A reel uniform heat shrink packaging device and packaging method thereof

Abstract

This invention discloses a reel-based uniform heat shrink packaging equipment and its packaging method, belonging to the field of heat shrink film packaging technology. It includes a frame, a feeding conveyor line, a wrapping conveyor line, an unloading conveyor line, and a support. Both the inlet and outlet ends of the wrapping conveyor line are equipped with a 90-degree flipping mechanism for switching between vertical and horizontal positions of the welding wire reel. The lower end of the support is equipped with a film-supporting heat-sealing and cutting mechanism. A cuff-folding auxiliary heat shrink mechanism is installed inside the heating chamber of the heat shrink oven. This cuff-folding auxiliary heat shrink mechanism includes a lifting component, an inward folding component, and a cuff hot air nozzle. In this manner, the welding wire reel enters the heat shrink oven and is lifted by the lifting component. The inward folding components on both sides approach the cuff and fold the cuff in a rotating manner towards the axis of the welding wire reel. The cuff hot air nozzle blows hot air onto the folded cuff, increasing the temperature at the cuff and allowing the heat shrink film to uniformly cover the welding wire reel. Even with a narrower width, the welding wire reel can be completely covered.

Description

Technical Field

[0001] The invention relates to the technical field of heat shrink film packaging, and in particular to a reel uniform heat shrink packaging device and a packaging method thereof. Background Art

[0002] After production is completed, the welding wire reel needs to go through the steps of laser coding, anti-rust paper wrapping, plastic sealing and packaging. In the plastic sealing step, the welding wire reel needs to be wrapped with heat shrink film and sent to a heat shrink furnace for heating, so that the welding wire reel is tightly sealed to effectively prevent the entry of dust and moisture, avoid direct exposure of the welding wire to the air, and protect the quality of the welding wire.

[0003] Chinese patent application CN116620642A discloses a new type of cuff-type packaging machine, including a frame, on which a stripping mechanism, a material receiving mechanism, a material feeding mechanism, a cutting mechanism, a material pressing mechanism, a film placing mechanism and a film collecting mechanism are respectively arranged. When in use, each mechanism automatically cooperates to jointly complete the packaging of the tape. However, the packaging machine still has the following problems:

[0004] 1. When the heat shrink film is wrapped around the outside of the wire reel, a cuff structure is formed. If the width of the heat shrink film is large, the consumption of the heat shrink film will also increase, increasing the production cost; if the width of the heat shrink film is small, the cuff on the outside of the wire reel will also become shorter. When the heat shrink film is heated in the heat shrink furnace, the heat shrink film may not be able to completely cover the wire reel due to the different shrinkage speeds at different locations, increasing the defective rate;

[0005] 2. After the heat shrink film is heat-sealed and cut off, the upper heat shrink film will automatically center under the action of gravity, while the lower heat shrink film will briefly adhere to the cutter and move up with the cutter and shake when it falls back, making the lower shrink film not centered. As a result, after the shrink film wraps the workpiece, the lengths of the cuffs at both ends of the workpiece are different, resulting in uneven covering during heat shrinkage, increasing the defective rate.

[0006] Based on this, the present invention designs a reel uniform heat shrink packaging device and a packaging method thereof to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a reel uniform heat shrink packaging device and a packaging method thereof.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A reel uniform heat shrink packaging device comprises a frame, a feeding conveyor line, a film wrapping conveyor line, a unloading conveyor line and a bracket;

[0010] The film coating conveyor line is installed on the frame, the loading conveyor line is located at the feeding end side of the film coating conveyor line, and the unloading conveyor line is located at the discharging end side of the film coating conveyor line;

[0011] A 90-degree flip mechanism for switching the welding wire reel between vertical and horizontal positions is provided between the discharge end of the loading conveyor line and the feed end of the coating conveyor line, and between the discharge end of the coating conveyor line and the feed end of the unloading conveyor line;

[0012] A bracket and a heat shrink furnace are fixedly installed on the top of the frame, and the heat shrink furnace is located on the right side of the bracket;

[0013] The top of the bracket and the left end of the frame are both rotatably mounted with film guide rollers for guiding the discharge of the heat shrink film;

[0014] The upper end of the bracket is equipped with a stable disc moving mechanism for moving the welding wire disc from the 90-degree turning mechanism at the discharge end of the feeding conveyor line to the feed end of the coating conveyor line;

[0015] The lower end of the bracket is provided with a film support heat sealing and cutting mechanism for heat sealing and cutting the film after the wire reel is wrapped with the heat shrink film; the film support heat sealing and cutting mechanism is located between the rightmost film guide roller and the heat shrink furnace;

[0016] The lower end of the frame is provided with a synchronous film suction and straightening mechanism for simultaneously adsorbing and fixing the heat shrinkable film on the lower side when the heat shrinkable film is heat-sealed and cut;

[0017] A cuff inward folding auxiliary heat shrinking mechanism is arranged in the heating chamber of the heat shrinking furnace, and the cuff inward folding auxiliary heat shrinking mechanism includes a lifting component, an inward folding component and a cuff hot air nozzle. The lifting component is arranged on the lower side of the frame and is used to lift the welding wire reel from the film coating conveyor line to achieve uniform heating of the heat shrinking film; the front and rear inner walls of the heat shrinking furnace are symmetrically provided with inward folding components for bending and fixing the cuff structure inward; the inward folding component is equipped with a cuff hot air nozzle facing the heat shrinking film cuff, and the cuff hot air nozzle is used to make the cuff have higher and more concentrated hot air.

[0018] Furthermore, the inward folding component includes a fixed annular plate, an active gear ring, a driven gear, an inward folding arc plate, a transverse rod, a connecting frame, an inward folding driving cylinder and a transverse cylinder. The transverse cylinder is fixedly connected to the outer wall of the heat shrinking furnace, and the output end of the transverse cylinder passes through the side wall of the heat shrinking furnace and is fixedly connected to the connecting frame; a plurality of transverse rods are fixedly installed on the end of the connecting frame, and one end of the transverse rod is limitedly slidably connected to the side wall of the heat shrinking furnace, and the other end of the transverse rod is fixedly connected to the fixed annular plate; the active gear ring is rotatably connected to the fixed annular plate through a bearing; a plurality of driven gears are evenly arranged on the inner side of the active gear ring in a circular array with equal intervals; the driven gear is meshedly connected to the active gear ring and rotatably connected to the fixed annular plate, and each driven gear is fixedly connected to the inward folding arc plate; the shell of the inward folding driving cylinder is hinged to the transverse rod, and the output end of the inward folding driving cylinder is hinged to the active gear ring.

[0019] Furthermore, the film-supporting heat-sealing cutting mechanism includes a slide bar, an upper vertical moving plate, a lower vertical moving plate, a film-supporting heat-sealing cutting knife assembly, a film-supporting heat-sealing knife seat assembly and a synchronous driving assembly, and a fixed plate is fixedly installed on the top of the bracket; two slide bars are symmetrically distributed on the front and rear sides of the frame, the upper end of the slide bar is fixedly connected to the fixed plate, and the lower end of the slide bar is fixedly connected to the lower end of the frame; the upper vertical moving plate and the lower vertical moving plate are arranged on the upper and lower sides of the frame and are limitedly slidably connected to the slide bar;

[0020] A film-supporting heat-sealing cutter assembly is installed on the upper vertical moving plate, and a film-supporting heat-sealing knife seat assembly is installed on the lower vertical moving plate; the film-supporting heat-sealing cutter assembly and the film-supporting heat-sealing knife seat assembly cooperate to heat-seal and cut the heat shrink film;

[0021] The synchronous driving component is arranged at the lower end of the frame, and is used for driving the upper vertical moving plate and the lower vertical moving plate to move synchronously towards each other.

[0022] Furthermore, the film-supporting heat-sealing cutter assembly comprises a cutter, a heat-sealing plate, a first fixed block, a first inclined groove, a first inclined block, a first tension spring and a first connecting block. The cutter is connected to the upper vertical moving plate through a spring guide rod floating structure. The two heat-sealing plates are symmetrically distributed on the left and right sides of the cutter; the front and rear ends of the cutter are fixedly installed with the first fixed blocks; the left and right sides of the first fixed block are symmetrically provided with the first inclined grooves, and the front and rear ends of the heat-sealing plate are respectively fixedly installed with the first inclined blocks which are limitedly slidably connected with the first inclined grooves;

[0023] The first connecting block is fixedly connected to the first fixing block, the left and right ends of the first connecting block are respectively fixedly installed with first tension springs, and one end of the first tension spring away from the first connecting block is respectively fixedly connected to the first inclined block.

