Film stretching and shaping device

Abstract

The invention relates to the technical field of film stretching, and discloses a film stretching and shaping device, which comprises a stretching table, and is characterized in that lower placing seats are symmetrically arranged above the stretching table, a film is placed on the upper surfaces of the two lower placing seats, upper placing seats are arranged right above the two lower placing seats, and the upper placing seats are arranged above the stretching table. Suction assemblies are arranged on the two sides of the two upper containing bases, the lower containing bases and the upper containing bases can be connected together through the suction assemblies when the edges of the two ends of the film are clamped, then the film is stretched through the stretching assembly, and in the stretching process, the film is not prone to falling off. The cutting assembly can always align at the non-stretched edge position clamped by the film, so that accurate cutting of the edge position is achieved, after cutting is completed, the two upper placing bases are reset through the suction assembly, and after resetting, when the two lower placing bases continue to move, the edge part can be taken out and collected through the inclination assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of film stretching, in particular to a film stretching and shaping device. Background Art

[0002] Film refers to a soft and transparent sheet, generally made of plastic, adhesive, rubber or other materials. Due to the good performance of film, it has been widely used in food, medicine, chemical industry and other fields. Film stretching and shaping device is an important part of film production line. It stretches the film through specific mechanical structure and process flow, and quickly cools and shapes it after stretching, so as to obtain film products with high strength, high elasticity and good barrier properties.

[0003] The prior art also proposes some solutions: For example, a Chinese patent with the announcement number CN212219254U discloses a stretching machine for film stretching. The platform includes a long strip platform and a base fixed at the bottom thereof. The scale is marked on the side of the long strip platform. The rotating screw is introduced into the film stretching to achieve uniform stretching of the film. In addition, the scale is directly marked on the platform, and the pointer moves together with the sliding support, so that the film stretching ratio is clear at a glance. The structure is simple, easy to carry, and the production cost is low, which is very convenient for small film stretching experiments in the laboratory.

[0004] In the above-mentioned film stretching technology, the stretching operation of the film is achieved by fixing the two ends of the film and stretching it to one side. The method of stretching the film to one side easily causes uneven pulling force on the film, resulting in the film being torn. After the film is stretched, it needs to be taken out and the edges of both ends need to be cut with other tools for shaping, which increases the complexity and time cost of the entire production process and reduces production efficiency.

[0005] To this end, the present invention provides a film stretching and shaping device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a film stretching and shaping device described in the present invention comprises a stretching table, a lower placing seat is symmetrically arranged above the stretching table, a film is placed on the upper surface of the two lower placing seats, an upper placing seat is arranged directly above the two lower placing seats, both ends of the two upper placing seats are fixedly connected with an inner sliding block 1, both sides of the two upper placing seats are provided with a vertical fixing seat, the outer wall of each inner sliding block 1 is slidably connected to the inner wall of the vertical fixing seat, suction components are arranged on both sides of the two upper placing seats, the suction components are used to drive the two upper placing seats to approach or move away from the film, one side of the two lower placing seats is provided with a stretching component for pulling the two lower placing seats away from or close to each other, the sides of the two upper placing seats are provided with a cutting component for cutting the edge of the film, and a tilting component for tilting the lower placing seats is arranged below the two lower placing seats.

[0008] Preferably, the suction component includes a plurality of electromagnets, side sliding grooves are symmetrically opened on the sides of the vertical fixed seat, the bottom of the upper placement seat is fixedly connected with a friction block, both sides of the inner sliding block are fixedly connected with side connecting rods, the bottom of the side connecting rods are fixedly connected with connecting blocks, the connecting blocks are metal blocks that can be attracted by magnetic force, the connecting blocks are located directly above the electromagnets, and the distance between the connecting block and the electromagnets is the same as the distance between the friction block and the film.

