A fixed type ingot coating device

Abstract

The utility model provides a fixed ingot coating equipment for the surface of metal ingot after milling surface processing is coated, the coating equipment is with the coating machine fixed in the ingot conveying equipment, and the coating machine includes PLC control system, the synchronous membrane mechanism of area mechanism of film warehouse mechanism still includes the pressing mechanism for having covered the film material pressure, the film cutting mechanism for having covered the film material from the film warehouse mechanism cut, when carrying out ingot coating, the film warehouse mechanism is lifted through the lifting mechanism and is lifted to adapt the ingot thickness, and the synchronous membrane mechanism is measured with the pressing wheel ingot moving speed, controls the film material release speed according to the ingot moving speed to make its film material release length can adapt the surface of the ingot to be coated, the utility model discloses stable structure, high synchronous precision, and good coating quality.

Description

Technical Field

[0001] This utility model relates to the field of metal ingot post-processing technology, and in particular to a fixed ingot coating equipment, which is a fixed equipment for automatically coating the surface of metal ingots after milling and its working method. Background Technology

[0002] After milling, metal ingots have extremely smooth surfaces, making them highly susceptible to absorbing dust during subsequent transportation and storage, which can affect product quality. Currently, the coating process for exported ingots is mostly done manually, which results in low efficiency, high labor costs, and uneven coating quality.

[0003] While there are some examples of automated equipment, most employ a mobile rack structure, where the entire coating rack moves along a track to follow the ingot for coating. Although this approach achieves a degree of automation, its inherent drawbacks are quite significant: First, it requires extremely high levels of levelness and load-bearing capacity in the equipment foundation; second, the mobile rack structure is complex, resulting in poor long-term operational stability and a high failure rate; and finally, the mobile rack also poses certain safety hazards.

[0004] Therefore, there is an urgent need in this field for a fixed coating solution that is structurally stable, requires no overall movement, has high coating accuracy, and is safe and reliable. Utility Model Content

[0005] This invention proposes a fixed ingot coating equipment with stable structure, high synchronization accuracy, and good coating quality.

[0006] The present invention adopts the following technical solution.

[0007] A fixed ingot coating equipment is used to coat the surface of a metal ingot after milling. The coating equipment is a coating machine fixed at the ingot conveying equipment. The coating machine includes a PLC control system, a synchronous film feeding mechanism with a film hopper mechanism, a pressing mechanism for applying pressure to the coated film, and a cutting mechanism for cutting the coated film from the film hopper mechanism. When coating the ingot, the film hopper mechanism is raised and lowered by a lifting mechanism to adapt to the thickness of the ingot. The synchronous film feeding mechanism measures the ingot moving speed with a pressing wheel and controls the film feeding speed according to the ingot moving speed so that the length of the film fed can adapt to the surface of the ingot to be coated.

[0008] The ingot conveying equipment is a conical roller conveyor; when the roller conveyor delivers the ingot to the inlet of the coating machine, the pressing roller of the synchronous film feeding mechanism is engaged and rotates with the conical roller of the roller conveyor. The PLC control system uses an encoder connected to the pressing roller to detect the angular velocity of the pressing roller in real time.

[0009] The synchronous film-laying mechanism includes an encoder mounted on a swing arm; when ingot coating is performed, the synchronous film-laying mechanism drives the swing arm with a cylinder, causing the pressing roller at the encoder shaft end to press against the surface of the running conical roller; the encoder transmits the detected angular velocity signal of the pressing roller. The data is transmitted to the PLC control system.

[0010] The PLC control system calculates the linear velocity of the tapered roller conveyor by the angular velocity of the pressure roller, and performs roller conveyor linear velocity compensation calculation in combination with the ingot width.

[0011] The membrane storage mechanism includes one or more membrane storage units, with different membrane storage units used to store membrane rolls of different specifications; the membrane roll rack of each membrane storage unit can be pulled outward to replace the membrane roll.

[0012] The preferred membrane chamber structure consists of three membrane chamber units: A, B, and C.

[0013] The membrane storage unit includes a membrane roll holder, a membrane guide rod, a membrane unloading power roller, a constant tension controller, and a plastic film guide frame;

[0014] The membrane material is a plastic film, which is stored in the membrane roll unit of the membrane warehouse mechanism of the synchronous membrane feeding mechanism in the form of a membrane roll. The membrane material output from the membrane roll is connected to the membrane feeding power roller of the synchronous membrane feeding mechanism through the membrane material path formed by the guide rod and the plastic film guide frame.

