Profile film pasting equipment

Abstract

Profile film pasting equipment relates to the technical field of profile packaging and comprises a profile conveying device, a film pasting device and a film cutting device. The film cutting device is provided with two cutter mechanisms, the two cutter mechanisms are arranged front and back and can move front and back, each cutter mechanism comprises a thin film cutter, a clamping assembly, a first detection sensor and a reset assembly, the thin film cutters of the two cutter mechanisms conduct cutting along the corresponding end faces of the two sections of sectional materials, residual films left at the ends of the sectional materials can be reduced, and the cutting efficiency of the sectional materials is improved. And the situation that the film is accidentally torn off in the sectional material carrying and transporting process due to the fact that the residual film left after cutting is too long is avoided. The cutter mechanism can move back and forth in the moving direction of the sectional material and synchronously move along with the sectional material during cutting, so that the sectional material does not need to be stopped and can be conveyed all the time when a film is cut, the film pasting process can be continuously carried out, and the production efficiency is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of profile packaging, and in particular to a profile film pasting device. Background Art

[0002] Before the profile leaves the factory, in order to effectively prevent it from being damaged by scratches, collisions, etc. during transportation, the factory usually uses profile film laminating equipment to laminat the surface of the profile. When laminating, the profile is loaded onto the profile conveying device section by section, and the films are respectively drawn out from the corresponding film rolls and laminatized on the four sides of the profile. When a section of the profile is laminatized, it is necessary to cut the film between the two sections of the profile. In the prior art, a single-knife cutting method is usually adopted, and a cutting operation is performed once at the film position between the two sections of the profile. However, this method leaves a lot of residual film at the end of the profile after the film is cut. Since the film is sticky, the film may adhere to the surface of other objects during subsequent handling and transportation, causing the film to be accidentally torn off. In addition, when performing the cutting operation, the profile conveying device needs to stop running to cooperate with the cutting operation, and wait for the film cutting to be completed before restarting, thereby affecting production efficiency. Summary of the invention

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

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

[0005] 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 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 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 profiles to determine the interval between the two sections of profiles. 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 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 profile. The two groups of cutting mechanisms move backward synchronously with the clamped profiles, and the film cutter cuts off the film at the interval along the end surface of the profile with which it is aligned. The clamping assembly releases the profile, and the reset assembly drives the cutting mechanism to move forward and reset.

[0006] The film cutters of the two sets of cutting mechanisms cut along the corresponding end faces of the two sections of the profile respectively, which can reduce the residual film remaining at the end of the profile and avoid the residual film remaining too long after cutting, which may cause the film to be accidentally torn off during the transportation of the profile. The cutting mechanism can move forward and backward in the direction of the profile movement, and move synchronously with the profile when cutting, so that the profile does not need to stop when cutting the film and can be transported all the time, so that the film application process can be carried out continuously without affecting production efficiency.

[0007] The cutter mechanism further 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.

[0008] During the transportation of the profile, when the clamping assembly is clamping the profile, and after the profile is clamped, the clamping assembly and the profile may slip, causing the film cutter to not align 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, and on the other hand, it may cause the residual film to be too long. By setting a second detection sensor to detect the offset of the film cutter, a signal is sent to control the start of the adjustment drive when offset occurs, so that the film cutter is realigned with the end of the profile before cutting the film, thereby avoiding the problem of film cutting failure and excessive residual film caused by the position deviation of the film cutter.

[0009] The film cutting device is provided with a tensioning clamp. Before the film cutter cuts, the tensioning clamp clamps the film in the interval so that the film is always in a tensioned state. Since two sets of cutting knife mechanisms are provided, there may be slight deviations in the cutting time of the two film cutters. One end of the film may be cut first, resulting in insufficient tension or loss of tension at the other end of the film, which in turn results in a long residual film after film cutting, or even film cutting failure. By providing a tensioning clamp to clamp the film in the interval, it is ensured that both ends of the film in the interval are in a tensioned state when the two film cutters are cutting, so that the film can be cut smoothly whenever the two film cutters cut.