[0009] Preferably, the stretching assembly includes multiple transverse fixed seats, a bidirectional threaded conveying rod is rotatably connected between the inner walls of every two transverse fixed seats, an inner sliding block 2 is threadedly connected to the outer walls on both sides of each bidirectional threaded conveying rod, each inner sliding block 2 is slidably connected and adapted to each transverse fixed seat, the top of each inner sliding block 2 is respectively fixedly connected to the bottom of each electromagnet, a moving seat is fixedly connected between every two inner sliding blocks 2, the lower placement seat is located directly above the moving seat, and the bidirectional threaded conveying rod is provided with a driving assembly for driving the two bidirectional threaded conveying rods to rotate.

[0010] Preferably, the driving assembly includes two transmission rings, which are respectively fixed on one side of two bidirectional threaded conveying rods, and a transmission belt is connected between the outer walls of the two transmission rings, and a motor is fixedly connected to the other side of one of the bidirectional threaded conveying rods.

[0011] Preferably, the cutting assembly includes two powered sliders, the outer walls of the two powered sliders are respectively slidably connected to the inner walls of the two friction blocks, the inner walls of the two powered sliders are rotatably connected to connecting rods, one side of the two connecting rods is fixedly connected to a cutting blade, the teeth of the two connecting rods are meshed with rack plates, and the two rack plates are respectively fixedly installed on one side of the upper placement seat.

[0012] Preferably, one side of each vertical fixed seat is fixedly connected to a transverse platform, the top of each transverse platform is fixedly connected to an articulated seat 1, the shaft rod of each articulated seat 1 is hinged to an articulated connecting rod, the end of each articulated connecting rod away from the articulated seat 1 is hinged to an articulated seat 2, an outer sliding block is fixedly connected between one side of every two articulated seats 2, and a positioning shaft is symmetrically fixedly connected to the top of the stretching table, and the two outer sliding blocks are respectively slidably connected and adapted to the two positioning shafts.

[0013] Preferably, a damping rod 1 is fixedly connected between the bottom of the inner slider 1 and the bottom of the inner side surface of the vertical fixed seat, a return spring is arranged on the outside of the damping rod 1, and two ends of the return spring are respectively fixedly connected to the bottom of the inner slider 1 and the bottom of the inner side surface of the vertical fixed seat, a damping rod 2 is fixedly connected to one side of the hinged connecting rod and one side of the positioning shaft, an angle spring 1 is arranged on the outside of the damping rod 2, and two ends of the angle spring 1 are respectively fixedly connected to one side of the hinged connecting rod and the outer wall of the positioning shaft.

[0014] Preferably, the tilting assembly includes two triangular fixed tables, which are respectively fixedly installed on the top of the stretching table, and the top surfaces of the two triangular fixed tables are provided with inclined sliding grooves. The top of the movable seat is fixedly connected with a semi-arc hinged seat, and the outer wall of the shaft rod of the semi-arc hinged seat is hinged with a hinged seat three, and the hinged seat three is fixedly installed at the center of the bottom of the lower placement seat, and one end of the bottom of the lower placement seat is fixedly connected with a clamping member, and the outer wall of the shaft rod of the clamping member is fixedly connected with a pulley.

[0015] Preferably, one end of the bottom of the lower placement seat is fixedly connected to an angle spring 2, the other end of the angle spring 2 is fixedly connected to the side of the movable seat, a damping rod 3 is arranged outside the angle spring 2, one end of the damping rod 3 is fixedly connected to the bottom of the lower placement seat, and the other end of the damping rod 3 is fixedly connected to the side of the movable seat.

[0016] Preferably, a collecting box 2 and two collecting boxes 1 are provided on the inner side of the stretching platform, the collecting box 2 is located directly below the film, and the collecting box 1 is located directly below the triangular fixing platform.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The film stretching and shaping device described in the present invention places the film on top of two lower placement seats, and then energizes the electromagnet. Since the connecting block is located directly above the electromagnet, the electromagnet can attract the connecting block to descend and adhere to the electromagnet after being energized, so that the upper placement seat can clamp the upper surface of the film, and at the same time, the upper placement seat can be connected to the electromagnet to facilitate the subsequent stretching assembly to simultaneously apply tension to the lower placement seat and the upper placement seat.