[0015] The film feeding motor of the synchronous film feeding mechanism drives the film feeding power roller to rotate, and guides the film material to the ingot conveying surface of the ingot conveying equipment;

[0016] The constant tension controller is installed on the shaft fixed end of the membrane roll. The constant tension controller includes a magnetic powder brake that can adjust the resistance applied to the membrane roll according to a preset tension value.

[0017] The synchronous film feeding mechanism adjusts its operating conditions according to the speed of the conical roller conveyor to synchronize the film feeding speed of the synchronous film feeding mechanism with the linear speed of the roller conveyor.

[0018] The pressing mechanism includes a pressing roller. Springs on both sides of the pressing mechanism provide downward pressure to the pressing roller to apply pressure to the film material on the surface of the ingot. When the lifting mechanism descends and the pressing roller contacts the surface of the ingot, the lifting mechanism continues to descend to compress the spring. When the lifting mechanism descends to the set position and triggers the proximity switch, the lifting mechanism stops descending.

[0019] The film cutting mechanism includes a cutting groove and a film cutting blade driven by a film cutting cylinder. The film cutting blade is a pneumatic cutter installed at the outlet of the film hopper. After the ingot is coated, the film cutting blade cuts the film material to separate the coating from the film hopper unit.

[0020] The lifting mechanism includes a frame, which is used to drive the membrane chamber mechanism to lift vertically to accommodate ingots of different thicknesses.

[0021] The lifting mechanism includes a hydraulic station, a synchronous linkage mechanism, and a laser sensor; the PLC control system is connected to the laser sensor to detect the height of the frame.

[0022] The synchronous linkage mechanism is driven by dual hydraulic cylinders of the hydraulic station, and a precision synchronous shaft is used to ensure that the lifting and lowering of both sides of the frame are synchronized to avoid the frame from tilting.

[0023] This utility model proposes a fixed ingot coating equipment, belonging to the field of metal processing equipment technology. This equipment is used for coating the surface of milled metal ingots. During the coating process, constant tension control and high-precision synchronous film feeding ensure flat adhesion of the film material and avoid secondary contamination. The equipment includes a fixed frame, a lifting mechanism, a film hopper mechanism, a synchronous film feeding mechanism, a pressing mechanism, and a film cutting mechanism. The working method involves adjusting the height of the film hopper according to the ingot thickness using the lifting mechanism; using the pressing roller to detect the linear speed of the conical roller conveyor and performing speed compensation calculations based on the ingot width to achieve high-precision synchronization between the film feeding motor and the roller conveyor; using the pressing roller to elastically press against the ingot surface during the coating process to ensure coating quality; and finally, the film cutting mechanism completes the film cutting. This utility model solves the problems of high foundation requirements, poor stability, and high failure rate of mobile frame-type coating equipment, achieving full automation of the coating process, which is efficient, reliable, and safe. Attached Figure Description

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] Appendix Figure 1 This is a schematic diagram of the lifting mechanism of the synchronous film-laying system of this utility model;

[0026] Appendix Figure 2 This is a schematic diagram of step two, pre-dispensing the membrane (dispensing the membrane material to a preset length), in an embodiment of this utility model.

[0027] Appendix Figure 3 This is a schematic diagram of step three, synchronous film coating, and step four, outlet pressing, in an embodiment of this utility model.

[0028] Appendix Figure 4 This is a schematic diagram of step six, cutting the membrane material, in an embodiment of this utility model;

[0029] Appendix Figure 5 This is a schematic diagram of the membrane chamber mechanism of this utility model;

[0030] Appendix Figure 6 This is a schematic diagram of the tension control of the membrane chamber mechanism in the embodiment;

[0031] Appendix Figure 7 This is a schematic diagram of the installation of the constant tension controller in the embodiment;

[0032] Appendix Figure 8 This is a schematic diagram of the lifting mechanism in the embodiment;

[0033] Appendix Figure 9 This is a schematic diagram of the installation of the membrane chamber unit within the membrane chamber mechanism in the embodiment;

[0034] Appendix Figure 10 This is a schematic flowchart of the coating process in the embodiment;