[0010] The profile conveying device includes a film pasting section and a film cutting section, which 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 clamp clamps the film in the interval, the film cutting section first decelerates 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 pasting section, and the tensioning clamp clamps the film again to keep it in a tensioned state. The film between the two sections of the profile is in a tensioned state. Since the film has a certain elasticity, the film in the interval will be stretched during the clamping process of the tensioning clamp, causing the film to be in a more tense state. After being cut, the film may shrink violently, resulting in that some areas of the profile end may not be covered by the film. When the interval passes through the film cutting device, the speed of the film cutting section of the profile conveying device is reduced to first shorten the distance between the two sections of the profile (the distance of the interval), allowing the film to relax, and then the tensioning clamp clamps the film again to reduce the tension of the film, thereby avoiding the problem that the film is over-stretched and shrinks after being cut, resulting in a portion of the profile end being exposed.

[0011] Among them, the tensioning fixture includes: There are two offset jaws, which have corresponding shapes and corresponding insertion positions, and the offset jaws are also provided with an inclined surface 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 jaws approach each other until they are inserted into each other, and the inclined surface contacts and guides the film to converge along the inclined surface at the central axis of the profile section and be clamped by the two offset jaws. During the clamping process, the film will gradually move along the inclined surface to the central convergence point, so that the film on each side can be neatly concentrated at the middle point of the offset jaws, avoiding the film on each side from being over-tensioned or under-tensioned, providing a good prerequisite for the subsequent film cutting operation.

[0012] 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.

[0013] The cutter mechanism further comprises a sliding base, which can slide forward and backward, and the film cutter, the clamping assembly and the first detection sensor are all mounted on the sliding base, and the reset assembly comprises: 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.

[0014] The film cutting device is further 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 receive the cut film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the profile film laminating equipment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the film cutting device.

[0017] Figure 3 This is an exploded view of the film cutting device.

[0018] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0019] Figure 5 A schematic diagram of the three-dimensional structure of the cutter adjustment assembly.

[0020] Figure 6 It is a front view of the profile film laminating device of the present invention.

[0021] Figure 7 for Figure 6 A magnified schematic diagram of point B in the middle.

[0022] Figure 8 (a) is a schematic diagram of the tensioning clamp in an open state; (b) is a schematic diagram of the tensioning clamp in a clamped state.

[0023] Reference numerals include: 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 clamp 16, offset clamp 161, clamp seat 162, mounting frame 163, sliding base 17, film collection pipe 18, roller 19; Profile conveying device 2, driving roller 21, film laminating section 22, film cutting section 23; Film sticking device 3, profile 4, frame 5. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1 As shown, the profile film laminating equipment 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. Figure 6 , which 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 from front to back by rotating, leaving a gap between each section of the profile 4 being transported, the film sticking device 3 is used to stick the film to the four sides of the profile 4, one film sticks to one side, the sticking surface of the film is sticky, the film is pulled out of the film roll and attached to the side of the profile 4, the profile 4 moves, the film roll unwinds the film, and is flattened and pressed tightly when passing through the driving rollers 21, the driving rollers 21 can be set on the top, bottom, 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 set to press the film. The film cutting device 1 is set behind the film sticking device 3, and the profile 4 is filmed when it is transported from front to back and passes through the film sticking device 3. When the gap between the two sections of the profile 4 that have been filmed passes through the film cutting device 1, the film cutting device 1 cuts the film at the gap.

[0026] Combination Figure 2-Figure 5The film cutting device 1 of this embodiment is provided with two sets of cutting mechanisms 11, which are arranged front and back and can move back and forth. The cutting 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, and 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 cutting mechanism 11 can move synchronously with the profile 4. It includes a profile clamp 121 and a clamping driver. The profile clamp 121 is provided with two clamps for clamping from both sides of the profile 4. The clamping driver is used to drive the two profile clamps 121 to move closer to or away from each other. Preferably, the clamping driver can be a cylinder drive. The first detection sensor 13 is used to detect the end face 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 sensor's function of detecting the end face position of the profile 4. Figure 2 and Figure 3 The reset assembly 14 is used to drive the cutter mechanism 11 to reset, and 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. A one-way bearing is provided between the output shaft of the reset motor 142 and the synchronous belt 141. When installing, the one-way bearing needs to determine its own installation direction according to the conveying direction of the profile 4. It is necessary to make the direction in which the one-way bearing is allowed to rotate 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.