[0024] Furthermore, the film-supporting heat-sealing knife seat assembly includes a knife seat, a pad, a second fixed block, a second inclined groove, a second inclined block, a second tension spring and a second connecting block. The knife seat is connected to the lower vertical moving plate through a spring guide rod floating structure, and the two pads are symmetrically distributed on the left and right sides of the knife seat; the front and rear ends of the knife seat are fixedly installed with the second fixed blocks; the left and right sides of the second fixed block are symmetrically provided with second inclined grooves, and the front and rear ends of the pad are respectively fixedly installed with second inclined blocks that are limitedly slidably connected with the second inclined grooves;

[0025] The second connecting block is fixedly connected to the second fixing block, the left and right ends of the second connecting block are respectively fixedly installed with second tension springs, and one end of the second tension spring away from the second connecting block is respectively fixedly connected to the second inclined block;

[0026] A groove matching the cutting knife is provided on the knife seat along the length direction of the knife seat.

[0027] Furthermore, the synchronous drive assembly includes a support plate, a limit plate, a first rack, a first connecting rod, a second rack, a second connecting rod, a synchronous gear, a limit wheel and a heat-sealing film cutting cylinder. The support plate is fixedly mounted at the lower end of the frame, and the limit plate is symmetrically fixedly mounted on the front and rear ends of the support plate; a synchronous gear is rotatably mounted on the middle part of the inner side of the limit plate through a bearing, and a plurality of limit wheels are symmetrically rotatably mounted on the inner sides of the limit plate; the first rack and the second rack are symmetrically arranged on both sides of the synchronous gear; the side surfaces of the first rack and the second rack are slidingly connected with the inner side of the limit plate, meshingly connected with the synchronous gear at one end close to each other, and rollingly connected with the limit wheel at one end away from each other; the two ends of the first connecting rod are respectively fixedly connected with the first rack and the upper vertical moving plate, and the two ends of the second connecting rod are respectively fixedly connected with the second rack and the lower vertical moving plate; the heat-sealing film cutting cylinder is fixedly mounted on the support plate, and the output end of the heat-sealing film cutting cylinder is fixedly connected with the lower vertical moving plate.

[0028] Furthermore, the 90-degree flip mechanism includes a support frame, a flip servo motor, a rotating shaft, a flip frame and a positioning baffle, the top of the support frame is rotatably mounted with a rotating shaft through a bearing, the flip servo motor is fixedly mounted on the top of the support frame, and the output end of the flip servo motor is fixedly connected to the rotating shaft; two flip frames are symmetrically mounted at both ends of the rotating shaft; a positioning baffle for blocking and positioning the welding wire reel is also fixedly mounted on the top of the support frame;

[0029] The flip frame is configured as a field-shaped frame structure, the center of which is fixedly connected to the rotating shaft; a limit lever is fixedly installed in the middle of each side of the field-shaped frame, and the limit lever and the side of the field-shaped frame form an L-shaped support structure for supporting and flipping the welding wire reel.

[0030] Furthermore, the stable disc moving mechanism includes a transverse moving assembly, a transverse moving frame, a vertical moving assembly, a mounting frame and a stable disc taking assembly. The transverse moving assembly is arranged on the top of the bracket, the movable end of the transverse moving assembly is fixedly installed with the transverse moving frame, the transverse moving frame is provided with a vertical moving assembly, and the movable end of the vertical moving assembly is fixedly installed with the mounting frame; the mounting frame is provided with a stable disc taking assembly for taking and placing the welding wire reel.

[0031] Furthermore, the stable disc picking assembly includes a material picking cylinder, a guide rod, a fixed pressure block, a positioning rod and a positioning plate. The material picking cylinder is fixedly installed on the upper end of the mounting frame, and the output end of the material picking cylinder passes through the mounting frame and is fixedly connected to the fixed pressure block, the lower end of the guide rod is fixedly connected to the fixed pressure block, and the upper end of the guide rod is limitedly slidably connected to the mounting frame; the lower end of the fixed pressure block is set to an arc shape that fits the welding wire reel, and the lower end of the fixed pressure block is provided with a rubber pad layer; the lower end of the mounting frame is fixedly installed with a positioning rod plugged into the welding wire reel through a connecting piece; one end of the positioning rod is fixedly installed with a positioning plate for positioning the welding wire reel, and the other end of the positioning rod is provided with a material guide slope.

[0032] In order to better achieve the purpose of the present invention, the present invention also provides a packaging method of a reel uniform heat shrink packaging device, comprising the following steps:

[0033] Step 1: The feeding conveyor line conveys the welding wire reel wrapped with anti-rust paper to the direction of the coating conveyor line. When the welding wire reel in a flat state moves from the discharge end of the feeding conveyor line to the L-shaped support structure of the flip rack and is blocked and limited by the positioning baffle, the flip servo motor controls the rotating shaft to rotate 90 degrees, so that the welding wire reel changes from a flat position to a vertical position;

[0034] Step 2: The lateral movement component and the vertical movement component cooperate to control the lateral and vertical movement of the mounting frame, insert the positioning rod into the inner side of the welding wire reel, and the side of the welding wire reel is fitted with the positioning plate, and then the fixed pressure block is controlled by the material taking cylinder to move vertically downward under the limiting action of the guide rod, so that the fixed pressure block is against the side of the welding wire reel, and the welding wire reel is limited by the fixed pressure block, the positioning rod and the positioning plate, and finally the welding wire reel is placed vertically above the heat shrink film on the film packaging conveyor line;

[0035] Step 3: The film wrapping conveyor line drives the welding wire reel to push the heat shrink film to move to the right, so that the heat shrink film gradually wraps the welding wire reel. When the welding wire reel passes between the cutter and the knife seat, the upper vertical moving plate is controlled to move vertically downward and the lower vertical moving plate is controlled to move vertically upward by the synchronous drive component, so that the upper vertical moving plate and the lower vertical moving plate gradually approach each other;

[0036] Step 4: After the heat sealing plate and the backing plate are in contact, the heat shrink film is heat-sealed. At this time, the upper vertical moving plate and the lower vertical moving plate continue to approach each other, so that the cutter and the knife holder are approaching each other, and the heat sealing plate and the backing plate are both opened, so that the heat shrink film to be cut after heat sealing is opened and tightened, and then the cutter and the knife holder cooperate to complete the cutting operation of the heat shrink film, so that the heat shrink film completely wraps the welding wire reel and forms a cuff structure;

[0037] Step 5: The film coating conveyor line drives the welding wire reel into the heat shrinking furnace, and the heat shrinking furnace heats the heat shrinking film on the outside of the welding wire reel; when the welding wire reel moves to the set position, the welding wire reel is lifted up by the lifting assembly, and the hot air in the heat shrinking furnace blows evenly to the welding wire reel;

[0038] Step 6: The transverse cylinder controls the fixed annular plate and the active gear ring through the connecting frame to move horizontally toward the wire reel under the limiting action of the transverse rod, so that the inner folded arc plate is sleeved on the outside of the cuff and distributed along the radial direction of the cuff; then the inner folding drive cylinder controls the active gear ring to rotate so that all the driven gears rotate synchronously, and then all the inner folded arc plates are unfolded synchronously, and the inner folded arc plate rotates to fold the cuff to the side of the wire reel in the axial direction of the wire reel, and the cuff hot air nozzle continues to blow hot air to the folded cuff, so that the cuff shrinks evenly and completely covers the wire reel; the lifting assembly is reset to make the packaged wire reel fall back on the film packaging conveyor line;

[0039] Step 7: The wrapping conveyor line conveys the shrink-wrapped wire reel to the right. After the wire reel enters between the limiting side plates, it falls along the discharge inclined plate onto the flip rack of the 90-degree flip mechanism and is blocked by the positioning baffle. At this time, the wire reel is placed vertically on the flip rack. Then the flip servo motor drives the flip rack to rotate 90 degrees through the rotating shaft, so that the vertical wire reel is transformed into a flat state and falls on the unloading conveyor line, and the flat wire reel is transported to the next process by the unloading conveyor line.

