Profile Film Coating Equipment

Abstract

Profile film laminating equipment relates to the technical field of profile packaging, including a profile conveying device, a film laminating device and a film cutting device. The film cutting device is provided with two sets of cutting knife mechanisms, which are arranged front and back and can move back and forth. The cutting knife mechanisms include film cutters, clamping components, first detection sensors and reset components. The film cutters of the two sets of cutting knife mechanisms cut along the corresponding end faces of the two sections of profiles respectively, which can reduce the residual film remaining at the end of the profile and avoid the residual film remaining after cutting being too long, which may cause the film to be accidentally torn off during the handling and transportation of the profile. The cutting knife mechanism can move back and forth in the moving direction of the profile, and move synchronously with the profile when cutting, so that the profile does not need to stop when cutting the film, and can be conveyed all the time, so that the film laminating process can be carried out continuously without affecting production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of profile packaging, and particularly to a profile film laminating device. Background Art

[0002] Before the profiles leave the factory, in order to effectively prevent surface damage caused by scratching, collision, etc. during transportation, factories usually use profile film laminating devices to laminate the surfaces of the profiles. During lamination, the profiles are fed into the profile conveying device section by section. The films are respectively drawn from the corresponding film rolls and adhered to the four sides of the profiles. When the lamination of one section of the profile is completed, it is necessary to cut the film between two sections of the profiles. In the prior art, a single-knife cutting method is usually adopted, and a cutting operation is performed once with a tool at the film position between two sections of the profiles. However, in this way, there is a lot of remaining film at the ends of the profiles after the film is cut. Since the film has adhesiveness, during subsequent handling and transportation, the film may adhere to the surfaces of other objects, and then the film may be accidentally torn off. In addition, during the cutting operation, the profile conveying device needs to stop running to cooperate with the cutting operation, and then continue to start after the film cutting is completed, thus affecting the production efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a profile film laminating device, which has less remaining film at the ends of the profiles after the film is cut, and the profile conveying device does not need to stop running during the cutting operation, and the production efficiency is higher.

[0004] In order to achieve the above object, the present invention provides the following technical solutions.

[0005] The profile film laminating device includes:

[0006] A profile conveying device for conveying profiles, with intervals left between the conveyed sections of the profiles;

[0007] A film laminating device for laminating films onto the four sides of the profiles;

[0008] A film cutting device provided behind the film laminating device;

[0009] The profile conveying device conveys the profiles to move forward. When the profiles pass through the film laminating device, the profiles are laminated. When the intervals between two laminated profiles pass through the film cutting device, the film cutting device cuts the film at the intervals;

[0010] The film cutting device is provided with two groups of cutter mechanisms, which are arranged front and back and can both move back and forth. The cutter mechanism includes:

[0011] A film cutter for cutting the film;

[0012] A clamping assembly for clamping the profiles so that the cutter mechanism moves synchronously with the profiles;

[0013] The first detection sensor is used to detect the end face position of the profile to determine the interval between two profiles.

[0014] The reset component is used to drive the cutter mechanism to reset.

[0015] When the first detection sensors of the two groups of cutter mechanisms detect the end face positions of the two profiles to determine the interval between the two profiles, the clamping components of the front cutter mechanism clamp the profile in front of the interval, the film cutter of this cutter mechanism aligns with the rear end face of this section of profile, the clamping components of the rear cutter mechanism clamp the profile behind the interval, the film cutter of this cutter mechanism aligns with the front end face of this section of profile, the two groups of cutter mechanisms respectively move backward synchronously with the profiles they clamp, the film cutter cuts the film at the interval along the end face of the profile it aligns with, the clamping components release the profiles, and the reset component drives the cutter mechanism to move forward and reset.

