Profile coating production line

By designing a profile coating production line, the problems of slow production speed, low efficiency, and high cost in traditional processes have been solved. It has achieved efficient and continuous coating of composite profiles and coating materials, enhanced the bonding strength, made it suitable for the production of large components, reduced equipment costs, and improved the performance and comfort of the profiles.

CN224089609UActive Publication Date: 2026-04-07TIANJIN GUOXIN RUBBER & PLASTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional automotive reinforcement and damping component manufacturing processes suffer from slow production speed, low efficiency, high equipment cost, poor mechanical properties, unsuitability for large component molding, and high production costs. Furthermore, they are prone to peeling, making it difficult to meet the demands of modern industry for efficient production and high-performance components.

Method used

A profile coating production line was designed, including systems for profile feeding, pretreatment, traction, preheating, extrusion of coating material, cooling and shaping, online splitting and collection and stacking. The system is automated through computer control, which ensures efficient and continuous coating of composite profiles and coating materials, enhances the bonding strength, and achieves low material consumption and reuse.

Benefits of technology

It enables high-speed continuous coating of composite profiles and coating materials, with low equipment cost, good mechanical properties, and is suitable for the production of large components. It enhances the bonding strength between the profile and the coating material, reduces production costs, and ensures that the coated profiles foam and fill the installation gaps under the action of electrophoretic heating through pretreatment and cooling shaping system, which plays a role in strengthening, lightening, shock absorption and improving driving comfort.

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Abstract

The utility model belongs to the technical field of injection molding products, and particularly relates to a sectional material coating production line which is used for coating a coating rubber material in a molten state in a coating groove of a composite material sectional material. Comprising a sectional material feeding system, a pretreatment system, a sectional material continuing system, a sectional material traction system, a sectional material preheating system, a coating rubber material extrusion system, a rubber material coating mold system, a cooling and shaping system, an online sectional material splitting system, a collecting and stacking system and a connecting piece recycling system which are connected in sequence. According to the utility model, through the cooperative operation of all the systems, the online high-speed continuous coating of the composite material section and the coating rubber material is realized, the production speed is high, the efficiency is high, and compared with the traditional secondary injection molding process, the equipment cost is low, the mechanical property is good, and the equipment is suitable for the production of large components.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to production line technical field, concretely relates to a section bar coating production line. BACKGROUND

[0002] In the field of automobile manufacturing, unmanned aerial vehicle manufacturing and aerospace, realizing lightweight and improving driving comfort become important development trend, and the manufacturing process of related reinforcing member and damping member directly influences the achievement of this target. The process of traditional automobile reinforcing member damping member is adopting secondary injection molding, that is, first injection molding nylon framework, and then secondary injection molding coating material, and this process has obvious defects such as slow production speed, low efficiency, high equipment cost, poor mechanical property, not suitable for large component forming, high production cost and easy peeling, and has been difficult to meet the demand of modern industry to high-efficiency production and high-performance component. SUMMARY

[0003] The utility model discloses a section bar coating production line to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a section bar coating production line,

[0005] The production line is used for coating the coating material in the molten state in the coating groove of the composite material section bar, and is connected with the section bar feeding system, the pretreatment system (gluing / release cloth stripping / polishing), the section bar continuation system, the section bar traction system, the section bar preheating system, the coating material extrusion system, the glue coating die system, the cooling and shaping system, the section bar online disassembly system, the collection and stacking system and the connecting piece recycling system in sequence, and wherein:

[0006] The section bar feeding system is mechanically connected with the operation platform of the pretreatment system through the machine hand and is used for transferring the section bar;

[0007] The gluing / release cloth stripping / polishing device in the pretreatment system is connected with the traction path of the section bar traction system through the working condition switching mechanism;

[0008] The front and rear traction devices of the section bar traction system are rigidly connected with the section bar through the traction clamp and are linked with the output end of the section bar continuation system through the transmission mechanism;

[0009] The hopper of the coating material extrusion system is connected with the feeding port of the extruder through the feeding machine, and the discharging port of the extruder is sealingly connected with the flow channel of the glue coating die system;

[0010] The water spraying device and the air cooling device of the cooling and shaping system are sequentially arranged along the section bar conveying path and are communicated with the circulating water system and the air cooling system through the pipeline;

[0011] The cutting device of the profile online disassembly system is connected with the storage rack of the collecting and stacking system through a conveying belt, the recovery device of the connecting piece recovery system is connected with the connecting piece storage rack of the profile continuation system through a conveying device;

[0012] The entire production line is connected with electrical components of each system through a computer control system to realize automatic operation.