[0040] Compared with the prior art, the present invention has the following beneficial effects: 1. The film coating conveyor line drives the welding wire reel into the heat shrinking furnace, the lifting assembly lifts the welding wire reel, and the heat shrinking furnace heats the heat shrinking film on the outside of the welding wire reel, while the inner folding assemblies on both sides are close to the cuffs and fold the cuffs in a rotating manner toward the axial direction of the welding wire reel, and the cuff hot air nozzles on the inner folding assemblies blow hot air to the folded cuffs, so that the cuffs of the heat shrinking film are at a higher temperature than other positions, so that the heat shrinking film evenly coats the welding wire reel, and the heat shrinking film can completely coat the welding wire reel when the width is smaller, effectively increasing the yield rate of heat shrink packaging of the welding wire reel;

[0041] 2. After the heat sealing plate and the backing plate are in contact, they heat seal the heat shrink film and then open, so that the heat shrink film to be cut is opened and tightened, and then the cutter and the knife seat cooperate to complete the cutting operation of the heat shrink film, which not only makes the edge of the heat shrink film cut flat and smooth, but also reduces the wear of the cutter, effectively avoids the sticking phenomenon, and improves the yield rate;

[0042] 3. When the heat shrink film is heat-sealed and cut, the heat shrink film on the lower side is tightened and lifted, and the synchronous plate and the lower vertical moving plate move upward synchronously, so that the upper end of the vacuum suction block is close to the lower end of the tightened heat shrink film to absorb and fix the heat shrink film, and after the heat-sealed and cut, the vacuum suction block absorbs the heat shrink film on the lower side and drives the heat shrink film to move downward synchronously, and finally the heat shrink film falls smoothly on the conveying roller of the film coating conveyor line and then releases the heat shrink film, thereby avoiding the heat shrink film from shaking, bouncing, etc., so that the position of the heat shrink film is always stably located in the middle of the film coating conveyor line, so that when the width of the shrink film is small, the two cuffs formed by the shrink film on the outside of the welding wire reel are of the same length, which is conducive to uniform coating of the welding wire reel;

[0043] 4. The two sets of 90-degree flipping mechanisms at the feeding end and the discharging end of the film coating conveyor line are used to realize the automatic flipping operation of the welding wire reel, and the horizontal and vertical states of the welding wire reel can be switched freely. This can not only meet the posture requirements of the welding wire reel in different packaging processes, but also make the welding wire reel more stable during the circulation of different packaging processes. In addition, the flipping speed is fast and the flipping effect is stable, which effectively improves the packaging efficiency of the welding wire reel and realizes the automation and batch production of the packaging process.

[0044] 5. The positioning of the welding wire reel is limited by the fixed pressure block, the positioning rod and the positioning plate, which effectively prevents the position of the welding wire reel from shifting during movement and ensures the accurate transfer of the welding wire reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 This is a three-dimensional picture of the welding wire reel wrapped with heat shrink film;

[0047] Figure 2 A three-dimensional reel uniform heat shrink packaging device of the present invention Figure 1 ;

[0048] Figure 3 It is a front view of a reel uniform heat shrink packaging device of the present invention;

[0049] Figure 4 A three-dimensional reel uniform heat shrink packaging device of the present invention Figure 2 ;

[0050] Figure 5 A three-dimensional diagram of the cuff inward folding auxiliary heat shrinking mechanism of the present invention;

[0051] Figure 6 A three-dimensional diagram of the feeding conveyor line of the present invention;

[0052] Figure 7 It is a three-dimensional diagram of the unloading conveying line of the present invention;

[0053] Figure 8 A three-dimensional diagram of the film coating conveying line of the present invention;

[0054] Fig. 9 It is a three-dimensional diagram of the stable plate shifting mechanism of the present invention;

[0055] Fig.10 A three-dimensional diagram of the film support heat sealing and cutting mechanism of the present invention;

[0056] Fig.11 It is a stereoscopic view of the film-supporting heat-sealing cutting knife assembly and the film-supporting heat-sealing knife holder assembly of the present invention.

[0057] The numbers in the figure represent:

[0058] 10. Frame; 11. Loading conveyor line; 12. Film coating conveyor line; 13. Unloading conveyor line; 14. Bracket; 15. Heat shrink oven; 16. Film guide roller; 17. Limiting side plate; 18. Discharging inclined plate; 2. Ninety-degree turning mechanism; 21. Support frame; 22. Turning servo motor; 23. Rotating shaft; 24. Turning frame; 25. Positioning baffle; 3. Stable plate moving mechanism; 31. Transverse moving assembly; 311. Transverse moving servo motor; 312. Screw rod; 313. Linear slide rail assembly; 32. Transverse moving frame; 33. Vertical Shift assembly; 34, mounting frame; 35, stable plate assembly; 351, material taking cylinder; 352, guide rod; 353, fixed pressure block; 354, positioning rod; 355, positioning plate; 4, film support heat seal cutting mechanism; 41, slide bar; 42, upper vertical shift plate; 43, lower vertical shift plate; 44, film support heat seal cutter assembly; 441, cutter; 442, heat sealing plate; 443, first fixed block; 444, first inclined slot; 445, first inclined block; 446, first tension spring; 447, first connecting block; 45, support Film heat sealing knife seat assembly; 451, knife seat; 452, pad; 453, second fixed block; 454, second inclined slot; 455, second inclined block; 456, second tension spring; 457, second connecting block; 46, synchronous drive assembly; 461, support plate; 462, limit plate; 463, first rack; 464, first connecting rod; 465, second rack; 466, second connecting rod; 467, synchronous gear; 468, limit wheel; 469, heat sealing film breaking cylinder; 5, synchronous film suction and straightening mechanism; 51, same Step plate; 52, connecting seat; 53, vacuum suction block; 6, cuff inner fold auxiliary heat shrink mechanism; 61, lifting assembly; 611, cross bar; 612, lifting cylinder; 613, push rod; 614, arc-shaped support plate; 615, connecting plate; 62, inner folding assembly; 621, fixed annular plate; 622, active gear ring; 623, driven gear; 624, inner folding arc plate; 625, transverse rod; 626, connecting frame; 627, inner folding drive cylinder; 628, transverse cylinder; 63, cuff hot air nozzle; 7, welding wire reel. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0060] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0061] Embodiment 1: In some embodiments, please refer to Figure 1-Figure 8 , a reel uniform heat shrink packaging equipment, including a frame 10, a feeding conveyor line 11, a film wrapping conveyor line 12, a unloading conveyor line 13 and a bracket 14;

[0062] The coating conveyor line 12 is installed on the frame 10, the loading conveyor line 11 is located at the feeding end side of the coating conveyor line 12, and the unloading conveyor line 13 is located at the discharging end side of the coating conveyor line 12; the loading conveyor line 11 and the unloading conveyor line 13 adopt power roller conveyor lines; the coating conveyor line 12 adopts a double-row chain conveyor, and a plurality of conveyor rollers are rotatably installed between the two rows of chains of the coating conveyor line 12, and the conveyor rollers are evenly distributed at equal intervals along the chain motion trajectory;

[0063] A 90-degree turning mechanism 2 is provided between the discharge end of the feeding conveyor line 11 and the feed end of the coating conveyor line 12, and between the discharge end of the coating conveyor line 12 and the feed end of the unloading conveyor line 13; the welding wire reel 7 on the feeding conveyor line 11 and the unloading conveyor line 13 is flatly placed on the rollers for transportation, and the welding wire reel 7 on the coating conveyor line 12 is vertically placed between the conveying rollers for cuff-type heat-sealing packaging of the welding wire reel 7; the flatly placed welding wire reel 7 is more stable during transportation and is not easy to deviate, and the welding wire reel 7 is usually automatically wrapped with anti-rust paper and packed in a flat posture, which is convenient for the circulation of the welding wire reel 7 between the completion of production and the completion of packaging operations;

[0064] A bracket 14 and a heat shrink oven 15 are fixedly mounted on the top of the frame 10, and the heat shrink oven 15 is located on the right side of the bracket 14;

[0065] The top of the bracket 14 and the left end of the frame 10 are both rotatably mounted with a film guide roller 16 for guiding the heat shrink film to be discharged;

[0066] The upper end of the bracket 14 is provided with a stable disc moving mechanism 3 for moving the welding wire disc 7 from the 90-degree turning mechanism 2 at the discharge end of the feeding conveyor line 11 to the feed end of the coating conveyor line 12;

[0067] The lower end of the bracket 14 is provided with a film support heat sealing and cutting mechanism 4 for heat sealing and cutting the film after the wire reel 7 is wrapped with the heat shrink film; the film support heat sealing and cutting mechanism 4 is located between the rightmost film guide roller 16 and the heat shrink furnace 15;

[0068] The lower end of the frame 10 is provided with a synchronous film suction and straightening mechanism 5 for simultaneously adsorbing and fixing the heat shrinkable film on the lower side when the heat shrinkable film is heat-sealed and cut;

[0069] A cuff inward folding auxiliary heat shrinking mechanism 6 is arranged in the heating chamber of the heat shrinking furnace 15, and the cuff inward folding auxiliary heat shrinking mechanism 6 includes a lifting component 61, an inward folding component 62 and a cuff hot air nozzle 63. The lifting component 61 is arranged on the lower side of the frame 10 and is used to lift the welding wire reel 7 from the film coating conveyor line 12 to achieve uniform heating of the heat shrink film; the front and rear inner walls of the heat shrinking furnace 15 are symmetrically provided with inward folding components 62 for bending and fixing the cuff structure inward; the inward folding component 62 is installed with a cuff hot air nozzle 63 facing the heat shrink film cuff, and the cuff hot air nozzle 63 is used to make the cuff have higher and more concentrated hot air.

