Protective self-cooling film cutting machine

Abstract

The invention discloses a protection type self-cooling film cutting machine, and relates to the technical field of film cutting, the protection type self-cooling film cutting machine comprises an operation base station, a guide module is mounted on the rear side of the upper part of the operation base station, a tension module is mounted in the middle of the upper part of the operation base station, a cutting bin is mounted on the front side of the upper part of the operation base station, and a fluctuation cutting mechanism is arranged in the cutting bin; a multi-position integrated mechanism is arranged on the front side of the operation base table, the fluctuation cutting mechanism is used for cutting a film body in a smooth movement mode, the multi-position integrated mechanism is used for conducting centralized follow-up treatment on the cut film body, the movement in a sine curve mode is adopted, and the speed and the accelerated speed of a cutting blade during movement are continuously changed. The situation that the cutting blade suddenly changes from the maximum value to zero or suddenly changes from zero to the maximum value is avoided, then the acceleration and deceleration changes of the cutting blade during direction change are smoother, meanwhile, the impact force generated by sudden speed change is reduced, and therefore the mechanical stress of the cutting tool is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of film cutting, in particular to a protective self-cooling film cutting machine. Background Art

[0002] The main function of the existing film cutting machine is to accurately cut large rolls of food-grade film according to predetermined sizes to meet the needs of different food packaging. This equipment is widely used in food packaging, cling film, candy packaging and other fields.

[0003] In a Chinese patent with patent announcement number CN210500392U, an automatic film cutting machine is disclosed, including: a frame, a driving motor, a conveyor belt body, a transmission belt and a cutting knife body. The driving motor is fixed on the inner side of the frame, the output shaft and the bottom end of the transmission belt are connected to each other, a functional groove is opened on the control cylinder, and the functional groove is fitted with the top of the trigger rod, and the trigger rod passes through the limit sleeve, a mounting plate is fixed at the bottom of the trigger rod, and the cutting knife body is fixed on the bottom surface of the mounting plate, and a reset spring is fixed on the top of the mounting plate, and the top of the reset spring is fixed to the bottom of the limit sleeve. The automatic film cutting machine adopts a new structural design, so that the transmission structure in the device can temporarily stop the film conveying when the cutting knife body is cutting, and can resume the conveying after the cutting is completed, so as to achieve the effect of cooperating with the action of the cutting knife body and performing intermittent conveying.

[0004] However, the above-mentioned patent documents and the equipment in the prior art still have the following defects when used specifically: 1. Compared with the intermittent cutting method adopted in the above-mentioned patent documents, since the equipment needs to be started and stopped for each cutting, and the film will have a slight displacement deviation during the static and starting process, it will cause a certain error in the size of the film after cutting, and the frequent starting and stopping of the film conveying will also increase the wear of the transmission structure and related control components, such as motors, transmission belts and clutch components. Frequent starting and stopping will generate greater impact and friction, accelerating the aging and damage of these components, which not only increases the maintenance cost of the equipment, but also causes production interruptions during equipment maintenance, further affecting production efficiency.

[0005] 2. In the actual use of the above-mentioned equipment, the tool still adopts the traditional linear reciprocating motion. However, during actual cutting, after the tool moves from one direction to the extreme position, it needs to quickly change direction for the next cutting. During this process, the acceleration and deceleration will change suddenly. For example, when the tool reaches the positive extreme position downward and completes the cutting, the speed instantly changes from the positive maximum value to zero, and then accelerates in the reverse direction. This sudden change will cause a large impact force, and it takes a certain amount of time to complete the speed conversion process. The sudden change in speed will cause a large impact force. According to Newton's second law, when the acceleration suddenly changes, the force acting on the tool will also suddenly change. This sudden impact force will have an adverse effect on the tool, cutting material and the mechanical structure of the equipment, such as increased tool wear, reduced edge quality of the cutting material, increased equipment vibration, etc.

