Three-station coil machine with automatic film winding and unloading

Abstract

This invention discloses a three-station coiling machine for automatic wrapping and unloading of corrugated pipes, comprising a frame, a three-station turntable, three coiling mechanisms, an automatic wrapping mechanism, and an automatic unloading mechanism. The three-station turntable is rotatably mounted on the frame, with coiling, wrapping, and unloading stations sequentially arranged around its circumference. The three coiling mechanisms are fixedly mounted on the turntable and move sequentially to each station. The coiling mechanism at the coiling station rotates, causing the corrugated pipe to coil into a roll and clamping it. The automatic wrapping mechanism is mounted on the frame and located at the wrapping station; as the coiling mechanism rotates, it wraps the packaging film around the rolled corrugated pipe. The automatic unloading mechanism is mounted on the frame and located at the unloading station, unloading the wrapped corrugated pipe from the coiling mechanism. This three-station coiling machine enables synchronous and coordinated operation of the coiling, wrapping, and unloading stations, integrating automated control to improve production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the technical field of corrugated pipe production equipment, specifically a three-station coiling machine for automatic wrapping and unloading of corrugated pipes, mainly used for winding, wrapping, packaging and unloading operations in the production process of plastic corrugated pipes. Background Technology

[0002] Corrugated pipes, as a type of flexible pipe with a ring-shaped corrugated structure, are widely used in various fluid transportation and pipeline laying projects due to their good pressure resistance, corrosion resistance, and fatigue resistance.

[0003] Existing corrugated pipe coiling equipment is mostly single-station or dual-station, which has the following technical defects:

[0004] First, the workstation has a single function. The processes of coiling, wrapping, and unloading are independent of each other. It is necessary to manually or by adding automated equipment to transfer the corrugated pipe after coiling to the wrapping equipment, and then manually unload it. The process connection is cumbersome and the manual labor intensity is high.

[0005] Secondly, the degree of automation is low. Whether it is tension control during the coiling process, film tension adjustment during the wrapping process, or material transfer during the unloading process, all require manual intervention. This is not only inefficient, but also prone to problems such as irregular coiling, loose or overly tight wrapping, and material jamming due to human error.

[0006] Third, although the existing dual-station equipment can achieve parallel operation of some processes, it cannot simultaneously complete the three processes of coiling, wrapping, and unloading. The equipment has a high idle rate and poor production continuity.

[0007] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0008] To address the above-mentioned technical problems, this invention provides a three-station coiling machine for automatic wrapping and unloading of corrugated pipes. This machine enables simultaneous and coordinated operation of coiling, wrapping, and unloading, integrating automated control to reduce manual intervention, lower labor intensity, and improve production efficiency. Simultaneously, it optimizes tension control and positioning structures to adapt to different specifications of corrugated pipes, preventing damage during processing, ensuring coil regularity and wrapping firmness, and improving product quality and production safety.

[0009] To achieve the above objectives, the technical solution of the present invention is as follows:

[0010] A three-station coiling machine for automatic wrapping and unloading of corrugated pipes includes a frame, a three-station turntable, three coiling mechanisms, an automatic wrapping mechanism, and an automatic unloading mechanism.

[0011] The three-station turntable is rotatably mounted on the frame, and the outer circumference of the three-station turntable is provided with a coiling station, a wrapping station and a unloading station according to the process.

[0012] The three coiling mechanisms are respectively fixedly installed on the three-station turntable, and they rotate with the three-station turntable, sequentially switching to the coiling station, the wrapping station and the unloading station;

[0013] The coiling mechanism located at the coiling station rotates to drive the corrugated pipe to coil into a roll shape, and clamps the rolled corrugated pipe.

[0014] The automatic wrapping mechanism is installed on the frame and located at the wrapping station. When the coil mechanism rotates, it wraps the packaging film around the outside of the roll corrugated tube.

[0015] The automatic unloading mechanism is installed on the frame and located at the unloading station, and it unloads the rolled corrugated tube with the packaging film wrapped around it from the coil mechanism.

[0016] This three-station coiling machine for automatic wrapping and unloading of corrugated pipes uses a three-station turntable to drive three coiling mechanisms to circulate through each station in sequence, realizing the integrated operation of coiling, wrapping, and unloading on the same equipment. This solves the technical problems of process disconnection and high equipment idle rate in existing single-station or double-station equipment. The three coiling mechanisms rotate with the three-station turntable and switch to each station in sequence, respectively performing coiling, wrapping, and unloading actions.

[0017] The design is further optimized by setting the rotation axis of the three-station turntable horizontally. The horizontal axis layout of the three-station turntable allows the coiling mechanism to rotate and switch positions in a vertical plane, facilitating the stable posture of the corrugated pipe during coiling and wrapping. Simultaneously, gravity can be used to assist in unloading. The vertical turntable occupies less space, contributing to a more compact overall equipment layout.

[0018] The scheme is further optimized so that when the three-station turntable rotates to the corresponding position of the station and locks, the three coiling mechanisms located at the coiling station, the wrapping station and the unloading station simultaneously perform coiling, wrapping and unloading operations, and the operations of each station do not interfere with each other.

[0019] With three workstations operating simultaneously without interference, equipment utilization is greatly improved, production efficiency is significantly increased, and it is well adapted to high-speed extrusion production lines.

[0020] In a further optimized design, a pipe-laying mechanism is installed on the frame, located at the coiling station; the pipe-laying mechanism guides and arranges the corrugated pipes onto the coiling mechanism located at the coiling station.

[0021] The pipe laying mechanism includes a pipe cutting assembly. After the coiling mechanism completes the coiling, the pipe cutting assembly cuts the corrugated pipe, so that the three-station turntable can rotate to switch the rolled corrugated pipe to the wrapping station.

[0022] The tube laying mechanism ensures the uniform arrangement of the corrugated pipe during the coiling process, avoiding loose or irregular coiling; the tube cutting assembly realizes automatic cutting after the coiling is completed without manual intervention, meeting the requirement of automatically switching the turntable to the wrapping station.

[0023] In a further optimized design, a film-cutting mechanism is installed on the frame, located between the wrapping station and the unloading station; the film-cutting mechanism cuts the packaging film after the wrapping is completed.

[0024] It enables automatic film cutting after the wrapping process, eliminating the need for manual cutting, ensuring neat cuts and tight film adherence to the coil, thus improving packaging quality and automation level.

[0025] The scheme is further optimized so that the three-station turntable includes a turntable body, a revolution drive assembly, and a positioning and locking assembly;

[0026] The turntable body is rotatably mounted on the frame, and the three coiling mechanisms are distributed on the turntable body along the circumferential direction; the output end of the revolution drive component drives the turntable body to rotate, realizing the switching of the three coiling mechanisms between the coiling station, the wrapping station and the unloading station;

[0027] The positioning and locking assembly is installed on the frame and locks the turntable body in position when the three coil mechanisms correspond to the three workstations respectively.

[0028] The revolution and rotation power are separated, and each coil mechanism can rotate independently without interfering with each other; the positioning and locking components ensure the reliable positioning and stability of the turntable during operation.

[0029] The further optimized scheme includes a coil rotation power assembly, a coil power shaft, several coil gripping discs, multiple sets of baffle assemblies, a membrane clamping assembly, and a tube clamping assembly.

[0030] The coil rotation power assembly is mounted on the turntable body and is connected to the coil power shaft to drive the corresponding coil mechanism to rotate.

[0031] The coil power shaft is rotatably mounted on the three-station turntable via bearings, and the output end of the coil self-rotation power assembly is connected to the coil power shaft to drive the coil power shaft to rotate.

[0032] Several of the aforementioned coil grippers are circumferentially distributed and mounted on the coil drive shaft, and extend axially; the bellows is coiled on the outer surface of the coil grippers;

[0033] Multiple sets of the baffle assemblies are circumferentially distributed and installed on the coil drive shaft; each set of the baffle assembly includes a fixed baffle, a sliding baffle, a baffle connector and a radial telescopic guide structure.

