Film collecting module

Abstract

The utility model discloses a kind of film collection module, belong to film collection equipment technical field, including mounting bracket, the drive of being installed in the mounting bracket, the fixed link with limit slot, and bolt, the fixed link is connected with the pivot of the drive, the limit slot extends along the axial direction of the pivot, one end of the bolt is connected with the fixed link, the other end of the bolt is used to compress the end of protective film and be positioned in the limit slot, when the fixed link is rotated by the pivot driven by the drive, the protective film is continuously wound on the outer periphery of the fixed link. The utility model reaches the technical effect of improving film collection process efficiency, reduce cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of film collection equipment, and specifically relates to a film collection module. Background Technology

[0002] During the stamping process, a protective film is usually attached to the surface of the raw material to prevent scratches, contamination, and other defects during transportation, storage, or processing. Before the raw material is fed into the stamping press for forming, this protective film must be removed and collected to prevent it from getting caught in the mold or affecting stamping accuracy. In existing technology, the removal and collection of the protective film is usually done manually, with operators manually peeling the film off the surface of the raw material. However, the speed of manual film collection is limited by the operator's skill level and physical strength, making it difficult to match the production rhythm, resulting in low efficiency and high cost.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is the low efficiency and high cost of the film collection process.

[0005] To solve the above-mentioned technical problems, this utility model provides a film-collecting module, which includes a mounting frame, a driver mounted on the mounting frame, a fixing rod with a limiting groove, and a pin. The fixing rod is connected to the rotating shaft of the driver, the limiting groove extends axially along the rotating shaft, one end of the pin is detachably connected to the fixing rod, and the other end of the pin is used to press and position the end of the protective film in the limiting groove, so that when the driver drives the rotating shaft to rotate the fixing rod, the protective film is continuously wound around the outer periphery of the fixing rod.

[0006] Optionally, the fixing rod includes an end, a beginning, and a film receiving section that connects the end and the beginning respectively. One end of the pin is detachably connected to the end, the beginning is connected to the rotating shaft, and the limiting groove is recessed from the outer peripheral surface of the film receiving section.

[0007] Optionally, the end is provided with a mounting hole that matches one end of the pin, and one end of the pin is inserted into the mounting hole to form a detachable connection.

[0008] Optionally, the mounting bracket includes a support and a mounting plate connected to the support, the driver is fixed to the mounting plate, and the rotating shaft passes through the mounting plate and is connected to the fixing rod.

[0009] Optionally, the other end of the pin is at least partially located within the limiting groove along a direction close to the limiting groove, and the other end of the pin is spaced apart from the mounting plate.

[0010] Optionally, the film collection module further includes a base plate and a fixing frame connected to the base plate and the mounting plate respectively. The driver is fixed to the base plate, and the rotating shaft passes through the base plate and the mounting plate in sequence before being connected to the fixing rod.

[0011] Optionally, the film receiving module further includes a tension sensor and a controller. The tension sensor is disposed on the travel path of the protective film and contacts the protective film to obtain tension information of the protective film. The controller is electrically connected to the tension sensor and the driver respectively. The controller is used to receive the tension information and determine whether the tension information is lower than a preset threshold. If so, it controls the driver to stop working.

[0012] Optionally, the film collection module further includes a power module and a torque speed control switch disposed on the power module. The power module is connected to the driver through the torque speed control switch, which is used to control the torque of the driver.

[0013] Optionally, the film collection module further includes a main power switch, which is connected to both the power module and the torque speed control switch to control whether the power module supplies power to the driver.

[0014] Optionally, the film collection module further includes a power supply box disposed on the mounting frame, wherein the controller, the power supply module, the torque speed control switch and the main power switch are respectively integrated into the power supply box.

