Automatic protective film winding device

Abstract

The invention provides an automatic protective film winding device, and belongs to the technical field of packaging equipment, and the automatic protective film winding device comprises a rack, a pressing mechanism and a winding mechanism. A first placing position for placing a product is arranged on the rack; the pressing mechanism is arranged on the rack and located above the first placing position, the pressing mechanism comprises a pressing head, and the pressing head is arranged above the first placing position in a lifting mode; the winding mechanism comprises a winding arm and a winding driving structure, the winding arm is rotatably arranged on the rack, the winding driving structure drives the winding arm to rotate around the axis of the first placing position, and the winding arm is provided with a second placing position for placing the rolled film. The device can realize automatic winding of the protective film of the product, can reduce the labor intensity of operators, and improves the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, and in particular to an automatic protective film winding device. Background Art

[0002] In modern industrial production, product appearance protection is a vital link. For example, in the manufacturing process of household appliances such as air fresheners, after the product is assembled, a protective film needs to be covered on the outer surface of the product to ensure that it is not damaged during transportation and storage. At present, the wrapping and winding of the protective film is mainly completed by manual operation. The operator wraps the protective film on the outer surface of the product and ensures that the winding reaches the specified 2.5 turns. However, this manual laminating method has many shortcomings. First, the efficiency of manual laminating is low. Since the operator needs to manually wrap the protective film and ensure the uniformity of the winding and the specified number of turns, this process takes a lot of time, resulting in low production efficiency. Secondly, when wrapping the protective film, the operator needs to accurately control the strength and speed of the winding to ensure that the protective film can fit tightly on the outer surface of the product while avoiding too many bubbles or wrinkles. This requirement requires operators to undergo long-term training and practice before they can reach a proficient level. In addition, the manual laminating operation process is labor-intensive. During the lamination process, operators need to carry, rotate, and perform other operations on the products. These actions not only require a lot of physical strength, but may also cause fatigue or discomfort to the operators due to long-term repetitive operations.

[0003] Therefore, it is necessary to improve the protective film winding operation method of existing products to overcome the defects of the prior art. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the purpose of the present invention is to provide an automatic protective film winding device, which can realize automatic winding of the protective film of the product, reduce the labor intensity of the operator and improve the production efficiency.

[0005] A protective film automatic winding device, comprising:

[0006] The rack is provided with a first placement position for placing products; the design of the first placement position is suitable for products of various shapes and sizes so as to achieve wide applicability.

[0007] A pressing mechanism is arranged on the frame and located above the first placement position. The pressing mechanism includes a pressing head, and the pressing head can be raised and lowered above the first placement position. During operation, the pressing head descends and presses the product to ensure that the product does not move or shake during the winding process, thereby improving the accuracy and stability of the winding.

[0008] The winding mechanism includes a winding arm and a winding drive structure. The winding arm is rotatably arranged on the frame. The winding drive structure drives the winding arm to rotate around the axis of the first placement position. The winding arm is provided with a second placement position for placing the roll film. The winding arm can drive the protective film to rotate and wrap around the product. The winding arm is provided with a second placement position for placing the roll film. The roll film is pulled out from the second placement position and covers the product, thereby realizing automatic winding of the protective film.

[0009] During the use of the device, the product is first placed on the first placement position, and then the pressing mechanism is started to make the pressing head descend and press the product. Then the winding mechanism is started, and the winding drive structure drives the winding arm to start rotating. At the same time, the roll film is pulled out from the second placement position and gradually covers the product. By controlling the rotation speed and number of turns of the winding arm, the requirements of different products for protective film winding can be met. Finally, when the winding is completed, the pressing head rises to release the product, and the wound product can be taken out. The device realizes the automatic winding process of the protective film through the cooperation of the pressing mechanism and the winding mechanism, without manual operation, which greatly improves work efficiency and production efficiency. By pressing the product with the pressing head and rotating the winding arm, the protective film is ensured to be tightly fitted and evenly covered, and the quality and effect of winding are improved. The automated winding process reduces the labor intensity of the operator and avoids the fatigue and inefficiency caused by manual winding.