[0034] The baffle connector extends along an axial direction parallel to the coil power shaft; the fixed baffle and the sliding baffle are respectively installed and connected to the baffle connector, the fixed baffle is fixedly connected to one end of the baffle connector, and the sliding baffle is slidably connected to the other end of the baffle connector, with its sliding direction parallel to the axial direction of the coil power shaft;

[0035] The radial telescopic guide structure is installed on the coil power shaft, and its moving end is fixedly connected to the baffle connector, which drives the baffle connector, along with the fixed baffle and the sliding baffle, to move in the radial direction of the coil power shaft; when the fixed baffle and the sliding baffle are in the retracted state, it is convenient for the coiled corrugated tube to disengage from the coil gripper.

[0036] The film clamping assembly is installed at the bottom end of the coil gripper, which fixes the starting end of the packaging film.

[0037] The clamping assembly is mounted at the bottom of another coil gripper, which secures the head of the bellows.

[0038] The inner diameter of the coil gripper is adjustable, and the width of the baffle is adjustable to accommodate corrugated pipes of different specifications. The radial telescopic structure allows the baffle to retract during unloading, facilitating the release of the coiled corrugated pipe from the gripper. The film clamping assembly and the pipe clamping assembly respectively fix the film material and the pipe material, ensuring reliable fixation at the starting end of the coiling and wrapping processes.

[0039] In a further optimized version, the pipe laying mechanism also includes a pipe laying sleeve, several guide rollers, and a lateral movement assembly;

[0040] The tube sleeve is for the corrugated pipe to pass through, the outlet end of the tube sleeve extends to the inlet end of the coiling mechanism located at the coiling station, and the outlet direction of the tube sleeve is tangent to the rotation direction of the coiling mechanism.

[0041] The tube sleeve is connected to a swinging component, which drives the tube sleeve to swing in a plane perpendicular to the rotation axis of the coiling mechanism, so that the discharge end of the tube sleeve always fits against the outer surface of the coil during the coiling process.

[0042] Several guide rollers are arranged in pairs, and a guide roller groove is formed between two pairs of guide rollers to guide the bellows into the pipe sleeve along a predetermined path;

[0043] The moving end of the transverse component is equipped with the tube sleeve and several of the guide rollers, and drives the tube sleeve and several of the guide rollers to reciprocate in a direction parallel to the rotation axis of the coiling mechanism, thereby evenly arranging the corrugated pipes on the coiling mechanism.

[0044] The transverse component ensures uniform arrangement of the corrugated pipes along the axial direction of the coil mechanism, preventing loosening; the swing component ensures that the discharge end of the pipe sleeve always fits against the outer surface of the coil, adapting to the gradual increase in the outer diameter of the coil as the number of layers increases, thus ensuring stable pipe arrangement quality.

[0045] The optimized solution further includes an automatic film wrapping mechanism comprising a film wrapping support, a film supply assembly, and a film wrapping drive assembly.

[0046] The film supply assembly provides packaging film to the coiled corrugated tube located at the wrapping station;

[0047] The film-wrapping drive assembly is mounted on the film-wrapping bracket and drives the film-supply assembly to move relative to the film-wrapping bracket, thereby wrapping the packaging film around the outer surface of the roll corrugated tube.

[0048] The automatic wrapping mechanism is divided into two main functional modules: film supply and drive, with a clear structure. The wrapping drive component controls the wrapping path of the film material, enabling the packaging film to wrap the entire cylindrical surface and end face of the coil, ensuring uniform and firm wrapping.

[0049] The solution is further optimized so that the film supply assembly includes a film roller assembly, a tensioning assembly, and a film breakage detection assembly;

[0050] The film roller assembly packages the film roll and delivers the packaging film to the wrapping station;

[0051] The tensioning component adjusts the tension of the packaging film during transport;

[0052] The film breakage detection component detects whether the packaging film is broken.

[0053] The tensioning component ensures that the film material is properly tensioned during the conveying process, avoiding breakage due to excessive tension or loose winding due to insufficient tension; the film breakage detection component monitors the film material status in real time, and promptly stops the machine and alarms when film breaks, avoiding ineffective operations and material waste.

[0054] In a further optimized design, the wrapping drive assembly includes a translation drive structure and a swing drive structure, which are respectively mounted on the wrapping bracket;

[0055] The translation drive structure drives the film supply assembly to reciprocate in a direction parallel to the rotation axis of the coil mechanism, so that the width of the packaging film can cover the axial length range of the rolled corrugated tube.

[0056] The swing drive structure drives the film supply assembly to swing in a plane so that the packaging film wraps around the two end faces of the rolled corrugated tube.

[0057] The translational and oscillating movements work together. Translation ensures that the film material fully covers the width of the roll, while oscillation ensures that the film material wraps around both ends of the roll, resulting in a complete, beautiful, and secure wrapping that does not loosen.

[0058] In a further optimized version, the automatic film wrapping mechanism also includes an air knife film feeding assembly;

[0059] The air knife film feeding assembly is installed on the film wrapping bracket. At the start of the film wrapping process, the starting end of the packaging film is blown by airflow to the coil mechanism located at the film wrapping station, so that the coil mechanism can hold the starting end of the packaging film.

[0060] Air knife film feeding utilizes airflow to automatically transport and position the film material at the starting end, eliminating the need for manual operation, thus improving the level of automation and shortening the preparation time for the film wrapping process.

[0061] In a further optimized version, the automatic wrapping mechanism also includes a film pressing component, which is mounted on the wrapping bracket to press the packaging film tightly onto the surface of the rolled corrugated tube.

[0062] During the wrapping process, the film pressing assembly presses the film material tightly against the surface of the coil, expelling the air between the film material and the coil, so that the packaging film adheres tightly and the wrapping is firm; after the film is cut, it works with the coil's rotation to press the tail film and prevent the film material from loosening and falling off.

[0063] In a further optimized version, the automatic unloading mechanism includes an unloading push plate and a clamping push plate;

[0064] The unloading push plate and the clamping push plate can reciprocate along the rotation axis of the coil mechanism parallel to the unloading station.

[0065] The unloading pusher pushes the coiled corrugated tube with the packaging film wrapped around it from the coiling mechanism at the unloading station, and pushes it against the clamping pusher to clamp it. At the same time, the unloading pusher retracts from the coiling mechanism, the clamping pusher releases, and the coiled corrugated tube rolls down to the material picking position.

[0066] The unloading pusher and the clamping pusher work together to smoothly unload the completed film-wrapped coil from the coiling mechanism and automatically roll it to the material pick-up position. No manual intervention is required throughout the process, ensuring operational safety and improving unloading efficiency.

[0067] The three-station automatic corrugated pipe wrapping and unloading machine of the present invention has the following technical advantages compared with the prior art:

[0068] 1. Three-station parallel operation significantly improves production efficiency. This invention sets up three stations: a coiling station, a wrapping station, and a unloading station. These three stations rotate synchronously with the three-station turntable, enabling parallel and coordinated operation of the three processes of coiling, wrapping, and unloading. This effectively solves the problems of process disconnect and high equipment idle rate in existing single-station or dual-station equipment, significantly improving production efficiency and making it well-suited for high-speed extrusion production lines.

[0069] 2. Automatic film wrapping and automatic unloading reduce manual intervention. This invention integrates an automatic film wrapping mechanism and an automatic unloading mechanism. After coiling, no manual labor or additional equipment is needed to transfer materials. Film wrapping and unloading are completed online, significantly reducing labor intensity and safety risks.

[0070] 3. Integrated structure and compact layout. This invention integrates three functional units—coiling, wrapping, and unloading—into a single device, resulting in a compact structure, small footprint, and stable packaging quality.