[0015] Beneficial effects:

[0016] This utility model provides a film-winding module, which is mounted on a mounting frame via a driver. A fixed rod is connected to the driver's rotating shaft, and a limiting groove on the fixed rod extends axially along the rotating shaft. One end of a pin is detachably connected to the fixed rod, and the other end of the pin is used to press and position the end of the protective film within the limiting groove. When the driver drives the rotating shaft to rotate the fixed rod, the protective film is continuously wound around the outer circumference of the fixed rod. In this way, during the film-winding process, the end of the protective film is pre-inserted into the limiting groove, and the other end of the pin presses and positions the end of the protective film within the limiting groove. Then, the driver is activated, and the rotating shaft drives the fixed rod to rotate, causing the protective film to be continuously wound around the outer circumference of the fixed rod, thus achieving automatic winding of the film material around the outer circumference of the fixed rod. Furthermore, when it is necessary to replace the wound protective film, the fixed rod can be disassembled to promptly remove the wound protective film, which is beneficial for batch processing. This achieves the technical effects of improving the efficiency of the film-winding process and reducing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a film receiving module provided in an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the structure of a fixing rod in a film receiving module provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the limiting groove in a film receiving module provided for an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the structure of a pin in a film receiving module provided in an embodiment of the present utility model.

[0022] Figure 5 This is a structural block diagram of a film receiving module, including a driver, a torque speed control switch, a main power switch, and a power module, provided for an embodiment of this utility model.

[0023] Figure 6 This is a structural block diagram of a tension sensor, driver, and controller in a film-collecting module provided for an embodiment of the present invention.

[0024] The labels in the attached diagram have the following meanings: 1—mounting bracket, 11—support, 12—mounting plate, 2—driver, 21—rotating shaft, 3—fixed rod, 31—limiting groove, 32—end, 321—mounting hole, 33—head end, 34—film take-up section, 4—pin, 5—base plate, 51—fixed bracket, 6—tension sensor, 7—controller, 8—power module, 81—torque speed control switch, 82—main power switch, 9—power box, 10—protective film, 101—punch press, 102—feeding machine, 103—raw material. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0028] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0029] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0030] This utility model provides a film receiving module; please refer to [link / reference]. Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the structure of a film receiving module provided in an embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of the fixing rod 3 in a film receiving module provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the limiting groove 31 in a film receiving module provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of the pin 4 in a film receiving module provided in an embodiment of this utility model. Figure 5 This is a structural block diagram of the driver 2, torque speed control switch 81, main power switch 82, and power module 8 in a film receiving module provided by an embodiment of this utility model. Figure 6 This is a structural block diagram of the tension sensor 6, driver 2, and controller 7 in a film-collecting module provided by an embodiment of the present invention. The film-collecting module provided by this embodiment of the present invention includes a mounting frame 1, a driver 2, a fixing rod 3, and a pin 4. The driver 2 is mounted on the mounting frame 1. The fixing rod 3 has a limiting groove 31 and is connected to the rotating shaft 21 of the driver 2. The limiting groove 31 extends along the axial direction of the rotating shaft 21. One end of the pin 4 is connected to the fixing rod 3, and the other end of the pin 4 is used to press and position the end of the protective film 10 within the limiting groove 31. When the driver 2 drives the rotating shaft 21 to rotate the fixing rod 3, the protective film 10 is continuously wound around the outer circumference of the fixing rod 3.

[0031] The mounting bracket 1 provides support for the driver 2, the fixing rod 3, and the pin 4. The driver 2 includes a torque motor, a servo motor, a stepper motor, or a rotary cylinder. The output end of the driver 2 is connected to a rotating shaft 21, which provides rotational power, while the rotating shaft 21 serves as the output component for rotational motion. The centerline of the fixing rod 3 along its length can be aligned with or parallel to the axis of the rotating shaft 21 of the driver 2. One end of the fixing rod 3 can be fixedly connected to the rotating shaft 21 of the driver 2 via a coupling to transmit power, allowing the fixing rod 3 to rotate synchronously with the rotating shaft 21. A limiting groove 31 is formed on the fixing rod 3, extending along the axial direction of the rotating shaft 21, i.e., the length direction of the fixing rod 3. The interior of the limiting groove 31 has space to accommodate the end of the protective film 10.

