A fully automatic stitching machine with multi-head hot melt adhesive thread

Abstract

This invention relates to the field of automated equipment, specifically a fully automatic multi-head hot melt adhesive splicing machine. It includes a processing table for placing wood veneer parquet boards. A fixed frame is fixedly connected to the top of the processing table for support. A controller is fixedly connected to the outside of the processing table. Slide grooves are formed on adjacent sides of the fixed frame. A motor is fixedly connected to the rear end of each slide groove. A lead screw is fixedly connected to the output end of the motor. A moving column is threaded onto the outer ring of the lead screw. A mounting groove is formed at the bottom of the moving column, and a moving steering component is installed within the mounting groove. A connecting frame is connected to the bottom of the moving steering component. This invention solves the problems of frequent wire breakage, high labor costs, and low efficiency associated with traditional double-line copper tube heating equipment. It provides fully automated bidirectional grid splicing, increasing production efficiency by 4-6 times. A single machine can replace multiple operators, and it is suitable for automated hot melt splicing processing of various types of wood veneer parquet boards.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, specifically to a fully automatic splicing machine for multi-head hot melt adhesive threads. Background Technology

[0002] In the production of parquet flooring, a laser cutting machine is used to cut wood veneers into different shapes, which are then arranged in a mold frame according to the design. To prevent the veneers from shifting, a manual hot melt glue machine is used to connect the veneer panels into a grid, making it easier to remove and attach them to the glued substrate.

[0003] The existing general-purpose manual hot melt glue machine is equipped with multiple glue line reels, with glue lines passing through thin copper tubes and connected to a rotating wheel. The machine heats the copper tubes with heating wires, and the hot melt glue lines are mounted on the rotating wheel. The worker holds the hot melt glue machine and applies the hot melt glue lines to the wood veneer; dozens to hundreds of hot melt glue lines are applied to each piece of parquet board.

[0004] The existing technology has the following shortcomings:

[0005] 1. Each reel experiences an average of 10 wire breakages, and manual threading and cleaning of copper tubing are labor-intensive and time-consuming.

[0006] 2. Low operating efficiency. For example, it takes about 3 minutes for two workers to operate a 100×100cm mosaic board at the same time, resulting in low production efficiency.

[0007] 3. The work is physically demanding. Workers are prone to injuries and illnesses in their elbows and other areas due to working with a hot melt glue machine for 8 hours.

[0008] Therefore, there is a need for a new type of equipment that is fully automated, requires only one person for maintenance, significantly improves production efficiency, and reduces labor intensity. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a fully automatic multi-head hot melt adhesive thread sewing machine, which solves the problems of low operating efficiency and high labor intensity in existing technologies.

[0010] To achieve the above objectives, the present invention provides a fully automatic multi-head hot melt adhesive thread sewing machine through the following technical solution, comprising:

[0011] A processing table is used to place wood veneer parquet boards. A fixed frame is fixedly connected to the top of the processing table for fixed support. A controller is fixedly connected to the outside of the processing table.

[0012] The fixed frame has sliding grooves on both adjacent sides. A motor is fixedly connected to the rear sliding groove. A lead screw is fixedly connected to the output end of the motor. A moving column is threaded to the outer ring of the lead screw. A mounting groove is opened at the bottom of the moving column. A moving steering component is installed in the mounting groove. A connecting frame is connected to the bottom of the moving steering component. A limit plate is fixedly connected in the connecting frame. A limit groove is opened through the limit plate. A wire spool is installed in the limit groove. A wire outlet hole is opened at the bottom of the wire spool. Multiple wire threading parts are fixedly connected to the outside of the limit plate. A hot air pipe is fixedly connected to the bottom of the connecting frame. A hot air fan is fixedly connected to the front end of the connecting frame. The output end of the hot air fan is fixedly connected to the hot air pipe through a pipe. A uniformly distributed air outlet pipe is fixedly connected through the bottom of the hot air pipe. A wire pressing component is installed at the bottom of the connecting frame. The wire pressing component is located inside the hot air pipe. A wire cutting component is installed on the left side of the bottom of the connecting frame.