[0071] 4. Adaptable to various specifications and materials of corrugated pipes, offering strong versatility. The surface of the coil claw disc of this invention can be set with graduations, allowing adjustment of the inner diameter and width of the coil according to different specifications of corrugated pipes; the baffle can be adjusted by adjusting the coil width via rollers, and can also be replaced to accommodate more specifications; the unloading push plate can be adjusted according to specifications. The above structural design enables the equipment to adapt to various specifications and materials of corrugated pipes, offering strong versatility.

[0072] 5. The equipment is highly rigid and operates stably. This invention uses a positioning and locking assembly to accurately position and lock the three-station turntable, ensuring the stability of each station's operation and preventing turntable deviation during operation. A tension adjustment mechanism automatically adjusts the bellows tension, ensuring coil regularity. The equipment operates stably, is easy to maintain, and is suitable for large-scale production of bellows. Attached Figure Description

[0073] Figure 1 This is a perspective view of a specific embodiment of the three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to the present invention;

[0074] Figure 2 yes Figure 1 The main view after hiding the outer frame;

[0075] Figure 3 yes Figure 2 Location diagram of the three workstations and coil status diagram;

[0076] Figure 4 yes Figure 3 Switch to the transition state diagram of the workstation and execute the tube cutting and membrane cutting actions;

[0077] Figure 5 yes Figure 1 A 3D view of the three-station rotary table;

[0078] Figure 6 yes Figure 1 A three-dimensional view of the central tube structure;

[0079] Figure 7 yes Figure 1 A 3D view of the central tube mechanism;

[0080] Figure 8 yes Figure 1 A three-dimensional view of an automatic wrapping mechanism;

[0081] Figure 9 yes Figure 1 A 3D view of the automatic unloading mechanism;

[0082] Figure 10 yes Figure 1 A three-dimensional view of the central cutting membrane mechanism.

[0083] In the diagram: coiling station A, wrapping station B, unloading station C;

[0084] 100 racks;

[0085] Three-station rotary table 200, rotary table body 210, revolution drive assembly 220, revolution motor 221, sprocket and chain transmission mechanism 222, positioning and locking assembly 230, locking cylinder 231, positioning pin 232;

[0086] The components include: coil mechanism 300, coil rotation power assembly 310, coil motor 311, synchronous belt drive mechanism 312, coil power shaft 320, coil gripper 330, baffle assembly 340, fixed baffle 341, sliding baffle 342, baffle connector 343, radial telescopic guide structure 344, telescopic cylinder 345, guide rail 346, membrane clamping assembly 350, membrane clamping cylinder 351, membrane clamping push plate 352, tube clamping assembly 360, tube clamping cylinder 361, tube clamping pressure plate 362, gripper outer diameter adjustment assembly 370, and adjusting screw 371.

[0087] The system includes an automatic film wrapping mechanism 400, a film wrapping support 410, a film supply assembly 420, a film roller assembly 421, a rotary switching frame 421a, a first film supply roller 421b, a second film supply roller 421c, a conveying roller 421d, a tensioning assembly 422, a film breakage detection assembly 423, a detection roller 423a, a counterweight 423b, a film breakage detection sensor 423c, a film wrapping drive assembly 430, a translation drive structure 431, a translation motor 431a, a translation gear and rack transmission component 431b, a swing drive structure 432, a swing motor 432a, a swing linkage 432b, a film pressing assembly 440, a film pressing support 441, a film pressing cylinder 442, a first film pressing roller 443, a swing arm 444, and an air knife film feeding assembly 450.

[0088] Automatic unloading mechanism 500, unloading push plate 510, clamping push plate 520, unloading support base 530, unloading cylinder 540, unloading guide rail 550, clamping cylinder 560;

[0089] Pipe laying mechanism 600, pipe cutting assembly 610, pipe cutting knife 611, pipe cutting cylinder 612, pipe laying sleeve 620, guide roller 630, guide roller groove 631, lateral movement assembly 640, lateral movement motor 641, lateral movement screw transmission mechanism 642, lateral movement slide 643, swing assembly 650, swing cylinder 651, swing bracket 652.

[0090] Film cutting mechanism 700, ejection assembly 710, film cutting assembly 720, film cutting cylinder 721, heating device 722, film cutting blade 723, second pressure roller 730. Detailed Implementation

[0091] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0092] like Figures 1 to 10 As shown, this invention provides a specific embodiment of a three-station coiling machine for automatic wrapping and unloading of corrugated pipes.

[0093] like Figure 1 , Figure 2 and Figure 3 As shown, the three-station coiling machine for automatic wrapping and unloading of corrugated pipes in this embodiment includes a frame 100, a three-station turntable 200, three coiling mechanisms 300, an automatic wrapping mechanism 400, and an automatic unloading mechanism 500. The three-station turntable 200 is rotatably mounted on the frame 100. The outer circumference of the three-station turntable 200 is provided with a coiling station A, a wrapping station B, and an unloading station C according to the process. The three coiling mechanisms 300 are respectively fixedly mounted on the three-station turntable 200, and rotate with the three-station turntable 200, sequentially circulating... The machine switches to coiling station A, wrapping station B, and unloading station C. The coiling mechanism 300 at coiling station A rotates to coil the corrugated pipe into a roll and clamps the roll of corrugated pipe. The automatic wrapping mechanism 400 is mounted on the frame 100 and located at wrapping station B. When the coiling mechanism 300 rotates, it wraps the packaging film around the outside of the roll of corrugated pipe. The automatic unloading mechanism 500 is mounted on the frame 100 and located at unloading station C. It unloads the roll of corrugated pipe wrapped with packaging film from the coiling mechanism 300.

[0094] The three-station coiling machine for automatic wrapping and unloading of corrugated pipes uses a three-station turntable 200 to drive three coiling mechanisms 300 to cycle through each station in sequence, realizing the integrated operation of coiling, wrapping, and unloading on the same equipment. This solves the technical problems of process disconnection and high equipment idle rate in existing single-station or double-station equipment. The three coiling mechanisms 300 rotate with the three-station turntable 200 and switch to each station in sequence, respectively performing coiling, wrapping, and unloading actions.

[0095] like Figure 1 , Figure 2 and Figure 5As shown, the rotation axis of the three-station turntable 200 is set horizontally. The three-station turntable 200 adopts a horizontal axis layout, which allows the coiling mechanism 300 to rotate and switch positions in the vertical plane. This facilitates the maintenance of a stable posture of the corrugated pipe during coiling and wrapping, and also allows for gravity-assisted unloading during unloading. The vertical turntable occupies less space, which is conducive to the compact layout of the overall equipment.

[0096] like Figure 3 As shown, when the three-station turntable 200 rotates to the corresponding position and locks, the three coiling mechanisms 300 located at coiling station A, wrapping station B and unloading station C simultaneously perform coiling, wrapping and unloading operations, and the operations at each station do not interfere with each other.

[0097] With three workstations operating simultaneously without interference, equipment utilization is greatly improved, production efficiency is significantly increased, and it is well adapted to high-speed extrusion production lines.

[0098] like Figure 2 and Figure 6 As shown, a tube-laying mechanism 600 is installed on the frame 100, which is located at the coiling station A. The tube-laying mechanism 600 guides and arranges the corrugated pipes onto the coiling mechanism 300 located at the coiling station A. The tube-laying mechanism 600 includes a tube-cutting assembly 610, which cuts the corrugated pipes after the coiling mechanism 300 completes the coiling, so that the three-station turntable 200 can rotate to switch the rolled corrugated pipes to the wrapping station B.