[0032] The other end of the pin 4 can press and position the end of the protective film 10 inside the limiting groove 31. For example, the other end of the pin 4 can have a certain elasticity. Before the end of the protective film 10 is put into the limiting groove 31, the other end of the pin 4 is pressed into the limiting groove 31. After pulling the other end of the pin 4 away from the limiting groove 31 and putting the end of the protective film 10 into the limiting groove 31, the pulling force applied to the other end of the pin 4 is removed. The other end of the pin 4 will restore its elastic deformation and press the end of the protective film 10 into the limiting groove 31. Alternatively, the surface of the other end of the pin 4 can be covered with adhesive. The end of the protective film 10 is inserted into the limiting groove 31 and adheres to the adhesive, so that the end of the protective film 10 is adsorbed on the other end of the pin 4.

[0033] First, the end of the protective film 10 is placed into the limiting groove 31 of the fixing rod 3. Then, the pin 4 is installed on the fixing rod 3, so that the pin 4 can press the end of the protective film 10 in the limiting groove 31. Then, the driver 2 is started, and the rotating shaft 21 of the driver 2 drives the fixing rod 3 to start rotating. At this time, since the end of the protective film 10 is pressed tightly in the limiting groove 31 by the pin 4, the rotation of the fixing rod 3 pulls the protective film 10, which will cause the protective film 10 to be continuously and tightly wound on the outer circumference of the fixing rod 3, forming a roll of protective film 10. When the protective film 10 has been wound to the required amount or is completed, and needs to be replaced, simply remove the pin 4 from the fixing rod 3. The removed pin 4 and the roll of protective film 10 on the pin 4 can be easily removed from the fixing rod 3. The fixing rod 3 with the roll of protective film 10 removed can be reinstalled with the pin 4, ready for the next round of winding operation, realizing efficient batch processing.

[0034] In this embodiment, the driver 2 is mounted on the mounting bracket 1. The fixing rod 3 is connected to the rotating shaft 21 of the driver 2. The limiting groove 31 on the fixing rod 3 extends axially along the rotating shaft 21. One end of the pin 4 is detachably connected to the fixing rod 3, and the other end of the pin 4 is used to press and position the end of the protective film 10 in the limiting groove 31. When the driver 2 drives the rotating shaft 21 to rotate the fixing rod 3, the protective film 10 is continuously wound around the outer circumference of the fixing rod 3. Thus, during the film winding process, the end of the protective film 10 is pre-inserted into the limiting groove 31, and the other end of the pin 4 presses and positions the end of the protective film 10 in the limiting groove 31. Then, the driver 2 is started, and the rotating shaft 21 drives the fixing rod 3 to rotate, so that the protective film 10 is continuously wound around the outer circumference of the fixing rod 3, realizing the automatic winding of the film material around the outer circumference of the fixing rod 3. Furthermore, when it is necessary to replace the wound protective film 10, the wound protective film 10 can be removed in time by disassembling the fixing rod 3, which is beneficial for batch processing. This achieves the technical effect of improving the efficiency of the film collection process and reducing costs.