[0013] Preferably, the moving steering assembly includes a second motor, which is fixedly connected to the inner wall of the mounting groove. A second lead screw is fixedly connected to the output end of the second motor. A moving block is threadedly connected to the outer ring of the second lead screw. The moving block is disposed in the mounting groove, and a hydraulic cylinder is fixedly connected to the bottom of the moving block. A guide frame is fixedly connected to the outer ring of the hydraulic cylinder. A third motor is fixedly connected to the output end of the hydraulic cylinder. The output end of the third motor is fixedly connected to a connecting frame, and a mounting frame is fixedly connected to the outer ring of the third motor.

[0014] Preferably, the pressure assembly includes a groove seat, the top of which is fixedly connected to a connecting frame, a plurality of springs are fixedly connected inside the groove seat, a telescopic frame is fixedly connected to the bottom of the springs, the telescopic frame is disposed inside the groove seat, and a pressure roller is rotatably connected through the telescopic frame.

[0015] Preferably, the cutting assembly includes a cutter holder, which is fixedly connected to the bottom of the connecting frame. An electric slide rail is fixedly connected to the outside of the cutter holder, and a slide block is slidably connected to the outside of the electric slide rail. A cutter is fixedly connected to the bottom of the slide block, and the cutter is disposed inside the pressure roller.

[0016] Preferably, both ends of the movable column are disposed within the sliding groove, and the outer side of the movable column is slidably connected to the inner wall of the sliding groove.

[0017] Preferably, a connecting rod is fixedly connected to the outside of the connecting frame, and multiple wire conduits are fixedly connected to the outside of the connecting rod, with the wire conduits corresponding to the wire threading parts.

[0018] Preferably, a branch frame is fixedly connected to the outside of the hot air duct, and the branch frame is located below the conductor pipe.

[0019] Preferably, guide rods are fixedly connected to both sides of the top of the mounting frame, and the guide rods pass through and are slidably connected to the guide frame.

[0020] Preferably, the limiting plate has more than two limiting grooves to enable simultaneous feeding and pressing of three or more hot melt adhesive lines.

[0021] Working principle: I. Preparation before operation

[0022] Place the wood veneer parquet board to be processed stably at the designated workstation on the processing table, ensuring the board is firmly fixed and the surface is flat. Place the spool with built-in hot-melt wire into the limiting groove of the limiting plate, and then pass the end of the hot-melt wire through the outlet hole, the wire threading piece, the wire conduit, and the wire distribution frame in sequence, finally leading it to the inside of the pressure roller to complete the hot-melt wire wiring and ensure smooth wire feeding. The entire machine operation is controlled by a unified program from the controller on the outside of the processing table.

[0023] II. Horizontal hot melt coating operation

[0024] Lateral movement drive: The controller starts motor one, which drives lead screw one to rotate; since the moving column is threadedly engaged with lead screw one, and the two ends of the moving column are limited to slide within the groove of the fixed frame, the rotational motion of lead screw one is converted into the left and right lateral linear movement of the moving column, which in turn drives the entire set of moving steering components, connecting frame, wire spool, wire pressing component and wire cutting component below to move laterally synchronously.

[0025] Hot Melting and Glue Application: The hot air blower is started simultaneously, and hot air is delivered through pipes into the hot air duct, then blown out through evenly distributed outlet pipes. This heats the multiple rows of hot melt lines, melting them into liquid glue. In the pressure assembly, the spring within the groove continuously pushes the telescopic frame downwards, ensuring the pressure rollers always conform to the surface of the wood veneer panel. The spool continuously releases hot melt lines as the mechanism moves. The melted glue, under the rolling action of the pressure rollers, is evenly applied to the panel surface, completing the transverse coating of multiple rows of hot melt lines. Rollers assist in the movement, ensuring smooth operation and coating accuracy.

[0026] Transverse tangential coating: When the mechanism moves with the moving column to the end of the transverse coating of the board, the controller shuts off motor one, and the entire transverse movement mechanism stops moving. Then the tangential coating assembly is started. The electric slide rail on the cutter seat drives the slide and the bottom cutter to move, accurately cutting the end of the hot melt line. The cut end of the hot melt line adheres to the pressure roller, completing the transverse coating and tangential coating process.