[0099] like Figure 4 and Figure 6 As shown, the pipe cutting assembly 610 includes a pipe cutting blade 611 and a pipe cutting cylinder 612. The pipe cutting cylinder 612 is mounted on the pipe laying mechanism 600, and the pipe cutting blade 611 is connected to the piston rod of the pipe cutting cylinder 612. The pipe cutting cylinder 612 drives the pipe cutting blade 611 to move toward the corrugated pipe to cut it. Specifically, the pipe cutting blade 611 has a scissor structure.

[0100] The tube laying mechanism 600 ensures the uniform arrangement of the corrugated pipe during the coiling process, avoiding loose or irregular coiling; the tube cutting assembly 610 realizes automatic cutting after the coiling is completed without manual intervention, meeting the requirement of automatically switching the turntable to the wrapping station B.

[0101] like Figure 4 and Figure 10 As shown, a film cutting mechanism 700 is installed on the frame 100, which is located between the wrapping station B and the unloading station C; the film cutting mechanism 700 cuts the packaging film after the wrapping is completed.

[0102] like Figure 10As shown, the film cutting mechanism 700 includes an ejection assembly 710, a film cutting assembly 720, and a second pressure roller 730. The film cutting assembly 720 and the second pressure roller 730 are respectively mounted on the moving end of the ejection assembly 710. The ejection assembly 710 is mounted on the frame 100 and is used to push the film cutting assembly 720 and the second pressure roller 730 toward the coil of wrapped packaging film after the film is wrapped. The second pressure roller 730 is used to press the packaging film during the film cutting process and to press the tail film by the rotation of the coil after film cutting. Specifically, the ejection assembly 710 is a cylinder.

[0103] The film cutting assembly 720 includes a film cutting cylinder 721, a heating device 722, and a film cutting blade 723. The heating device 722 is used to heat the film cutting blade 723, and the film cutting cylinder 721 drives the heated film cutting blade 723 to cut the packaging film.

[0104] It enables automatic film cutting after the wrapping process, eliminating the need for manual cutting, ensuring neat cuts and tight film adherence to the coil, thus improving packaging quality and automation level.

[0105] like Figure 5 As shown, the three-station turntable 200 includes a turntable body 210, a revolution drive assembly 220, and a positioning and locking assembly 230. The turntable body 210 is rotatably mounted on the frame 100, and three coiling mechanisms 300 are distributed on the turntable body 210 along the circumferential direction. The output end of the revolution drive assembly 220 drives the turntable body 210 to rotate, realizing the switching of the three coiling mechanisms 300 between the coiling station A, the wrapping station B, and the unloading station C. The positioning and locking assembly 230 is mounted on the frame 100, and locks the turntable body 210 in position when the three coiling mechanisms 300 correspond to the three stations respectively.

[0106] like Figure 5 As shown, the revolution drive assembly 220 includes a revolution motor 221 and a sprocket and chain transmission mechanism 222. The revolution motor 221 is fixedly mounted on the frame 100, and the output end of the revolution motor 221 is connected to the central spindle of the turntable body 210 through the sprocket and chain transmission mechanism 222 to drive the turntable body 210 to rotate.

[0107] like Figure 5 As shown, the positioning and locking assembly 230 includes a locking cylinder 231 and a positioning pin 232; the locking cylinder 231 is fixedly installed on the frame 100, and the turntable body 210 is provided with positioning holes corresponding to the three workstations; when the turntable body 210 rotates to the point where the three coil mechanisms 300 correspond to the three workstations respectively, the locking cylinder 231 drives the positioning pin 232 to insert into the corresponding positioning hole, thereby locking and positioning the turntable body 210.

[0108] The revolution and rotation power are separated, and each coil mechanism 300 can rotate independently without interfering with each other; the positioning and locking component 230 ensures the reliable positioning and stability of the turntable during operation.

[0109] like Figure 7 As shown, each coil mechanism 300 includes a coil rotation power assembly 310, a coil power shaft 320, four coil gripping discs 330, four sets of baffle assemblies 340, a membrane clamping assembly 350, and a tube clamping assembly 360. The coil rotation power assembly 310 is mounted on the turntable body 210 and is connected to the coil power shaft 320 to drive the corresponding coil mechanism 300 to rotate. The coil power shaft 320 is rotatably mounted on the three-position turntable 200 via bearings. The output end of 10 is connected to the coil power shaft 320, which drives the coil power shaft 320 to rotate; four coil grippers 330 are circumferentially distributed and installed on the coil power shaft 320 and extend axially; the bellows is coiled on the outer surface of the coil grippers 330; four sets of baffle assemblies 340 are circumferentially distributed and installed on the coil power shaft 320; each set of baffle assembly 340 includes a fixed baffle 341, a sliding baffle 342, a baffle connector 343 and a radial telescopic guide structure 344.

[0110] The baffle connector 343 extends along the axial direction parallel to the coil power shaft 320; the fixed baffle 341 and the sliding baffle 342 are respectively installed and connected to the baffle connector 343. The fixed baffle 341 is fixedly connected to one end of the baffle connector 343, and the sliding baffle 342 is slidably connected to the other end of the baffle connector 343, and its sliding direction is parallel to the axial direction of the coil power shaft 320.

[0111] like Figure 7 As shown, the radial telescopic guide structure 344 is installed on the coil power shaft 320, and its moving end is fixedly connected to the baffle connector 343, which drives the baffle connector 343, along with the fixed baffle 341 and the sliding baffle 342, to move in the radial direction of the coil power shaft 320; when the fixed baffle 341 and the sliding baffle 342 are in the retracted state, it is convenient for the coiled corrugated pipe to disengage from the coil gripper 330.

[0112] like Figure 7 As shown, the film clamping assembly 350 is installed at the bottom end of a coil gripper 330, which fixes the starting end of the packaging film; the tube clamping assembly 360 is installed at the bottom end of another coil gripper 330, which fixes the head of the corrugated tube.

[0113] Specifically, such as Figure 5 and Figure 7As shown, each set of coil rotation power components 310 includes a coil motor 311 and a synchronous belt drive mechanism 312; the coil motor 311 is fixedly installed on the turntable body 210, and the output end of the coil motor 311 is connected to the corresponding coil power shaft 320 through the synchronous belt drive mechanism 312 to drive the coil mechanism 300 to rotate.

[0114] like Figure 7 As shown, the coil gripper 330 is connected to a gripper outer diameter adjustment assembly 370; the gripper outer diameter adjustment assembly 370 includes an adjustment screw 371, which is connected to the coil gripper 330 in a transmission manner. By rotating the adjustment screw 371, the coil gripper 330 is driven to move radially along the coil power shaft 320 to adjust the outer diameter of the coil gripper 330 and adapt to corrugated pipes with different inner diameter specifications.

[0115] like Figure 7 As shown, the radial telescopic guide structure 344 includes a telescopic cylinder 345 and a guide rail 346; the guide rail 346 is fixedly installed on the coil power shaft 320, and the baffle is slidably connected to the guide rail 346; the cylinder body of the telescopic cylinder 345 is fixedly installed on the coil power shaft 320, and the piston rod end of the telescopic cylinder 345 is fixedly connected to the baffle, driving the baffle to extend or retract radially along the coil power shaft 320.

[0116] When the baffle is extended, it restricts the axial position of the bellows coil; when the baffle is retracted, it facilitates the release of the coiled bellows from the coil gripper 330.

[0117] like Figure 7 As shown, the film clamping assembly 350 includes a film clamping cylinder 351 and a film clamping pusher plate 352; the cylinder body of the film clamping cylinder 351 is mounted on the base plate of the coil gripper plate 330, and the film clamping pusher plate 352 is connected to the piston rod end of the film clamping cylinder 351; the film clamping cylinder 351 drives the film clamping pusher plate 352 to move, clamping and fixing the starting end of the packaging film on the coil gripper plate 330.