[0013] Preferably, the profile feeding system comprises a raw material rack, a robot, an operation platform and a video detection system, wherein the mechanical arm of the robot is installed above the raw material rack and the operation platform through a sliding rail, the video detection system is fixed on the side of the operation platform and is electrically connected with the computer control system for monitoring the position of the profile.

[0014] Preferably, in the pretreatment system, the binder coating machine of the glue coating system is connected with the binder feeder through a glue conveying pipeline, and the coating pressurizing system is pneumatically connected with the nozzle of the coating machine; the robot of the release cloth stripping system is matched with the profile fixing rack through a jaw mechanism, and the blowing dust removal device is communicated with the storage box through an air pipe; the grinder of the polishing system is installed above the profile fixing support through a cantilever support, and the dust removal system is connected with the working area of the grinder through a dust suction pipeline.

[0015] Preferably, the profile support rack of the profile continuation system is fixedly connected with the operation platform through bolts, and the end effector of the robot is provided with a connecting head clamp for grabbing the connecting head and fixing the segmented profile, and the connecting head and the connecting port of the profile are matched through a clamping groove structure.

[0016] Preferably, the front and rear traction devices of the profile traction system each comprise a traction roller group driven by a servo motor, the profile is clamped on both sides by a spring collet structure through a traction clamp, and the automatic control system monitors the rotation speed of the traction roller through an encoder and synchronously adjusts the traction force of the front and rear traction devices.

[0017] Preferably, the infrared heating device of the profile preheating system is fixed on both sides of the equipment rack through a support, a protective heat shield is wrapped around the heating area and is electrically connected with the temperature sensor of the temperature control system, and the temperature control system adjusts the heating power through a PID control algorithm.

[0018] Preferably, the extruder cylinder of the coated material extrusion system is provided with a heating ring and a screw, the heating ring is electrically connected with the temperature control system, the cooling pipeline of the cooling water system is wound outside the cylinder, and the material hopper and the feeding machine are connected through a sealed material pipe to prevent particle leakage.

[0019] Preferably, the mold of the rubber coating mold system is fixed on the frame by a mold support, the mold adjusting system comprises adjusting bolts and guide columns for fine adjustment of the relative position of the mold and the profile coating groove, the heating rod of the temperature control system is embedded in the mold, and the material recycling system collects the overflowed rubber through a waste groove.

[0020] Preferably, the water spraying device of the cooling and shaping system is arranged below the mold outlet and controlled by a solenoid valve; the air cooling device comprises a fan and a wind deflector arranged along the profile conveying direction; the water tank of the circulating water system is connected with the water spraying device through a water pump, and the air knife of the water removal device and the hot air fan of the drying system are arranged in series.

[0021] Preferably, the machine hand of the profile online disassembly system is positioned at the connector position through a visual recognition system, the saw blade of the cutting system is installed vertically to the profile conveying direction; the video monitoring device of the collection and stacking system is arranged above the storage rack and connected with the computer control system for detecting the coating quality; the conveying device of the connector recycling system is a belt conveyor, the input end of which is connected with the disassembly station, and the output end extends to the connector storage area of the profile splicing system.