[0016] The film cutters of the two groups of cutter mechanisms respectively cut along the corresponding end faces of the two profiles, which can reduce the remaining film at the ends of the profiles and avoid the remaining film after cutting being too long and causing the film to be accidentally torn off during the handling and transportation of the profiles. The cutter mechanism can move back and forth in the moving direction of the profile and move synchronously with the profile during cutting, so that the profile does not need to pause when cutting the film and can be continuously conveyed, thus enabling the film pasting process to proceed continuously without affecting the production efficiency.

[0017] Wherein, the cutter mechanism further includes a cutter adjustment component, and the cutter adjustment component includes:

[0018] The second detection sensor is used to detect the end face position of the profile, align with the film cutter and move back and forth synchronously.

[0019] The adjustment driver is used to drive the film cutter and the second detection sensor to move back and forth.

[0020] When the second detection sensor does not detect the end face position of the profile, the adjustment driver drives the film cutter and the second detection sensor to move back and forth to align the film cutter with the end face position of the profile.

[0021] During the conveying of the profile, when the clamping component clamps the profile and after clamping the profile, there may be a slipping phenomenon between the clamping component and the profile, resulting in the film cutter not being aligned with the initial cutting position at the end of the profile. On the one hand, it may cause the film cutter to cut the profile, resulting in film cutting failure. On the other hand, it may cause the remaining film to be too long. By setting the second detection sensor to detect the deviation of the film cutter, when a deviation occurs, a signal is sent to control the start of the adjustment driver, so that the film cutter is realigned with the end of the profile before cutting the film, thus avoiding the problems of film cutting failure and too long remaining film caused by the deviation of the film cutter position.

[0022] Among them, the film cutting device is provided with a tensioning fixture. Before the film cutter cuts, the tensioning fixture clamps the film within the interval, so that the film always remains in a tensioned state. Since there are two groups of cutter mechanisms, there may be a slight deviation in the cutting times of the two film cutters, and it may occur that one end of the film is cut first, resulting in insufficient or lost tension at the other end of the film, and further resulting in a long remaining film after film cutting, or even film cutting failure. By setting the tensioning fixture to clamp the film within the interval, it is ensured that both ends of the film within the interval are in a tensioned state when the two film cutters cut, so that the film can be smoothly cut off regardless of when the two film cutters cut.

[0023] Among them, the profile conveying device includes a film pasting section and a film cutting section. The film pasting section and the film cutting section correspond to the film pasting device and the film cutting device respectively. The conveying speed of the film cutting section can be changed. Before the tensioning fixture clamps the film within the interval, the film cutting section first decelerates to shorten the distance of the interval, so that the film within the interval is relaxed, and then the film cutting section resumes the same speed as the film pasting section, and the tensioning fixture then clamps the film to keep it in a tensioned state. The film between the two profiles is in a tensioned state. Since the film has a certain elasticity, during the clamping process of the tensioning fixture, the film within the interval will be stretched, resulting in the film being in a more taut state. After being cut off, the film may contract violently, resulting in a situation where some areas at the end of the profile may not be covered by the film. When the interval passes through the film cutting device, by reducing the speed of the film cutting section of the profile conveying device, first shorten the distance between the two profiles (the distance of the interval), let the film relax, and then the tensioning fixture clamps the film to reduce the tension degree of the film, thereby avoiding the problem that part of the end of the profile is exposed due to the film being overstretched and then retracting after being cut off.

[0024] Among them, the tensioning fixture includes:

[0025] Misaligned clamping jaws, there are two of them. The two misaligned clamping jaws have corresponding shapes and corresponding insertion positions, and the misaligned clamping jaws are also provided with inclined surfaces for guiding the four-sided film to converge at the central axis of the profile cross-section;

[0026] A clamping jaw seat, and the misaligned clamping jaws are slidably connected to the clamping jaw seat;

[0027] A clamping jaw driver for driving the two misaligned clamping jaws to approach or move away from each other;

[0028] The two misaligned clamping jaws approach each other until they are inserted into each other. The inclined surfaces come into contact and guide the film to converge along the inclined surfaces at the central axis of the profile cross-section and be clamped by the two misaligned clamping jaws. During the clamping process, the film gradually moves towards the central convergence point along the inclined surfaces, enabling the films on each side to be neatly concentrated at the midpoint of the misaligned clamping jaws, preventing the films on each side from being over-tensioned or under-tensioned, and providing good preconditions for the subsequent film cutting operation.