[0010] In a preferred technical solution of the present invention, a bearing rod is provided on the winding arm, a turntable is provided on the bearing rod, a positioning rod is provided on the turntable, and the turntable and the positioning rod form the second placement position. During operation, the roll film is placed on the second placement position formed by the turntable and the positioning rod, and the cooperation of the turntable and the positioning rod enables the roll film to be stably placed on the second placement position, avoiding the situation of the roll film shifting or falling off during the winding process, and improving the stability and accuracy of the winding. When the winding mechanism is started, the winding arm starts to rotate, driving the turntable on the bearing rod to rotate together. Due to the cooperation of the turntable and the positioning rod, the roll film can be stably placed on the second placement position, and is gradually pulled out with the rotation of the turntable, covering the product. By controlling the rotation speed and number of turns of the winding arm, and adjusting the relative position between the turntable and the positioning rod, the requirements of different products for protective film winding can be met. This design not only improves the accuracy and stability of winding, but also makes the entire device more flexible and applicable.

[0011] In a preferred technical solution of the present invention, a limiting rod is provided on the bearing rod, the limiting rod is provided on one side of the positioning rod, and the axis of the limiting rod is parallel to the axis of the positioning rod.

[0012] The main function of the limit rod is to further limit and fix the position of the film roll, ensuring that the film roll will not deviate from the predetermined track due to external force or its own weight during the winding process. The limit rod is arranged on one side of the positioning rod, so that a placement space for the film roll is formed between the limit rod and the positioning rod, which is convenient for the installation of the film roll. In another embodiment, when the film roll is placed on the second placement position formed by the turntable and the positioning rod, the limit rod can also limit the film roll on one side to provide a stable support point for it. In this way, even in the case of high-speed rotation or long-term work, the film roll can maintain a stable state without shaking or deviation.

[0013] In a preferred technical solution of the present invention, a guide structure is also provided on the winding arm, and the guide structure includes a guide bracket, and the guide bracket is fixed on the winding arm. A roller and a drum are provided on the guide bracket, and the roller and the drum are parallel to each other, and the roller and the drum can be rotatably arranged on the guide bracket, and the roller is located at the edge of the guide bracket.

[0014] The guide structure provides a strong guarantee for the smooth unfolding and precise guiding of the protective film during the winding process. During the working process, the protective film is first placed on the positioning rod of the turntable, and one end of the roll film is pulled out, so that the protective film first goes around the outside of the drum and passes between the drum and the roller, and finally the protective film is covered on the outer surface of the product after it is wound out of the roller. With the start of the winding mechanism, the winding arm begins to rotate, driving the bearing rod, the turntable and the guide structure to move together. At this time, the protective film is smoothly pulled out and gradually covered on the product under the guidance of the roller and the drum. The rotation of the roller enables the protective film to maintain a certain tension, avoiding its slack or wrinkles, ensuring the uniform unfolding and precise guiding of the protective film. The roller is set at the edge of the guide bracket, which plays the role of rolling the protective film against the surface of the product. In addition, the setting of the roller can be used as a reference for cutting the protective film after the lamination is completed.

[0015] In a preferred technical solution of the present invention, the pressing mechanism also includes a pressing drive device, which is fixed above the first placement position, and the output end of the pressing drive device is fixedly connected to the pressing head, and an elastic buffer structure is also arranged between the output end of the pressing drive device and the pressing head.

[0016] During operation, when it is necessary to press the product, the pressing drive device starts, and drives the pressing head downward through its output end. At the moment the pressing head contacts the product, the elastic buffer structure begins to work, absorbing part of the impact force, so that the pressing head can smoothly press the product. As the winding mechanism starts, the protective film is gradually wrapped around the product. When the winding is completed, the pressing drive device starts in the reverse direction, driving the pressing head to rise and leave the product. At this time, the elastic buffer structure works again to ensure that the pressing head can smoothly return to its initial position.

[0017] The addition of the elastic buffer structure enables the pressing head to smoothly absorb shock and buffer when contacting the product, thus avoiding damage to the product.

[0018] In a preferred technical solution of the present invention, a bearing position is provided on the frame, a first guide rail is provided on the bearing position, and the pressing drive device is movably provided on the first guide rail.