[0035] In the diagram: 1-Synchronous film feeding mechanism; 2-Lifting mechanism; 3-Pressure mechanism; 4-Film cutting mechanism; 5-Film roll; 6-Film roll holder; 7-Film cutting cylinder; 8-Guide rod; 9-Filling power roller; 10-Plastic film guide frame; 11-Film cutter; 12-Pressure roller; 13-Hydraulic station; 14-Filling motor; 15-Constant tension controller; 16-Laser sensor; 17-Synchronous linkage mechanism;

[0036] A1 - Dispensing position after receiving signal; A2 - Dispensing position at start; A3 - Plastic film covering ingot scene; A4 - Ingot; A5 - Plastic film cutting scene; A6 - Pulley; A7 - Track; A8 - Film cutting knife holder; A9 - Pressing roller + antistatic cloth; A10 - Film cutting auxiliary knife; A11 - Film cutting auxiliary knife groove; A12 - Pressing limit; A13 - Tension controller; A14 - Magnetic powder brake; A15 - Guide rod (tension sensor); A16 - Film dispensing power roller (servo motor); A17 - Film hopper moving end; A18 - Anti-collision limit switch; A19 - Inlet detection photoelectric sensor; A20 - Outlet detection photoelectric sensor; A21 - A film; A22 - B film; A23 - C film. Detailed Implementation

[0037] As shown in the figure, a fixed ingot coating equipment is used to coat the surface of a metal ingot after milling. The coating equipment is a coating machine fixed at the ingot conveying equipment. The coating machine includes a PLC control system, a synchronous film feeding mechanism 1 with a film hopper mechanism, a pressing mechanism 3 for applying pressure to the coated film, and a cutting mechanism 4 for cutting the coated film from the film hopper mechanism. When coating the ingot, the film hopper mechanism is raised and lowered by the lifting mechanism 2 to adapt to the thickness of the ingot. The synchronous film feeding mechanism measures the ingot moving speed with the pressing wheel and controls the film feeding speed according to the ingot moving speed so that the length of the film fed can be adapted to the surface of the ingot to be coated.

[0038] The ingot conveying equipment is a conical roller conveyor; when the roller conveyor delivers the ingot to the inlet of the coating machine, the pressing roller of the synchronous film feeding mechanism is engaged and rotates with the conical roller of the roller conveyor. The PLC control system uses an encoder connected to the pressing roller to detect the angular velocity of the pressing roller in real time.

[0039] The synchronous film-laying mechanism includes an encoder mounted on a swing arm; when ingot coating is performed, the synchronous film-laying mechanism drives the swing arm with a cylinder, causing the pressing roller at the encoder shaft end to press against the surface of the running conical roller; the encoder transmits the detected angular velocity signal of the pressing roller. The data is transmitted to the PLC control system.

[0040] The PLC control system calculates the linear velocity of the tapered roller conveyor by the angular velocity of the pressure roller, and performs roller conveyor linear velocity compensation calculation in combination with the ingot width.

[0041] The membrane storage mechanism includes one or more membrane storage units, with different membrane storage units used to store membrane rolls of different specifications; the membrane roll rack of each membrane storage unit can be pulled outward to replace the membrane roll.

[0042] The preferred membrane chamber structure consists of three membrane chamber units: A, B, and C.

[0043] The membrane storage unit includes a membrane roll holder 6, a membrane guide rod 8, a membrane unloading power roller 9, a constant tension controller 15, and a plastic film guide frame 10;

[0044] The membrane material is a plastic film, which is stored in the membrane roll unit of the membrane roll frame of the synchronous membrane feeding mechanism in the form of a membrane roll. The membrane roll is supported by the membrane roll frame. The membrane material output from the membrane roll 5 is connected to the membrane feeding power roller of the synchronous membrane feeding mechanism through the membrane material path formed by the guide rod and the plastic film guide frame.

[0045] The film feeding motor 14 of the synchronous film feeding mechanism drives the film feeding power roller to rotate, and guides the film material to the ingot conveying surface of the ingot conveying equipment.

[0046] The constant tension controller is installed on the shaft fixed end of the membrane roll. The constant tension controller includes a magnetic powder brake that can adjust the resistance applied to the membrane roll according to a preset tension value.

[0047] The synchronous film feeding mechanism adjusts its operating conditions according to the speed of the conical roller conveyor to synchronize the film feeding speed of the synchronous film feeding mechanism with the linear speed of the roller conveyor.