[0029] Among them, the clamping assembly includes:

[0030] Profile clamping plates, which are provided with two to clamp from both sides of the profile respectively;

[0031] A clamping driver for driving the two profile clamping plates to approach or move away from each other.

[0032] Among them, the cutter mechanism further includes a sliding base that can slide back and forth. The film cutter, the clamping assembly, and the first detection sensor are all installed on the sliding base. The reset assembly includes:

[0033] A synchronous belt, which is arranged from front to back along the profile conveying device and is fixedly connected to the sliding base;

[0034] A reset motor for driving the synchronous belt to rotate. A one-way bearing is provided between the output shaft of the reset motor and the synchronous belt, so that the synchronous belt will not drive the reset motor when rotating backward, and the reset motor can drive the synchronous belt to rotate forward when rotating forward;

[0035] When the cutter mechanism moves backward synchronously with the profile it clamps, the sliding base drives the synchronous belt to rotate backward. After the clamping assembly releases the profile, the reset motor drives the synchronous belt to rotate forward to drive the sliding base to move forward and reset.

[0036] Among them, the film cutting device is also provided with a film collection pipe located below the tensioning fixture, which is provided with an upward-facing opening that aligns with the tensioning fixture to be able to catch the cut film. Brief Description of the Drawings

[0037] Figure 1 is a three-dimensional structural schematic diagram of the profile film pasting device of the present invention.

[0038] Figure 2 is a three-dimensional structural schematic diagram of the film cutting device.

[0039] Figure 3 is an exploded view of the film cutting device.

[0040] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0041] Figure 5 is a three-dimensional structural schematic diagram of the cutter adjustment assembly.

[0042] Figure 6 This is the front view of the profile film laminating device of the present invention.

[0043] Figure 7 is Figure 6 the enlarged schematic view of part B in

[0044] Figure 8 In (a), it is the schematic view of the tensioning fixture in the open state; (b) is the schematic view of the tensioning fixture in the clamping state.

[0045] The reference signs include:

[0046] Film cutting device 1, cutter mechanism 11, film cutter 111, cutter drive motor 112, clamping assembly 12, profile clamping plate 121, first detection sensor 13, reset assembly 14, synchronous belt 141, reset motor 142, cutter adjustment assembly 15, second detection sensor 151, adjustment driver 152, tensioning fixture 16, misaligned jaw 161, jaw seat 162, mounting bracket 163, sliding base 17, film collection pipeline 18, idler roller 19;

[0047] Profile conveying device 2, driving roller 21, film laminating section 22, film cutting section 23;

[0048] Film laminating device 3, profile 4, frame 5. Specific embodiments

[0049] The following will describe the present invention in detail with reference to specific embodiments.

[0050] As Figure 1 shown, the profile film laminating device of this embodiment includes a frame 5, a profile conveying device 2, a film laminating device 3 and a film cutting device 1. The profile conveying device 2 is used to convey the profile 4. In combination with Figure 6 , it includes multiple groups of driving rollers 21. Each group includes two driving rollers 21. The two driving rollers 21 clamp the profile 4 from both sides respectively, and then drive the profile 4 to move forward by rotation. There is a gap between the conveyed profiles 4. The film laminating device 3 is used to attach the film to the four sides of the profile 4. One film is attached to one side. The attaching surface of the film has adhesiveness. After the film is pulled out from the film roll and attached to the side of the profile 4, when the profile 4 moves, it will pull the film roll of the film to release the film. When passing through the driving roller 21, it is flattened and tightly attached. The driving rollers 21 can be arranged above, below, left and right of the profile 4, which not only plays the role of driving the profile 4 to move, but also plays the role of pressing the film. A pressing roller can also be arranged separately to press the film. The film cutting device 1 is arranged behind the film laminating device 3. When the profile 4 is conveyed forward and passes through the film laminating device 3, it is laminated with the film. When the gap between the two laminated profiles 4 passes through the film cutting device 1, the film cutting device 1 cuts the film at the gap.