[0027] Combination Figure 6 and Figure 7The first detection sensors 13 of the two groups of cutting mechanisms 11 detect the end surface positions of the two sections of profile 4 to determine the interval between the two sections of profile 4. The clamping assembly 12 of the front cutting mechanism 11 clamps the profile 4 in front of the interval, and the film cutter 111 of the cutting mechanism 11 is aligned with the rear end surface of the section of profile 4. The clamping assembly 12 of the rear cutting mechanism 11 clamps the profile 4 in the rear of the interval, and the film cutter 111 of the cutting mechanism 11 is aligned with the front end surface of the section of profile 4. The two groups of cutting mechanisms 11 move backward synchronously with the clamped profiles 4 respectively, and the film cutter 111 cuts the film at the interval along the end surface of the aligned profile 4 (it is not convenient to show other mechanisms, and the film is hidden in the drawings). The clamping assembly 12 releases the profile 4, and the reset assembly 14 drives the cutting mechanism 11 to move forward and reset, and the above action is repeated for the next interval.

[0028] When the cutter mechanism 11 moves backward synchronously with the clamped profile 4, 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 the cutter mechanism 11 can smoothly move backward 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.

[0029] The film cutters 111 of the two sets of cutter mechanisms 11 cut along the corresponding end faces of the two sections of the profile 4 respectively, which can reduce the residual film remaining at the end of the profile 4 and prevent the residual film remaining after cutting from being too long, which may cause the film to be accidentally torn off during the transportation of the profile 4. The cutter mechanism 11 can move forward and backward 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 stop when cutting the film, and can be transported all the time, so that the film application process can be carried out continuously without affecting production efficiency.

[0030] During the transportation of the profile 4, during the clamping assembly 12 clamping the profile 4, and after clamping the profile 4, the film surface is relatively smooth and may be stained with lubricating oil or water from the equipment, so the clamping assembly 12 and the profile 4 may slip, causing the film cutter 111 to not align with the initial cutting position at the end of the profile 4. On the one hand, the film cutter 111 may cut the profile 4, causing the film cutting to fail, and on the other hand, the remaining film may be too long. Figure 3-Figure 5The cutter mechanism 11 also includes a cutter adjustment component 15, which includes a second detection sensor 151 and an adjustment driver 152. The second detection sensor 151 is used to detect the end surface position of the profile 4, which is aligned with the film cutter 111 and moves forward and backward synchronously. The second detection sensor 151 can be a sensor of the same type as the first detection sensor 13. The adjustment driver 152 is used to drive the film cutter 111 and the second detection sensor 151 to move forward and backward. In this embodiment, the adjustment driver 152 includes a rotating motor and a ball screw. The cutter drive motor 112, the film cutter 111 and the second detection sensor 151 are all installed on the slider of the ball screw. The rotating motor drives the ball screw to rotate and drive them to move forward and backward. When the second detection sensor 151 does not detect the end surface position of the profile 4, the adjustment driver 152 drives the cutter drive motor 112, the film cutter 111 and the second detection sensor 151 to move forward and backward together, so that the film cutter 111 is aligned with the end surface position of the profile 4. By setting a second detection sensor 151 to detect the deviation of the film cutter 111, when the film cutter 111 is offset, the control adjustment driver 152 is started, so that the film cutter 111 is realigned with the end surface of the profile 4 before cutting the film, thereby avoiding the problem of film cutting failure and excessive residual film caused by the position deviation of the film cutter 111.