[0118] like Figure 7 As shown, the pipe clamping assembly 360 includes a pipe clamping cylinder 361 and a pipe clamping plate 362; the cylinder body of the pipe clamping cylinder 361 is mounted on the base plate of the coil gripper 330, and the pipe clamping plate 362 is connected to the piston rod end of the pipe clamping cylinder 361; the pipe clamping cylinder 361 drives the pipe clamping plate 362 to swing, clamping and fixing the starting end of the bellows on the coil gripper 330.

[0119] The coil gripper 330 has an adjustable inner diameter, and the baffle has an adjustable width to accommodate corrugated pipes of different specifications. The radial telescopic structure allows the baffle to retract during unloading, facilitating the release of the coiled corrugated pipe from the gripper. The film clamping assembly 350 and the pipe clamping assembly 360 respectively fix the film material and the pipe material, ensuring reliable fixation at the starting end of the coiling and wrapping process. The coiling mechanism 300, located at coiling station A, presses down on the end of the corrugated pipe and rotates to coil it, forming a coil with overlapping inner and outer rings along the rotation axis.

[0120] like Figure 6 As shown, the tube-laying mechanism 600 also includes a tube-laying sleeve 620, several guide rollers 630, and a transverse component 640. The tube-laying sleeve 620 is through which the corrugated pipe passes, and the discharge end of the tube-laying sleeve 620 extends to the inlet end of the coiling mechanism 300 located at the coiling station A. The discharge direction of the tube-laying sleeve 620 is tangential to the rotation direction of the coiling mechanism 300. The tube-laying sleeve 620 is connected to a swing component 650, which drives the tube-laying sleeve 620 to swing in a plane perpendicular to the rotation axis of the coiling mechanism 300, so that the discharge end of the tube-laying sleeve 620 always adheres to the outer surface of the coil during the coiling process. Several guide rollers 630 are arranged in pairs, and a guide roller groove 631 is formed between the two guide rollers 630 in a pair to guide the corrugated pipe into the tube-laying sleeve 620 along a predetermined path.

[0121] like Figure 6 As shown, the moving end of the transverse component 640 is equipped with a pipe sleeve 620 and several guide rollers 630, and drives the pipe sleeve 620 and several guide rollers 630 to reciprocate in a direction parallel to the rotation axis of the coil mechanism 300, thereby evenly arranging the bellows on the coil mechanism 300.

[0122] like Figure 6 As shown, the transverse assembly 640 includes a transverse motor 641, a transverse screw drive mechanism 642, and a transverse slide 643. The transverse motor 641 is fixedly mounted on the frame 100, and the transverse screw drive mechanism 642 is rotatably mounted on the frame 100 and is connected to the output end of the transverse motor 641. The transverse slide 643 is slidably mounted on the frame 100 and is fixedly connected to the screw nut of the transverse screw drive mechanism 642. The tube sleeve 620 and several guide rollers 630 are mounted on the transverse slide 643. The transverse motor 641 drives the transverse slide 643 to reciprocate along a direction parallel to the rotation axis of the coil mechanism 300 through the transverse screw drive mechanism 642, so as to drive the tube sleeve 620 and several guide rollers 630 to move synchronously, so as to evenly distribute the corrugated pipe from the inside to the outside on the coil mechanism 300.

[0123] like Figure 6As shown, the swing assembly 650 includes a swing cylinder 651 and a swing bracket 652; the tube sleeve 620 is connected to the output end of the swing cylinder 651 through the swing bracket 652, and the cylinder body of the swing cylinder 651 is connected to the transverse slide table 643; the swing cylinder 651 drives the swing bracket 652 to swing in the vertical plane; during the coiling process, the swing cylinder 651 drives the swing bracket 652 to swing, so that the discharge end of the tube sleeve 620 is always in contact with the outer surface of the coil; after the coiling is completed, the swing cylinder 651 drives the swing bracket 652 to swing upward to the tube cutting position, so that the tube cutting assembly 610 can cut the corrugated pipe.

[0124] The transverse component 640 achieves uniform arrangement of the corrugated pipe along the axial direction of the coil mechanism 300 to prevent loosening; the swing component 650 ensures that the discharge end of the pipe sleeve 620 always fits against the outer surface of the coil, adapting to the gradual increase in the outer diameter of the coil as the number of layers increases, and ensuring stable pipe arrangement quality.

[0125] like Figure 8 As shown, the automatic wrapping mechanism 400 includes a wrapping support 410, a film supply assembly 420, and a wrapping drive assembly 430; the film supply assembly 420 supplies packaging film to the coiled corrugated tube located at the wrapping station B; the wrapping drive assembly 430 is mounted on the wrapping support 410 and drives the film supply assembly 420 to move relative to the wrapping support 410, wrapping the packaging film around the outer surface of the coiled corrugated tube.

[0126] The automatic wrapping mechanism 400 is divided into two main functional modules: film supply and drive, with a clear structure. The wrapping drive component 430 controls the wrapping path of the film material, enabling the packaging film to wrap the entire cylindrical surface and end face of the coil, ensuring uniform and firm wrapping.

[0127] like Figure 8 As shown, the film supply assembly 420 includes a film roller assembly 421, a tensioning assembly 422, and a film breakage detection assembly 423; the film roller assembly 421 sets up the packaging film roll and conveys the packaging film to the wrapping station B; the tensioning assembly 422 adjusts the tension of the packaging film during the conveying process; and the film breakage detection assembly 423 detects whether the packaging film is broken.

[0128] like Figure 8As shown, the film roller assembly 421 includes a rotary switching frame 421a, a first film supply roller 421b, a second film supply roller 421c, and a conveying roller 421d. The first film supply roller 421b and the second film supply roller 421c are rotatably mounted at both ends of the rotary switching frame 421a. The rotary switching frame 421a is rotatably mounted on the wrapping support 410. By rotating the rotary switching frame 421a, the positions of the first film supply roller 421b and the second film supply roller 421c are exchanged. The conveying roller 421d is rotatably mounted on the wrapping support 410 and is located downstream of the rotary switching frame 421a. It is used to receive and guide the packaging film released from the first film supply roller 421b or the second film supply roller 421c to the wrapping station B.

[0129] When the first film supply roller 421b is in the film supply position, the second film supply roller 421c is in the standby position. When the film material on the first film supply roller 421b is about to run out, the starting end of the standby film material on the second film supply roller 421c is attached to the film material being released on the first film supply roller 421b. Then, the rotary switching frame 421a is rotated to switch the second film supply roller 421c to the film supply position and the first film supply roller 421b to the standby position, so as to achieve rapid film replacement without stopping the machine.

[0130] like Figure 8 As shown, the film breakage detection assembly 423 includes a detection roller 423a, a counterweight 423b, and a film breakage detection sensor 423c. The detection roller 423a abuts against the surface of the packaging film, and the counterweight 423b is connected to one end of the detection roller 423a. The pressure of the detection roller 423a on the packaging film is set by adjusting the gravity of the counterweight 423b. The film breakage detection sensor 423c is used to detect the position change of the detection roller 423a. When the packaging film breaks, the position of the detection roller 423a changes, and the film breakage detection sensor 423c sends a film breakage signal.

[0131] The tensioning component 422 ensures that the film material is properly tensioned during the conveying process, avoiding breakage due to excessive tension or loose winding due to insufficient tension; the film breakage detection component 423 monitors the film material status in real time, and promptly stops the machine and alarms when film breaks, avoiding ineffective operation and material waste.

[0132] like Figure 8 As shown, the film-wrapping drive assembly 430 includes a translation drive structure 431 and a swing drive structure 432, which are respectively mounted on the film-wrapping bracket 410. The translation drive structure 431 drives the film supply assembly 420 to reciprocate along a direction parallel to the rotation axis of the coil mechanism 300, so that the width of the packaging film can cover the axial length range of the rolled corrugated tube. The swing drive structure 432 drives the film supply assembly 420 to swing in the plane so that the packaging film wraps the two end faces of the rolled corrugated tube.