[0027] III. Mechanism Lifting and 90° Turning

[0028] Overall lifting: After the transverse tangent is completed, the controller controls the hydraulic cylinder to retract. The hydraulic cylinder drives the motor, connecting frame and all the gluing, tangent and pressing structures below to lift upwards simultaneously, so that the pressure roller and cutter are separated from the surface of the board, leaving space for the turning action; during the lifting process, the guide frame on the outside of the hydraulic cylinder slides and limits along the guide rod at the top of the mounting frame to ensure that the lifting is without deviation and the operation is smooth.

[0029] Angle steering: After the hydraulic cylinder retracts to the position, start motor three. Motor three drives the connecting frame and the entire working structure below to rotate synchronously by 90°, switching the coating direction from horizontal to vertical, ensuring that the air outlet pipe and pressure roller are aligned with the longitudinal coating area of ​​the board after the steering.

[0030] Longitudinal station reset: After the turn is completed, start motor 2 drives lead screw 2 to rotate. Lead screw 2 drives moving block to move along the mounting groove, driving all the mechanisms below to move to the initial position at the front of the equipment according to the predetermined trajectory. This movement direction is unidirectional and cannot be reversed.

[0031] IV. Longitudinal hot melt coating operation

[0032] Mechanism descent and contact: After the mechanism returns to its original position, the controller controls the hydraulic cylinder to extend, driving the entire working structure below to fall back down, and the pressure roller contacts the surface of the board again; the spring continues to play an adaptive pressure adjustment role, allowing the pressure roller to fit tightly against the board surface, preparing for longitudinal glue application.

[0033] Longitudinal Glue Application: Starting motor two drives the entire machine's working structure to move longitudinally in a linear motion via lead screw two and moving block. A hot air blower continuously heats and melts the hot melt adhesive, which is then evenly applied to the longitudinal surface of the board by pressure rollers, achieving longitudinal glue application with multiple rows of hot melt lines.

[0034] Longitudinal tangent: When the mechanism reaches the end of the longitudinal coating of the board, motor 2 is turned off and the longitudinal movement stops; the electric slide rail and cutter are restarted to cut the longitudinal end hot melt line. At this point, a dense grid of hot melt adhesive lines is formed on the surface of the wood veneer parquet board, and the horizontal and vertical bidirectional coating process is completed.

[0035] V. Finished Product Removal and Continuous Cyclic Operation

[0036] After the bidirectional coating and cutting of a single board are completed, the controller again controls the hydraulic cylinder to retract and lift the mechanism, and controls the motor to drive the moving column to return to its initial position. The operator removes the processed wood veneer parquet board and places the new board to be processed on the processing table. The equipment is equipped with multiple processing stations, which can alternately feed materials and repeat the entire process, realizing fully automated continuous coating production of wood veneer parquet boards via hot melt coating.

[0037] This invention provides a fully automatic sewing machine for multi-head hot melt adhesive threads. It has the following advantages:

[0038] This invention utilizes a hot air blower to fix hot melt adhesive threads onto the wood veneer as the equipment moves across it. Pressure rollers drive the hot melt adhesive threads, minimizing thread breakage during operation. This significantly reduces the work of threading and cleaning copper pipes. Furthermore, multiple hot melt adhesive threads are laid simultaneously in each row, allowing for the completion of the entire parquet flooring seam in just two passes (horizontal and horizontal), increasing efficiency by 4-6 times. The fully automated operation reduces the risk of elbow injuries caused by prolonged repetitive single-handed operation. Different specifications of multi-head hot melt adhesive thread fully automatic seaming machines can replace the work of 2-6 workers. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a top sectional view of the present invention;

[0041] Figure 3 This is a cross-sectional view of the movable column of the present invention;

[0042] Figure 4 This is a cross-sectional view of the pressure wire assembly of the present invention;

[0043] Figure 5 This is a bottom view of the connecting frame of the present invention.