[0019] The first guide rail extends along the bearing position, providing a movable track for the pressing drive device. The pressing drive device is movably arranged on the first guide rail, so that the pressing drive device can move forward and backward, left and right, or up and down along the guide rail as needed. This design greatly improves the flexibility and adaptability of the pressing mechanism, allowing the device to easily cope with products of different sizes, shapes and positions. During operation, when it is necessary to press products in different positions, the pressing head can be accurately positioned by simply adjusting the position of the pressing drive device on the first guide rail. In this way, no matter how the size of the product changes, or how the position to be pressed is adjusted, the device can quickly adapt and complete the task.

[0020] In a preferred technical solution of the present invention, a buffer pad is provided at the bottom of the pressing head, and the buffer pad is detachably provided at the bottom of the pressing head.

[0021] The buffer pad can be made of silicone to reduce the damage of the pressing head to the product.

[0022] In a preferred technical solution of the present invention, a cutting structure is provided on the winding arm, and the cutting structure includes a cutting bracket and a cutting knife, and the cutting bracket is fixed on one side of the second placement position;

[0023] The cutting bracket is provided with a second guide rail, the second guide rail is arranged along the height direction of the cutting bracket, and the cutter is movably arranged on the second guide rail.

[0024] The cutter is designed to be movable and mounted on the second guide rail. In this way, when the protective film needs to be cut, the cutter can move up and down along the second guide rail to ensure the accuracy and stability of the cutting. At the same time, the design of the cutter also needs to take into account durability and sharpness to ensure that each cut is clean and neat without leaving burrs or residues. During the working process, when the protective film is wound, the cutting structure begins to work. First, according to the thickness and position of the protective film, adjust the height of the cutter on the second guide rail to ensure that the cutter can accurately cut the protective film. Then, start the driving device of the cutting structure (the driving device can be a motor, a cylinder or other suitable driving method) to drive the cutter to move down along the second guide rail and cut the protective film. After the cutting is completed, the cutter returns to its initial position under the action of the driving device and waits for the next cutting task.

[0025] In a preferred technical solution of the present invention, the winding drive structure includes a handle, the middle part of the winding arm is pivotally connected to the frame, the handle is arranged at the end of the winding arm, and an anti-skid pad is arranged on the handle. The material of the anti-skid pad is usually selected from materials with anti-skid, wear-resistant, comfortable and other characteristics, such as rubber, silicone, etc. Its addition not only increases the friction between the handle and the operator's hand, prevents slipping during operation, but also improves the comfort of the handle, so that the operator can hold it for a long time without feeling tired. During the working process, the operator only needs to hold the handle and drive the winding arm to rotate around the pivot point by applying appropriate force. At the same time, the presence of the anti-skid pad ensures that the operator's hand can firmly hold the handle and maintain a stable grip even in a humid or greasy environment. During the rotation process, the protective film is gradually pulled out and evenly covered on the product under the guidance of the guide structure. When the winding is completed, the winding operation is stopped first, and then the driving device of the cutting structure is started for cutting. Finally, the driving device of the pressing mechanism is started to make the pressing head rise and release the product, and the product that has been wound and cut is taken out.

[0026] In a preferred technical solution of the present invention, the winding drive structure includes a driving motor, a connecting shaft is provided in the middle of the winding arm, and the connecting shaft is pivotally connected to the frame;

[0027] A first bevel gear is arranged on the connecting shaft, a second bevel gear is arranged at the output end of the driving motor, and the first bevel gear is meshed with the second bevel gear.

[0028] In this embodiment, the winding drive structure adopts a motor drive mode to replace the traditional manual operation, thereby achieving a higher degree of automation and efficiency improvement. When the drive motor is started, the drive motor will drive the first bevel gear to rotate through the second bevel gear, and then drive the connecting shaft and the winding arm to rotate together. This bevel gear transmission design not only has the advantages of compact structure, stable transmission ratio, and strong load-bearing capacity, but also can ensure the smooth transmission of power, so that the winding arm can maintain a uniform speed and a stable motion trajectory during the rotation process.

[0029] During the working process, when the winding operation needs to be started, it is only necessary to control the drive motor to start. The motor drives the winding arm to rotate around the connecting shaft through the bevel gear transmission, and the protective film is gradually pulled out and evenly covered on the product under the guidance of the guide structure. When the winding is completed, the control system will control the motor to stop rotating and start the cutting structure to perform the cutting operation. The entire winding process does not require manual intervention and realizes fully automatic operation.