[0133] like Figure 8As shown, the translation drive structure 431 includes a translation motor 431a and a translation gear rack transmission component 431b. The translation motor 431a is fixedly mounted on the wrapping bracket 410, and its output end is connected to the gear of the translation gear rack transmission component 431b via a coupling. The translation gear rack transmission component 431b is arranged in a direction parallel to the rotation axis of the coil mechanism 300, and its rack is fixedly connected to the wrapping bracket 410 of the film supply assembly 420. The translation motor 431a drives the gear to rotate, and through the meshing of the gear and rack, drives the film supply assembly 420 to reciprocate along the axial direction of the coil mechanism 300. According to the width of the coil, the control system presets the travel of the translation drive structure 431, so that the coverage width of the packaging film in the axial direction of the coil matches the width of the coil, achieving uniform wrapping across the entire width.

[0134] like Figure 8 As shown, the swing drive structure 432 includes a swing motor 432a and a swing connecting rod 432b. The swing motor 432a is fixedly mounted on the wrapping bracket 410, and its output end is connected to one end of the swing connecting rod 432b. The other end of the swing connecting rod 432b is hinged to the mounting base of the film supply assembly 420. The swing motor 432a drives the swing connecting rod 432b to swing back and forth, causing the film supply assembly 420 to swing in the horizontal plane. During the wrapping process, the film supply assembly 420 swings back and forth between the two axial sides of the coil as driven by the swing drive structure 432, so that the packaging film forms a folded wrap at the two end faces of the coil, thereby completely covering the entire cylindrical surface and both end faces of the coil with the packaging film.

[0135] The translational and oscillating movements work together. Translation ensures that the film material fully covers the width of the roll, while oscillation ensures that the film material wraps around both ends of the roll, resulting in a complete, beautiful, and secure wrapping that does not loosen.

[0136] like Figure 8 As shown, the automatic wrapping mechanism 400 also includes an air knife film feeding assembly 450; the air knife film feeding assembly 450 is installed on the wrapping bracket 410, and at the beginning of the wrapping process, it blows the starting end of the packaging film to the coil mechanism 300 located at the wrapping station B by airflow, so that the coil mechanism 300 can hold the starting end of the packaging film.

[0137] Air knife film feeding utilizes airflow to automatically transport and position the film material at the starting end, eliminating the need for manual operation, thus improving the level of automation and shortening the preparation time for the film wrapping process.

[0138] like Figure 8 As shown, the automatic wrapping mechanism 400 also includes a film pressing assembly 440, which is mounted on the wrapping bracket 410 to press the packaging film onto the surface of the roll corrugated tube.

[0139] During the wrapping process, the film pressing assembly 440 presses the film material tightly against the surface of the coil, expelling the air between the film material and the coil, so that the packaging film is tightly bonded and firmly wrapped; after the film is cut, it works with the coil to press the tail film with its own rotation to prevent the film material from loosening and falling off.

[0140] like Figure 8 As shown, the film pressing assembly 440 includes a film pressing bracket 441, a film pressing cylinder 442, a first film pressing roller 443, and a swing arm 444. The film pressing bracket 441 is fixedly installed on the wrapping bracket 410, located at the wrapping station B, and is positioned close to the outer circumferential surface of the roll.

[0141] One end of the swing arm 444 is rotatably mounted on the film pressing bracket 441 via a pin, and the first film pressing roller 443 is rotatably mounted on the other end of the swing arm 444. The axis of the first film pressing roller 443 is parallel to the rotation axis of the coil mechanism 300 located at the film wrapping station B, so as to ensure that the first film pressing roller 443 forms a line contact with the outer peripheral surface of the coil, increasing the pressing area and making the film material evenly adhere to the surface of the coil.

[0142] The cylinder body of the pressing cylinder 442 is fixedly mounted on the pressing bracket 441, and the end of its piston rod is hinged to the middle of the swing arm 444. When the piston rod of the pressing cylinder 442 extends, it pushes the swing arm 444 to swing around its hinge point, causing the first pressing roller 443 to move in the winding direction until the first pressing roller 443 abuts against the outer circumferential surface of the coil. When the piston rod of the pressing cylinder 442 retracts, it pulls the swing arm 444 to swing in the opposite direction, causing the first pressing roller 443 to disengage from the outer circumferential surface of the coil and return to its initial position.

[0143] At the start of the film wrapping process, the piston rod of the pressure cylinder 442 extends, pushing the swing arm 444 to swing, causing the first pressure roller 443 to move towards the coil and abut against the outer circumferential surface of the coil. The first pressure roller 443 presses the film material tightly onto the surface of the coil with appropriate pressure. Subsequently, the coil mechanism 300 drives the coil to rotate, while the film assembly 420 feeds film material to the coil. Under the action of friction, the first pressure roller 443 passively rotates with the rotation of the coil, continuously and evenly pressing the film material onto the outer circumferential surface of the coil, expelling air between the film material and the coil, and ensuring a tight fit between the film material and the coil.

[0144] During the wrapping process, as the outer diameter of the coil gradually increases due to the increase in the number of film layers, the first pressure roller 443 adaptively retracts along the radial direction of the coil to maintain a constant pressure on the surface of the coil, thus avoiding excessive or insufficient pressure due to changes in the outer diameter of the coil.

[0145] After the film wrapping is completed, the piston rod of the film-pressing cylinder 442 retracts, pulling the swing arm 444 to swing in the opposite direction, causing the first film-pressing roller 443 to detach from the coil surface and return to its initial position, making room for the subsequent film-cutting process and turntable rotation. In the film-cutting process, the second film-pressing roller 730 of the film-cutting mechanism 700 takes over the film-pressing function of the film-pressing assembly 440, pressing the film material during the film-cutting process and pressing the tail film after cutting.

[0146] like Figure 9 As shown, the automatic unloading mechanism 500 includes an unloading push plate 510 and a clamping push plate 520; the unloading push plate 510 and the clamping push plate 520 can reciprocate along the rotation axis of the coil mechanism 300 parallel to the unloading station C; the unloading push plate 510 pushes out the rolled corrugated tube with the packaging film wrapped on the coil mechanism 300 at the unloading station C, and pushes it against the clamping push plate 520 to clamp it. At the same time, the unloading push plate 510 exits the coil mechanism 300, the clamping push plate 520 is released, and the rolled corrugated tube rolls down to the picking position.

[0147] Specifically, such as Figure 9 As shown, the automatic unloading mechanism 500 also includes an unloading support 530, an unloading cylinder 540, an unloading guide rail 550, and a clamping cylinder 560. The unloading support 530 is fixedly installed on the frame 100 and located at the unloading station C. The unloading guide rail 550 is fixedly installed on the unloading support 530 in a direction parallel to the rotation axis of the coil mechanism 300 at the unloading station C.

[0148] The unloading push plate 510 is slidably mounted on the unloading guide rail 550. The side of the unloading push plate 510 facing the coil has an arc-shaped push surface adapted to the outer contour of the corrugated coil to ensure full contact and uniform force between the push plate and the coil during the unloading process, and to prevent the coil from tilting or being damaged during the unloading process. The cylinder body of the unloading cylinder 540 is fixedly mounted on the unloading support 530, and the end of its piston rod is fixedly connected to the unloading push plate 510, which is used to drive the unloading push plate 510 to reciprocate along the unloading guide rail 550.