[0044] The components are as follows: 1. Processing table; 2. Fixing frame; 3. Slide groove; 4. Motor 1; 5. Lead screw 1; 6. Moving column; 7. Mounting groove; 8. Motor 2; 9. Lead screw 2; 10. Moving block; 11. Hydraulic cylinder; 12. Motor 3; 13. Mounting frame; 14. Guide rod; 15. Guide frame; 16. Connecting frame; 17. Limiting plate; 18. Limiting groove; 19. Wire spool; 20. Outlet hole; 21. Wire threading piece; 22. Connecting rod; 23. Wire conduit; 24. Wire distribution frame; 25. Hot air duct; 26. Hot air blower; 27. Outlet duct; 28. Groove seat; 29. ​​Spring; 30. Telescopic frame; 31. Pressure roller; 32. Electric slide rail; 33. Slide seat; 34. Cutting knife; 35. Controller; 36. Cutting knife seat. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example:

[0047] like Figure 1-5As shown, this embodiment of the invention provides a fully automatic splicing machine for multi-head hot melt adhesive lines, including a processing table 1, which is used to place wood veneer parquet boards. A fixing frame 2 is fixedly connected to the top of the processing table 1 for fixing and supporting. A controller 35 is fixedly connected to the outside of the processing table 1.

[0048] The fixed frame 2 has sliding grooves 3 on both adjacent sides. A motor 4 is fixedly connected to the rear sliding groove 3. A lead screw 5 is fixedly connected to the output end of the motor 4. A moving column 6 is threaded to the outer ring of the lead screw 5. A mounting groove 7 is opened at the bottom of the moving column 6. A moving steering assembly is installed in the mounting groove 7. A connecting frame 16 is connected to the bottom of the moving steering assembly. A limit plate 17 is fixedly connected in the connecting frame 16. A limit groove 18 is opened through the limit plate 17. A wire spool 19 is installed in the limit groove 18. The bottom of the 9 has a cable outlet hole 20. Multiple cable threading pieces 21 are fixedly connected to the outside of the limiting plate 17. A hot air pipe 25 is fixedly connected to the bottom of the connecting frame 16. A hot air blower 26 is fixedly connected to the front end of the connecting frame 16. The output end of the hot air blower 26 is fixedly connected to the hot air pipe 25 through a pipe. A uniformly distributed air outlet pipe 27 is fixedly connected through the bottom of the hot air pipe 25. A wire pressing assembly is installed at the bottom of the connecting frame 16. The wire pressing assembly is located inside the hot air pipe 25. A wire cutting assembly is installed on the left side of the bottom of the connecting frame 16.

[0049] Specifically, the processing table 1 is assembled from aluminum alloy profiles with a thickness of not less than 10mm, and the surface is preferably covered with a 2mm thick Teflon (PTFE) high-temperature resistant non-stick pad to prevent accidentally dripped hot melt adhesive from sticking to the table surface. The controller 35 on the outside of the processing table 1 is preferably a Siemens S7-1200 series PLC controller, and is equipped with a Kunlun Tongtai (MCGS) 7-inch industrial touch screen for setting the size of the mosaic board, coating spacing and grid density.

[0050] A sliding groove 3 (X-axis direction) is provided on both adjacent sides above the fixed frame 2. Drive configuration: A motor 4 is fixedly connected in the rear sliding groove 3. The motor 4 is preferably a Panasonic A6 series 750W absolute encoder servo motor. The lead screw 5 fixedly connected to the output end of the motor 4 is a C7 grade ground ball screw (lead 10mm). When the motor 4 drives the lead screw 5 to rotate, the moving column 6 threaded to it achieves precise linear motion in the X-axis direction under the guidance of the sliding groove 3. Its positioning accuracy can reach ±0.05mm, and the maximum moving speed can reach 1.2m / s.