[0030] The beneficial effects of the present invention are:

[0031] The present invention provides an automatic winding device for a protective film, which includes a frame, a pressing mechanism and a winding mechanism. The frame is provided with a first placement position for placing a product; the pressing mechanism is provided on the frame and is located above the first placement position, and the pressing mechanism includes a pressing head, which can be raised and lowered above the first placement position. The winding mechanism includes a winding arm and a winding driving structure, the winding arm can be rotatably provided on the frame, the winding driving structure drives the winding arm to rotate around the axis of the first placement position, and the winding arm is provided with a second placement position for placing a roll film. During use of the device, the product is first placed on the first placement position, and then the pressing mechanism is started to make the pressing head descend and press the product. Then the winding mechanism is started, and the winding driving structure drives the winding arm to start rotating, and at the same time the roll film is pulled out from the second placement position and gradually covers the product. By controlling the rotation speed and number of turns of the winding arm, the requirements of different products for winding the protective film can be met. Finally, when the winding is completed, the pressing head rises to release the product, and the product that has been wound can be taken out. The device realizes the automatic winding process of the protective film through the cooperation of the pressing mechanism and the winding mechanism, without manual operation, which greatly improves the work efficiency and production efficiency. The pressing head presses the product and the winding arm rotates to ensure the close fit and uniform coverage of the protective film, improving the quality and effect of winding. The automated winding process reduces the labor intensity of the operator and avoids the fatigue and inefficiency caused by manual winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional diagram of a protective film automatic winding device provided in an embodiment of the present invention with a roll of film placed thereon;

[0033] Figure 2 is a side view of an automatic protective film winding device provided in an embodiment of the present invention on which a roll of film is placed;

[0034] Figure 3 is a perspective view of an automatic protective film winding device provided in an embodiment of the present invention without a roll film;

[0035] Figure 4 is a perspective view of an automatic protective film winding device provided in an embodiment of the present invention without a roll film;

[0036] Figure 5 is a schematic diagram of a pressing mechanism provided in an embodiment of the present invention;

[0037] Figure 6 is a schematic diagram of the pressing drive device of the present invention being arranged on the first guide rail;

[0038] Figure 7 is a schematic diagram of a cutting structure provided in an embodiment of the present invention being arranged on a winding arm;

[0039] Figure 8 Schematic diagram of the winding drive structure provided in an embodiment of the present invention including a drive motor

[0040] Reference numerals:

[0041] 1. Frame; 11. First placement position; 12. First guide rail; 2. Pressing mechanism; 21. Pressing head; 211. Buffer pad; 22. Pressing drive device; 23. Elastic buffer structure; 3. Winding mechanism; 31. Handle; 32. Winding arm; 321. Connecting shaft; 322. First bevel gear; 33. Load-bearing rod; 34. Turntable; 35. Limit rod; 36. Positioning rod; 4. Pedal; 5. Guide structure; 51. Drum; 52. Roller; 53. Guide bracket; 6. Cutting structure; 61. Cutting bracket; 62. Second guide rail; 63. Cutter; 7. Drive motor; 71. Second bevel gear. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0043] The existing product protective film wrapping and winding operations are mainly completed through manual operation. The operator wraps the protective film on the outer surface of the product and ensures that the winding reaches the specified 2.5 turns. However, this manual laminating method has many shortcomings. First, the efficiency of manual laminating is low; second, when wrapping the protective film, the operator needs to accurately control the strength and speed of the winding to ensure that the protective film can fit tightly on the outer surface of the product while avoiding excessive bubbles or wrinkles. This requirement requires operators to undergo long-term training and practice before they can reach a proficient level. In addition, the manual laminating operation process is labor-intensive. During the laminating process, operators need to carry, rotate, and other operations on the product. These actions not only require a lot of physical strength, but may also cause fatigue or discomfort to the operator due to long-term repetitive operations.

[0044] Based on this, the present application provides a protective film automatic winding device.

[0045] Example 1

[0046] like Figure 1-Figure 8 As shown, this embodiment provides a protective film automatic winding device, comprising:

[0047] The frame 1 is provided with a first placement position 11 for placing products; the design of the first placement position 11 is adapted to products of various shapes and sizes so as to achieve wide applicability.