[0035] In one embodiment, the fixing rod 3 includes an end 32, a beginning 33, and a film-collecting section 34. The end 32, the beginning 33, and the film-collecting section 34 can be integrally formed. The film-collecting section 34 is connected to the end 32 and the beginning 33, respectively. One end of the pin 4 is connected to the end 32, and the beginning 33 is connected to the rotating shaft 21. The limiting groove 31 is recessed from the outer peripheral surface of the film-collecting section 34. The beginning 33 of the fixing rod 3 is used to connect to the rotating shaft 21 of the driver 2 to transmit torque. The end 32 is used for a detachable connection with the pin 4. The film-collecting section 34 can support the limiting groove 31 and provide a surface for winding the protective film 10. The limiting groove 31 is formed on the outer surface of the film-collecting section 34 where the protective film 10 is wound, so that the end of the protective film 10 can be directly embedded in the limiting groove 31. When the pin 4 is connected to the end 32, the other end of the pin 4 can effectively press and position the end of the protective film 10 located in this limiting groove 31. After the driver 2 is started, the rotating shaft 21 drives the fixing rod 3 and the pin 4 to rotate as a whole, and the protective film 10 on the film receiving section 34 will be wound up.

[0036] In some embodiments, the end 32 of the fixing rod 3 is provided with a mounting hole 321, which can extend along the axial direction of the rotating shaft 21. The mounting hole 321 matches one end of the pin 4, and one end of the pin 4 is inserted into the interior of the mounting hole 321 to form a detachable connection. For example, one end of the pin 4 is installed inside the mounting hole 321 with an interference fit. By forcefully inserting or pulling, one end of the pin 4 is fixed in the mounting hole 321, or one end of the pin 4 is separated from the mounting hole 321. Alternatively, an external thread is machined on one end of the pin 4, and an internal thread is provided in the mounting hole 321, so that one end of the pin 4 is threadedly connected to the mounting hole 321. Specifically, by providing a mounting hole 321, such as a cylindrical hole, a square hole, or a threaded hole, at the end 32 of the fixing rod 3, which matches one end of the pin 4, such as a pin body of corresponding diameter, a square head, or a threaded rod, a detachable connection method that is easy to operate can be achieved. Inserting one end of the pin 4 into the hole completes the positioning and initial fixation. When disassembling, simply pull or unscrew the pin 4 from the mounting hole 321. This helps improve the efficiency of replacing the 10 rolls of protective film and reduces the difficulty and time cost of operation.

[0037] In some embodiments, the mounting frame 1 includes a bracket 11 and a mounting plate 12. The mounting plate 12 is connected to the bracket 11, the driver 2 is fixed on the mounting plate 12, and the rotating shaft 21 passes through the mounting plate 12 and connects to the fixing rod 3. The bracket 11 of the mounting frame 1 provides load-bearing and overall positioning, while the mounting plate 12 serves as a platform for fixing the driver 2. Fixing the driver 2 to the mounting plate 12, with the rotating shaft 21 starting from the output end of the driver 2, passing through a through hole in the mounting plate 12, and connecting to the fixing rod 3, helps to improve the stability of the driver 2 installation, as well as the stability of the rotation axis 21 of the rotating shaft 21 and the fixing rod 3 connected to the rotating shaft 21 relative to the mounting frame 1, reducing the risk of vibration and sway, and improving the continuity and reliability of the protective film 10 winding process.

[0038] In some embodiments, the other end of the pin 4 is at least partially located inside the limiting groove 31 along the direction close to the limiting groove 31, and the other end of the pin 4 is spaced apart from the mounting plate 12. When the pin 4 is installed in place, the pressing end of the pin 4 can effectively cover part or all of the opening area of ​​the limiting groove 31, so that the pressing end of the pin 4 can contact the end of the protective film 10 embedded in the groove in the pressing direction, i.e., the direction towards the inside of the limiting groove 31, and press the end of the protective film 10 downward or restrict it inside the limiting groove 31. The gap between the pressing end of the pin 4 and the mounting plate 12 ensures that the rotation trajectory of the pin 4 will not physically interfere with the mounting plate 12 during the film winding process driven by the fixing rod 3, and facilitates the removal of the protective film 10 from the pin 4 after winding.