[0048] The pressing mechanism includes a pressing roller 12. Springs on both sides of the pressing mechanism provide downward pressure to the pressing roller to apply pressure to the film material on the surface of the ingot. When the lifting mechanism descends and the pressing roller contacts the surface of the ingot, the lifting mechanism continues to descend to compress the spring. When the lifting mechanism descends to the set position and triggers the proximity switch, the lifting mechanism stops descending.

[0049] The film cutting mechanism includes a cutting groove and a film cutting blade 11 driven by a film cutting cylinder 7. The film cutting blade is a pneumatic cutter installed at the outlet of the film chamber. After the ingot is coated, the film cutting blade cuts the film material to separate the coating from the film chamber unit.

[0050] The lifting mechanism includes a frame, which is used to drive the membrane chamber mechanism to lift vertically to accommodate ingots of different thicknesses.

[0051] The lifting mechanism includes a hydraulic station 13, a synchronous linkage mechanism 17, and a laser sensor 16; the PLC control system is connected to the laser sensor to detect the height of the frame.

[0052] The synchronous linkage mechanism is driven by dual hydraulic cylinders of the hydraulic station, and a precision synchronous shaft is used to ensure that the lifting and lowering of both sides of the frame are synchronized to avoid the frame from tilting.

[0053] The working method of the fixed ingot coating equipment, using the fixed ingot coating equipment described above, includes the following steps;

[0054] Step 1, Initial Positioning: Based on the thickness of the ingot to be coated, the PLC control system controls the lifting mechanism to descend, so that the membrane chamber mechanism reaches the preset height, and the inlet anti-collision limit prevents it from descending too low.

[0055] Step 2, Pre-discharge of film: Control the film discharging power roller to pre-discharge a predetermined length of film material. The discharging length is set via the human-machine interface of the PLC control system.

[0056] Step 3, Synchronous Coating: When the front end of the ingot is transported to below the film roll, the pressure roller with encoder falls onto the pressure roller conveyor and begins to detect the angular velocity of the rollers; the PLC control system receives the ingot width... and angular velocity Calculate real-time linear velocity And control the film-releasing motor to match The speed of operation enables the ingot and the film material to move forward synchronously.

[0057] Step 4, Exit Pressing: When the front end of the ingot leaves the outlet of the coating machine, the control system controls the lifting mechanism to descend again, so that the pressure roller at the outlet presses against the upper surface of the ingot under the action of the spring until the spring is compressed and triggers the limit sensor, and the frame stops descending. The film material is tightly adhered by applying pressure to the surface of the ingot.

[0058] Step 5, Coating Completed: When the ingot is detected to have completely left the coating machine, the pressure roller is lifted and the speed of the pressure roller is stopped.

[0059] Step 6: Cutting the membrane material: The membrane cutting cylinder is activated, driving the membrane cutting blade to cut the membrane material.

[0060] Step 7, Reset and Standby: The membrane chamber mechanism rises to the original position under the drive of the lifting mechanism, completing one film covering cycle.

[0061] In step three, the method for calculating linear velocity compensation by the PLC control system is expressed by the following formula:

[0062]

[0063] in, For the real-time linear velocity of the ingot, The angular velocity of the roller conveyor detected by the encoder. The radius of the small end of the tapered roller is... The ingot width is provided by the upstream equipment. For the taper of the tapered roller, The length of the untapered section in the center of the roller conveyor;

[0064] The PLC control system calculates the linear velocity. The rotational speed of the film-dispensing power roller of the synchronous film-dispensing mechanism is controlled to achieve synchronization between the film-dispensing speed and the linear speed of the roller conveyor for ingots.

[0065] In the synchronous film-laying mechanism, tension sensors are installed at both ends of the guide rod to form tension detection points, which are used to detect the actual tension of the film material in real time and feed it back to the tension controller;

[0066] The PLC control system dynamically adjusts the braking force of the magnetic powder brake through the PID algorithm to maintain constant membrane tension and avoid wrinkles, film jamming or film breakage during the lamination process.

[0067] The control logic for braking force is as follows:

[0068] When the servo traction speed of the roller conveyor for ingots increases, the controller synchronously increases the braking force of the magnetic powder brake to prevent the film material from being overstretched.

[0069] When the traction speed of the roller conveyor ingots slows down, the controller reduces the braking force to prevent the film material from accumulating and loosening.

[0070] When the actual tension of the membrane material drops sharply during the tension feedback process, the PLC control system determines that the membrane roll in the membrane storage unit is exhausted.

