Accurate dispensing equipment for LED lamp string production and processing

Abstract

The invention discloses precise glue dispensing equipment for LED lamp string production and processing, relates to the field of LED lamp string production, and solves the problem of low glue displacement precision of existing glue dispensing equipment. The precise glue dispensing equipment comprises a mounting bracket and an electric telescopic rod, a mounting plate is fixedly mounted at the top end of the electric telescopic rod, and a glue dispensing gun is mounted at one end of the mounting plate; a gun head is mounted at the bottom of the glue dispensing gun, a feeding box is mounted on the outer side of the mounting bracket, the feeding box is in butt joint with the top end of the glue dispensing gun through a telescopic hose, and a conveying platform is fixedly mounted on one side of the mounting bracket; the unblocking mechanism is used for discharging residual glue in the gun head, and the unblocking mechanism is mounted on the outer side of the gun head; by means of the blockage clearing mechanism, when the electric telescopic rod drives the mounting plate to move upwards, the gun head of the glue dispensing gun can be far away from the lamp beads of the LED lamp string, and residual glue on the inner side of the gun head is cleared in the upward moving process of the gun head, so that the automatic blockage clearing effect is achieved, and the continuous glue dispensing amount of the glue dispensing gun every time is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of LED light string production, and in particular to a precision glue dispensing device for the production and processing of LED light strings. Background Art

[0002] LED light string is a lighting decoration device composed of multiple LED light beads connected in series or in parallel through wires. It is shaped like a ribbon. Due to its small size, low energy consumption and long life, it is widely used in lighting, display, signal indication and other fields. For example, it is used for lighting in homes, offices, workshops and other occasions, as well as the light source for billboards and commercial signs.

[0003] In the process of LED light string production, the LED lamp beads on the LED light string need to be packaged. Usually, glue dispensing equipment is used to accurately apply glue to the LED lamp beads, wire connections or other key parts for fixing, waterproofing, protecting and improving the durability and performance of the LED light string. The existing glue dispensing equipment uses the method of conveying the LED light string to dispense glue on the LED lamp beads. Due to the large number of LED lamp beads on the LED light string, the glue dispensing gun needs to repeatedly dispense glue on the LED lamp beads. However, after the glue dispensing gun discharges the glue, a certain amount of glue residue will remain on the inside of the glue dispensing gun, which makes it easy for the glue dispensing gun to discharge more materials the next time, making it difficult to achieve accurate glue dispensing on the LED light string. Summary of the invention

[0004] The purpose of the present invention is to provide a precise glue dispensing device for the production and processing of LED light strings to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A precision glue dispensing device for the production and processing of LED light strings, comprising: a mounting bracket and an electric telescopic rod fixedly mounted on the outside of the mounting bracket, a mounting plate fixedly mounted on the top of the electric telescopic rod, a glue gun fixedly mounted on the end of the mounting plate away from the electric telescopic rod, a gun head fixedly mounted on the bottom of the glue gun, a feed box for storing and heating glue fixedly mounted on the outside of the mounting bracket, the feed box is docked with the top of the glue gun through a telescopic hose, and a conveying platform for installing a conveying device is fixedly mounted on the side of the mounting bracket away from the electric telescopic rod; it also includes: a clearing mechanism for discharging residual glue in the gun head, the clearing mechanism is mounted on the outside of the gun head; a material receiving mechanism for catching the glue discharged from the gun head, the material receiving mechanism is mounted on the outside of the mounting bracket; a flattening mechanism for pressing and positioning the LED light string on the conveying platform, the flattening mechanism is mounted on the outside of the glue gun.

[0007] Preferably, the blockage clearing mechanism includes a mounting tube arranged at the outside of the dispensing gun, a moving block is slidably installed on the inner side of the mounting tube, and a guide tube is fixedly installed on the end of the moving block close to the dispensing gun, a push block is slidably installed on the inner side of the guide tube, a push rod is installed between the push block and the moving block, an elastic pin is fixedly installed on the end of the push block away from the push rod, a positioning needle tube is slidably installed on the outer side of the elastic pin, the positioning needle tube is obliquely placed inside the gun head, the push block is docked with the push rod through a rotating shaft, two centrally symmetrically distributed spiral strips are fixedly installed on the inner side of the guide tube, a threaded groove matching the two spiral strips is provided on the outer side of the push block, pull rods are fixedly installed on both sides of the push block, a sliding groove for limiting the sliding of the pull rod is provided on the outer side of the mounting tube, a first spring is fixedly installed between the moving block and the push block, and a push-pull assembly for pushing the pull rod is also provided on the outer side of the dispensing gun.