[0022] The utility model discloses a beneficial effect is: the utility model discloses the coordinated operation of each system, realizes the online high -speed continuous coating of composite material profile and coating rubber, has the characteristics such as fast production speed, high efficiency, compared with traditional secondary injection molding process, and the equipment cost is low and the mechanical property is good, is suitable for large -scale component production, and simultaneously through the pretreatment system (gluing / release cloth peeling / polishing) strengthens the adhesion firmness of profile and rubber, and profile preheating system drier binder, releases the stress in profile, and the cooling and shaping system ensures that the molten rubber solidifies quickly, and the online disassembly and recycling system realizes the low consumption of material and the reuse of connector, finally makes the profile after coating under the action of electrophoresis heat foaming filling installation gap, plays the role of enhancement, light weight, shock attenuation, sound insulation and improvement driver's comfort, and comprehensively overcomes the defects such as slow production, high cost and easy peeling of traditional process. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 It is the plan view of the utility model. CONCRETE EMBODIMENT

[0025] In the description of the present disclosure, it needs to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0026] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0027] In the description of the present disclosure, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, or it can be communicatively connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0028] The specific implementation of the present utility model will be described in detail below in combination with the drawings and preferred embodiments.

[0029] As shown in Figure 1 and Figure 2 A profile coating production line, the production line is used for coating the coating material in a molten state in the coating groove of the composite material profile, comprising profile feeding system 1, pretreatment system 2 (gluing / release cloth stripping / polishing) connected in turn, profile continuation system 3, profile traction system 4, profile preheating system 5, coating material extrusion system 6, coating material coating mold system 7, cooling and shaping system 8, profile online splitting system 10, collecting and stacking system 11 and connecting piece recycling system 12;Among them:

[0030] The profile feeding system is mechanically connected with the operation platform of the pretreatment system by a robot hand, which is used for transferring the profile;

[0031] The gluing / release cloth stripping / polishing device in the pretreatment system is connected with the traction path of the profile traction system through the working condition switching mechanism;

[0032] The front and rear traction devices of the profile traction system are rigidly connected with the profile through the traction clamps and are linked with the output end of the profile connection system through the transmission mechanism.

[0033] The hopper of the rubber coating extrusion system is connected with the feeding port of the extruder through the feeding machine, and the discharge port of the extruder is sealingly connected with the flow channel of the rubber coating mold system.

[0034] The water spraying device and the air cooling device of the cooling and shaping system are arranged along the profile conveying path in sequence and are communicated with the circulating water system and the air cooling system through pipes.

[0035] The cutting device of the profile online disassembly system is connected with the storage rack of the collection and stacking system through the conveyor belt, and the recovery device of the connecting piece recovery system is butted with the connecting piece storage rack of the profile connection system through the conveying device.

[0036] The entire production line is communicatively connected with the electrical components of each system through the computer control system to realize automatic operation.

[0037] The profile feeding system 1 mainly places the composite material profile that has passed the detection on the operation platform through the robot hand and ensures that the profile direction and position meet the coating requirements through the video monitoring system. The system includes a raw material rack, a robot hand, an operation platform, a video detection system, etc.

[0038] The pretreatment system 2 includes a profile gluing system, a profile release cloth stripping system, and a profile polishing system, which are equipment components under three working conditions to adapt to different working conditions. The three systems are interchangeable.

[0039] (1) The profile gluing system is mainly used for uniformly brushing the adhesive solution of the bonding coating rubber on the bottom of the composite material profile coating groove to ensure that the profile and the coating material are firmly bonded. The system includes an adhesive coating machine, an adhesive feeder, a coating pressure system, a coating operation platform, a profile support, etc.

[0040] (2) The profile release cloth stripping system is mainly used for removing the release cloth at the bottom of the profile coating groove, increasing the roughness and contact area of the bottom of the coating groove, and ensuring that the composite material profile and the coating material are firmly bonded. The system includes a profile fixing rack, a robot hand, a blowing and dust removal device, an operation platform, a storage box, a control system, etc.

[0041] (3) The profile coating groove polishing system is mainly used for polishing the surface of the profile coating groove, increasing the roughness and contact area of the bottom of the coating groove, and ensuring that the composite material profile and the coating material are firmly bonded. The system includes a profile fixing support, a polishing machine, a robot hand, an operation platform, a dust removal system, a control system, etc.