[0006] In view of this, the present invention proposes a protective self-cooling film cutting machine to make up for and improve the deficiencies of the prior art. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a protective self-cooling film cutting machine to solve the technical problems raised in the above background technology.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is: a protective self-cooling film cutting machine, used for cutting the film body, including an operating base, a guide module is installed on the rear side above the operating base, a tension module is installed in the middle part above the operating base, a cutting bin is installed on the front side above the operating base, a wave cutting mechanism is arranged inside the cutting bin, and a multi-in-one mechanism is arranged on the front side of the operating base, the wave cutting mechanism is used to cut the film body in a smooth motion, and the multi-in-one mechanism is used to perform centralized subsequent processing on the cut film body.

[0009] Furthermore, the wave cutting mechanism includes a center disk symmetrically rotatably connected to the inner wall of the cutting chamber, a bending rod is installed on the side of the center disk close to each other, and a cutting blade is rotatably connected to the side of the bending rod close to each other, the surface of the bending rod is fixedly connected to a connecting shaft, the outer wall of the connecting shaft is installed with a buffer rail, and the buffer rail is slidably connected to the inner wall of the cutting chamber.

[0010] Furthermore, both sides of the cutting blade are gradually curved incomplete arc pieces, the intersection of the arc pieces is the cutting position of the cutting blade, and the surface of the cutting blade is provided with a rectangular groove, and the rectangular groove is located above the cutting position of the cutting blade.

[0011] Furthermore, the center disk is fixedly connected to the outer wall of the output shaft end of the driving motor in the cutting chamber, and a cylindrical protrusion is fixedly connected at the eccentric position of the center disk. The center disk and the crank rod are rotationally connected through the cylindrical protrusion.

[0012] Furthermore, the connecting shaft is located slightly above the center position of the crankshaft, and the center disk is rotationally connected to the buffer rail via the connecting shaft.

[0013] Furthermore, the multi-in-one mechanism includes a storage bin slidably connected to the front side wall of the working base, the storage bin is internally rotatably connected to a through shaft, the outer wall of the through shaft is symmetrically installed with a threaded sleeve, the side walls of the threaded sleeve are installed with a hinge group, a placement plate is installed at one end of the hinge group away from the threaded sleeve, transmission components are installed at both ends of the through shaft, and the side walls of the storage bin are symmetrically rotatably connected with a guide group.

[0014] Furthermore, the transmission assembly includes a large wheel disc, a small wheel disc and a transmission belt, the large wheel disc in the transmission assembly is fixedly connected to the through shaft, the small wheel disc in the transmission assembly is fixedly connected to the rotating shaft in the cutting chamber, and the radius size ratio of the large wheel disc and the small wheel disc in the transmission assembly is five to one.

[0015] Furthermore, thread grooves are symmetrically provided on the surface of the through-shaft, and a ball screw structure is formed between the through-shaft and the threaded sleeve.

[0016] Furthermore, the hinge group is composed of a combination of no less than four rectangular plates, and every two rectangular plates form a group, and the two ends of the rectangular plates in the hinge group are respectively rotatably connected to the threaded sleeve and the placement plate.

[0017] Furthermore, the placement plate is installed in a downwardly inclined manner, the placement plate is slidably connected to the inner wall of the storage bin, and the placement plate is initially located at the top inside the storage bin, and the guide group is composed of a plurality of threaded rods.

[0018] Furthermore, the guide module includes a guide base and a plurality of guide rollers. The guide base in the guide module is fixedly connected to the upper surface of the working base, and the guide rollers in the guide module are transmission-connected to the film body.