[0071] Example:

[0072] This example presents a fixed ingot coating equipment, including a fixed frame, a lifting mechanism, a film storage mechanism, a synchronous film feeding mechanism, a pressing mechanism, and a film cutting mechanism.

[0073] The lifting mechanism is mounted on a fixed frame and is used to drive the entire membrane chamber mechanism to move vertically up and down to accommodate ingots of different thicknesses. The lifting mechanism includes a hydraulic station, a synchronous linkage mechanism driven by a hydraulic cylinder, and a laser sensor for detecting the height of the frame. The synchronous linkage mechanism is used to ensure the smoothness of the lifting process and prevent the frame from tilting.

[0074] The membrane storage mechanism includes at least one membrane storage unit, preferably with three membrane storage units A, B, and C, for storing membrane rolls of different specifications. Each membrane storage unit includes a membrane roll holder, a guide rod, a film unloading power roller, a constant tension controller, a plastic film guide frame, and a film cutter and cutter groove driven by a film cutting cylinder.

[0075] The constant tension controller is installed at the fixed end of the film roll and uses a magnetic powder brake to apply adjustable resistance to the film roll. Tension detection points are located at both ends of the guide roller, and tension sensors are installed to detect the actual tension of the film material in real time and feed it back to the tension controller. The controller dynamically adjusts the braking force of the magnetic powder brake through a PID algorithm to maintain a constant film tension and avoid wrinkles, film jamming, or film breakage during the lamination process. In addition, tension feedback can also be used to determine whether the film roll is exhausted (a sudden drop in tension is a signal that the film roll is exhausted).

[0076] Its control logic is as follows:

[0077] When the servo traction speed increases, the controller synchronously increases the braking force of the magnetic powder brake to prevent the membrane material from being overstretched.

[0078] When the traction speed decreases, the controller reduces the braking force to prevent the membrane material from accumulating and loosening.

[0079] The film cutting mechanism, located at the film bin outlet, consists of a film cutting cylinder, a film cutting blade holder, a secondary film cutting blade, and a film cutting blade groove. It is used to cut the film material after coating. The synchronous film feeding mechanism includes an encoder-operated pressure roller mounted on the side of the roller conveyor. This pressure roller is activated for calculation when the ingot is conveyed to the coating machine inlet and rotates together with the roller conveyor tapered roller. The encoder detects the angular velocity of the pressure roller in real time.

[0080] The pressing mechanism includes a pressing roller installed at the outlet of the laminating machine. The pressing roller is supported by a spring and can elastically press against the surface of the ingot when the frame descends. The frame stops descending when the spring is compressed to the limit switch position.

[0081] The film cutting mechanism is located at the outlet of the film chamber and consists of a film cutting cylinder, a film cutting knife holder, a film cutting auxiliary knife, and a film cutting knife groove. It is used to cut the film material after the film is coated.

[0082] This example is used for coating operations on the surface of milled metal ingots. During the coating process, constant tension control and high-precision synchronous film release are used to ensure that the film is flat and adhered to the surface, avoiding secondary contamination.

[0083] In this example, the laminating machine is fixed to the foundation with a fixed frame and anchor bolts; the lifting mechanism uses a set of double hydraulic cylinders driven by a hydraulic station, and the lifting on both sides is absolutely synchronized by a precision synchronous shaft, and the laser range sensor provides real-time feedback on the height of the frame.

[0084] The membrane compartment mechanism 3 has three independent membrane compartments (A, B, C). The membrane roll holder in each compartment can be pulled outwards for easy membrane roll replacement. The guide rod 3 and the plastic membrane guide frame ensure a smooth membrane path. The constant tension controller uses a magnetic powder brake to automatically adjust the resistance to the membrane roll according to a preset tension value.

[0085] The core of the synchronous film feeding mechanism is an encoder mounted on a swing arm. During operation, a cylinder drives the swing arm to press the encoder shaft against the surface of the running tapered roller. The encoder transmits the detected angular velocity signal to the PLC control system.

[0086] The pressing rollers of the pressing mechanism provide downward pressure through springs on both sides. As the frame descends, after the pressing rollers contact the surface of the cast iron 7, the frame continues to descend, compressing the springs until the set position is reached, triggering the proximity switch and stopping the descent.

[0087] The film cutting mechanism consists of a set of pneumatic cutters and cutter grooves, and is installed at the outlet of the film chamber.