[0008] Preferably, the material receiving mechanism includes a positioning rod rotatably mounted on the outside of the mounting bracket, a mounting rod is fixedly mounted on one end of the positioning rod, a material receiving box is fixedly mounted on the end of the mounting rod away from the positioning rod, a gear is fixedly mounted on the outside of the positioning rod, a rack plate is fixedly mounted on the side of the mounting plate close to the positioning rod, the rack plate cooperates with the gear, two symmetrically distributed movable plates are fixedly mounted on the outside of the positioning rod, a positioning sleeve is rotatably mounted on the outside of the positioning rod, the positioning sleeve is fixedly mounted on the outside of the mounting bracket through two supports, a sliding groove is provided on the outside of the positioning sleeve for limiting the sliding of the movable plate, and matching magnet plates are fixedly mounted on the inner side of the sliding groove and the outer side of the movable plate.

[0009] Preferably, the flattening mechanism includes a mounting ring fixedly mounted on the outside of the dispensing gun, two symmetrically distributed sleeves are fixedly mounted on the outside of the mounting ring, an axle is provided on the inside of the sleeve, a rocker is fixedly mounted on the outside of the axle, two symmetrically distributed pressure rollers are rotatably mounted on one end of the rocker away from the axle, both ends of the axle are connected to the sleeve through a coil spring, a limit rod is fixedly mounted on the inside of the sleeve, the outside of the limit rod is in contact with the outside of the rocker, the rocker is obliquely placed on the outside of the gun head, and the horizontal height of the pressure roller is lower than the horizontal height of the gun head.

[0010] Preferably, the push-pull assembly includes a sleeve frame fixedly installed on the outside of the dispensing gun, a pressure plate is slidably installed on the outside of the sleeve frame, a second spring is fixedly installed between the pressure plate and the inner side of the sleeve frame, a mobile frame is fixedly installed on the bottom of the pressure plate, two symmetrically distributed installation frames are fixedly installed on the bottom of the mobile frame, the two pull rods are respectively slidably installed on the inner sides of the two installation frames, and a baffle is fixedly installed on the outside of the installation bracket, and the baffle is located directly above the pressure plate.

[0011] Preferably, a limiting block is fixedly mounted on a side of the pull rod away from the moving block.

[0012] Preferably, a material guide cover is fixedly mounted on the top of the material receiving box, and the material guide cover is a hollow frustum structure.

[0013] Preferably, a heat-conducting liner is fixedly installed on the inner side of the material receiving box, and a heating coil is fixedly installed between the outer side of the heat-conducting liner and the inner side of the material receiving box.

[0014] Preferably, a discharge valve is fixedly installed between the material receiving box and the heat-conducting inner tank, and the bottom end of the discharge valve extends to the outside of the material receiving box.

[0015] Preferably, a support plate is fixedly mounted on one end of the positioning rod away from the mounting rod, and a side of the support plate close to the positioning rod is in contact with the outer side of the mounting bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention uses a clearing mechanism to keep the gun head of the glue dispensing gun away from the lamp beads of the LED lamp string when the electric telescopic rod drives the mounting plate to move upward. In the process of the gun head moving upward, the glue remaining on the inner side of the gun head is cleaned to solve the problem of glue residue, thereby achieving the effect of automatic clearing and ensuring the glue dispensing amount of the continuous glue dispensing gun each time.

[0018] 2. The present invention uses a material receiving mechanism to enable the material receiving box to be moved to the bottom of the gun head when cleaning the glue in the gun head, so that the glue in the gun head can fall downward into the material receiving box, and when the gun head moves downward, the material receiving box is moved and reset to achieve the effect of automatic avoidance, and the glue in the material receiving box can be heated to facilitate the recycling of the glue, thereby achieving the effect of recycling the glue.