[0031] Since two sets of cutting knife mechanisms 11 are provided, the cutting time of the two film cutters 111 may be slightly offset, and one end of the film at the interval between the two sections of the profile 4 may be cut first, resulting in insufficient tension or loss of tension at the other end of the film, which is not easy to be cut off, resulting in a long residual film after cutting, or even film cutting failure. 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 located in the front and is provided with an opening facing upwards, which is aligned with the tensioning clamp 16. Before the film cutter 111 cuts, the tensioning clamp 16 clamps the film in the interval so that both ends of the film at the interval between the two sections of the profile 4 are always in a tensioned state. Figure 4 and Figure 8The tensioning clamp 16 includes an offset jaw 161, a jaw seat 162, a jaw driver (not shown) and a mounting frame 163. There are two offset jaws 161, which have corresponding shapes and are provided with corresponding insertion positions. The offset jaw 161 is also provided with an inclined surface for guiding the four-sided film to converge on the central axis of the cross section of the profile 4. The offset jaw 161 is slidably connected to the jaw seat 162. The jaw seat 162 is mounted on the mounting frame 163, and the mounting frame 163 is fixedly connected to the sliding base 17 located in the front. The jaw driver is used to drive the two offset jaws 161 to move closer to or away from each other. Preferably, the jaw driver can be driven by a cylinder. Figure 8 As shown in (b), before the film cutter 111 starts cutting, the two offset jaws 161 approach each other until they are inserted into each other, and the inclined surface contacts and guides the film to converge along the inclined surface at the central axis of the cross section of the profile 4 and be clamped by the two offset jaws 161. After the film is cut, the two offset jaws 161 move away from each other, and the film falls into the film collection pipe 18.

[0032] By setting a tensioning clamp 16 to clamp the film in the interval, it is ensured that both ends of the film in the interval are in a tensioned state when the two film cutters 111 are cutting, so that the film can be cut smoothly whenever the two film cutters 111 cut. During the clamping process, the film will gradually move along the inclined surface toward the central convergence point, so that the films on each surface can be neatly concentrated at the central axis of the cross section of the profile 4, avoiding over-tensioning or under-tensioning of the films on some sides, and providing good prerequisites for subsequent film cutting operations.

[0033] The film between the two sections of the profile 4 is in a tensioned state. Since the film has a certain elasticity, the film between the two sections of the profile 4 will be stretched during the clamping process of the tensioning clamp 16, causing the film to be in a more tense state. After being cut, the film may shrink violently, resulting in that part of the end of the profile 4 may not be covered by the film. Figure 6-Figure 7The 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 in the film pasting section 22, and the film cutting device 1 is in the film cutting section 23. The conveying speed of the film cutting section 23 can be changed. Before the tensioning clamp 16 clamps the film between the two sections of the profile 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 slows down or stops briefly, so that the speed of the two sections of the profile 4 forms a speed difference, so that the profile 4 at the front can approach the profile 4 at the rear. 4 is used to shorten the distance between the two sections of the profile 4, so that the film between the two sections of the profile 4 is relaxed to a certain extent, and then the driving roller 21 of the film cutting section 23 is restored to the same speed as the driving roller 21 of the film pasting section 22, so that the front and rear sections of the profile 4 keep the shortened distance and move backward synchronously, and the tensioning clamp 16 clamps the film between the two sections of the profile 4 again, so that it is kept in a tensioned state without being over-stretched, so that the film will not shrink after being cut, and the problem of the film shrinking at the end of the profile 4 and exposing the end of the profile 4 is avoided. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution 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 profiles to determine the interval between the two sections of profiles. 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 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 profile. The two groups of cutting mechanisms move backward synchronously with the clamped profiles, and the film cutter cuts off the film at the interval along the end surface of the profile with which it is aligned. The clamping assembly releases the profile, and the reset assembly drives the cutting mechanism to move forward and reset.

2. The profile film laminating equipment according to claim 1, characterized in that: 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.

3. The profile film laminating equipment according to claim 1, characterized in that: 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.

4. The profile film laminating equipment according to claim 3, characterized in that: 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.

5. The profile film laminating equipment according to claim 3, 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.

6. 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.

7. 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.

8. The profile film laminating equipment according to claim 3, 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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