Claims

1. A fixed ingot coating equipment for coating the surface of a metal ingot after milling, characterized in that: The coating equipment is a coating machine fixed at the ingot conveying equipment. The coating machine includes a PLC control system, a synchronous film feeding mechanism with a film hopper mechanism, a pressing mechanism for applying pressure to the coated film, and a cutting mechanism for cutting the coated film from the film hopper mechanism. When coating the ingot, the film hopper mechanism is raised and lowered by a lifting mechanism to adapt to the thickness of the ingot. The synchronous film feeding mechanism measures the ingot moving speed with a pressing wheel and controls the film feeding speed according to the ingot moving speed so that the length of the film fed can be adapted to the surface of the ingot to be coated.

2. The fixed ingot coating equipment according to claim 1, characterized in that: The ingot conveying equipment is a conical roller conveyor; when the roller conveyor delivers the ingot to the inlet of the coating machine, the pressing roller of the synchronous film feeding mechanism is engaged and rotates with the conical roller of the roller conveyor. The PLC control system uses an encoder connected to the pressing roller to detect the angular velocity of the pressing roller in real time. The synchronous film-laying mechanism includes an encoder mounted on a swing arm; when ingot coating is performed, the synchronous film-laying mechanism drives the swing arm with a cylinder, causing the pressing roller at the encoder shaft end to press against the surface of the running conical roller; the encoder transmits the detected angular velocity signal of the pressing roller. The data is transmitted to the PLC control system.

3. The fixed ingot coating equipment according to claim 1, characterized in that: The membrane material is a plastic film, which is stored in the form of a membrane roll in the membrane roll rack of the membrane storage unit of the synchronous membrane feeding mechanism. The membrane storage mechanism includes one or more membrane storage units, and different membrane storage units are used to store membrane rolls of different specifications.

4. A fixed ingot coating equipment according to claim 3, characterized in that: The membrane storage unit includes a membrane roll holder, a membrane guide rod, a membrane unloading power roller, a constant tension controller, and a plastic film guide frame; The membrane material output from the membrane roll is connected to the film-laying power roller of the synchronous film-laying mechanism via the membrane material path formed by the membrane guide rod and the plastic film guide frame.

5. A fixed ingot coating equipment according to claim 4, characterized in that: The film feeding motor of the synchronous film feeding mechanism drives the film feeding power roller to rotate, thus guiding the film material to the ingot conveying surface of the ingot conveying equipment.

6. A fixed ingot coating equipment according to claim 4, characterized in that: The constant tension controller is installed on the fixed end of the membrane roll shaft. The constant tension controller includes a magnetic powder brake that can adjust the resistance applied to the membrane roll according to a preset tension value.

7. A fixed ingot coating equipment according to claim 4, characterized in that: The synchronous film feeding mechanism adjusts its operating conditions according to the speed of the conical roller conveyor to synchronize the film feeding speed of the synchronous film feeding mechanism with the linear speed of the roller conveyor.

8. A fixed ingot coating equipment according to claim 4, characterized in that: Each membrane roll holder in the membrane compartment can be pulled outwards to replace the membrane roll.

9. A fixed ingot coating equipment according to claim 1, characterized in that: The pressing mechanism includes a pressing roller. Springs on both sides of the pressing mechanism provide downward pressure to the pressing roller to apply pressure to the film material on the surface of the ingot. When the lifting mechanism descends and the pressing roller contacts the surface of the ingot, the lifting mechanism continues to descend to compress the spring. When the lifting mechanism descends to the set position and triggers the proximity switch, the lifting mechanism stops descending. The film cutting mechanism includes a cutting groove and a film cutting blade driven by a film cutting cylinder. The film cutting blade is a pneumatic cutter installed at the outlet of the film hopper. After the ingot is coated, the film cutting blade cuts the film material to separate the coating from the film hopper unit.

10. A fixed ingot coating equipment according to claim 1, characterized in that: The lifting mechanism includes a frame, which is used to drive the membrane chamber mechanism to lift vertically to accommodate ingots of different thicknesses. The lifting mechanism includes a hydraulic station, a synchronous linkage mechanism, and a laser sensor; the PLC control system is connected to the laser sensor to detect the height of the frame. The synchronous linkage mechanism is driven by dual hydraulic cylinders of the hydraulic station, and a precision synchronous shaft is used to ensure that the lifting and lowering of both sides of the frame are synchronized to avoid the frame from tilting.

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