[0019] 3. The present invention uses a flattening mechanism to make the four pressure rollers contact the top of the LED light string when the gun head moves downward, and as the swing rod rotates, the pressure rollers slide on the top of the LED light string to smooth and position the surface of the LED light string, thereby improving the accuracy of glue dispensing by the gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the mounting bracket and the mounting plate in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the installation tube and the positioning needle tube in the present invention;

[0023] Figure 4 It is a schematic diagram of the elastic pin and the push block structure in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the installation rod and the positioning rod in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the movable plate and the positioning sleeve in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the material receiving box and the heat-conducting inner tank in the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the pressure roller and the swing arm in the present invention.

[0028] In the figure: 1. Mounting bracket; 2. Electric telescopic rod; 3. Mounting plate; 4. Glue gun; 5. Gun head; 6. Feed box; 7. Conveying platform; 8. Mounting tube; 9. Moving block; 10. Guide tube; 11. Push block; 12. Push rod; 13. Elastic pin; 14. Positioning needle tube; 15. Pull rod; 16. First spring; 17. Positioning rod; 18. Mounting rod; 19. Receiving box; 20. Gear; 21. Rack plate; 22. Movable plate; 23. Positioning sleeve; 24. Magnet plate; 25. Mounting ring; 26. Sleeve frame; 27. Axle rod; 28. Rocker rod; 29. ​​Pressing roller; 30. Coil spring; 31. Limiting rod; 32. Sleeve frame; 33. Pressing plate; 34. Second spring; 35. Moving frame; 36. Mounting frame; 37. Baffle; 38. Limiting block; 39. Material guide cover; 40. Heat-conducting liner; 41. Discharge valve; 42. Support plate; 43. Spiral strip; 44. Heating coil. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8, a precision glue dispensing equipment for the production and processing of LED light strings shown in the figure comprises a mounting bracket 1 and an electric telescopic rod 2 fixedly mounted on the outside of the mounting bracket 1, a mounting plate 3 is fixedly mounted on the top of the electric telescopic rod 2, a glue gun 4 is fixedly mounted on the end of the mounting plate 3 away from the electric telescopic rod 2, the electric telescopic rod 2 can adjust the height of the glue gun 4, so that the glue gun 4 can continuously dispense glue to the lamp beads on the LED light string, a gun head 5 is fixedly mounted on the bottom of the glue gun 4, the glue gun 4 dispenses glue to the lamp beads on the LED light string through the gun head 5, a feed box 6 for storing and heating glue is fixedly mounted on the outside of the mounting bracket 1, the feed box 6 is connected to the top of the glue gun 4 through a telescopic hose, the feed box 6 inputs glue into the glue gun 4 through the telescopic hose, and a conveying platform 7 for installing a conveying device is fixedly mounted on the side of the mounting bracket 1 away from the electric telescopic rod 2; it also includes: a clearing mechanism for discharging residual glue in the gun head 5, and the clearing mechanism is mounted on the outside of the gun head 5.