[0042] The profile continuation system 3 mainly connects the composite material profiles of a certain length into a long enough component through the connectors, so as to facilitate the continuous operation of the subsequent process of the composite material, and the operation process is completed by the robot hand; the system comprises a profile support frame, a connector, a robot hand, an operation platform, a control system and the like.

[0043] The profile coating area limitation is mainly used for coating the coating material in the required range, and the project mainly predefines the coating groove on the profile surface, and ensures that the coating material in the coating groove can fill the installation gap between the sheet metal under the action of electrophoresis heat, so as to ensure that the sheet metal and the reinforcing profile are connected into a whole.

[0044] The profile traction system 4 is mainly used for continuously feeding the composite material profiles connected into a whole into the coating mold, so as to ensure the continuous coating process without interruption, and prevent material waste and affect the coating efficiency caused by interruption of coating; the system comprises an equipment rack, a front traction device, a rear traction device, a traction clamp, an automatic control system and the like.

[0045] The profile preheating system 5 is mainly used for the functions of drying the adhesive of the profile coating groove, preheating the surface of the profile coating groove, releasing the internal stress of the profile, and reducing the thermal expansion and contraction coefficient of the profile; the system comprises an equipment rack, an infrared heating device, a protective heat shield, a temperature control system and the like.

[0046] The coating material extrusion system 6 is mainly used for heating the coating material to a molten state, and maintaining a certain pressure and fluidity to meet the requirements of the profile coating; the system comprises a hopper, a feeding machine, an extruder, a rack, a temperature control system, a cold water system, a control system and the like.

[0047] The profile coating material mold system 7 is mainly used for coating the molten coating material in the profile coating groove, so as to ensure that the coating material in the coating groove meets the thickness and width requirements of the process; the system comprises a mold support, a mold, a mold adjusting system, a material recycling system, a temperature control system, a control system and the like.

[0048] The cooling and shaping system 8 is mainly used for the functions of rapidly cooling and fixing the molten coating material in the profile coating groove, and preventing the coated coating material from falling off during the operation process; the system comprises a water spraying device, an air cooling device, an air cooling system, a circulating water system, a water removal device, a drying system, a control system and the like.

[0049] The online profile disassembly system 10 is mainly used for disassembling the coated profile according to the position of the connector, and cutting the profile into the required size in the cutting system; the system comprises a robot hand, a cutting system, a dust removal system, an operation platform, a control system and the like.

[0050] The collecting and stacking system 11 is mainly used for detecting whether the coated profile is qualified and collecting and stacking according to the requirements; the system comprises an operation platform, a robot, a video monitoring system, a goods storage rack and the like.

[0051] The connecting piece recycling system 12 is mainly used for checking and transporting the disassembled connecting pieces to the profile extension process for standby; the operation system comprises a recycling device, a conveying device, a video detection system, a control system and the like.

[0052] The specific working principle is as follows:

[0053] I. Profile pretreatment and extension principle

[0054] Loading and direction positioning: the profile loading system 1 grabs the composite material profile from the raw material rack by the robot and places it on the operation platform; the video detection system monitors the profile direction and position through image recognition technology to ensure that the coated groove is oriented according to the process requirements.

[0055] Surface treatment enhances adhesion: according to the surface state of the profile, the pretreatment system selects the glue coating, release cloth stripping or polishing operation through the working condition switching mechanism:

[0056] The glue coating system 2 applies glue to the bottom of the coated groove through the adhesive coating machine; the adhesive feeder and the coating pressurization system cooperatively control the uniformity of the glue;

[0057] The release cloth stripping system 2 strips the release cloth at the bottom of the coated groove by the robot; the dust removal device removes the waste to increase the surface roughness;

[0058] The polishing system 2 roughens the surface of the coated groove by the polishing machine; the dust removal system collects the debris; all the three ways enhance the adhesion between the profile and the glue.

[0059] Profile extension to extend the operation length: the profile extension system 3 grabs the connecting head by the robot, connects and extends the segmented profile on the support frame through the clamping groove structure to form a continuous long profile, solving the problem of discontinuous production of short profiles in the traditional process.