[0048] The pressing mechanism 2 is arranged on the frame 1 and is located above the first placement position 11. The pressing mechanism 2 includes a pressing head 21. The pressing head 21 can be raised and lowered above the first placement position 11. During operation, the pressing head 21 descends and presses the product to ensure that the product does not move or shake during the winding process, thereby improving the accuracy and stability of the winding.

[0049] The winding mechanism 3 includes a winding arm 32 and a winding drive structure. The winding arm 32 is rotatably arranged on the frame 1. The winding drive structure drives the winding arm 32 to rotate around the axis of the first placement position 11. The winding arm 32 is provided with a second placement position for placing the roll film. The winding arm 32 can drive the protective film to rotate and wrap around the product. The winding arm 32 is provided with a second placement position for placing the roll film. The roll film is pulled out from the second placement position and covered on the product, so that the protective film is automatically wound.

[0050] During use of the device, the product is first placed on the first placement position 11, and then the pressing mechanism 2 is started to make the pressing head 21 descend and press the product. Then the winding mechanism 3 is started, and the winding drive structure drives the winding arm 32 to start rotating, and at the same time the roll film is pulled out from the second placement position and gradually covers the product. By controlling the rotation speed and number of turns of the winding arm 32, the requirements of different products for protective film winding can be met. Finally, when the winding is completed, the pressing head 21 rises to release the product, and the product that has been wound can be taken out. The device realizes the automatic winding process of the protective film through the cooperation of the pressing mechanism 2 and the winding mechanism 3, without manual operation, greatly improving work efficiency and production efficiency. By pressing the product with the pressing head 21 and rotating the winding arm 32, the close fit and uniform coverage of the protective film are ensured, and the quality and effect of the winding are improved. The automated winding process reduces the labor intensity of the operator and avoids the fatigue and inefficiency caused by manual winding.

[0051] Example 2

[0052] This embodiment is improved on the basis of Embodiment 2.

[0053] like Figure 1-Figure 8 As shown, in this embodiment, the winding arm 32 is provided with a bearing rod 33, the bearing rod 33 is provided with a turntable 34, the turntable 34 is provided with a positioning rod 36, and the turntable 34 and the positioning rod 36 form the second placement position. During operation, the roll film is placed on the second placement position formed by the turntable 34 and the positioning rod 36, and the cooperation between the turntable 34 and the positioning rod 36 enables the roll film to be stably placed in the second placement position, avoiding the situation of the roll film shifting or falling off during the winding process, and improving the stability and accuracy of the winding. When the winding mechanism 3 is started, the winding arm 32 starts to rotate, driving the turntable 34 on the bearing rod 33 to rotate together. Due to the cooperation between the turntable 34 and the positioning rod 36, the roll film can be stably placed in the second placement position, and is gradually pulled out with the rotation of the turntable 34, and covered on the product. By controlling the rotation speed and number of turns of the winding arm 32, and adjusting the relative position between the turntable 34 and the positioning rod 36, the requirements of different products for protective film winding can be met. This design not only improves the accuracy and stability of winding, but also makes the entire device more flexible and applicable.

[0054] In this embodiment, a limiting rod 35 is disposed on the bearing rod 33 . The limiting rod 35 is disposed on one side of the positioning rod 36 , and the axis of the limiting rod 35 is parallel to the axis of the positioning rod 36 .

[0055] The main function of the limit rod 35 is to further limit and fix the position of the film roll, ensuring that the film roll will not deviate from the predetermined track due to external force or its own weight during the winding process. The limit rod 35 is arranged on one side of the positioning rod 36, so that a placement space for the film roll is formed between the limit rod 35 and the positioning rod 36, which is convenient for the installation of the film roll. In another embodiment, when the film roll is placed on the second placement position formed by the turntable 34 and the positioning rod 36, the limit rod 35 can also limit the film roll on one side to provide a stable support point for it. In this way, even in the case of high-speed rotation or long-term work, the film roll can maintain a stable state without shaking or deviation.

[0056] Example 3

[0057] This embodiment is improved on the basis of Embodiment 2.

[0058] like Figure 1-Figure 8 As shown, in the present embodiment, a guide structure 5 is further provided on the winding arm 32, and the guide structure 5 includes a guide bracket 53, and the guide bracket 53 is fixed on the winding arm 32, and a roller 52 and a drum 51 are provided on the guide bracket 53, and the roller 52 and the drum 51 are parallel to each other, and the roller 52 and the drum 51 can be rotatably provided on the guide bracket 53, and the roller 52 is located at the edge of the guide bracket 53.