[0070] In the present invention, the feeding conveyor line 11 conveys the welding wire reel 7 wrapped with anti-rust paper to the direction of the film coating conveyor line 12. When the welding wire reel 7 moves to the discharge end of the feeding conveyor line 11, the ninety-degree turning mechanism 2 turns the welding wire reel 7 placed flat on the feeding conveyor line 11 by ninety degrees, and then the stable plate moving mechanism 3 moves the turned welding wire reel 7 to the film coating conveyor line 12, so that the welding wire reel 7 is placed vertically above the heat shrink film on the film coating conveyor line 12.

[0071] The film wrapping conveyor line 12 drives the welding wire reel 7 to push the heat shrink film to move to the right, so that the heat shrink film gradually wraps the welding wire reel 7. When the welding wire reel 7 passes through the film support heat sealing cutting mechanism 4, the film support heat sealing cutting mechanism 4 heat seals and cuts off the heat shrink film, so that the heat shrink film completely wraps the welding wire reel 7 and forms a cuff structure.

[0072] The film coating conveyor line 12 drives the welding wire reel 7 into the heat shrinking furnace 15, and the heat shrinking furnace 15 heats the heat shrinking film on the outside of the welding wire reel 7; when the welding wire reel 7 moves to the set position, the welding wire reel 7 is lifted up by the lifting assembly 61, and then the inner folding assemblies 62 on both sides are close to the cuffs, and the cuffs are folded in a rotational manner toward the axial direction of the welding wire reel 7, and the cuff hot air nozzles 63 on the inner folding assembly 62 blow hot air to the folded cuffs, so that the cuffs of the heat shrinking film are at a higher temperature than other positions, so that the heat shrinking film evenly covers the welding wire reel 7, and the heat shrinking film can completely cover the welding wire reel 7 under the condition of a smaller width, effectively increasing the yield rate of the heat shrinking packaging of the welding wire reel 7;

[0073] After the heat-sealed wire reel 7 is moved to the discharge end of the film-wrapping conveyor line 12, it is turned 90 degrees by the 90-degree turning mechanism 2 to the unloading conveyor line 13, and the unloading conveyor line 13 conveys the flat wire reel 7 to the packing station.

[0074] Embodiment 2: In some embodiments, Figure 5As shown, as a preferred embodiment of the present invention, the lifting assembly 61 includes a cross bar 611, a lifting cylinder 612, a push rod 613, an arc-shaped support plate 614 and a connecting plate 615. The cross bar 611 is fixedly installed at the lower end of the frame 10, and the lifting cylinder 612 is fixedly connected to the cross bar 611; two push rods 613 are symmetrically distributed on the front and rear sides of the cross bar 611; the upper end of the push rod 613 is fixedly installed with an arc-shaped support plate 614 for lifting the welding wire reel 7; the lower end of the push rod 613 is limitedly slidably connected to the cross bar 611, and the two push rods 613 pass through the cross bar 611 and are fixedly connected to the connecting plate 615; the output end of the lifting cylinder 612 is fixedly connected to the connecting plate 615;

[0075] The inner folding assembly 62 includes a fixed annular plate 621, a driving gear ring 622, a driven gear 623, an inner folding arc plate 624, a transverse rod 625, a connecting frame 626, an inner folding driving cylinder 627 and a transverse cylinder 628. The transverse cylinder 628 is fixedly connected to the outer wall of the heat shrinking furnace 15, and the output end of the transverse cylinder 628 passes through the side wall of the heat shrinking furnace 15 and is fixedly connected to the connecting frame 626; a plurality of transverse rods 625 are fixedly installed at the end of the connecting frame 626, and one end of the transverse rod 625 is limitedly slidably connected to the side wall of the heat shrinking furnace 15, and the other end of the transverse rod 625 is fixedly connected to the fixed annular plate 621. The driving gear ring 622 is rotatably connected to the fixed annular plate 621 through a bearing; a plurality of driven gears 623 are evenly arranged in a circumferential array on the inner side of the driving gear ring 622 at equal intervals; the driven gears 623 are meshed and connected to the driving gear ring 622 and rotatably connected to the fixed annular plate 621, and each driven gear 623 is fixedly connected to the inner folded arc plate 624; when the inner folded arc plate 624 is in a retracted state, the arcuate edges of the inner folded arc plate 624 are on the same circumference; the housing of the inner folding drive cylinder 627 is hinged to the transverse rod 625, and the output end of the inner folding drive cylinder 627 is hinged to the driving gear ring 622;

[0076] In the present invention, when the welding wire reel 7 moves to the set position in the heat shrinking furnace 15, the lifting cylinder 612 controls the top rod 613 to move vertically upward under the limiting action of the cross bar 611 through the connecting plate 615, so that the arc-shaped supporting plate 614 lifts the welding wire reel 7 from the conveying roller, and the hot air in the heat shrinking furnace 15 blows evenly to the welding wire reel 7; then the transverse cylinder 628 controls the fixed annular plate 621 and the active gear ring 622 to move horizontally to the welding wire reel 7 under the limiting action of the transverse rod 625 through the connecting frame 626, so that the inner folded arc plate 624 is sleeved on the sleeve The cuff is folded to the outside of the opening and distributed radially along the cuff; then the active gear ring 622 is controlled to rotate by the inward folding driving cylinder 627 so that all the driven gears 623 rotate synchronously, and then all the inward folding arc plates 624 are unfolded synchronously, and the inward folding arc plates 624 rotate to fold the cuff to the axial direction of the welding wire reel 7 to the side of the welding wire reel 7, and the cuff hot air nozzle 63 continues to blow hot air to the folded cuff, so that the cuff shrinks evenly to completely cover the welding wire reel 7, thereby reducing the possibility of the phenomenon that the local cuff shrinks unevenly and the welding wire reel 7 cannot be covered.

[0077] Embodiment 3: In some embodiments, Figure 8 , Fig.10 and Fig.11 As shown, as a preferred embodiment of the present invention, the film-supporting heat-sealing cutting mechanism 4 includes a slide bar 41, an upper vertical moving plate 42, a lower vertical moving plate 43, a film-supporting heat-sealing cutting knife assembly 44, a film-supporting heat-sealing knife seat assembly 45 and a synchronous driving assembly 46, and a fixed plate is fixedly installed on the top of the bracket 14; two slide bars 41 are symmetrically distributed on the front and rear sides of the frame 10, the upper end of the slide bar 41 is fixedly connected to the fixed plate, and the lower end of the slide bar 41 is fixedly connected to the lower end of the frame 10; the upper vertical moving plate 42 and the lower vertical moving plate 43 are arranged on the upper and lower sides of the frame 10 and are limitedly slidably connected to the slide bar 41;

[0078] The upper vertical moving plate 42 is provided with a film-supporting heat-sealing cutter assembly 44, and the lower vertical moving plate 43 is provided with a film-supporting heat-sealing cutter seat assembly 45; the film-supporting heat-sealing cutter assembly 44 and the film-supporting heat-sealing cutter seat assembly 45 cooperate to heat-seal and cut the heat shrink film;

[0079] The synchronous drive assembly 46 is disposed at the lower end of the frame 10, and the synchronous drive assembly 46 is used to drive the upper vertical moving plate 42 and the lower vertical moving plate 43 to move synchronously toward each other;

[0080] The film-supporting heat-sealing cutter assembly 44 comprises a cutter 441, a heat-sealing plate 442, a first fixed block 443, a first inclined slot 444, a first inclined block 445, a first tension spring 446 and a first connecting block 447. The cutter 441 is connected to the upper vertical moving plate 42 through a spring guide rod floating structure. Two heat-sealing plates 442 are symmetrically distributed on the left and right sides of the cutter 441. The front and rear ends of the cutter 441 are both fixedly mounted with the first fixed blocks 443. The left and right sides of the first fixed block 443 are symmetrically provided with first inclined slots 444. The front and rear ends of the heat-sealing plate 442 are respectively fixedly mounted with first inclined blocks 445 which are limitedly slidably connected with the first inclined slots 444.