[0031] The clearing mechanism includes a mounting tube 8 arranged on the outside of the glue gun 4, a moving block 9 is slidably mounted on the inner side of the mounting tube 8, a guide tube 10 is fixedly mounted on the end of the moving block 9 close to the glue gun 4, a push block 11 is slidably mounted on the inner side of the guide tube 10, a push rod 12 is mounted between the push block 11 and the moving block 9, an elastic pin 13 is fixedly mounted on the end of the push block 11 away from the push rod 12, a positioning needle tube 14 is slidably mounted on the outer side of the elastic pin 13, and the positioning needle tube 14 is obliquely placed inside the gun head 5. When the moving block 9 moves, the push block 11 can be pushed to move by the push rod 12, so that the push block 11 drives the elastic pin 13 to be inserted into the inner side of the gun head 5 in an inclined state. On the other side, the push block 11 is connected to the push rod 12 through the rotating shaft. Two spiral strips 43 with symmetrical distribution of the center are fixedly installed on the inner side of the guide tube 10. The outer side of the push block 11 is provided with a threaded groove matched with the two spiral strips 43, so that the push block 11 can move along the outer side of the two spiral strips 43 when moving, so that the push block 11 is in a rotating state, and the push block 11 can drive the elastic pin 13 to rotate, so that the elastic pin 13 is inserted into the inner side of the gun head 5 in a rotating state, and the elastic pin 13 is used to clean the glue on the inner side of the gun head 5 by using the elasticity of the elastic pin 13. Pull rods 15 are fixedly installed on both sides of the push block 11, and the outer side of the mounting tube 8 is provided with a pull rod for pulling The rod 15 is limited to slide in a slide groove, and a first spring 16 is fixedly installed between the moving block 9 and the push block 11 to facilitate the resetting of the moving block 9. A push-pull assembly for pushing the pull rod 15 is also provided on the outside of the glue gun 4. The push-pull assembly includes a sleeve frame 32 fixedly installed on the outside of the glue gun 4, a pressure plate 33 is slidably installed on the outside of the sleeve frame 32, and a second spring 34 is fixedly installed between the pressure plate 33 and the inner side of the sleeve frame 32. A moving frame 35 is fixedly installed at the bottom of the pressure plate 33, and two symmetrically distributed installation frames 36 are fixedly installed at the bottom of the moving frame 35. The two pull rods 15 are respectively slidably installed on the inner sides of the two installation frames 36, so that the installation frames 36 move when they move. The push block 11 can be pulled by the pull rod 15 to move along the inner side of the mounting tube 8. A limit block 38 is fixedly installed on the side of the pull rod 15 away from the moving block 9 to provide protection for the end of the pull rod 15 to prevent the pull rod 15 from falling off the mounting frame 36. A baffle 37 is fixedly installed on the outer side of the mounting bracket 1. The baffle 37 is located directly above the pressure plate 33. When the pressure plate 33 contacts the baffle 37, as the electric telescopic rod 2 is extended, the baffle 37 pushes the pressure plate 33 in the opposite direction to move. The pressure plate 33 drives the moving frame 35 to move downward. The moving frame 35 can drive the moving block 9 to move through the mounting frame 36 and the pull rod 15, thereby realizing the movement of the elastic pin 13.

[0032] Example 2: Please refer to Figure 2-Figure 7, this embodiment further explains the first embodiment, the material receiving mechanism in the figure includes a positioning rod 17 rotatably mounted on the outside of the mounting bracket 1, one end of the positioning rod 17 is fixedly mounted with a mounting rod 18, and the end of the mounting rod 18 away from the positioning rod 17 is fixedly mounted with a material receiving box 19 for catching the glue falling from the inside of the gun head 5, and a material guide cover 39 is fixedly mounted on the top of the material receiving box 19, and the material guide cover 39 is a hollow truncated cone structure, which can guide the glue into the material receiving box 19, and a heat-conductive liner 40 is fixedly mounted on the inner side of the material receiving box 19, and the material receiving box 19 can store the cleaned glue through the heat-conductive liner 40, and the heat-conductive liner 40 can store the cleaned glue. A heating coil 44 is fixedly installed between the outer side of the material receiving box 19 and the inner side of the material receiving box 19, and the heat-conducting inner liner 40 can be heated by the heating coil 44 to keep the glue in the heat-conducting inner liner 40 in a liquefied state, which is convenient for material extraction and reuse. A discharge valve 41 is fixedly installed between the material receiving box 19 and the heat-conducting inner liner 40, and the bottom end of the discharge valve 41 extends to the outer side of the material receiving box 19, and can be connected to the feed box 6 through the discharge valve 41, so that the cleaned glue returns to the feed box 6. A gear 20 is fixedly installed on the outer side of the positioning rod 17, and a rack plate 21 is fixedly installed on the side of the mounting plate 3 close to the positioning rod 17, and the rack plate 21 is connected with the gear 20. When the mounting plate 3 moves upward, the rack plate 21 can be driven to contact the gear 20, so that the rack plate 21 drives the gear 20 to rotate clockwise, and the positioning rod 17 can drive the receiving box 19 to move to the bottom of the gun head 5 through the mounting rod 18. The end of the positioning rod 17 away from the mounting rod 18 is fixedly installed with a support plate 42, and the side of the support plate 42 close to the positioning rod 17 is in contact with the outer side of the mounting bracket 1, so as to improve the stability of the rotation of the positioning rod 17. Two symmetrically distributed movable plates 22 are fixedly installed on the outer side of the positioning rod 17, and a positioning sleeve 23 is rotatably installed on the outer side of the positioning rod 17. The positioning sleeve 2 The two supports are fixedly mounted on the outer side of the mounting bracket 1, so that the positioning sleeve 23 provides support for the positioning rod 17. The outer side of the positioning sleeve 23 is provided with a slide groove for limiting the sliding of the movable plate 22. When the positioning rod 17 rotates, the movable plate 22 can be driven to move along the slide groove on the positioning sleeve 23. The inner side of the slide groove and the outer side of the movable plate 22 are fixedly mounted with matching magnet plates 24. When the magnet plate 24 on the movable plate 22 contacts the magnet plate 24 on the positioning sleeve 23, the movable plate 22 can be adsorbed and positioned on the inner side of the slide groove, so that the receiving box 19 is suspended on the outer side of the dispensing gun 4 in an inclined state.