[0149] The clamping pusher plate 520 is slidably mounted on the unloading guide rail 550 and is located in front of the unloading pusher plate 510 in the pushing direction. The cylinder body of the clamping cylinder 560 is fixedly mounted on the unloading support 530, and the end of its piston rod is fixedly connected to the clamping pusher plate 520, which is used to drive the clamping pusher plate 520 to reciprocate along the unloading guide rail 550. The side of the clamping pusher plate 520 facing the coil also has an arc-shaped abutment surface adapted to the outer contour of the corrugated coil, which is used to cooperate with the unloading pusher plate 510 to clamp the coil during the unloading process. The cylinder diameter of the unloading cylinder 540 is larger than that of the clamping cylinder 560, so that the pushing force of the unloading pusher plate 510 is greater than the clamping force of the clamping pusher plate 520, so as to ensure that the unloading pusher plate 510 can smoothly push the coil out of the coil mechanism 300 and abut against the clamping pusher plate 520. Meanwhile, the clamping force of the clamping push plate 520 can be adjusted by adjusting the air pressure of the clamping cylinder 560 to meet the unloading requirements of coils of different specifications.

[0150] The receiving outlet is located at the discharge end of the unloading support 530, behind the clamping push plate 520. The receiving outlet has a slope, with its high end close to the clamping push plate 520 and its low end extending to the manual picking position. The receiving outlet has an inclination angle to ensure that the coil can automatically roll down to the manual picking position under gravity, while avoiding damage to the coil due to excessive rolling speed caused by a large slope.

[0151] The working process of the automatic unloading mechanism 500 is as follows:

[0152] When the wrapped corrugated tube rotates to the unloading station C along the three-station turntable 200, the unloading pusher plate 510, driven by the unloading cylinder 540, moves along the unloading guide rail 550 towards the coiling mechanism 300 to the unloading start position. Subsequently, the three-station turntable 200 rotates, switching the coiling mechanism 300 located at the wrapping station B to the unloading station C, and aligning the axis of the coiling mechanism 300 with the moving axes of the unloading pusher plate 510 and the clamping pusher plate 520. Next, the unloading cylinder 540 drives the unloading pusher plate 510 towards the coiling mechanism 300, and the arc-shaped pushing surface of the unloading pusher plate 510 abuts against the end face of the coil, pushing the coil axially out of the coiling gripper 330. During the process of the unloading pusher plate 510 pushing out the coil, the baffle assembly 340 of the coil mechanism 300 retracts radially under the drive of the radial telescopic guide structure 344, so that the coil is freed from the constraint of the coil gripper 330, making it easier for the unloading pusher plate 510 to push out the coil smoothly.

[0153] The unloading pusher plate 510 pushes the coil forward until its front end abuts against the arc-shaped contact surface of the clamping pusher plate 520. At this point, the clamping cylinder 560 drives the clamping pusher plate 520 to apply clamping force, working together with the unloading pusher plate 510 to clamp the coil and prevent it from shifting during subsequent actions. Driven by the unloading cylinder 540, the unloading pusher plate 510 retracts from the coil mechanism 300 and returns to its initial position. Subsequently, the clamping cylinder 560 drives the clamping pusher plate 520 to release the coil. After losing clamping force, the coil falls into the receiving outlet under gravity and automatically rolls along the slope of the receiving outlet to the manual removal position for the operator to retrieve. Throughout the unloading process, the operator does not need to enter the equipment, effectively avoiding the safety risks of manual operation.

[0154] After unloading is completed, all components are reset, and the three-station turntable 200 rotates to send the next completed film-wrapped coil into the unloading station C, and the unloading operation is repeated cyclically. The unloading push plate 510 and the clamping push plate 520 can be replaced with push plates of corresponding sizes according to different specifications of coils to adapt to corrugated pipe coils with different outer diameters and widths, further improving the versatility of the equipment.

[0155] The unloading pusher plate 510 and the clamping pusher plate 520 work together to smoothly unload the completed film-wrapped coil from the coiling mechanism 300 and automatically roll it to the material picking position. No manual intervention is required throughout the process, ensuring operational safety and improving unloading efficiency.

[0156] The workflow of this embodiment is as follows:

[0157] like Figure 2 and Figure 3As shown, the corrugated pipe enters the pipe laying mechanism 600. The pipe laying mechanism 600 feeds the corrugated pipe into the coiling mechanism 300 through the guide roller 630 and the pipe laying sleeve 620. The pipe clamping assembly 360 of the coiling mechanism 300 clamps the corrugated pipe and begins coiling. The pipe laying mechanism 600 arranges the pipes according to the pipe diameter. After coiling is completed, the three-station turntable 200 rotates a certain angle (e.g., 60°) and stops. The pipe cutting device on the pipe laying mechanism 600 cuts the corrugated pipe. The film pressing mechanism presses down, and the three-station turntable 200 rotates another certain angle (e.g., 60°) and stops. The film material is fed into the coiling mechanism 300 through the air knife film feeding mechanism. The film clamping assembly 350 clamps the film material, and the coiling mechanism 300 begins to rotate. The automatic wrapping mechanism 400 begins to swing, wrapping the film material around the coil. During the coiling process, the clamping tube assembly 360, the film clamping assembly 350, and the baffle telescopic mechanism return to their original positions, completing the wrapping. The pressing mechanism returns to its original position, and the three-station turntable 200 rotates again at a certain angle (e.g., 60°) and stops. The cutting mechanism 700 pushes out the pressing coil, cutting the film material, and the coil rotates to press the tail film. The three-station turntable rotates again at a certain angle (e.g., 60°) and stops. The unloading push plate 510 of the automatic unloading mechanism 500 pushes the coil out of the coiling mechanism 300, and the coil falls into the receiving outlet and rolls to the manual removal position. All mechanisms reset, and the three-station turntable 200 rotates back to the coiling station A, completing the entire process.

[0158] like Figure 4 As shown, the three stations operate synchronously without interference. While the coiling station A performs coiling operations, the wrapping station B performs wrapping operations, and the unloading station C performs unloading operations. After completing coiling, wrapping, and unloading, the three stations rotate to the middle position to cut the corrugated pipe and the wrapping film simultaneously without interference.

[0159] This invention provides a three-station coiling machine for automatic wrapping and unloading of corrugated pipes. It enables synchronous and coordinated operation of coiling, wrapping, and unloading, integrates automated control, reduces manual intervention, lowers labor intensity, and improves production efficiency. At the same time, it optimizes tension control and positioning structure to adapt to different specifications of corrugated pipes, avoids damage to the corrugated pipes during processing, ensures coil regularity and wrapping firmness, and improves product quality and production safety.

[0160] In summary, as described in the specification and figures, this invention has been manufactured into actual samples and tested multiple times. The test results demonstrate that the invention achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of the invention. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this invention without departing from the scope of the technical features and similar features of this invention, based on partial modifications or alterations, are within the protection scope of this invention.

Claims

1. A three-station coiled tubing machine with automatic film wrapping and unloading of the bellows, characterized in that: It includes a frame (100), a three-station turntable (200), three coiling mechanisms (300), an automatic wrapping mechanism (400), and an automatic unloading mechanism (500). The three-station turntable (200) is rotatably mounted on the frame (100). The outer circumference of the three-station turntable (200) is provided with a coiling station (A), a wrapping station (B), and a unloading station (C) according to the process. The three coiling mechanisms (300) are respectively fixedly installed on the three-station turntable (200), and rotate with the three-station turntable (200) to sequentially switch to the coiling station (A), the wrapping station (B) and the unloading station (C). The coiling mechanism (300) located at the coiling station (A) rotates to drive the corrugated pipe to coil into a coil shape and clamps the coiled corrugated pipe. The automatic wrapping mechanism (400) is mounted on the frame (100) and located at the wrapping station (B). When the coil mechanism (300) rotates, it wraps the packaging film around the outside of the roll corrugated tube. The automatic unloading mechanism (500) is mounted on the frame (100) and located at the unloading station (C), which unloads the rolled corrugated tube with the packaging film wrapped around it from the coil mechanism (300).

2. The three-station coiled tubing machine of claim 1, wherein, The rotation axis of the three-station turntable (200) is set horizontally.