[0051] Combined with Figures 2 - 5 , the film cutting device 1 of this embodiment is provided with two groups of cutter mechanisms 11. The two groups of cutter mechanisms 11 are arranged front and back and can both move back and forth. The cutter mechanism 11 includes a sliding base 17, a roller 19, a film cutter 111, a cutter drive motor 112, a clamping assembly 12, a first detection sensor 13 and a reset assembly 14. The sliding base 17 is slidably connected to the frame 5, for example, it can be slidably connected through a guide rail. The cutter drive motor 112, the clamping assembly 12 and the first detection sensor 13 are all installed on the sliding base 17. The roller 19 is used to support the profile 4 entering the film cutting device 1. The film cutter 111 is fixedly connected to the output shaft of the cutter drive motor 112, so that the cutter drive motor 112 can cut by driving the film cutter 111 to rotate. The clamping assembly 12 is used to clamp the profile 4 so that the cutter mechanism 11 moves synchronously with the profile 4. It includes profile clamping plates 121 and a clamping driver. There are two profile clamping plates 121 to clamp from both sides of the profile 4 respectively. The clamping driver is used to drive the two profile clamping plates 121 to approach or separate from each other. Preferably, the clamping driver can be selected in the form of a cylinder drive. The first detection sensor 13 is used to detect the end position of the profile 4 to determine the interval between two sections of the profile 4. It can be a sensor for detecting metal. Since the profile 4 is made of metal and the film is made of plastic, the film will not affect the function of the sensor to detect the end position of the profile 4. Combined with Figure 2 and Figure 3 , the reset assembly 14 is used to drive the cutter mechanism 11 to reset. It includes a synchronous belt 141 and a reset motor 142. The synchronous belt 141 is arranged from front to back along the profile conveying device 2. The sliding bases 17 of the two cutter mechanisms 11 are respectively fixedly connected to the two synchronous belts 141. The reset motor 142 is used to drive the synchronous belt 141 to rotate. There is a one-way bearing between the output shaft of the reset motor 142 and the synchronous belt 141. When installing the one-way bearing, its installation direction needs to be determined according to the conveying direction of the profile 4. It is necessary to make the direction in which the one-way bearing allows rotation the same as the conveying direction of the profile 4, so that when the synchronous belt 141 rotates backward, it will not drive the reset motor 142 to rotate backward, and when the reset motor 142 rotates forward, it can drive the synchronous belt 141 to rotate forward.

[0052] Combined with Figure 6 and Figure 7, the first detection sensors 13 of the two groups of cutter mechanisms 11 detect the end face positions of the two sections of profiles 4 to determine the interval between the two sections of profiles 4. The clamping assemblies 12 of the front cutter mechanism 11 clamp the profile 4 in front of the interval, and the film cutter 111 of this cutter mechanism 11 aligns with the rear end face of this section of profile 4. The clamping assemblies 12 of the rear cutter mechanism 11 clamp the profile 4 behind the interval, and the film cutter 111 of this cutter mechanism 11 aligns with the front end face of this section of profile 4. The two groups of cutter mechanisms 11 move backward synchronously with the profiles 4 they clamp. The film cutter 111 cuts the film at the interval along the end face of the profile 4 it aligns with (the film is hidden in the drawing for the convenience of showing other mechanisms). The clamping assemblies 12 release the profiles 4, and the reset assembly 14 drives the cutter mechanism 11 to move forward and reset, and the above actions are repeated for the next interval.