[0033] Example 3: Please refer to Figure 2 and Figure 8, this embodiment further illustrates other embodiments, the flattening mechanism shown in the figure includes a mounting ring 25 fixedly mounted on the outside of the glue gun 4, and two symmetrically distributed sleeve frames 26 are fixedly mounted on the outside of the mounting ring 25, so that when the glue gun 4 moves, the two sleeve frames 26 can be driven to move synchronously through the mounting ring 25, and a shaft rod 27 is arranged on the inside of the sleeve frame 26, and a swing rod 28 is fixedly mounted on the outside of the shaft rod 27, and the sleeve frame 26 can drive the swing rod 28 to move synchronously through the shaft rod 27, and the end of the swing rod 28 away from the shaft rod 27 is rotatably mounted with two symmetrically distributed pressure rollers 29, so that the swing rod 28 can drive the pressure roller 29 to move with the top of the LED light string. The two ends of the shaft 27 are connected to the sleeve frame 26 through the coil spring 30. The inner side of the sleeve frame 26 is fixed with a limit rod 31. The outer side of the limit rod 31 contacts the outer side of the swing rod 28. The swing rod 28 is obliquely placed on the outer side of the gun head 5, so that when the pressure roller 29 contacts the LED light string, as the glue gun 4 moves, the swing rod 28 can be driven to swing outward, so that the pressure roller 29 rolls along the outer side of the LED light string, which is convenient for leveling the LED light string. The horizontal height of the pressure roller 29 is lower than the horizontal height of the gun head 5, which is convenient for the pressure roller 29 to contact the surface of the LED light string first.