3. The three-station coiled tubing machine of claim 1, wherein the automatic film wrapping and unloading system is configured to automatically wrap the film around the coiled tubing and to automatically remove the coiled tubing from the coiled tubing reel when When the three-station turntable (200) rotates to the corresponding position and locks, the three coiling mechanisms (300) located at the coiling station (A), the wrapping station (B), and the unloading station (C) simultaneously perform coiling, wrapping, and unloading operations, and the operations at each station do not interfere with each other.

4. The three-station coiled tubing machine of claim 1, wherein, A pipe-laying mechanism (600) is installed on the frame (100) and is located at the coiling station (A); the pipe-laying mechanism (600) guides and arranges the corrugated pipes onto the coiling mechanism (300) located at the coiling station (A); The tube laying mechanism (600) includes a tube cutting assembly (610). After the coiling mechanism (300) completes the coiling, the tube cutting assembly (610) cuts the corrugated tube, so that the three-station turntable (200) can rotate to switch the rolled corrugated tube to the wrapping station (B).

5. The three-station coiled tubing machine of claim 1, wherein, A film cutting mechanism (700) is installed on the frame (100), which is located between the wrapping station (B) and the unloading station (C); the film cutting mechanism (700) cuts the packaging film after the wrapping is completed.

6. The three-station coiled tubing machine of claim 1, wherein, The three-station turntable (200) includes a turntable body (210), a revolution drive assembly (220), and a positioning and locking assembly (230). The turntable body (210) is rotatably mounted on the frame (100), and the three coiling mechanisms (300) are distributed on the turntable body (210) in a circumferential direction; the output end of the revolution drive assembly (220) drives the turntable body (210) to rotate, thereby enabling the three coiling mechanisms (300) to switch between the coiling station (A), the wrapping station (B), and the unloading station (C); The positioning and locking assembly (230) is installed on the frame (100) and locks the turntable body (210) in position when the three coil mechanisms (300) correspond to the three workstations respectively.

7. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 1, characterized in that, Each set of coil mechanisms (300) includes a coil rotation power assembly (310), a coil power shaft (320), a plurality of coil grippers (330), multiple sets of baffle assemblies (340), a membrane clamping assembly (350), and a tube clamping assembly (360). The coil rotation power assembly (310) is mounted on the turntable body (210) and is connected to the coil power shaft (320) to drive the corresponding coil mechanism (300) to rotate. The coil power shaft (320) is rotatably mounted on the three-position turntable (200) via bearings. The output end of the coil self-rotation power assembly (310) is connected to the coil power shaft (320) to drive the coil power shaft (320) to rotate. A plurality of the aforementioned coil grippers (330) are circumferentially distributed and mounted on the coil drive shaft (320) and extend axially; a bellows is coiled on the outer surface of the coil grippers (330); Multiple sets of the baffle assemblies (340) are circumferentially distributed and installed on the coil power shaft (320); each set of the baffle assembly (340) includes a fixed baffle (341), a sliding baffle (342), a baffle connector (343), and a radial telescopic guide structure (344). The baffle connector (343) extends along an axial direction parallel to the coil power shaft (320); the fixed baffle (341) and the sliding baffle (342) are respectively installed and connected to the baffle connector (343), the fixed baffle (341) is fixedly connected to one end of the baffle connector (343), and the sliding baffle (342) is slidably connected to the other end of the baffle connector (343), and its sliding direction is parallel to the axial direction of the coil power shaft (320); The radial telescopic guide structure (344) is installed on the coil power shaft (320), and its moving end is fixedly connected to the baffle connector (343), which drives the baffle connector (343) to move along the radial direction of the coil power shaft (320) along with the fixed baffle (341) and the sliding baffle (342). The film clamping assembly (350) is mounted at the bottom end of the coil gripper (330), which fixes the starting end of the packaging film. The tube clamp assembly (360) is mounted at the bottom of another tube clamping plate (330), which secures the head of the bellows.

8. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 4, characterized in that, The pipe laying mechanism (600) also includes a pipe laying sleeve (620), a plurality of guide wheel (630) and a lateral movement assembly (640). The tube sleeve (620) is for the corrugated pipe to pass through, the discharge end of the tube sleeve (620) extends to the inlet end of the coil mechanism (300) located at the coil station (A), and the discharge direction of the tube sleeve (620) is tangent to the rotation direction of the coil mechanism (300). The tube sleeve (620) is connected to a swing assembly (650), which drives the tube sleeve (620) to swing in a plane perpendicular to the rotation axis of the coiling mechanism (300), so that the discharge end of the tube sleeve (620) always fits against the outer surface of the coil during the coiling process. A plurality of the aforementioned guide rollers (630) are arranged in pairs, and a guide roller groove (631) is formed between the two pairs of the guide rollers (630) to guide the bellows into the pipe sleeve (620) along a predetermined path; The moving end of the transverse component (640) is equipped with the pipe sleeve (620) and a plurality of the guide rollers (630), and drives the pipe sleeve (620) and the plurality of the guide rollers (630) to reciprocate along a direction parallel to the rotation axis of the coil mechanism (300), thereby uniformly arranging the bellows on the coil mechanism (300).

9. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 1, characterized in that, The automatic wrapping mechanism (400) includes a wrapping support (410), a film supply assembly (420), and a wrapping drive assembly (430). The film supply assembly (420) supplies packaging film to the coiled corrugated tube located at the wrapping station (B); The film-wrapping drive assembly (430) is mounted on the film-wrapping bracket (410) and drives the film-supply assembly (420) to move relative to the film-wrapping bracket (410) to wrap the packaging film around the outer surface of the roll corrugated tube.

10. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 9, characterized in that, The film supply assembly (420) includes a film roller assembly (421), a tensioning assembly (422), and a film breakage detection assembly (423). The film roller assembly (421) packages the film roll and delivers the packaging film to the wrapping station (B); The tensioning component (422) adjusts the tension of the packaging film during transport; The film breakage detection component (423) detects whether the packaging film is broken.

11. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 9, characterized in that, The wrapping drive assembly (430) includes a translation drive structure (431) and a swing drive structure (432), which are respectively mounted on the wrapping bracket (410); The translation drive structure (431) drives the film supply assembly (420) to reciprocate in a direction parallel to the rotation axis of the coil mechanism (300), so that the width of the packaging film can cover the axial length range of the rolled corrugated tube. The swing drive structure (432) drives the film supply assembly (420) to swing in the plane so that the packaging film wraps around the two end faces of the roll corrugated tube.

12. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 9, characterized in that, The automatic film wrapping mechanism (400) also includes an air knife film feeding assembly; The air knife film feeding assembly is installed on the film wrapping bracket (410). At the start of the film wrapping process, the starting end of the packaging film is blown by airflow to the coil mechanism (300) located at the film wrapping station (B) so that the coil mechanism (300) can hold the starting end of the packaging film.

13. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 9, characterized in that, The automatic wrapping mechanism (400) also includes a film pressing assembly (440), which is mounted on the wrapping bracket (410) to press the packaging film onto the surface of the rolled corrugated tube.

14. The three-station coiling machine for automatic wrapping and unloading of corrugated pipes according to claim 1, characterized in that, The automatic unloading mechanism (500) includes an unloading push plate (510) and a clamping push plate (520); The unloading push plate (510) and the clamping push plate (520) can reciprocate along the rotation axis of the coil mechanism (300) parallel to the unloading station (C); The unloading push plate (510) pushes out the coiled corrugated tube with the packaging film wrapped on it from the coil mechanism (300) of the unloading station (C), and pushes it against the clamping push plate (520) to clamp it. At the same time, the unloading push plate (510) exits the coil mechanism (300), the clamping push plate (520) is released, and the coiled corrugated tube rolls down to the material picking position.

Images