[0019] Furthermore, the tension module comprises a tension detection roller, a synchronous belt and a synchronous wheel, and the tension detection roller in the tension module is used to monitor the tension of the film body in real time.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In order to improve the influence of the sudden impact force during the cutting process on the cutting blade, the present device periodically rotates the center disk and cooperates with the buffer rail to limit the cutting blade, so that the cutting blade can move in a sinusoidal form. By adopting the sinusoidal motion, the speed and acceleration of the cutting blade change continuously during movement, and there will be no sudden change from the maximum value to zero or from zero to the maximum value. As a result, the acceleration and deceleration changes of the cutting blade during direction change are smoother, while reducing the impact force caused by the sudden change in speed, thereby reducing the mechanical stress of the tool itself and extending its service life. The smooth transition of acceleration reduces the instantaneous load of the tool during the cutting process, effectively reduces tool wear, maintains the sharpness of the blade, and thereby improves the cutting accuracy and stability. In addition, the cutting method of sinusoidal motion can also ensure that the cutting force is more evenly distributed throughout the cutting process, avoiding excessive local pressure on the material during cutting, thereby reducing tearing and burrs at the edge of the material and improving the edge quality of the cut material.

[0021] Compared with the step-by-step cutting method used in the prior art, the curve fluctuation mode introduced by this device also has the following advantages: First, the sinusoidal motion mode shortens the time required for the cutting blade to change direction, can maintain a relatively stable cutting speed, and does not require frequent start and stop operations, thereby improving the continuity and efficiency of the cutting action, allowing the equipment to perform stable cutting at a higher speed, thereby ensuring the cutting quality while improving the overall production efficiency.

[0022] Second: The smooth transition movement mode reduces the sudden change of acceleration, which directly reduces the vibration and noise of the equipment during operation. The lower vibration helps to maintain the precise coordination of various parts of the equipment and reduce the error accumulation caused by vibration. This not only improves the operating environment, but also improves the overall stability and reliability of the equipment.

[0023] Among them, the cutting edge of the cutting blade is designed to be a gradual arc. In the process of cutting in and out of the film, the contact between the cutting edge and the film changes gradually, thereby reducing the instantaneous stress concentration phenomenon in the film. At the same time, when cutting into the film, since the cutting edge is a gradual arc, it can enter the film more smoothly, reduce the resistance during cutting, and thus reduce the jamming phenomenon during cutting. When cutting out the film, the arc-shaped cutting edge can also gradually reduce the force, which helps to avoid curling or deformation of the edge of the film due to the sudden loss of a large cutting force during cutting.

[0024] Among them, rectangular grooves are evenly opened on the surface of the cutting blade and are located above the cutting position. Therefore, when the cutting blade cuts downward, the gas drifting to both sides from the cutting edge will flow along the arc and then be guided by the rectangular grooves to form an airflow. This airflow can effectively blow away the debris generated when cutting the film. The timely blowing away of the debris makes the cutting process smoother, reduces the cutting deviation caused by the interference of the debris, and at the same time reduces the time of equipment downtime for cleaning, improves the continuity of the cutting operation, and increases the amount of film cutting per unit time.

[0025] (2) The device drives the hinge group to descend by driving the through-axis to move outward, thereby causing the placement plate to move downward synchronously. This dynamic adjustment method ensures that the cut film can be stacked on the placement plate in an orderly manner, thereby keeping the film in a neatly stacked state at all times, which is convenient for subsequent packaging, transportation and other operations. In addition, with the dynamic movement of the placement plate, it also ensures that the landing point of the cut film remains unchanged at all times, avoiding the film from being scattered everywhere due to high stacking, thereby maintaining the stability of the film during the collection process. At the same time, for environments such as cutting film that require continuous production, this storage method can ensure that the film can be collected in an orderly manner immediately after cutting, and the production process will not be interrupted due to stacking problems, thereby improving the overall production efficiency and stability.

[0026] Compared with the prior art which requires workers to manually perform multiple steps such as alignment, resetting and storage, the present device can achieve the same effect through the linkage of the through-axis and the articulated group with only one continuous mechanical movement process, which greatly simplifies the collection process, thereby reducing the complexity of the equipment and the cumbersomeness of operation. It is easier for operators to master and operate, reducing the possibility of operational errors. The present device also reduces the equipment conversion and adjustment time in multiple steps, thereby improving the reliability of the entire collection process, and the entire collection process will not be interrupted due to a failure in a certain step.