[0034] Working principle: First, the staff docks the conveying platform 7 on the mounting bracket 1 with the conveying equipment, so that the conveying equipment conveys the LED light string to the bottom of the glue gun 4. At this time, the staff starts the electric telescopic rod 2, so that the electric telescopic rod 2 drives the glue gun 4 to move downward through the mounting plate 3, and the glue gun 4 drives the swing rod 28 on the sleeve frame 26 to move downward through the mounting ring 25. The pressure rollers 29 at the ends of the two swing rods 28 contact the top of the LED light string, so that the pressure rollers 29 drive the swing rods 28 to rotate with the shaft rod 27 as the fulcrum, and the pressure rollers 29 can move along the top of the LED light string to smooth the LED light string, and the glue gun 4 can accurately dispense glue to the lamp beads on the LED light string through the gun head 5. Subsequently, the electric telescopic rod 2 pushes the mounting plate 3 to move upward. The gun head 5 of the glue gun 4 is away from the LED light string, and the conveying equipment drives the LED light string to move, so that the next lamp bead moves to the bottom of the glue gun 4. At the same time, the mounting plate 3 drives the rack plate 21 to contact the gear 20 on the positioning rod 17, so that the rack plate 21 drives the gear 20 to rotate, and the gear 20 drives the positioning rod 17 to rotate, so that the positioning rod 17 drives the magnet plate 24 on the movable plate 22 away from the magnet plate 24 on the positioning sleeve 23 slide groove, and the positioning rod 17 can drive the receiving box 19 to move to the bottom of the gun head 5 through the mounting rod 18. As the glue gun 4 moves, the glue gun 4 drives the pressure plate 33 to contact the baffle 37 on the mounting bracket 1 through the sleeve frame 32, so that the baffle 37 pushes the pressure plate 33 to move along the outer side of the sleeve frame 32, and the first spring 16 is compressed, and the pressing plate 33 drives the installation frame 36 on the moving frame 35 to move synchronously, so that the installation frame 36 drives the moving block 9 to move along the inner side of the installation tube 8 through the pull rod 15, and the moving block 9 pushes the push rod 12 to move, so that the push rod 12 pushes the push block 11 to move along the inner side of the guide tube 10, so that the push block 11 compresses the second spring 34, and the spiral groove on the outer side of the push block 11 moves along the outer side of the spiral strip 43, so that the push block 11 is in a rotating state during the movement, and the push block 11 can rotate and push the elastic pin 13 into the inner side of the gun head 5, and use the elasticity of the elastic pin 13 to make the elastic pin 13 attached to the inner side of the gun head 5 and move, so as to scrape the residual glue on the inner side of the gun head 5 downwards, and the fallen glue can fall into the receiving box 19. Finally, the electric The movable telescopic rod 2 drives the mounting plate 3 to move downward, so that the pressure plate 33 is away from the baffle 37, and the push block 11 is automatically reset by using the resilience of the first spring 16 and the second spring 34, so that the elastic pin 13 can be retracted into the positioning needle tube 14, and the mounting plate 3 drives the gear 20 to rotate and reset through the rack plate 21, so that the gear 20 drives the positioning rod 17 to rotate and reset, and the positioning rod 17 can drive the receiving box 19 away from the gun head 5 through the mounting rod 18, and the positioning rod 17 drives the movable plate 22 to move and reset, so that the magnet plate 24 on the movable plate 22 is adsorbed on the magnet plate 24 on the slide groove of the positioning sleeve 23, so as to realize the positioning of the positioning rod 17, and the receiving box 19 can be tilted on the outside of the dispensing gun 4, and the dispensing gun 4 can approach the next lamp bead again.This enables continuous glue dispensing of LED light strings, thus achieving the effect of automatic blockage removal and ensuring the accuracy of glue dispensing of LED light strings.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision dispensing device for the production and processing of LED light strings, characterized in that: include: A mounting bracket (1) and an electric telescopic rod (2), wherein a mounting plate (3) is mounted on the top of the electric telescopic rod (2), a glue gun (4) is mounted on one end of the mounting plate (3), a gun head (5) is mounted on the bottom of the glue gun (4), a feed box (6) is mounted on the outside of the mounting bracket (1), the feed box (6) is connected to the top of the glue gun (4) via a telescopic hose, and a conveying platform (7) is mounted on one side of the mounting bracket (1); Also includes: A clearing mechanism, used for discharging residual glue in the gun head (5), the clearing mechanism being mounted on the outside of the gun head (5); A material receiving mechanism, used for receiving the glue discharged from the gun head (5), the material receiving mechanism being mounted on the outside of the mounting bracket (1); A flattening mechanism is used to press and position the LED light string on the conveying platform (7), and the flattening mechanism is installed on the outside of the glue dispensing gun (4).