[0059] The guide structure 5 provides a strong guarantee for the smooth unfolding and precise guiding of the protective film during the winding process. During the working process, the protective film is first placed on the positioning rod 36 of the turntable 34, and one end of the roll film is pulled out, so that the protective film first bypasses the outside of the roller 51 and passes between the roller 51 and the roller 52, and finally the protective film is coated on the outer surface of the product after it is wound out of the roller 52. With the start of the winding mechanism 3, the winding arm 32 begins to rotate, driving the bearing rod 33, the turntable 34 and the guide structure 5 to move together. At this time, the protective film is smoothly pulled out and gradually covered on the product under the guidance of the roller 52 and the roller 51. The rotation of the roller 51 enables the protective film to maintain a certain tension, avoiding its slack or wrinkles, and ensuring the uniform unfolding and precise guiding of the protective film. The roller 52 is set at the edge of the guide bracket 53, so that the protective film plays a role of rolling against the surface of the product. In addition, the setting of the roller 52 can be used as a reference for cutting the protective film after the coating is completed.

[0060] Example 4

[0061] This embodiment is improved on the basis of embodiment 1.

[0062] like Figure 1-Figure 8As shown, in this embodiment, a detailed structure of a pressing drive device 22 is provided. The pressing mechanism 2 further includes a pressing drive device 22, which is fixed above the first placement position 11, and the output end of the pressing drive device 22 is fixedly connected to the pressing head 21, and an elastic buffer structure 23 is further provided between the output end of the pressing drive device 22 and the pressing head 21. The pressing drive device 22 can be a cylinder, and the activation of the cylinder can be achieved by a foot switch 4.

[0063] During operation, when it is necessary to press the product, the pressing drive device 22 is started, and the pressing head 21 is driven to move downward through its output end. At the moment when the pressing head 21 contacts the product, the elastic buffer structure 23 begins to work, absorbing part of the impact force, so that the pressing head 21 can smoothly press the product. With the start of the winding mechanism 3, the protective film is gradually wrapped around the product. When the winding is completed, the pressing drive device 22 is started in the reverse direction, driving the pressing head 21 to rise and leave the product. At this time, the elastic buffer structure 23 works again to ensure that the pressing head 21 can smoothly return to the initial position.

[0064] The addition of the elastic buffer structure 23 enables the pressing head 21 to smoothly absorb shock and provide buffering when contacting the product, thereby avoiding damage to the product.

[0065] In a more preferred implementation manner of this embodiment, a bearing position is provided on the frame 1 , a first guide rail 12 is provided on the bearing position, and the pressing drive device 22 is movably provided on the first guide rail 12 .

[0066] The first guide rail 12 extends along the bearing position, providing a movable track for the pressing drive device 22. The pressing drive device 22 is movably arranged on the first guide rail 12, so that the pressing drive device 22 can move forward and backward, left and right, or up and down along the guide rail as needed. This design greatly improves the flexibility and adaptability of the pressing mechanism 2, allowing the device to easily cope with products of different sizes, shapes and positions. During operation, when it is necessary to press products in different positions, the pressing head 21 can be accurately positioned by simply adjusting the position of the pressing drive device 22 on the first guide rail 12. In this way, no matter how the size of the product changes, or how the position to be pressed is adjusted, the device can quickly adapt and complete the task.

[0067] In addition, in this embodiment, a buffer pad 211 is disposed at the bottom of the pressing head 21 , and the buffer pad 211 is detachably disposed at the bottom of the pressing head 21 .

[0068] The buffer pad 211 can be made of silicone, which can reduce the damage of the pressing head 21 to the product.

[0069] Example 5

[0070] This embodiment is improved on the basis of embodiment 4.

[0071] like Figure 1-Figure 8 As shown, in this embodiment, a cutting structure 6 is provided on the winding arm 32, and the cutting structure 6 includes a cutting bracket 61 and a cutting knife 63, and the cutting bracket 61 is fixed on one side of the second placement position;

[0072] The cutting bracket 61 is provided with a second guide rail 62 , which is arranged along the height direction of the cutting bracket 61 , and the cutter 63 is movably arranged on the second guide rail 62 .