[0039] In some embodiments, the film-collecting module provided by this utility model further includes a base plate 5 and a fixing frame 51. The fixing frame 51 is connected to the base plate 5 and the mounting plate 12 respectively. The driver 2 is fixed on the base plate 5, and the rotating shaft 21 passes through the base plate 5 and the mounting plate 12 in sequence before being connected to the fixing rod 3. The base plate 5 provides a platform for the installation of the driver 2, which can enhance the overall rigidity. The fixing frame 51 is connected between the base plate 5 and the mounting plate 12, which can provide additional support for the mounting plate 12, forming a three-dimensional frame structure that is resistant to bending and torsion. After the driver 2 is installed through the base plate 5, the rotating shaft 21 passes through the through holes on the base plate 5 and the mounting plate 12 in sequence, which can provide a longer support span and multi-point positioning for the rotating shaft 21, improve the rigidity and stability of the rotating shaft 21 during high-speed rotation, reduce radial runout and axial movement, and help improve the uniformity, flatness and high speed of the protective film 10 winding.

[0040] In some embodiments, the film receiving module provided by this utility model further includes a tension sensor 6 and a controller 7. The tension sensor 6 is disposed on the travel path of the protective film 10. For example, the tension sensor 6 is mounted between the fixed rod 3 and the feeding machine 102 via a support frame, and the tension sensor 6 is in contact with the protective film 10 located between the fixed rod 3 and the feeding machine 102. Through the contact between the tension sensor 6 and the protective film 10, the tension information of the protective film 10 can be obtained. The controller 7 is electrically connected to the tension sensor 6 and the driver 2 respectively. The controller 7 is used to receive tension information, which may include the tension or pressure signal of the protective film 10, and to determine whether the tension information is lower than a preset threshold based on the received tension information. The specific value of the preset threshold can be set in advance according to actual needs. If it is, the controller 2 is controlled to stop working. If not, the controller 2 is controlled to continue working. When the tension signal is determined to be below the preset threshold, it is reflected in the operation of the feeding machine 102. At this time, the protective film 10 has been completely peeled off from the surface of the raw material 103 and has been wound up. If the fixed rod 3 continues to rotate, it will cause idling, film breakage, or film detachment and other abnormalities. By stopping the driver 2, idling can be avoided and equipment damage can be prevented. That is, it automatically starts and stops according to the tension of the protective film 10. When the tension information is greater than or equal to the preset threshold, it is reflected in the operation of the feeding machine 102. The feeding machine 102 continues to supply the raw material 103 to the punch press 101 normally. The protective film 10 has not been completely peeled off from the surface of the raw material 103, and the fixed rod 3 needs to continue to rotate. By setting the tension sensor 6 to monitor the tension state of the protective film 10 during movement, and the controller 7 to compare and judge this state with the preset threshold in real time, the automated safety monitoring of the film taking process can be realized. Timely shutdown reduces ineffective operation and potential failure risks, and improves the continuity and stability of the film taking operation.

[0041] In some embodiments, the film-receiving module provided by this utility model further includes a power supply module 8 and a torque speed control switch 81. The torque speed control switch 81 is disposed on the power supply module 8, and the power supply module 8 is connected to the driver 2 through the torque speed control switch 81. The torque speed control switch 81 is used to control the torque of the driver 2. The torque speed control switch 81 can adjust the current or voltage supplied to the driver 2 to control the torque output of the driver 2. The power supply module 8 provides the power required for the operation of the driver 2. The torque speed control switch 81, as an adjustment component at the output end of the power supply module 8, allows the operator to flexibly adjust the torque output of the driver 2 according to actual winding requirements, such as the different winding forces required for protective films 10 of different thicknesses, materials, or widths. By increasing or decreasing the torque output, the winding tightness can be optimized, preventing the film from breaking due to excessive tension or resulting in loose and uneven winding due to insufficient tension. This is beneficial for improving the adaptability to different specifications of film materials and improving the reliability of winding quality under various working conditions.