[0060] II. Traction, preheating and glue extrusion principle

[0061] Constant force traction continuous conveying: the front traction device 4 and the rear traction device 9 of the profile traction system clamp the profile through the spring collet clamp; the servo motor drives the traction roller group to convey the profile with constant traction force; the encoder monitors the traction speed in real time to prevent the profile from breaking or slipping off, ensuring the continuity of the coating process.

[0062] Preheating stress relief and drying: The profile preheating system 5 heats the cladding groove area through infrared heating devices, the protective heat shield reduces heat loss, and the temperature control system adjusts the heating power through the PID algorithm to realize the drying of the adhesive, the preheating of the profile surface, and the release of internal stress, thereby reducing the influence of thermal expansion and cold contraction on the cladding precision.

[0063] Melt and pressure control of the rubber compound: The cladding rubber compound extrusion system 6 transports the granules from the hopper to the extruder through the feeding machine, the heating coil in the cylinder melts the rubber compound, the screw rotation provides conveying pressure, and the cold water system adjusts the cylinder temperature to ensure that the molten rubber compound maintains constant fluidity and pressure, thereby providing conditions for subsequent accurate cladding.

[0064] III. Cladding, cooling, and disassembly and recycling principles

[0065] Accurate control of cladding form by the mold: After the molten rubber compound is output from the extruder, it is guided through the flow channel of the rubber compound cladding mold system 7, uniformly filled into the profile cladding groove, the mold adjustment system adjusts the position of the mold through the adjusting screw and guide column, controls the thickness and width of the cladding rubber compound, and the temperature control system maintains the mold temperature to ensure the molding precision of the rubber compound. The waste tank recycles the overflowed rubber compound to reduce material waste.

[0066] Multi-stage cooling and rapid shaping: The molten rubber compound after cladding enters the cooling and shaping system 8 along with the profile, the water flow is controlled by the electromagnetic valve to preliminarily cool the rubber compound, and the circulating water system recycles the water body for reuse; the fan and the air deflector of the air cooling device form forced convection to accelerate the solidification of the rubber compound; the air knife and the hot air blower of the water removal device combination dry the surface of the profile to prevent the rubber compound from falling off during transportation, thereby realizing the rapid combination of the rubber compound and the profile.

[0067] Disassembly, detection, and recycling: The cooled continuous profile is positioned by the machine hand of the online disassembly system 10 through visual recognition of the connector position, then disassembled and cut to the specified size by the cutting system, and the dust removal system cleans the debris; the collection and stacking system 11 detects the cladding quality and cutting size through the video monitoring device, the qualified products are placed into the storage rack by the machine hand, the connector recovery system 12 collects the disassembled connectors, and after passing the video detection, returns to the splicing system through the conveying device for repeated use, thereby realizing low consumption and recycling of materials.

[0068] It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered within the scope of protection of the present application.

Claims

1. A profile coating production line, characterized in that: The production line is used to coat molten coating compound into the coating tank of composite profiles, and includes a profile feeding system (1), a pretreatment system (2), a profile splicing system (3), a profile traction system, a profile preheating system (5), a coating compound extrusion system (6), a coating compound die system (7), a cooling and shaping system (8), a profile online splitting system (10), a collection and stacking system (11), and a connector recycling system (12), connected in sequence; wherein: The profile feeding system (1) is mechanically connected to the operating platform of the pretreatment system via a robotic arm and is used to transfer profiles; The adhesive / release cloth peeling / sanding device in the pretreatment system is connected to the traction path of the profile traction system through the working condition switching mechanism; The front traction device (4) and rear traction device (9) of the profile traction system are rigidly connected to the profile through traction clamps and linked to the output end of the profile splicing system (3) through a transmission mechanism; The hopper of the coating compound extrusion system (6) is connected to the feed port of the extruder via a feeder, and the discharge port of the extruder is sealed to the flow channel of the coating compound mold system (7). The water spraying device and air cooling device of the cooling and shaping system (8) are arranged sequentially along the profile conveying path and are connected to the circulating water system and air cooling system through pipelines. The cutting device of the profile online splitting system (10) and the storage rack of the collection and stacking system (11) are connected by a conveyor belt, and the recycling device of the connector recycling system (12) and the connector storage rack of the profile splicing system (3) are connected by a conveyor device. The entire production line is connected to the electrical components of each system through a computer control system, enabling automated operation.