[0073] The cutter 63 is designed to be movable and is mounted on the second guide rail 62. In this way, when the protective film needs to be cut, the cutter 63 can move up and down along the second guide rail 62 to ensure the accuracy and stability of the cutting. At the same time, the design of the cutter 63 also needs to take into account durability and sharpness to ensure that each cut is clean and neat without leaving burrs or residues. During operation, when the protective film is wound, the cutting structure 6 begins to work. First, according to the thickness and position of the protective film, adjust the height of the cutter 63 on the second guide rail 62 to ensure that the cutter 63 can accurately cut the protective film. Then, start the driving device of the cutting structure 6 (the driving device can be a motor, a cylinder or other suitable driving method) to drive the cutter 63 to move downward along the second guide rail 62 and cut the protective film. After the cutting is completed, the cutter 63 returns to the initial position under the action of the driving device, waiting for the next cutting task.

[0074] Example 6

[0075] This embodiment provides an implementation of a winding drive structure.

[0076] like Figure 1-Figure 8As shown, in this embodiment, the rotation of the winding arm 32 of this embodiment is driven manually. The winding drive structure includes a handle 31, the middle part of the winding arm 32 is pivoted to the frame 1, the handle 31 is arranged at the end of the winding arm 32, and an anti-skid pad is arranged on the handle 31. The material of the anti-skid pad is usually selected from materials with anti-skid, wear-resistant, comfortable and other characteristics, such as rubber, silicone, etc. Its addition not only increases the friction between the handle 31 and the operator's hand, preventing slippage during operation, but also improves the comfort of the handle 31, so that the operator can hold it for a long time without feeling tired. During the working process, the operator only needs to hold the handle 31 and drive the winding arm 32 to rotate around the pivot point by applying appropriate force. At the same time, the presence of the anti-skid pad ensures that the operator's hand can firmly hold the handle 31, and can maintain a stable grip even in a humid or greasy environment. During the rotation process, the protective film is gradually pulled out and evenly covered on the product under the guidance of the guide structure 5. After winding is completed, the winding operation is stopped first, and then the driving device of the cutting structure is started to cut. Finally, the driving device of the pressing mechanism 2 is started to make the pressing head 21 rise and release the product, and the product that has been wound and cut is taken out.

[0077] Example 7

[0078] This embodiment provides another implementation of a winding drive structure.

[0079] like Figure 1-Figure 8 As shown, different from the embodiment 6, in this embodiment, the winding drive structure includes a driving motor 7, and a connecting shaft 321 is provided in the middle of the winding arm 32, and the connecting shaft 321 is pivotally connected to the frame 1;

[0080] The connecting shaft 321 is provided with a first bevel gear 322 , and the output end of the driving motor 7 is provided with a second bevel gear 71 . The first bevel gear 322 is meshed with the second bevel gear 71 .

[0081] In this embodiment, the winding drive structure adopts a motor drive mode to replace the traditional manual operation, thereby achieving a higher degree of automation and efficiency improvement. When the drive motor 7 is started, the drive motor 7 will drive the first bevel gear 322 to rotate through the second bevel gear 71, and then drive the connecting shaft 321 and the winding arm 32 to rotate together. This bevel gear transmission design not only has the advantages of compact structure, stable transmission ratio, and strong load-bearing capacity, but also can ensure the smooth transmission of power, so that the winding arm 32 can maintain a uniform speed and a stable motion trajectory during the rotation process.

[0082] During the working process, when the winding operation needs to be started, it is only necessary to control the drive motor 7 to start. The motor drives the winding arm 32 to rotate around the connecting shaft 321 through the bevel gear transmission, and the protective film is gradually pulled out and evenly covered on the product under the guidance of the guide structure 5. When the winding is completed, the control system will control the motor to stop rotating and start the cutting structure to perform the cutting operation. The entire winding process does not require manual intervention, and fully automated operation is achieved.

[0083] In a more preferred embodiment, a counting device can be provided on the winding arm 32 to realize automatic counting of the number of rotations of the winding arm 32. There are many specific implementation methods of the counting device, for example, a photoelectric sensor, a magnetic sensor or a mechanical counter can be used. Taking the photoelectric sensor as an example, the photoelectric sensor is composed of a light-emitting element and a light-receiving element. When the winding arm 32 rotates, it blocks or reflects the light of the photoelectric sensor, thereby triggering a counting signal. Each time the winding arm 32 rotates one circle, the counting device will record it once, and display the counting data in real time through a display screen or a transmission interface.