[0027] Among them, the device installs several threaded rods on the transmission path of the film. The design of the threaded shaft greatly reduces the contact area between it and the surface of the film compared to the cylindrical shaft. This reduced contact area helps to reduce the friction of the film during the transmission process, thereby reducing scratches, wear or static electricity on the surface of the film, maintaining the integrity and quality of the film, and the threaded structure on the threaded shaft can provide better guidance and support for the film, preventing the film from deflecting or wrinkling during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the cutting chamber in the present invention.

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the wave cutting mechanism in the present invention.

[0031] Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged three-dimensional structure in the middle.

[0032] Figure 5 It is a schematic diagram of the local planar structure of the wave cutting mechanism in the present invention.

[0033] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of the three-dimensional structure at point B in the middle.

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the multi-in-one mechanism in the present invention.

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the transmission component in the present invention.

[0036] Fig. 9 It is a schematic diagram of the internal three-dimensional structure of the storage bin in the present invention.

[0037] Fig.10 For the present invention Fig. 9 Schematic diagram of the partially enlarged three-dimensional structure at point C in the middle.

[0038] The numbers in the figure are: working base; 11, guide module; 12, tension module; 13, cutting chamber; 14, film body.

[0039] Wave cutting mechanism; 21. center disk; 22. crank rod; 23. cutting blade; 24. connecting shaft; 25. buffer rail.

[0040] 3. Multi-in-one mechanism; 31. Storage bin; 32. Through shaft; 33. Threaded sleeve; 34. Articulated group; 35. Placement plate; 36. Transmission assembly; 37. Guide group. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that the structures and working principles of the above-mentioned working base 1, guide module 11, tension module 12, cutting chamber 13 and film body 14 belong to the prior art and will not be described in detail here.

[0043] Example 1: Please refer to Figure 1 and Figure 2 As shown, a protective self-cooling film cutting machine is used for cutting a film body 14, including an operating base 1, a guide module 11 is installed on the rear side above the operating base 1, a tension module 12 is installed in the middle part above the operating base 1, a cutting chamber 13 is installed on the front side above the operating base 1, a wave cutting mechanism 2 is arranged inside the cutting chamber 13, a multi-in-one mechanism 3 is arranged on the front side of the operating base 1, the wave cutting mechanism 2 is used for cutting the film body 14 in a smooth motion, and the multi-in-one mechanism 3 is used for centralized subsequent processing of the cut film body 14.

[0044] It should be noted that the guide module 11 includes a guide base and a plurality of guide rollers. The guide base in the guide module 11 is fixedly connected to the upper surface of the working base 1. The guide rollers in the guide module 11 are transmission connected to the film body 14. The tension module 12 includes a tension detection roller, a synchronous belt and a synchronous wheel. The tension detection roller in the tension module 12 is used to monitor the tension of the film body 14 in real time.

[0045] Please refer to Figures 2 to 6 As shown, the wave cutting mechanism 2 includes a center disk 21 symmetrically rotatably connected to the inner wall of the cutting chamber 13, a bending rod 22 is installed on the side of the center disk 21 close to each other, and a cutting blade 23 is rotatably connected to the side of the bending rod 22 close to each other, and a connecting shaft 24 is fixedly connected to the surface of the bending rod 22, and a buffer rail 25 is installed on the outer wall of the connecting shaft 24, and the buffer rail 25 is slidably connected to the inner wall of the cutting chamber 13.

[0046] It should be noted that the center disk 21 is fixedly connected to the outer wall of the output shaft end of the driving motor in the cutting chamber 13, and a cylindrical protrusion is fixedly connected at the eccentric position of the center disk 21. The center disk 21 and the crankshaft 22 are rotationally connected through the cylindrical protrusion. The connecting shaft 24 is located slightly above the center position of the crankshaft 22, and the center disk 21 is rotationally connected to the buffer rail 25 through the connecting shaft 24.