[0081] The first connecting block 447 is fixedly connected to the first fixing block 443, and the left and right ends of the first connecting block 447 are respectively fixedly installed with first tension springs 446, and one end of the first tension spring 446 away from the first connecting block 447 is respectively fixedly connected to the first inclined block 445;

[0082] When the heat sealing plate 442 is subjected to an upward force, under the action of the first inclined groove 444 and the first inclined block 445, the upper vertical moving plate 42 drives the cutter 441 to continue to move downward, while the heat sealing plates 442 on both sides move outward and gradually open.

[0083] The film-supporting heat-sealing knife seat assembly 45 comprises a knife seat 451, a pad 452, a second fixed block 453, a second inclined slot 454, a second inclined block 455, a second tension spring 456 and a second connecting block 457. The knife seat 451 is connected to the lower vertical moving plate 43 through a spring guide rod floating structure. The two pads 452 are symmetrically distributed on the left and right sides of the knife seat 451. The front and rear ends of the knife seat 451 are fixedly installed with the second fixed blocks 453. The left and right sides of the second fixed block 453 are symmetrically provided with second inclined slots 454. The front and rear ends of the pad 452 are respectively fixedly installed with second inclined blocks 455 which are limitedly slidably connected with the second inclined slots 454.

[0084] The second connecting block 457 is fixedly connected to the second fixing block 453, and the left and right ends of the second connecting block 457 are respectively fixedly installed with second tension springs 456, and one end of the second tension spring 456 away from the second connecting block 457 is respectively fixedly connected to the second inclined block 455;

[0085] When the pad 452 is subjected to an upward force, under the action of the second inclined groove 454 and the second inclined block 455 , the lower vertical moving plate 43 drives the knife holder 451 to continue to move upward, while the pads 452 on both sides move outward and gradually open.

[0086] The knife seat 451 is provided with a groove along the length direction of the knife seat 451 to match the cutting knife 441;

[0087] The spring guide rod floating structure adopts mature technology in this field and will not be described in detail here.

[0088] The synchronous drive assembly 46 includes a support plate 461, a limit plate 462, a first rack 463, a first connecting rod 464, a second rack 465, a second connecting rod 466, a synchronous gear 467, a limit wheel 468 and a heat-sealing film-breaking cylinder 469. The support plate 461 is fixedly mounted on the lower end of the frame 10, and the limit plate 462 is symmetrically fixedly mounted on the front and rear ends of the support plate 461; the middle part of the inner side of the limit plate 462 is rotatably mounted with a synchronous gear 467 through a bearing, and the inner sides of the limit plate 462 are symmetrically rotatably mounted with a plurality of limit wheels 468; the two sides of the synchronous gear 467 are symmetrically provided with The first rack 463 and the second rack 465; the side surfaces of the first rack 463 and the second rack 465 are slidingly connected to the inner side of the limit plate 462, the ends close to each other are meshed with the synchronous gear 467, and the ends away from each other are rollingly connected with the limit wheel 468; the two ends of the first connecting rod 464 are respectively fixedly connected to the first rack 463 and the upper vertical moving plate 42, and the two ends of the second connecting rod 466 are respectively fixedly connected to the second rack 465 and the lower vertical moving plate 43; the heat sealing film cutting cylinder 469 is fixedly installed on the support plate 461, and the output end of the heat sealing film cutting cylinder 469 is fixedly connected to the lower vertical moving plate 43;

[0089] In the present invention, the film coating conveyor line 12 drives the welding wire reel 7 to push the heat shrink film to move to the right, so that the heat shrink film gradually wraps the welding wire reel 7. When the welding wire reel 7 passes between the cutter 441 and the knife seat 451, the heat sealing film cutting cylinder 469 drives the lower vertical moving plate 43 to move vertically upward. The lower vertical moving plate 43 drives the second rack 465 to move through the first connecting rod 464, and the first rack 463 moves synchronously under the action of the synchronous gear 467. The first rack 463 drives the upper vertical moving plate 42 to move vertically downward synchronously through the first connecting rod 464, so that the upper vertical moving plate 42 and the lower vertical moving plate 43 gradually approach each other.

[0090] The heat sealing plate 442 and the pad 452 first contact the heat shrink film to continue the heat sealing operation. At this time, the upper vertical moving plate 42 and the lower vertical moving plate 43 continue to approach, so that the cutter 441 and the knife holder 451 approach each other, and the heat sealing plate 442 and the pad 452 are opened synchronously, so that after the heat shrink film is heat-sealed, the heat shrink film at the part to be cut is opened and tightened, and then the cutter 441 and the knife holder 451 cooperate to complete the cutting operation of the heat shrink film, which not only makes the edge of the heat shrink film cut smooth, but also reduces the wear of the cutter 441, effectively avoids the sticking phenomenon, and improves the yield rate.

[0091] The synchronous film suction and straightening mechanism 5 includes a synchronous plate 51, a connecting seat 52 and a vacuum suction block 53. The synchronous plate 51 is fixedly connected to the lower vertical moving plate 43; a plurality of connecting seats 52 are evenly and evenly fixedly installed on the synchronous plate 51 along the length direction of the frame 10; a vacuum suction block 53 is fixedly installed on the upper end of the connecting seat 52; the height of the vacuum suction block 53 gradually increases from left to right, and the upper end of the vacuum suction block 53 is inclined so that the upper end of the vacuum suction block 53 can fit the lower side of the lifted heat shrink film; all the vacuum suction blocks 53 are connected to the same vacuum generating device, such as a vacuum generator;

[0092] In the present invention, when the heat shrink film is heat-sealed and cut, the heat shrink films on both sides are tightened and centered, and the heat shrink film on the lower side is lifted and tilted; and the synchronous plate 51 and the lower vertical moving plate 43 move upward synchronously, so that the upper end of the vacuum suction block 53 is closely attached to the lower end of the lower heat shrink film to absorb and fix the heat shrink film;

[0093] After the heat seal cutting is completed, the lower vertical moving plate 43 moves down and resets, and the synchronous plate 51 moves down synchronously with the lower vertical moving plate 43, and the vacuum suction block 53 absorbs the heat shrink film on the lower side and drives the heat shrink film to move downward, so that the heat shrink film finally falls smoothly on the conveying roller of the coating conveyor line 12, and the vacuum suction block 53 releases the heat shrink film, thereby preventing the heat shrink film from shaking, bouncing, etc., so that the position of the heat shrink film is always stably located in the middle of the coating conveyor line 12, and after the welding wire reel 7 is placed on the heat shrink film and is coated and formed by it, the two cuffs formed by the shrink film on the outside of the welding wire reel 7 are the same length, so that when the shrink film width is small, the welding wire reel 7 can still be evenly coated with the heat shrink film after passing through the heat shrink furnace 15.

[0094] Embodiment 4: In some embodiments, Figure 3 , Figure 5 and Figure 6 As shown, as a preferred embodiment of the present invention, the 90-degree flip mechanism 2 includes a support frame 21, a flip servo motor 22, a rotating shaft 23, a flip frame 24 and a positioning baffle 25. The top of the support frame 21 is rotatably mounted with the rotating shaft 23 through a bearing, the flip servo motor 22 is fixedly mounted on the top of the support frame 21, and the output end of the flip servo motor 22 is fixedly connected to the rotating shaft 23; two flip frames 24 are symmetrically mounted at both ends of the rotating shaft 23; the top of the support frame 21 is also fixedly mounted with a positioning baffle 25 for blocking and positioning the welding wire reel 7;

[0095] The flip frame 24 is configured as a field-shaped frame structure, the center of which is fixedly connected to the rotating shaft 23; a limit lever is fixedly installed in the middle of each side of the field-shaped frame, and the limit lever and the side of the field-shaped frame form an L-shaped support structure for supporting and flipping the welding wire reel 7;

[0096] In the present invention, the welding wire reel 7 in a horizontal state is moved from the discharge end of the feeding conveyor line 11 to the L-shaped support structure of the flip frame 24 and is blocked and limited by the positioning baffle 25, and then the flip servo motor 22 controls the rotating shaft 23 to rotate ninety degrees, and then drives the welding wire reel 7 to rotate ninety degrees through the L-shaped support structure, so that the welding wire reel 7 is changed from a horizontal position to a vertical position, and the welding wire reel 7 is stably mounted on the two flip frames 24, waiting to be grabbed by the stable plate moving mechanism 3;

[0097] The discharging end of the coating conveyor line 12 is symmetrically provided with a limiting side plate 17, which is located above the conveying roller of the coating conveyor line 12 and is fixedly connected to the frame 10. The distance between the two limiting side plates 17 is slightly larger than the thickness of the welding wire reel 7; the left end of the limiting side plate 17 is provided with a material guiding slope;