2. According to claim 1, a precise dispensing device for producing and processing LED light strings, characterized in that: The clearing mechanism comprises a mounting tube (8) arranged on the outside of the dispensing gun (4), a moving block (9) being slidably mounted on the inner side of the mounting tube (8), a guide tube (10) being mounted on one end of the moving block (9), a push block (11) being slidably mounted on the inner side of the guide tube (10), a push rod (12) being mounted between the push block (11) and the moving block (9), an elastic plug pin (13) being mounted on one end of the push block (11), a positioning needle tube (14) being slidably mounted on the outer side of the elastic plug pin (13), and the positioning needle tube (14) being obliquely arranged on the inner side of the gun head (5). The push block (11) is connected to the push rod (12) through a rotating shaft, two spiral strips (43) are installed on the inner side of the guide tube (10), and a threaded groove matching the two spiral strips (43) is provided on the outer side of the push block (11). Pull rods (15) are installed on both sides of the push block (11), and a sliding groove for limiting the sliding of the pull rod (15) is provided on the outer side of the mounting tube (8). A first spring (16) is installed between the moving block (9) and the push block (11), and a push-pull component for pushing the pull rod (15) is also provided on the outer side of the glue gun (4).

3. According to claim 2, the precise glue dispensing equipment for producing and processing LED light strings is characterized by: The material receiving mechanism comprises a positioning rod (17) rotatably mounted on the outside of the mounting bracket (1), a mounting rod (18) being mounted on one end of the positioning rod (17), a material receiving box (19) being mounted on one end of the mounting rod (18), a gear (20) being mounted on the outside of the positioning rod (17), a rack plate (21) being mounted on one side of the mounting plate (3), the rack plate (21) being matched with the gear (20), two movable plates (22) being mounted on the outside of the positioning rod (17), a positioning sleeve (23) being rotatably mounted on the outside of the positioning rod (17), the positioning sleeve (23) being mounted on the outside of the mounting bracket (1) via two supports, a slide groove for limiting the sliding of the movable plate (22) being provided on the outside of the positioning sleeve (23), and a matching magnet plate (24) being mounted on the inside of the slide groove and the outside of the movable plate (22).

4. According to claim 3, the precise glue dispensing equipment for producing and processing LED light strings is characterized by: The flattening mechanism comprises a mounting ring (25) mounted on the outside of the dispensing gun (4), two sleeve frames (26) being mounted on the outside of the mounting ring (25), a shaft (27) being arranged on the inside of the sleeve frame (26), a rocker (28) being mounted on the outside of the shaft (27), two pressure rollers (29) being rotatably mounted on one end of the rocker (28), both ends of the shaft (27) being connected to the sleeve frame (26) via a coil spring (30), a limiting rod (31) being mounted on the inside of the sleeve frame (26), and the outside of the limiting rod (31) being in contact with the outside of the rocker (28).

5. According to claim 2, the precise glue dispensing equipment for producing and processing LED light strings is characterized by: The push-pull assembly comprises a sleeve (32) mounted on the outside of the dispensing gun (4), a pressure plate (33) is slidably mounted on the outside of the sleeve (32), a second spring (34) is mounted between the pressure plate (33) and the inner side of the sleeve (32), a movable frame (35) is mounted on the bottom of the pressure plate (33), two mounting frames (36) are mounted on the bottom of the movable frame (35), the two pull rods (15) are respectively slidably mounted on the inner sides of the two mounting frames (36), and a baffle (37) is mounted on the outer side of the mounting bracket (1).

6. According to claim 2, a precise dispensing device for producing and processing LED light strings, characterized in that: A limiting block (38) is installed on one side of the pull rod (15).

7. According to claim 3, the precise glue dispensing equipment for producing and processing LED light strings is characterized by: A material guide cover (39) is installed on the top of the material receiving box (19), and the material guide cover (39) is a hollow truncated cone structure.

8. The precise glue dispensing equipment for producing and processing LED light strings according to claim 3 is characterized by: A heat-conducting inner liner (40) is installed on the inner side of the material receiving box (19), and a heating coil (44) is installed between the outer side of the heat-conducting inner liner (40) and the inner side of the material receiving box (19).

9. The precise glue dispensing equipment for producing and processing LED light strings according to claim 8, characterized in that: A discharge valve (41) is installed between the material receiving box (19) and the heat-conducting inner container (40), and the bottom end of the discharge valve (41) extends to the outside of the material receiving box (19).

10. The precise glue dispensing equipment for producing and processing LED light strings according to claim 3 is characterized by: A support plate (42) is mounted on one end of the positioning rod (17) away from the mounting rod (18).

Images