[0051] Ten limiting grooves 18 are formed through the two-layer limiting plates 17. A wire spool 19, wider at the top and narrower at the bottom, is installed within each limiting groove 18. A wire outlet hole 20 is located at the bottom of each wire spool 19. Multiple wire threading pieces 21 (using ceramic scratch-resistant wire eyes) are fixedly connected to the outside of the limiting plates 17. A hot air duct 25 is fixedly connected to the bottom of the connecting frame 16, and a hot air blower 26 (preferably rated power 2000W-3000W, with an infinitely adjustable outlet temperature within the range of 100℃-250℃) is fixedly connected to the front end of the connecting frame 16. The output end of the hot air blower 26 is fixedly connected to the hot air duct 25 via a pipe. Evenly distributed air outlet pipes 27 (with an inner diameter of 3mm-5mm, precisely aligned with the adhesive line position, and corresponding to the pressure roller 31) are fixedly connected through and fixed to the bottom of the hot air duct 25. A wire pressing assembly is installed at the bottom of the connecting bracket 16. The wire pressing assembly is located inside the hot air duct 25. A wire cutting assembly is installed on the left side of the bottom of the connecting bracket 16.

[0052] The moving steering assembly includes a second motor 8, which is fixedly connected to the inner wall of the mounting groove 7. A second lead screw 9 is fixedly connected to the output end of the second motor 8. A moving block 10 is threadedly connected to the outer ring of the second lead screw 9. The moving block 10 is set in the mounting groove 7, and a hydraulic cylinder 11 is fixedly connected to the bottom of the moving block 10. A guide frame 15 is fixedly connected to the outer ring of the hydraulic cylinder 11. A third motor 12 is fixedly connected to the output end of the hydraulic cylinder 11. The output end of the third motor 12 is fixedly connected to a connecting frame 16, and a mounting frame 13 is fixedly connected to the outer ring of the third motor 12.

[0053] Specifically, the bottom of the moving column 6 has a mounting groove 7 (Y-axis direction), inside which is a Y-axis moving assembly consisting of motor 8, lead screw 9, and moving block 10. Motor 8 is also a high-precision servo motor, driving the moving block 10 to reciprocate in the Y-axis direction within the mounting groove 7. This XY dual-axis gantry structure realizes the full-coverage movement of the coating assembly above the wood veneer parquet board. The hydraulic cylinder 11 is preferably a miniature precision double-acting hydraulic cylinder (or a pneumatic-hydraulic damping cylinder), with a rated stroke set to 50mm-80mm. The outer ring of the hydraulic cylinder 11 is fixedly connected to a guide frame 15. To resist lateral displacement during the lifting process, the top two sides of the mounting frame 13 of the outer ring of motor 12 are fixed with guide rods 14 with a diameter of 16mm (the surface is treated with high-frequency quenching and hard chrome plating). The guide rods 14 pass through and slide with the linear bearings in the guide frame 15 to ensure that the verticality error of the lifting is ≤0.02mm.

[0054] The motor 12 connected to the output end of the hydraulic cylinder 11 is a stepper motor with a planetary reducer. After unidirectional (e.g., transverse) coating is completed, the hydraulic cylinder 11 retracts, lifting the entire coating head; then the motor 12 rotates precisely 90°, driving the bottom connecting frame 16, connecting column 17, and moving seat 18 to rotate as a whole. Then the hydraulic cylinder 11 extends and lowers, and the equipment can seamlessly switch to the longitudinal coating state. To prevent dust in the working environment from adhering to the lead screw, telescopic sleeves (preferably flame-retardant and waterproof PVC bellows-style protective covers) are fixedly connected to both sides of the moving column 6 and the moving block 10, and the ends of the telescopic sleeves are fixedly connected to the two ends of the inner wall of the slide groove 3 and the mounting groove 7, respectively.

[0055] The wire pressing assembly includes a groove seat 28, the top of which is fixedly connected to the connecting frame 16. Multiple springs 29 are fixedly connected inside the groove seat 28, and a telescopic frame 30 is fixedly connected to the bottom of the springs 29. The telescopic frame 30 is disposed inside the groove seat 28, and a pressure roller 31 is rotatably connected through the telescopic frame 30.

[0056] Specifically, a groove is provided in the groove seat 28, and multiple springs 29 (preferably stainless steel compression springs with a stiffness coefficient of 1.5N / mm, providing an adaptive downward pressure of about 10N-20N) are fixedly connected in the groove of the groove seat 28. A telescopic frame 30 is fixedly connected to the bottom of the spring 29. The telescopic frame 30 is set in the groove seat 28, and a pressure roller 31 is rotatably connected through the telescopic frame 30.