[0098] The discharging end of the film coating conveyor line 12 is also provided with a discharging inclined plate 18, which is located at the lower side of the limiting side plate 17 and is fixedly connected to the frame 10, and the left and right ends of the discharging inclined plate 18 are respectively connected to the film coating conveyor line 12 and the turning frame 24 of the 90-degree turning mechanism 2;

[0099] In the present invention, the film-wrapping conveyor line 12 conveys the heat-shrink-wrapped welding wire reel 7 to the right, and the welding wire reel 7 enters between the limiting side plates 17 and falls along the discharge inclined plate 18 onto the turning frame 24 of the ninety-degree turning mechanism 2 and is blocked by the positioning baffle 25. At this time, the welding wire reel 7 is placed vertically on the turning frame 24, and then the turning servo motor 22 drives the turning frame 24 to rotate ninety degrees through the rotating shaft 23, so that the welding wire reel 7 in the vertical state is transformed into a flat state and falls on the unloading conveyor line 13, and the unloading conveyor line 13 conveys the welding wire reel 7 in the flat state to the next process;

[0100] The two sets of ninety-degree flipping mechanisms 2 arranged at the feeding end and the discharging end of the coating conveyor line 12 cooperate to realize the automatic flipping operation of the welding wire reel 7, and freely switch the flat and vertical states of the welding wire reel 7, which can not only meet the posture requirements of the welding wire reel 7 in different packaging processes, but also make the welding wire reel 7 more stable when the parts flow in different packaging processes, and the flipping speed is fast and the flipping effect is stable, which effectively improves the packaging efficiency of the welding wire reel 7 and realizes the automation and batch production of the packaging process.

[0101] Embodiment 5: In some embodiments, Figure 8 and Fig. 9As shown, as a preferred embodiment of the present invention, the stable disk moving mechanism 3 includes a transverse moving component 31, a transverse moving frame 32, a vertical moving component 33, a mounting frame 34 and a stable disk taking component 35. The transverse moving component 31 is arranged on the top of the bracket 14, and the moving end of the transverse moving component 31 is fixedly installed with the transverse moving frame 32, and the transverse moving frame 32 is provided with a vertical moving component 33, and the moving end of the vertical moving component 33 is fixedly installed with a mounting frame 34; the mounting frame 34 is provided with a stable disk taking component 35 for taking and placing the welding wire reel 7; the vertical moving component 33 adopts a cylinder slide rod structure, and the vertical moving component 33 is a mature technology in this field, which will not be described in detail here;

[0102] The traverse assembly 31 includes a traverse servo motor 311, a screw rod 312 and a linear guide assembly 313. The traverse servo motor 311 is fixedly mounted on the top of the bracket 14. The output end of the traverse servo motor 311 is fixedly connected to one end of the screw rod 312. The other end of the screw rod 312 is rotatably connected to the bracket 14 through a connecting piece. The slide rail of the linear guide assembly 313 is fixedly connected to the top of the bracket 14. The slider of the linear guide assembly 313 is fixedly connected to the traverse frame 32. The traverse frame 32 is threadedly connected to the screw rod 312 through a threaded sleeve.

[0103] The stable tray assembly 35 includes a material taking cylinder 351, a guide rod 352, a fixed pressure block 353, a positioning plug rod 354 and a positioning plate 355. The material taking cylinder 351 is fixedly installed on the upper end of the mounting frame 34, and the output end of the material taking cylinder 351 passes through the mounting frame 34 and is fixedly connected to the fixed pressure block 353, the lower end of the guide rod 352 is fixedly connected to the fixed pressure block 353, and the upper end of the guide rod 352 is limitedly slidably connected to the mounting frame 34; the lower end of the fixed pressure block 353 is set to an arc shape that fits the welding wire reel 7, and the lower end of the fixed pressure block 353 is provided with a rubber cushion layer; the lower end of the mounting frame 34 is fixedly installed with a positioning plug rod 354 that is plugged into the welding wire reel 7 through a connecting piece; one end of the positioning plug rod 354 is fixedly installed with a positioning plate 355 for positioning the welding wire reel 7, and the other end of the positioning plug rod 354 is provided with a material guiding slope.

[0104] In the present invention, the lateral movement servo motor 311 drives the lead screw 312 to rotate to control the lateral movement frame 32 to move forward and backward in the horizontal direction under the limiting action of the linear slide rail assembly 313, and the vertical movement of the mounting frame 34 can be controlled by the vertical movement assembly 33; when moving the wire reel 7, the positioning rod 354 is first inserted into the inner side of the wire reel 7, and the side of the wire reel 7 is fitted with the positioning plate 355, and then the fixed pressure block 353 is controlled by the material taking cylinder 351 to move vertically downward under the limiting action of the guide rod 352, so that the fixed pressure block 353 is against the side of the wire reel 7, thereby achieving the limiting action of the wire reel 7 through the cooperation of the fixed pressure block 353, the positioning rod 354 and the positioning plate 355, thereby avoiding the position of the wire reel 7 from being offset during the movement, thereby ensuring the accurate transfer of the wire reel 7.

[0105] Embodiment 6: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, a packaging method of a reel uniform heat shrink packaging device comprises the following steps:

[0106] Step 1: The feeding conveyor line 11 conveys the welding wire reel 7 wrapped with anti-rust paper to the direction of the coating conveyor line 12. When the welding wire reel 7 in a horizontal state moves from the discharge end of the feeding conveyor line 11 to the L-shaped support structure of the turning frame 24 and is blocked and limited by the positioning baffle 25, the turning servo motor 22 controls the rotating shaft 23 to rotate ninety degrees, so that the welding wire reel 7 changes from a horizontal position to a vertical position;

[0107] Step 2: The lateral movement component 31 and the vertical movement component 33 cooperate to control the lateral and vertical movement of the mounting frame 34, insert the positioning rod 354 into the inner side of the wire reel 7, and the side of the wire reel 7 is fitted with the positioning plate 355, and then the fixed pressure block 353 is controlled by the material taking cylinder 351 to move vertically downward under the limiting action of the guide rod 352, so that the fixed pressure block 353 is against the side of the wire reel 7, and the positioning of the wire reel 7 is limited by the fixed pressure block 353, the positioning rod 354 and the positioning plate 355, and finally the wire reel 7 is placed vertically above the heat shrink film on the film coating conveyor line 12;

[0108] Step 3: The film wrapping conveyor line 12 drives the welding wire reel 7 to push the heat shrink film to move to the right, so that the heat shrink film gradually wraps the welding wire reel 7. When the welding wire reel 7 passes between the cutter 441 and the knife seat 451, the upper vertical moving plate 42 is controlled to move vertically downward and the lower vertical moving plate 43 is controlled to move vertically upward by the synchronous drive component 46, so that the upper vertical moving plate 42 and the lower vertical moving plate 43 gradually approach each other;

[0109] Step 4: After the heat sealing plate 442 and the backing plate 452 come into contact, the heat shrink film is heat-sealed. At this time, the upper vertical moving plate 42 and the lower vertical moving plate 43 continue to approach each other, so that the cutter 441 and the knife holder 451 approach each other, and the heat sealing plate 442 and the backing plate 452 are both opened, so that the heat shrink film to be cut after heat sealing is opened and tightened, and then the cutter 441 and the knife holder 451 cooperate to complete the cutting operation of the heat shrink film, so that the heat shrink film completely wraps the welding wire reel 7 and forms a cuff structure;

[0110] Step 5: The film coating conveyor line 12 drives the welding wire reel 7 into the heat shrinking furnace 15, and the heat shrinking film on the outside of the welding wire reel 7 is heated by the heat shrinking furnace 15; when the welding wire reel 7 moves to the set position, the welding wire reel 7 is lifted by the lifting assembly 61, and the hot air in the heat shrinking furnace 15 is evenly blown to the welding wire reel 7;

[0111] Step 6: The lateral cylinder 628 controls the fixed annular plate 621 and the active gear ring 622 to horizontally move toward the welding wire reel 7 under the limiting action of the lateral rod 625 through the connecting frame 626, so that the inner folded arc plate 624 is sleeved on the outside of the cuff and distributed along the radial direction of the cuff; then the inner folding driving cylinder 627 controls the active gear ring 622 to rotate so that all the driven gears 623 rotate synchronously, and then all the inner folded arc plates 624 are synchronously unfolded, and the inner folded arc plates 624 rotate to fold the cuff to the side of the welding wire reel 7 in the axial direction of the welding wire reel 7, and the cuff hot air nozzle 63 continues to blow hot air to the folded cuff, so that the cuff shrinks evenly and completely covers the welding wire reel 7; the lifting assembly 61 is reset to make the packaged welding wire reel 7 fall back on the film conveying line 12;

[0112] Step seven: the wrapping conveyor line 12 conveys the shrink-wrapped welding wire reel 7 to the right. After the welding wire reel 7 enters between the limiting side plates 17, it falls along the discharge inclined plate 18 onto the flip frame 24 of the ninety-degree flip mechanism 2 and is blocked by the positioning baffle 25. At this time, the welding wire reel 7 is placed vertically on the flip frame 24. Then, the flip servo motor 22 drives the flip frame 24 to rotate ninety degrees through the rotating shaft 23, so that the welding wire reel 7 in the vertical state is transformed into a flat state and falls on the unloading conveyor line 13. The unloading conveyor line 13 conveys the welding wire reel 7 in the flat state to the next process.