[0053] When the cutter mechanism 11 moves backward synchronously with the profile 4 it clamps, the sliding base 17 drives the synchronous belt 141 to rotate backward. At this time, the one-way bearing can rotate freely, and the reset motor 142 will not affect the rotation of the synchronous belt 141, so that the cutter mechanism 11 can move backward smoothly synchronously with its clamping stroke. After the clamping assembly 12 releases the profile 4, the output shaft of the reset motor 142 rotates forward. At this time, the one-way bearing cannot rotate, and the reset motor 142 can drive the synchronous belt 141 to rotate forward, thereby driving the sliding base 17 (cutter mechanism 11) to move forward and reset.

[0054] The film cutters 111 of the two groups of cutter mechanisms 11 cut along the corresponding end faces of the two sections of profiles 4 respectively, which can reduce the remaining film at the ends of the profiles 4 and avoid the remaining film after cutting being too long, resulting in the film being accidentally torn off during the handling and transportation of the profiles 4. The cutter mechanism 11 can move back and forth in the moving direction of the profile 4, and move synchronously with the profile 4 during cutting. After cutting, it moves forward and resets to cut the next position, so that the profile 4 does not need to pause when cutting the film and can be continuously conveyed, so that the film pasting process can be carried out continuously without affecting the production efficiency.

[0055] During the conveying process of the profile 4, during the process of the clamping assembly 12 clamping the profile 4 and after clamping the profile 4, due to the relatively smooth surface of the film and the possible presence of lubricating oil or water of the equipment on the film surface, there may be a slipping phenomenon between the clamping assembly 12 and the profile 4, resulting in the film cutter 111 not aligning with the initial cutting position at the end of the profile 4. On the one hand, it may cause the film cutter 111 to cut the profile 4, resulting in film cutting failure. On the other hand, it may cause the remaining film to be too long. Combined with Figures 3 - 5, the cutting tool mechanism 11 further includes a cutting tool adjustment assembly 15. The cutting tool adjustment assembly 15 includes a second detection sensor 151 and an adjustment drive 152. The second detection sensor 151 is used to detect the end face position of the profile 4. It is aligned with the film cutting tool 111 and moves forward and backward synchronously. The second detection sensor 151 can adopt the same type of sensor as the first detection sensor 13. The adjustment drive 152 is used to drive the film cutting tool 111 and the second detection sensor 151 to move forward and backward. In this embodiment, the adjustment drive 152 includes a rotary motor and a ball screw. The cutting tool drive motor 112, the film cutting tool 111, and the second detection sensor 151 are all installed on the slider of the ball screw. The rotary motor drives the ball screw to rotate to drive them to move forward and backward. When the second detection sensor 151 does not detect the end face position of the profile 4, the adjustment drive 152 drives the cutting tool drive motor 112, the film cutting tool 111, and the second detection sensor 151 to move forward and backward together, so that the film cutting tool 111 is aligned with the end face position of the profile 4. By setting the second detection sensor 151 to detect the deviation of the film cutting tool 111, when the film cutting tool 111 deviates, the adjustment drive 152 is controlled to start, so that the film cutting tool 111 is realigned with the end face of the profile 4 before cutting the film, thereby avoiding the problems of film cutting failure and too long remaining film caused by the position deviation of the film cutting tool 111.