[0084] During operation, when the winding operation is started, the counting device starts working at the same time. As the winding arm 32 rotates, the photoelectric sensor continuously emits and receives light, and each rotation triggers a counting signal. When the counting device reaches a preset number of times, the winding drive structure stops running, and the protective film winding is completed.

[0085] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0086] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0087] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A protective film automatic winding device, characterized in that: include: A frame (1), wherein the frame (1) is provided with a first placement position (11) for placing a product; A pressing mechanism (2), the pressing mechanism (2) being arranged on the frame (1) and located above the first placement position (11), the pressing mechanism (2) comprising a pressing head (21), the pressing head (21) being arranged above the first placement position (11) in a manner that allows it to be lifted; A winding mechanism (3), the winding mechanism (3) comprising a winding arm (32) and a winding drive structure, the winding arm (32) being rotatably arranged on the frame (1), the winding drive structure driving the winding arm (32) to rotate around the axis of the first placement position (11), and the winding arm (32) being provided with a second placement position for placing a roll of film.

2. The automatic protective film winding device according to claim 1 is characterized in that: The winding arm (32) is provided with a bearing rod (33), the bearing rod (33) is provided with a rotating disk (34), the rotating disk (34) is provided with a positioning rod (36), and the rotating disk (34) and the positioning rod (36) form the second placement position.

3. The automatic protective film winding device according to claim 2 is characterized in that: A limiting rod (35) is provided on the bearing rod (33), the limiting rod (35) is provided on one side of the positioning rod (36), and the axis of the limiting rod (35) is parallel to the axis of the positioning rod (36).

4. The automatic protective film winding device according to claim 2 is characterized in that: The winding arm (32) is also provided with a guide structure (5), the guide structure (5) comprising a guide bracket (53), the guide bracket (53) being fixed on the winding arm (32), the guide bracket (53) being provided with a roller (52) and a drum (51), the roller (52) and the drum (51) being parallel to each other, and the roller (52) and the drum (51) being rotatably provided on the guide bracket (53), and the roller (52) being located at the edge of the guide bracket (53).

5. The automatic protective film winding device according to any one of claims 1 to 4, characterized in that: The pressing mechanism (2) further comprises a pressing drive device (22), the pressing drive device (22) being fixed above the first placement position (11), the output end of the pressing drive device (22) being fixedly connected to the pressing head (21), and an elastic buffer structure (23) being provided between the output end of the pressing drive device (22) and the pressing head (21).

6. The automatic protective film winding device according to claim 5, characterized in that: The frame (1) is provided with a bearing position, the bearing position is provided with a first guide rail (12), and the pressing drive device (22) is movably arranged on the first guide rail (12).

7. The automatic protective film winding device according to claim 5, characterized in that: A buffer pad (211) is provided at the bottom of the pressing head (21), and the buffer pad (211) is detachably provided at the bottom of the pressing head (21).

8. The automatic protective film winding device according to claim 7, characterized in that: The winding arm (32) is provided with a cutting structure (6), the cutting structure (6) comprising a cutting support (61) and a cutting knife (63), the cutting support (61) being fixed on one side of the second placement position; The cutting bracket (61) is provided with a second guide rail (62), the second guide rail (62) is arranged along the height direction of the cutting bracket (61), and the cutting knife (63) is movably arranged on the second guide rail (62).

9. The automatic protective film winding device according to claim 1, characterized in that: The winding drive structure comprises a handle (31), the middle part of the winding arm (32) is pivotally connected to the frame (1), the handle (31) is arranged at the end of the winding arm (32), and an anti-slip pad is arranged on the handle (31).

10. The automatic protective film winding device according to claim 1, characterized in that: The winding drive structure comprises a driving motor (7); a connecting shaft (321) is provided in the middle of the winding arm (32); and the connecting shaft (321) is pivotally connected to the frame (1); A first bevel gear (322) is arranged on the connecting shaft (321), a second bevel gear (71) is arranged at the output end of the driving motor (7), and the first bevel gear (322) is meshed with the second bevel gear (71).

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