[0113] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reel uniform heat shrink packaging device, comprising a frame (10), a loading conveyor line (11), a film wrapping conveyor line (12), a unloading conveyor line (13) and a bracket (14), characterized in that: The film coating conveyor line (12) is installed on the frame (10), the loading conveyor line (11) is located on the feeding end side of the film coating conveyor line (12), and the unloading conveyor line (13) is located on the discharging end side of the film coating conveyor line (12); A 90-degree flip mechanism (2) for switching the welding wire reel (7) between a vertical position and a horizontal position is provided between the discharge end of the loading conveyor line (11) and the feed end of the coating conveyor line (12), and between the discharge end of the coating conveyor line (12) and the feed end of the unloading conveyor line (13); The 90-degree turning mechanism (2) comprises a support frame (21), a turning servo motor (22), a rotating shaft (23), a turning frame (24) and a positioning baffle (25); the top of the support frame (21) is rotatably mounted with the rotating shaft (23) via a bearing; the turning servo motor (22) is fixedly mounted on the top of the support frame (21); the output end of the turning servo motor (22) is fixedly connected to the rotating shaft (23); two turning frames (24) are symmetrically mounted at both ends of the rotating shaft (23); and a positioning baffle (25) for blocking and positioning the welding wire reel (7) is also fixedly mounted on the top of the support frame (21); A bracket (14) and a heat shrink furnace (15) are fixedly mounted on the top of the frame (10), and the heat shrink furnace (15) is located on the right side of the bracket (14); A film guide roller (16) for guiding the discharge of the heat shrink film is rotatably mounted on the top of the bracket (14) and the left end of the frame (10); The upper end of the bracket (14) is provided with a stable disc moving mechanism (3) for moving the welding wire disc (7) from the 90-degree turning mechanism (2) at the discharge end of the feeding conveyor line (11) to the feed end of the coating conveyor line (12); The lower end of the support (14) is provided with a film support heat sealing and cutting mechanism (4) for heat sealing and cutting the film after the welding wire reel (7) is wrapped with the heat shrink film; the film support heat sealing and cutting mechanism (4) is located between the rightmost film guide roller (16) and the heat shrink furnace (15); The lower end of the frame (10) is provided with a synchronous film suction and straightening mechanism (5) for simultaneously adsorbing and fixing the heat shrinkable film on the lower side when the heat shrinkable film is heat-sealed and cut; A cuff inward folding auxiliary heat shrinking mechanism (6) is arranged in the heating chamber of the heat shrinking furnace (15), and the cuff inward folding auxiliary heat shrinking mechanism (6) comprises a lifting component (61), an inward folding component (62) and a cuff hot air nozzle (63). The lifting component (61) is arranged on the lower side of the frame (10) and is used to lift the welding wire reel (7) from the film coating conveyor line (12) to achieve uniform heating of the heat shrink film; the front and rear inner walls of the heat shrinking furnace (15) are symmetrically provided with inward folding components (62) for bending and fixing the cuff structure inward; the inward folding component (62) is installed with a cuff hot air nozzle (63) facing the heat shrink film cuff, and the cuff hot air nozzle (63) is used to provide the cuff with higher and more concentrated hot air.

2. The reel uniform heat shrink packaging equipment according to claim 1, characterized in that: The inner folding assembly (62) comprises a fixed annular plate (621), a driving gear ring (622), a driven gear (623), an inner folding arc-shaped plate (624), a transverse shifting rod (625), a connecting frame (626), an inner folding driving cylinder (627) and a transverse shifting cylinder (628); the transverse shifting cylinder (628) is fixedly connected to the outer wall of the heat shrinking furnace (15); the output end of the transverse shifting cylinder (628) passes through the side wall of the heat shrinking furnace (15) and is fixedly connected to the connecting frame (626); a plurality of transverse shifting rods (625) are fixedly mounted on the end of the connecting frame (626); one end of the transverse shifting rod (625) is limitedly slidably connected to the side wall of the heat shrinking furnace (15); The other end of the rod (625) is fixedly connected to the fixed annular plate (621); the driving gear ring (622) is rotatably connected to the fixed annular plate (621) via a bearing; a plurality of driven gears (623) are evenly arranged in a circular array at equal intervals on the inner side of the driving gear ring (622); the driven gears (623) are meshedly connected to the driving gear ring (622) and rotatably connected to the fixed annular plate (621), and each driven gear (623) is fixedly connected to the inwardly folded arc plate (624); the housing of the inwardly folded driving cylinder (627) is hinged to the transverse rod (625), and the output end of the inwardly folded driving cylinder (627) is hinged to the driving gear ring (622).

3. The reel uniform heat shrink packaging equipment according to claim 2, characterized in that: The film-supporting heat-sealing cutting mechanism (4) comprises a slide bar (41), an upper vertical moving plate (42), a lower vertical moving plate (43), a film-supporting heat-sealing cutting knife assembly (44), a film-supporting heat-sealing knife seat assembly (45) and a synchronous driving assembly (46); a fixing plate is fixedly installed on the top of the bracket (14); two slide bars (41) are symmetrically distributed on the front and rear sides of the frame (10); the upper end of the slide bar (41) is fixedly connected to the fixing plate, and the lower end of the slide bar (41) is fixedly connected to the lower end of the frame (10); the upper vertical moving plate (42) and the lower vertical moving plate (43) are arranged on the upper and lower sides of the frame (10) and are limitedly slidably connected to the slide bar (41); A film-supporting heat-sealing cutter assembly (44) is mounted on the upper vertical moving plate (42), and a film-supporting heat-sealing knife seat assembly (45) is mounted on the lower vertical moving plate (43); the film-supporting heat-sealing cutter assembly (44) and the film-supporting heat-sealing knife seat assembly (45) cooperate to heat-seal and cut the heat shrink film; The synchronous drive assembly (46) is arranged at the lower end of the frame (10), and is used to drive the upper vertical moving plate (42) and the lower vertical moving plate (43) to move synchronously towards each other.

4. The reel uniform heat shrink packaging equipment according to claim 3, characterized in that: The film-supporting heat-sealing cutter assembly (44) comprises a cutter (441), a heat-sealing plate (442), a first fixed block (443), a first inclined groove (444), a first inclined block (445), a first tension spring (446) and a first connecting block (447); the cutter (441) is connected to the upper vertical moving plate (42) via a spring guide rod floating structure; two heat-sealing plates (442) are symmetrically distributed on the left and right sides of the cutter (441); the first fixed blocks (443) are fixedly installed at both the front and rear ends of the cutter (441); the first inclined grooves (444) are symmetrically opened on the left and right sides of the first fixed block (443); the first inclined blocks (445) that are limitedly slidably connected to the first inclined grooves (444) are fixedly installed at both the front and rear ends of the heat-sealing plate (442); The first connecting block (447) is fixedly connected to the first fixing block (443), the left and right ends of the first connecting block (447) are respectively fixedly mounted with first tension springs (446), and one end of the first tension spring (446) away from the first connecting block (447) is respectively fixedly connected to the first inclined block (445).

5. The reel uniform heat shrink packaging equipment according to claim 4, characterized in that: The film-supporting heat-sealing knife seat assembly (45) comprises a knife seat (451), a pad (452), a second fixed block (453), a second inclined groove (454), a second inclined block (455), a second tension spring (456) and a second connecting block (457); the knife seat (451) is connected to the lower vertical moving plate (43) via a spring guide rod floating structure; the two pads (452) are symmetrically distributed on the left and right sides of the knife seat (451); the second fixed blocks (453) are fixedly installed at both the front and rear ends of the knife seat (451); the second inclined grooves (454) are symmetrically opened on the left and right sides of the second fixed block (453); the second inclined blocks (455) which are limitedly slidably connected to the second inclined grooves (454) are fixedly installed at both the front and rear ends of the pad (452); The second connecting block (457) is fixedly connected to the second fixing block (453); second tension springs (456) are fixedly installed at the left and right ends of the second connecting block (457), and one end of the second tension spring (456) away from the second connecting block (457) is fixedly connected to the second inclined block (455); A groove for matching the cutting knife (441) is provided on the knife seat (451) along the length direction of the knife seat (451).