[0042] In some embodiments, the film-collecting module provided by this utility model further includes a main power switch 82, which is connected to both the power module 8 and the torque speed control switch 81, to control whether the power module 8 supplies power to the driver 2. When the equipment is not in operation, such as during film roll replacement, equipment maintenance, or long-term shutdown, disconnecting the main power switch 82 can completely cut off the input power to the power module 8, thereby completely de-energizing the driver 2. This eliminates standby power consumption during non-operational periods and avoids the safety risk of the driver 2 being accidentally started during maintenance or adjustment, which is beneficial for the safe and stable operation of the equipment and cost control.

[0043] In some embodiments, the film-collecting module provided by this utility model further includes a power supply box 9, which is mounted on the mounting frame 1. The controller 7, power supply module 8, torque speed control switch 81, and main power switch 82 are integrated into the power supply box 9. By integrating the controller 7, power supply module 8, torque speed control switch 81, and main power switch 82 into the power supply box 9, centralized management and encapsulation can be achieved, providing a protective shell for the controller 7 and power supply module 8 and improving the reliability of the equipment in harsh industrial environments. Simultaneously, the connecting cables of the controller 7, power supply module 8, torque speed control switch 81, and main power switch 82 can be neatly arranged inside the power supply box 9, reducing messy external wiring and lowering the possibility of malfunctions caused by pulling or abrasion of external cables.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A film receiving module, characterized in that, The film-collecting module includes a mounting frame, a driver mounted on the mounting frame, a fixing rod with a limiting groove, and a pin. The fixing rod is connected to the rotating shaft of the driver, the limiting groove extends axially along the rotating shaft, one end of the pin is detachably connected to the fixing rod, and the other end of the pin is used to press and position the end of the protective film in the limiting groove so that when the driver drives the rotating shaft to rotate the fixing rod, the protective film is continuously wound around the outer periphery of the fixing rod.

2. The film receiving module according to claim 1, characterized in that, The fixing rod includes an end, a head, and a film receiving section that connects the end and the head respectively. One end of the pin is detachably connected to the end, the head is connected to the rotating shaft, and the limiting groove is recessed from the outer peripheral surface of the film receiving section.

3. The film receiving module according to claim 2, characterized in that, The end is provided with a mounting hole that matches one end of the pin, and one end of the pin is inserted into the mounting hole to form a detachable connection.

4. The film receiving module according to claim 1, characterized in that, The mounting bracket includes a support and a mounting plate connected to the support. The driver is fixed to the mounting plate, and the rotating shaft passes through the mounting plate and is connected to the fixing rod.

5. The film receiving module according to claim 4, characterized in that, The other end of the pin is at least partially located within the limiting groove along the direction close to the limiting groove, and the other end of the pin is spaced apart from the mounting plate.

6. The film receiving module according to claim 4, characterized in that, The film collection module also includes a base plate and a fixing frame connected to the base plate and the mounting plate respectively. The driver is fixed to the base plate, and the rotating shaft passes through the base plate and the mounting plate in sequence and is connected to the fixing rod.

7. The film receiving module according to claim 1, characterized in that, The film receiving module also includes a tension sensor and a controller. The tension sensor is disposed on the travel path of the protective film and contacts the protective film to obtain tension information of the protective film. The controller is electrically connected to the tension sensor and the driver respectively. The controller is used to receive the tension information and determine whether the tension information is lower than a preset threshold. If so, it controls the driver to stop working.

8. The film receiving module according to claim 7, characterized in that, The film collection module further includes a power module and a torque speed control switch disposed on the power module. The power module is connected to the driver through the torque speed control switch, which is used to control the torque of the driver.

9. The film receiving module according to claim 8, characterized in that, The film collection module also includes a main power switch, which is connected to both the power module and the torque speed control switch to control whether the power module supplies power to the driver.

10. The film receiving module according to claim 9, characterized in that, The film collection module also includes a power supply box disposed on the mounting frame, wherein the controller, the power supply module, the torque speed control switch and the main power switch are respectively integrated into the power supply box.

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