[0057] The outer surface of the pressure roller 31 is coated with a 2mm thick high-temperature resistant Teflon (PTFE) coating or a high-temperature silicone sleeve. Due to the excellent non-stick properties of Teflon and high-temperature silicone, the molten liquid hot melt adhesive can be completely prevented from adhering to the roller and causing stringing or tangling, ensuring that the adhesive line is pressed flat and aesthetically pleasing.

[0058] The cutting assembly includes a cutter holder 36, which is fixedly connected to the bottom of the connecting frame 16. An electric slide rail 32 is fixedly connected to the outside of the cutter holder 36. A slide block 33 is slidably connected to the outside of the electric slide rail 32. A cutter 34 is fixedly connected to the bottom of the slide block 33 and is located inside the pressure roller 31.

[0059] Specifically, an electric slide rail 32 (preferably a miniature linear module driven by a high-speed synchronous belt, with a sliding speed of up to 0.5 m / s) is fixedly connected to the outside of the cutter holder 36. A slide block 33 is slidably connected to the outside of the electric slide rail 32. A cutter 34 is fixedly connected to the bottom of the slide block 33, and the cutter 34 is located inside the pressure roller 31. The cutter 34 is preferably a high-speed flying knife made of alloy steel. When the coating reaches the edge of the board, the slide block 33 drives the cutter 34 to sweep rapidly, instantly cutting dozens of hot melt glue lines. The cut is clean and does not pull the already bonded glue lines. The top of the cutter 34 is connected to the slide block 33 through an adaptive elastic mechanism. The adaptive elastic mechanism consists of a groove block, a spring, and a telescopic block. The groove block is fixedly connected to the slide block 33. A spring is fixedly connected inside the groove block. The bottom of the spring is fixedly connected to the telescopic block, and the telescopic block is set inside the groove block on one side. The telescopic block is fixedly connected to the cutter 34. During operation, the spring continuously pushes the telescopic block downward, so that the cutter 34 always adaptively conforms to the surface of the wood veneer parquet board.

[0060] Both ends of the movable column 6 are set inside the sliding groove 3, and the outside of the movable column 6 is slidably connected to the inner wall of the sliding groove 3.

[0061] Rolling wheels are installed at both ends of the moving column 6, which can greatly reduce the frictional resistance of the moving column 6 during its movement in the slide groove 3, reduce the load on the motor 4, and improve the smoothness of lateral movement.

[0062] A connecting rod 22 is fixedly connected to the outside of the connecting frame 16, and multiple wire conduits 23 are fixedly connected to the outside of the connecting rod 22, with the wire conduits 23 corresponding to the wire threading piece 21.

[0063] A connecting rod 22 is fixedly connected to the outside of the connecting frame 16, and multiple wire conduits 23 are fixedly connected to the outside of the connecting rod 22, with the wire conduits 23 corresponding to the wire threading piece 21. The inside of the wire conduit 23 is embedded with a smooth polytetrafluoroethylene liner, which can minimize the frictional resistance during the hot melt wire transportation process and avoid wire breakage.

[0064] A branch frame 24 is fixedly connected to the outside of the hot air duct 25, and the branch frame 24 is located below the wire duct 23.

[0065] The wire divider 24 has a comb-like structure. Before the hot melt wire falls to the pressure roller 31, it is forcibly oriented and combed by the wire divider 24 to ensure that each glue wire is precisely aligned with the bottom of the pressure roller 31 and the hot air convergence point of the air outlet 27, preventing adjacent glue wires from getting tangled and knotted before coating.

[0066] Guide rods 14 are fixedly connected to both sides of the top of the mounting bracket 13, and the guide rods 14 pass through and are slidably connected to the guide bracket 15.

[0067] The guide rod 14 slides along both sides of the guide frame 15, thereby limiting and guiding the movement of the motor 12 and ensuring its stability.