[0056] Due to the provision of two sets of cutting tool mechanisms 11, there may be a slight deviation in the cutting times of the two film cutting tools 111. It is possible that one end of the film at the interval between the two profiles 4 is cut first, resulting in insufficient or lost tension at the other end of the film. This end is not easily cut off, and then there will be a long remaining film after film cutting, or even film cutting failure. Combining Figure 3 , Figure 4 and Figure 8 , the film cutting device 1 of this embodiment is provided with a tensioning clamp 16 and a film collecting pipe 18 located below the tensioning clamp 16. The film collecting pipe 18 is fixedly connected to the sliding base 17 in front and is provided with an upward-opening, and the opening is aligned with the tensioning clamp 16. Before the film cutting tool 111 cuts the film, the tensioning clamp 16 clamps the film within the interval, so that both ends of the film at the interval between the two profiles 4 are always kept in a tensioned state. Combining Figure 4 and Figure 8, the tensioning fixture 16 includes misaligned jaws 161, jaw seats 162, jaw drivers (not shown in the figure), and mounting brackets 163. There are two misaligned jaws 161, their shapes correspond to each other and are provided with corresponding insertion positions. The misaligned jaws 161 are also provided with inclined surfaces for guiding the four-sided film to converge at the central axis of the cross-section of the profile 4. The misaligned jaws 161 are slidably connected to the jaw seats 162. The jaw seats 162 are mounted on the mounting brackets 163, and the mounting brackets 163 are fixedly connected to the sliding base 17 located in the front. The jaw drivers are used to drive the two misaligned jaws 161 to approach or move away from each other. Preferably, the jaw drivers can be of the cylinder drive type. As Figure 8 shown in (b) of , before the film cutter 111 cuts, the two misaligned jaws 161 approach each other until they are inserted into each other. The inclined surfaces contact and guide the film to converge along the inclined surfaces at the central axis of the cross-section of the profile 4 and are clamped by the two misaligned jaws 161. After the film is cut off, the two misaligned jaws 161 move away from each other, and the film drops into the film collection pipe 18.

[0057] By setting the tensioning fixture 16 to clamp the film within the interval, it is ensured that both ends of the film within the interval are in a tensioned state when the two film cutters 111 cut, so that the film can be smoothly cut off whenever the two film cutters 111 cut. During the clamping process, the film will gradually move towards the central convergence point along the inclined surface, enabling the films on each surface to be neatly concentrated at the central axis of the cross-section of the profile 4, avoiding excessive or insufficient tension of the film on some sides, and providing good preconditions for subsequent film cutting operations.

[0058] The film between the two profiles 4 is in a tensioned state. Since the film has a certain elasticity, during the clamping process of the tensioning fixture 16, the film between the two profiles 4 will be stretched, resulting in the film being in an even more taut state. After being cut off, the film may contract violently, resulting in the possibility that some areas at the ends of the profile 4 may not be covered by the film. Combining Figures 6 - 7, the profile conveying device 2 of this embodiment includes a film pasting section 22 and a film cutting section 23. The film pasting device 3 is located in the film pasting section 22, and the film cutting device 1 is located in the film cutting section 23. The conveying speed of the film cutting section 23 can be changed. Before the tensioning fixture 16 clamps the film between two profiles 4, the profile 4 at the rear has completely entered the film cutting section 23 of the profile conveying device 2. At this time, the driving roller 21 of the film cutting section 23 first decelerates briefly or stops briefly, so that a speed difference is formed between the speeds of the two profiles 4, enabling the profile 4 at the front to approach the profile 4 at the rear to shorten the distance between the two profiles 4, thereby making the film between the two profiles 4 relax to a certain extent. Then, the driving roller 21 of the film cutting section 23 resumes the same speed as the driving roller 21 of the film pasting section 22, so that the front and rear profiles 4 move backward synchronously while maintaining the shortened distance. The tensioning fixture 16 then clamps the film between the two profiles 4 to keep it in a tensioned state without being overstretched. In this way, after the film is cut, it will not retract, thus avoiding the problem that the film at the end of the profile 4 retracts and exposes the end of the profile 4.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. Profile film laminating equipment, including: A profile conveying device is used to convey the profiles, with intervals between each section of the profile being conveyed; Film sticking device, used to stick the film to the four sides of the profile; The film cutting device is arranged behind the film sticking device; The profile conveying device conveys the profile from front to back, and the profile is laminated with film when passing through the film laminating device. When the interval between two sections of the profile that have been laminated passes through the film cutting device, the film cutting device cuts off the film at the interval; The feature is that the film cutting device is provided with two sets of cutting mechanisms, the two sets of cutting mechanisms are arranged front and back, and both can move back and forth, and the cutting mechanisms include: Film cutter, used to cut the film; A clamping assembly, used for clamping the profile so that the cutter mechanism moves synchronously with the profile; A first detection sensor is used to detect the end surface position of the profile to determine the interval between two sections of the profile; A reset component, used for driving the cutter mechanism to reset; The first detection sensors of the two groups of cutting mechanisms detect the end surface positions of the two sections of the profile to determine the interval between the two sections of the profile. The clamping assembly of the front cutting mechanism clamps the profile in front of the interval, and the film cutter of the cutting mechanism is aligned with the rear end surface of the section of the profile. The clamping assembly of the rear cutting mechanism clamps the profile in the rear of the interval, and the film cutter of the cutting mechanism is aligned with the front end surface of the section of the profile. The two groups of cutting mechanisms move backward synchronously with the clamped profiles, and the film cutter cuts the film at the interval along the end surface of the aligned profile. The clamping assembly releases the profile, and the reset assembly drives the cutting mechanism to move forward and reset. The cutter mechanism also includes a cutter adjustment component, which includes: The second detection sensor is used to detect the end surface position of the profile, align with the film cutter and move back and forth synchronously; An adjustment driver is used to drive the film cutter and the second detection sensor to move forward and backward; When the second detection sensor fails to detect the end surface position of the profile, the driver is adjusted to drive the film cutter and the second detection sensor to move forward and backward so that the film cutter is aligned with the end surface position of the profile; The film cutting device is provided with a tensioning clamp, and before the film cutter performs cutting, the tensioning clamp clamps the film in the interval so that the film is always kept in a tensioned state; The profile conveying device includes a film sticking section and a film cutting section, which correspond to the film sticking device and the film cutting device respectively. The conveying speed of the film cutting section can be changed. Before the tensioning clamp clamps the film in the interval, the film cutting section first slows down to shorten the distance of the interval so that the film in the interval relaxes. Then the film cutting section recovers to the same speed as the film sticking section, and the tensioning clamp clamps the film again to keep it in a tensioned state.