[0047] Specifically, Figure 2 and Figure 3 As shown, since the central disks 21 symmetrically distributed inside the cutting chamber 13 are all fixedly connected to the outer wall of the output shaft end of the driving motor, when the device is in operation, the central disks 21 will rotate synchronously with the output shaft end.

[0048] The rotation of the center disk 21 itself is a process of periodic circular motion. Since the crankshaft 22 is connected to the eccentric position of the center disk 21, during the rotation of the center disk 21, the connection point of the crankshaft 22 also performs circular motion on the center disk 21. Because it is an eccentric connection, the distance from the connection point to the center of the center disk 21 is fixed, but its projection relative to the horizontal direction will change periodically with the rotation of the center disk 21. From the vertical direction, when the connection point is at the top of the center disk 21, the vertical displacement is the largest. When the connection point is turned to the horizontal position of the center disk 21, the vertical displacement is zero. When the connection point is turned to the bottom of the center disk 21, the vertical displacement reaches the negative maximum value. The change in this vertical displacement is like a sine function, which changes periodically from the maximum value to the minimum value and then to the maximum value. Similarly, in the horizontal direction, the projection of the connection point relative to the horizontal direction will also change periodically with the rotation of the center disk 21. This change pattern is also similar to the sine function. Therefore, the crankshaft 22 will perform regular sinusoidal wave motion with the rotation of the center disk 21.

[0049] The sinusoidal motion trajectory is a continuously changing curve. For the movement of the cutting blade 23, its speed changes according to the law of the sine function. Near the direction change point, the speed change is a smooth transition. Taking the horizontal reciprocating motion of the cutting blade 23 as an example, the motion equation of the cutting blade 23 is assumed to be x=Asin(ωt), where A is the amplitude of the motion and is related to the cutting stroke, ω is the angular frequency and is related to the cutting frequency, and t is time. In the sinusoidal motion, the speed v=dt / dx=Aωcos(ωt), the acceleration a=dt / dv=−Aω²sin(ωt), it can be seen that the speed and acceleration are both continuously changing functions, and there is no sudden change from the maximum value to zero or from zero to the maximum value in an instant during the straight-line movement. This means that when the direction is changed, it is not necessary to spend extra time to overcome the impact of the sudden change like in straight-line motion, thereby shortening the time for the direction change.

[0050] Therefore, by adopting the movement in the form of a sinusoidal curve, the speed and acceleration of the cutting blade 23 during movement change continuously, and there will be no sudden change from the maximum value to zero or from zero to the maximum value. As a result, the acceleration and deceleration changes of the cutting blade 23 during direction change are smoother, while reducing the impact force caused by the sudden change in speed, thereby reducing the mechanical stress of the tool itself, and the smooth transition of acceleration reduces the instantaneous load of the tool during the cutting process, thereby improving the cutting accuracy and stability.

[0051] It should be noted that both sides of the cutting blade 23 are gradually curved incomplete arc-shaped pieces, the intersection of the arc-shaped pieces is the cutting position of the cutting blade 23, and the surface of the cutting blade 23 is provided with a rectangular groove, and the rectangular groove is located above the cutting position of the cutting blade 23.

[0052] Specifically, when the cutting blade 23 cuts downward, from the perspective of fluid dynamics, the air at the cutting edge will flow due to the interaction between the cutting edge and the film body 14. Since the cutting blade 23 is a gradually curved incomplete arc-shaped piece, this shape will guide the air during the cutting process, causing the air to flow to both sides. Since the rectangular groove is located above the cutting position, when the air is guided by the cutting edge and the arc-shaped piece to flow to both sides, the rectangular groove can serve as a channel for air flow, changing the flow path and velocity distribution of the air. According to Bernoulli's principle, when the fluid velocity increases, the pressure decreases. Therefore, during the cutting process, the air flow velocity near the rectangular groove will increase, thereby forming a low-pressure area, which in turn helps to attract and blow away the debris generated by the cutting, thereby avoiding the accumulation of debris at the cutting position.