[0068] The limiting plate 17 has more than two limiting grooves 18, enabling three or more hot melt adhesive lines to be fed and coated simultaneously.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic sewing machine for multi-head hot melt adhesive threads, characterized in that, include: A processing table (1) is used to place wood veneer parquet boards. A fixed frame (2) is fixedly connected to the top of the processing table (1). The fixed frame (2) is used for fixed support. A controller (35) is fixedly connected to the outside of the processing table (1). The fixed frame (2) has a sliding groove (3) on each adjacent side. A motor (4) is fixedly connected in the sliding groove (3) at the rear end. A lead screw (5) is fixedly connected to the output end of the motor (4). A moving column (6) is threaded to the outer ring of the lead screw (5). An installation groove (7) is provided at the bottom of the moving column (6). A moving steering assembly is provided in the installation groove (7). A connecting frame (16) is connected to the bottom of the moving steering assembly. A limiting plate (17) is fixedly connected in the connecting frame (16). A limiting groove (18) is provided through the limiting plate (17). A bobbin (1) is provided in the limiting groove (18). 9) The bottom of the spool (19) is provided with a wire outlet hole (20). Multiple wire threading parts (21) are fixedly connected to the outside of the limiting plate (17). The bottom of the connecting frame (16) is fixedly connected with a hot air pipe (25). The front end of the connecting frame (16) is fixedly connected with a hot air blower (26). The output end of the hot air blower (26) is fixedly connected to the hot air pipe (25) through a pipe. The bottom of the hot air pipe (25) is connected with evenly distributed air outlet pipes (27). The bottom of the connecting frame (16) is equipped with a wire pressing assembly. The wire pressing assembly is located inside the hot air pipe (25). The bottom left side of the connecting frame (16) is equipped with a wire cutting assembly.

2. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: The moving steering assembly includes a second motor (8), which is fixedly connected to the inner wall of the mounting groove (7). A second lead screw (9) is fixedly connected to the output end of the second motor (8). A moving block (10) is threadedly connected to the outer ring of the second lead screw (9). The moving block (10) is set in the mounting groove (7), and a hydraulic cylinder (11) is fixedly connected to the bottom of the moving block (10). A guide frame (15) is fixedly connected to the outer ring of the hydraulic cylinder (11). A third motor (12) is fixedly connected to the output end of the hydraulic cylinder (11). The output end of the third motor (12) is fixedly connected to the connecting frame (16), and a mounting frame (13) is fixedly connected to the outer ring of the third motor (12).

3. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: The pressure assembly includes a groove seat (28), the top of which is fixedly connected to a connecting frame (16). Multiple springs (29) are fixedly connected inside the groove seat (28), and a telescopic frame (30) is fixedly connected to the bottom of each spring (29). The telescopic frame (30) is located inside the groove seat (28), and a pressure roller (31) is rotatably connected through the telescopic frame (30).

4. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: The tangent assembly includes a cutter holder (36), which is fixedly connected to the bottom of the connecting frame (16). An electric slide rail (32) is fixedly connected to the outside of the cutter holder (36), and a slide block (33) is slidably connected to the outside of the electric slide rail (32). A cutter (34) is fixedly connected to the bottom of the slide block (33), and the cutter (34) is located inside the pressure roller (31).

5. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: Both ends of the movable column (6) are set in the sliding groove (3), and the outside of the movable column (6) is slidably connected to the inner wall of the sliding groove (3).

6. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: The connecting frame (16) is fixedly connected to a connecting rod (22) on the outside, and multiple wire tubes (23) are fixedly connected to the outside of the connecting rod (22), and the wire tubes (23) correspond to the wire threading piece (21).

7. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: A splitter frame (24) is fixedly connected to the outside of the hot air duct (25), and the splitter frame (24) is located below the conductor pipe (23).

8. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 2, characterized in that: Guide rods (14) are fixedly connected to both sides of the top of the mounting frame (13), and the guide rods (14) pass through and are slidably connected to the guide frame (15).

9. The fully automatic multi-head hot melt adhesive thread sewing machine according to claim 1, characterized in that: The limiting plate (17) has more than two limiting grooves (18), which enables three or more hot melt adhesive lines to be fed and coated simultaneously.

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