with a feeding roller assembly, and the feeding roller assembly is located between the second tensioning roller assembly (10) and the wire inlet ring (18). The feeding roller assembly includes a plurality of first feeding roller bodies (68) and second feeding roller bodies (69) rotatably mounted on the second support (8). The first feeding roller body (68) is located above the second feeding roller body (69). The horizontal height of the second feeding roller body (69) is adapted to the horizontal height of the wire inlet ring (18). The outer edges of the first feeding roller body (68) and the second feeding roller body (69) are provided with third limiting grooves (70) along their circumferential directions.

Images