[0053] Example 2: Based on implementation 1, please refer to Figures 7 to 10 As shown, the multi-in-one mechanism 3 includes a storage bin 31 slidably connected to the front side wall of the working base 1, the storage bin 31 is internally rotatably connected to a through shaft 32, the outer wall of the through shaft 32 is symmetrically installed with a threaded sleeve 33, the side walls of the threaded sleeve 33 are installed with a hinge group 34, the end of the hinge group 34 away from the threaded sleeve 33 is installed with a placement plate 35, both ends of the through shaft 32 are installed with a transmission assembly 36, and the side walls of the storage bin 31 are symmetrically rotatably connected with a guide group 37.

[0054] It should be noted that the transmission assembly 36 includes a large wheel disc, a small wheel disc and a transmission belt. The large wheel disc in the transmission assembly 36 is fixedly connected to the through-shaft 32, and the small wheel disc in the transmission assembly 36 is fixedly connected to the rotating shaft in the cutting bin 13. The radius size ratio of the large wheel disc and the small wheel disc in the transmission assembly 36 is five to one. The surface of the through-shaft 32 is symmetrically provided with thread grooves. A ball screw structure is formed between the through-shaft 32 and the threaded sleeve 33. The hinge group 34 is composed of a combination of no less than four rectangular plates, and every two rectangular plates form a group. The two ends of the rectangular plates in the hinge group 34 are respectively rotatably connected to the threaded sleeve 33 and the placement plate 35. The placement plate 35 is installed in a downward tilted manner. The placement plate 35 is slidably connected to the inner wall of the storage bin 31, and the placement plate 35 is initially located at the top inside the storage bin 31. The guide group 37 is composed of a plurality of threaded rods.

[0055] Specifically, when the device is in operation, such as Fig. 9As shown, the large wheel in the transmission assembly 36 will synchronously drive the through shaft 32 to rotate together. Since the through shaft 32 and the threaded sleeve 33 are similar to the ball screw structure, and the pitch of the through shaft 32 is equal to the inner diameter of the threaded sleeve 33, and the angle between the tangent of the thread and the cylinder and the horizontal plane is greater than 45 degrees, when the through shaft 32 is in continuous rotation, the threaded sleeve 33 will be synchronously driven to move linearly along the outer wall of the through shaft 32. As the threaded sleeve 33 gradually moves away, the rectangular plate in the hinge group 34 gradually tilts, thereby driving The placement plate 35 is moved downward along the inner wall of the storage bin 31. This dynamic adjustment method ensures that the cut film bodies 14 can be stacked on the placement plate 35 in an orderly manner, so that the film bodies 14 always maintain a neatly stacked state, which is convenient for subsequent packaging, transportation and other operations. In addition, with the dynamic movement of the placement plate 35, it is also ensured that the landing point of the cut film bodies 14 always remains unchanged, avoiding the film bodies 14 from scattering due to high stacking, thereby maintaining the stability of the film bodies 14 during the collection process.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective self-cooling film cutting machine, used for cutting a film body (14), comprising an operating platform (1), a guide module (11) being installed on the rear side above the operating platform (1), a tension module (12) being installed on the middle part above the operating platform (1), and a cutting chamber (13) being installed on the front side above the operating platform (1), characterized in that: The cutting chamber (13) is provided with an undulating cutting mechanism (2) inside, and the front side of the working platform (1) is provided with a multi-in-one mechanism (3), the undulating cutting mechanism (2) is used to cut the film body (14) in a gentle motion, and the multi-in-one mechanism (3) is used to carry out centralized post-processing on the cut film body (14); the undulating cutting mechanism (2) comprises a central disk (21) symmetrically connected to the inner side wall of the cutting chamber (13), and the central disk (21) is provided with a bending rod (22) on one side close to each other, and the bending rods (22) are mutually connected. A cutting blade (23) is rotatably connected to the side close to the cutting blade (23); the surface of the crank rod (22) is fixedly connected to a connecting shaft (24); the outer wall of the connecting shaft (24) is installed with a buffer rail (25); the buffer rail (25) is slidably connected to the inner wall of the cutting chamber (13); both sides of the cutting blade (23) are gradually curved incomplete arc-shaped pieces, the intersection of the arc-shaped pieces is the cutting position of the cutting blade (23); the surface of the cutting blade (23) is provided with a rectangular groove, and the rectangular groove is located slightly above the cutting position of the cutting blade (23).