6. The reel uniform heat shrink packaging equipment according to claim 5, characterized in that: The synchronous drive assembly (46) comprises a support plate (461), a limit plate (462), a first rack (463), a first connecting rod (464), a second rack (465), a second connecting rod (466), a synchronous gear (467), a limit wheel (468) and a heat-sealing film-breaking cylinder (469). The support plate (461) is fixedly mounted at the lower end of the frame (10), and the limit plate (462) is symmetrically fixedly mounted at the front and rear ends of the support plate (461); a synchronous gear (467) is rotatably mounted on the middle part of the inner side of the limit plate (462) via a bearing, and a plurality of limit wheels (468) are symmetrically rotatably mounted at the inner ends of the limit plate (462); and the two sides of the synchronous gear (467) are symmetrically arranged. A first rack (463) and a second rack (465) are arranged; the side surfaces of the first rack (463) and the second rack (465) are slidably connected to the inner side of the limit plate (462), the ends close to each other are meshedly connected to the synchronous gear (467), and the ends away from each other are rollingly connected to the limit wheel (468); the two ends of the first connecting rod (464) are respectively fixedly connected to the first rack (463) and the upper vertical moving plate (42), and the two ends of the second connecting rod (466) are respectively fixedly connected to the second rack (465) and the lower vertical moving plate (43); the heat sealing film cutting cylinder (469) is fixedly installed on the support plate (461), and the output end of the heat sealing film cutting cylinder (469) is fixedly connected to the lower vertical moving plate (43).

7. The reel uniform heat shrink packaging equipment according to claim 6, characterized in that: The turning frame (24) is configured as a field-shaped frame structure, the center of which is fixedly connected to the rotating shaft (23); a limit lever is fixedly installed in the middle of each side of the field-shaped frame, and the limit lever and the side of the field-shaped frame form an L-shaped support structure for supporting and turning the welding wire reel (7).

8. The reel uniform heat shrink packaging equipment according to claim 7, characterized in that: The stable disk moving mechanism (3) comprises a transverse moving assembly (31), a transverse moving frame (32), a vertical moving assembly (33), a mounting frame (34) and a stable disk taking assembly (35); the transverse moving assembly (31) is arranged on the top of the bracket (14); the transverse moving frame (32) is fixedly mounted on the movable end of the transverse moving assembly (31); the vertical moving assembly (33) is arranged on the transverse moving frame (32); the mounting frame (34) is fixedly mounted on the movable end of the vertical moving assembly (33); and the stable disk taking assembly (35) for taking and placing the welding wire reel (7) is arranged on the mounting frame (34).

9. The reel uniform heat shrink packaging equipment according to claim 8, characterized in that: The stable tray fetching assembly (35) comprises a fetching cylinder (351), a guide rod (352), a fixed pressure block (353), a positioning rod (354) and a positioning plate (355). The fetching cylinder (351) is fixedly mounted on the upper end of the mounting frame (34). The output end of the fetching cylinder (351) passes through the mounting frame (34) and is fixedly connected to the fixed pressure block (353). The lower end of the guide rod (352) is fixedly connected to the fixed pressure block (353). The upper end of the guide rod (352) is fixedly connected to the fixed pressure block (353). The mounting frame (34) is connected by limited sliding; the lower end of the fixed pressure block (353) is arranged in an arc shape that fits the welding wire reel (7), and the lower end of the fixed pressure block (353) is provided with a rubber cushion layer; the lower end of the mounting frame (34) is fixedly mounted with a positioning rod (354) plugged into the welding wire reel (7) through a connecting piece; a positioning plate (355) for positioning the welding wire reel (7) is fixedly mounted on one end of the positioning rod (354), and a material guiding inclined surface is provided on the other end of the positioning rod (354).

10. A packaging method of a reel uniform heat shrink packaging device, using the reel uniform heat shrink packaging device according to claim 9, characterized in that: The following steps are involved: Step 1: The feeding conveyor line (11) conveys the welding wire reel (7) wrapped with anti-rust paper in the direction of the coating conveyor line (12). When the welding wire reel (7) in a horizontal position moves from the discharge end of the feeding conveyor line (11) to the L-shaped support structure of the turning frame (24) and is blocked by the positioning baffle (25), the turning servo motor (22) controls the rotating shaft (23) to rotate ninety degrees, so that the welding wire reel (7) is transformed from a horizontal position to a vertical position; Step 2: The lateral movement component (31) and the vertical movement component (33) cooperate to control the lateral movement and vertical movement of the mounting frame (34), insert the positioning rod (354) into the inner side of the welding wire reel (7), and the side of the welding wire reel (7) is fitted with the positioning plate (355), and then the fixed pressure block (353) is controlled by the material taking cylinder (351) to move vertically downward under the limiting action of the guide rod (352), so that the fixed pressure block (353) is against the side of the welding wire reel (7), and the positioning of the welding wire reel (7) is limited by the fixed pressure block (353), the positioning rod (354) and the positioning plate (355), and finally the welding wire reel (7) is placed vertically above the heat shrink film on the film coating conveyor line (12); Step 3: The film wrapping conveyor line (12) drives the welding wire reel (7) to push the heat shrink film to move to the right, so that the heat shrink film gradually wraps the welding wire reel (7). After the welding wire reel (7) passes between the cutting knife (441) and the knife seat (451), the upper vertical moving plate (42) is controlled to move vertically downward and the lower vertical moving plate (43) is controlled to move vertically upward by the synchronous driving component (46), so that the upper vertical moving plate (42) and the lower vertical moving plate (43) gradually approach each other; Step 4: After the heat sealing plate (442) and the backing plate (452) come into contact, the heat shrink film is heat-sealed. At this time, the upper vertical moving plate (42) and the lower vertical moving plate (43) continue to approach each other, so that the cutter (441) and the knife holder (451) approach each other, and the heat sealing plate (442) and the backing plate (452) are both opened, so that the heat shrink film to be cut after the heat sealing is opened and tightened, and then the cutter (441) and the knife holder (451) cooperate to complete the cutting operation of the heat shrink film, so that the heat shrink film completely wraps the welding wire reel (7) and forms a cuff structure; Step 5: The film coating conveyor line (12) drives the welding wire reel (7) into the heat shrinking furnace (15), and the heat shrinking furnace (15) heats the heat shrinking film on the outside of the welding wire reel (7); when the welding wire reel (7) moves to the set position, the welding wire reel (7) is lifted up by the lifting assembly (61), and the hot air in the heat shrinking furnace (15) is evenly blown toward the welding wire reel (7); Step 6: The lateral cylinder (628) controls the fixed annular plate (621) and the active gear ring (622) to horizontally move toward the welding wire reel (7) under the limiting action of the lateral rod (625) through the connecting frame (626), so that the inner folding arc plate (624) is sleeved on the outside of the cuff and distributed along the radial direction of the cuff; then the inner folding driving cylinder (627) controls the active gear ring (622) to rotate so that all the driven gears (623) rotate synchronously, thereby making all the inner folding arc plates (624) unfold synchronously, and the inner folding arc plates (624) rotate to fold the cuff in the axial direction of the welding wire reel (7) to the side of the welding wire reel (7), and the cuff hot air nozzle (63) continues to blow hot air to the folded cuff, so that the cuff shrinks evenly and completely covers the welding wire reel (7); the lifting assembly (61) is reset to make the packaged welding wire reel (7) fall back on the film packaging conveyor line (12); Step 7: The wrapping conveyor line (12) conveys the shrink-wrapped welding wire reel (7) to the right. After the welding wire reel (7) enters between the limiting side plates (17), it falls along the discharge inclined plate (18) onto the turning frame (24) of the ninety-degree turning mechanism (2) and is blocked by the positioning baffle (25). At this time, the welding wire reel (7) is placed vertically on the turning frame (24). Subsequently, the turning servo motor (22) drives the turning frame (24) to rotate ninety degrees through the rotating shaft (23), so that the welding wire reel (7) in the vertical state is transformed into a horizontal state and falls on the unloading conveyor line (13). The unloading conveyor line (13) conveys the horizontal welding wire reel (7) to the next process.

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