[0019] 2. The film stretching and shaping device described in the present invention controls the powered slider to slide in the inner wall of the upper placement seat after the stretching component has finished stretching the film, so that the cutting blade moves along the edge position, and through the meshing relationship between the gear and the rack plate, the cutting blade can also rotate when moving along the edge position, thereby achieving the effect of cutting the edge position, and by installing the cutting blade on one side of the upper placement seat, no matter what state the film is stretched to, the cutting blade can still be aligned with the unstretched edge position.

[0020] 3. The film stretching and shaping device described in the present invention will also drive the two groups of vertical fixed seats to move toward both sides when the stretching component moves. Through the provision of a hinged seat and a hinged connecting rod, when the two vertical fixed seats move toward both sides, the outer sliding block will slide downward on the inner wall of the positioning shaft. Thus, when the two vertical fixed seats move toward both sides, they always maintain the same moving distance and there will be no deviation, so that the upper placement seat and the lower placement seat on both sides always maintain the same moving distance when the stretching is performed, thereby further improving the uniformity and stability of the stretching and improving the quality of the stretching.

[0021] 4. In the film stretching and shaping device described in the present invention, the clamping part will gradually slide along the inner wall of the inclined slide groove and rise along the inclined surface of the triangular fixed platform, so that one end of the lower placement seat will gradually tilt upward, and the hinge seat three will gradually rotate along the shaft rod of the semi-arc hinge seat, so that the edge part above the lower placement seat will gradually fall out, and the edge part that has not been stretched will be collected together. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the film of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the lower seat of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the upper placement seat of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the cutting blade of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the energized slider of the present invention;

[0029] Figure 7It is a structural schematic diagram of the threaded conveying rod of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the electromagnet of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the pulley of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the hinged connecting rod of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the triangular fixing platform of the present invention;

[0034] In the figure: 1, stretching table; 2, lower placement seat; 3, film; 4, upper placement seat; 5, inner slider 1; 6, vertical fixed seat; 7, friction block; 8, side slide groove; 9, side connecting rod; 10, connecting block; 11, reset spring; 12, damping rod 1; 13, moving seat; 14, inner slider 2; 15, electromagnet; 16, two-way threaded conveying rod; 17, horizontal fixed seat; 18, motor; 19, transmission ring; 20, transmission belt; 21, cutting blade; 22, powered slider ; 23. Connecting rod; 24. Gear; 25. Rack plate; 26. Horizontal platform; 27. Articulated seat one; 28. Articulated connecting rod; 29. ​​Positioning shaft; 30. Outer slider; 31. Articulated seat two; 32. Angle spring one; 33. Damping rod two; 34. Semi-arc articulated seat; 35. Articulated seat three; 36. Clamping piece; 37. Pulley; 38. Angle spring two; 39. Damping rod three; 40. Triangular fixing platform; 41. Inclined slide; 42. Collection box one; 43. Collection box two. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figures 1 to 11As shown, a film stretching and shaping device described in an embodiment of the present invention includes a stretching table 1, a lower placing seat 2 is symmetrically arranged above the stretching table 1, a film 3 is placed on the upper surface of the two lower placing seats 2, an upper placing seat 4 is arranged directly above the two lower placing seats 2, both ends of the two upper placing seats 4 are fixedly connected with an inner sliding block 5, both sides of the two upper placing seats 4 are provided with a vertical fixed seat 6, the outer wall of each inner sliding block 5 is slidably connected to the inner wall of the vertical fixed seat 6, suction components are arranged on both sides of the two upper placing seats 4, the suction components are used to drive the two upper placing seats 4 to move closer to or away from the film 3, one side of the two lower placing seats 2 is provided with a stretching component for pulling the two lower placing seats 2 away from or closer to each other, the sides of the two upper placing seats 4 are provided with a cutting component for cutting the edge of the film 3, and a tilting component for tilting the lower placing seats 2 is arranged below the two lower placing seats 2.