2. The protective self-cooling film cutting machine according to claim 1, characterized in that: The center disk (21) is fixedly connected to the outer wall of the output shaft end of the driving motor in the cutting chamber (13), and cylindrical protrusions are fixedly connected at eccentric positions of the center disk (21). The center disk (21) and the crank rod (22) are rotationally connected via the cylindrical protrusions.

3. The protective self-cooling film cutting machine according to claim 1, characterized in that: The connecting shaft (24) is located slightly above the center position of the crank rod (22), and the center disk (21) is rotationally connected to the buffer rail (25) via the connecting shaft (24).

4. The protective self-cooling film cutting machine according to claim 1, characterized in that: The multi-in-one mechanism (3) comprises a storage bin (31) slidably connected to the front side wall of the working platform (1); a through shaft (32) is rotatably connected inside the storage bin (31); a threaded sleeve (33) is symmetrically mounted on the outer wall of the through shaft (32); a hinge group (34) is mounted on the side wall of the threaded sleeve (33); a placement plate (35) is mounted on one end of the hinge group (34) away from the threaded sleeve (33); transmission assemblies (36) are mounted on both ends of the through shaft (32); and a guide group (37) is symmetrically rotatably connected to the side wall of the storage bin (31).

5. The protective self-cooling film cutting machine according to claim 4, characterized in that: The transmission assembly (36) comprises a large wheel disc, a small wheel disc and a transmission belt. The large wheel disc in the transmission assembly (36) is fixedly connected to the through-shaft (32), the small wheel disc in the transmission assembly (36) is fixedly connected to the rotating shaft in the cutting chamber (13), and the radius size ratio of the large wheel disc to the small wheel disc in the transmission assembly (36) is five to one.

6. The protective self-cooling film cutting machine according to claim 4, characterized in that: The surface of the through-shaft (32) is symmetrically provided with thread grooves, and a ball screw structure is formed between the through-shaft (32) and the threaded sleeve (33).

7. The protective self-cooling film cutting machine according to claim 4, characterized in that: The hinge group (34) is composed of a combination of no less than four rectangular plates, with two rectangular plates forming a group. The two ends of the rectangular plates in the hinge group (34) are respectively rotatably connected to the threaded sleeve (33) and the placement plate (35).

8. The protective self-cooling film cutting machine according to claim 4, characterized in that: The placement plate (35) is installed in a downwardly inclined manner, the placement plate (35) is slidably connected to the inner wall of the storage bin (31), and the placement plate (35) is initially located at the top inside the storage bin (31), and the guide group (37) is composed of a plurality of threaded rods.

9. The protective self-cooling film cutting machine according to claim 1, characterized in that: The guide module (11) comprises a guide base and a plurality of guide rollers; the guide base in the guide module (11) is fixedly connected to the upper surface of the operating base (1); and the guide rollers in the guide module (11) are transmission-connected to the film body (14).

10. The protective self-cooling film cutting machine according to claim 1, characterized in that: The tension module (12) comprises a tension detection roller, a synchronous belt and a synchronous wheel, and the tension detection roller in the tension module (12) is used to monitor the tension of the film body (14) in real time.

Images