2. The profile coating production line according to claim 1, characterized in that: The profile feeding system (1) includes a raw material rack, a robot arm, an operating platform and a video detection system. The robotic arm is mounted on the raw material rack and the operating platform via a slide rail. The video detection system is fixed to the side of the operating platform and electrically connected to the computer control system for monitoring the profile position.

3. The profile coating production line according to claim 1, characterized in that: In the pretreatment system, the adhesive coating machine of the glue coating system is connected to the adhesive feeder through the glue conveying pipe, and the coating pressurization system is pneumatically connected to the coating machine nozzle; the robot arm of the release cloth peeling system cooperates with the profile fixing frame through the gripper mechanism, and the blowing and dust removal device is connected to the storage box through the air duct; the grinding machine of the grinding system is installed above the profile fixing frame through the cantilever bracket, and the dust removal system is connected to the working area of ​​the grinding machine through the dust suction pipe.

4. The profile coating production line according to claim 1, characterized in that: The profile support frame of the profile splicing system (3) is fixedly connected to the operating platform by bolts. The end effector of the robot arm is equipped with a connector clamp for gripping the connector and fixing the segmented profiles together. The connector and the connection port of the profile are matched by a slot structure.

5. The profile coating production line according to claim 1, characterized in that: The front traction device (4) and rear traction device (9) of the profile traction system both include traction roller groups driven by servo motors. The traction clamp holds both sides of the profile through a spring clamp structure. The automatic control system monitors the rotation speed of the traction rollers through an encoder and synchronously adjusts the traction force of the front and rear traction devices (4, 9).

6. The profile coating production line according to claim 1, characterized in that: The infrared heating device of the profile preheating system (5) is fixed to both sides of the equipment frame by a bracket. The protective heat insulation cover wraps the heating area and is electrically connected to the temperature sensor of the temperature control system. The temperature control system adjusts the heating power through a PID control algorithm.

7. The profile coating production line according to claim 1, characterized in that: The extruder barrel of the coating rubber extrusion system (6) is equipped with a heating coil and a screw. The heating coil is electrically connected through a temperature control system. The cooling pipe of the cold water system is wrapped around the outside of the barrel. The hopper and the feeder are connected by a sealed material pipe to prevent the granules from leaking.

8. The profile coating production line according to claim 1, characterized in that: The mold of the adhesive coating mold system (7) is fixed on the frame by a mold bracket. The mold adjustment system includes adjusting bolts and guide columns for fine-tuning the relative position of the mold and the profile coating groove. The heating rod of the temperature control system is embedded inside the mold. The material recycling system collects the overflow adhesive through the waste tank.

9. The profile coating production line according to claim 1, characterized in that: The water spraying device of the cooling and shaping system (8) is located below the mold outlet and the water flow is controlled by a solenoid valve; the air cooling device includes a fan and an air guide shroud, which are arranged along the profile conveying direction; the water tank of the circulating water system is connected to the water spraying device pipeline through a water pump, and the air knife of the dewatering device and the hot air fan of the drying system are arranged in series.

10. The profile coating production line according to claim 1, characterized in that: The robotic arm of the profile online splitting system (10) locates the position of the connector through a vision recognition system, and the saw blade of the cutting system is installed perpendicular to the profile conveying direction; the video monitoring device of the collection and stacking system (11) is set above the storage rack and is connected to the computer control system for detecting the wrapping quality; the conveying device of the connector recycling system (12) is a belt conveyor, whose input end is connected to the splitting station and whose output end extends to the connector storage area of ​​the profile splicing system (3).