2. The profile film laminating equipment according to claim 1, characterized in that: The tensioning fixture consists of: There are two offset jaws, which have corresponding shapes and corresponding insertion positions, and the offset jaws are also provided with inclined surfaces for guiding the four-sided films to converge on the central axis of the profile section; A clamping jaw seat, wherein the dislocated clamping jaw is slidably connected to the clamping jaw seat; A clamping jaw driver, used for driving two offset clamping jaws to move closer to or away from each other; The two offset clamps approach each other until they are inserted into each other, and the inclined surfaces contact and guide the film to converge along the inclined surfaces at the central axis of the profile cross section and be clamped by the two offset clamps.

3. The profile film laminating equipment according to claim 1, characterized in that: The clamping assembly includes: Profile clamping plates, which are provided with two for clamping from both sides of the profile; The clamping drive is used to drive two profile clamping plates towards or away from each other.

4. The profile film laminating equipment according to claim 1, characterized in that: The cutter mechanism also includes a sliding base, which can slide back and forth. The film cutter, the clamping assembly and the first detection sensor are all installed on the sliding base. The reset assembly includes: A synchronous belt, which is arranged from front to back along the profile conveying device and is fixedly connected to the sliding base; The reset motor is used to drive the synchronous belt to rotate. A one-way bearing is provided between the output shaft of the reset motor and the synchronous belt so that the reset motor will not be driven when the synchronous belt rotates backward, and the reset motor can drive the synchronous belt to rotate forward when it rotates forward; When the cutter mechanism moves backward synchronously with the clamped profile, the sliding base drives the synchronous belt to rotate backward. After the clamping assembly releases the profile, the reset motor drives the synchronous belt to rotate forward to drive the sliding base to move forward and reset.

5. The profile film laminating equipment according to claim 1, characterized in that: The film cutting device is also provided with a film collecting pipe located below the tensioning clamp, which is provided with an opening facing upwards, and the opening is aligned with the tensioning clamp so as to be able to receive the cut film.

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