[0037] When working, the film 3 to be stretched is placed just above the two lower placing seats 2, and the two end edges of the film 3 are respectively in contact with the upper surface of the lower placing seat 2. At this time, the suction component is started, which can make the two inner sliding blocks 5 slide downward inside the vertical fixed seat 6 until the bottoms of the two upper placing seats 4 are tightly in contact with the edges of the upper surface of the film 3, thereby clamping the two end edges of the film 3, and at this time, the suction component can also make the two upper placing seats 4 respectively connected to the two lower placing seats 2. Then, the stretching component is started, and when the two lower placing seats 2 are driven away from each other, the two upper placing seats 4 can also be driven away, so that the film 3 clamped between the lower placing seat 2 and the upper placing seat 4 is stretched. After the film 3 is stretched to a set length, the cutting component is immediately started, and the cutting component can cut the edge of the stretched film 3. After cutting, the main part of the film 3 will fall directly for shaping, and the two unstretched edge parts will still be stored between the two lower placing seats 2 and the two upper placing seats 4. At this time, the suction component is closed. The two lower seats 2 are then moved away from each other, and the two lower seats 2 are moved away from each other.

[0038] like Figure 4 and Figure 8 As shown, the suction component includes a plurality of electromagnets 15, side slide grooves 8 are symmetrically provided on the sides of the vertical fixed seat 6, the bottom of the upper placement seat 4 is fixedly connected with a friction block 7, both sides of the inner sliding block 5 are fixedly connected with side connecting rods 9, the bottom of the side connecting rods 9 are fixedly connected with connecting blocks 10, the connecting blocks 10 are metal blocks that can be attracted by magnetic force, the connecting blocks 10 are located directly above the electromagnets 15, and the distance between the connecting blocks 10 and the electromagnets 15 is the same as the distance between the friction block 7 and the film 3.

[0039] During operation, after the film 3 is placed above the two lower placement seats 2, the electromagnet 15 is energized. Since the connecting block 10 is located directly above the electromagnet 15, the electromagnet 15 can attract the connecting block 10 to descend and adhere to the electromagnet 15 after being energized. At this time, the inner slider 5 can move downward on the inner wall of the vertical fixing seat 6. The distance between the connecting block 10 and the electromagnet 15 is the same as the distance between the friction block 7 and the film 3, so that the upper placement seat 4 can clamp the upper surface of the film 3, and increase the friction between the film 3 through the friction block 7, thereby consolidating the stability during stretching. The electromagnet 15 attracts the connecting block 10 to descend and adhere to the electromagnet 15, so as to achieve the clamping of the film 3 and connect the upper placement seat 4 with the electromagnet 15, so that the subsequent stretching assembly can simultaneously apply tension to the lower placement seat 2 and the upper placement seat 4.

[0040] like Figures 7 and 8 As shown, the stretching assembly includes a plurality of transverse fixed seats 17, and a bidirectional threaded conveying rod 16 is rotatably connected between the inner walls of every two transverse fixed seats 17, and an inner slider 14 is threadedly connected to the outer walls on both sides of each bidirectional threaded conveying rod 16, and each inner slider 14 is slidably connected and adapted to each transverse fixed seat 17, and the top of each inner slider 14 is respectively fixedly connected to the bottom of each electromagnet 15, and a moving seat 13 is fixedly connected between every two inner sliders 14, and the lower placement seat 2 is located directly above the moving seat 13, and the bidirectional threaded conveying rod 16 is provided with a driving assembly for driving the two bidirectional threaded conveying rods 16 to rotate.

[0041] During operation, starting the driving component can drive the two bidirectional threaded conveying rods 16 to rotate at the same time. When the two bidirectional threaded conveying rods 16 rotate, the inner sliding blocks 14 on both sides can slide toward the outside inside the transverse fixed seat 17 respectively. The inner sliding blocks 14 drive the two lower placement seats 2 to slide toward both sides through the moving seat 13, and the inner sliding blocks 14 can drive the electromagnet 15 to slide during the sliding process. At this time, under the action of the suction component, the connecting block 10 is connected to the electromagnet 15 together. The electromagnet 15 will drive the upper placement seat 4 to slide through the connecting block 10 during the sliding process, thereby achieving that after the upper placement seat 4 and the lower placement seat 2 clamp the film 3, the stretching component can make the two groups of lower placement seats 2 and the upper placement seat 4 slide toward both sides at the same time for stretching operation. The stretching method towards both sides improves the stability and uniformity of the stretching, and reduces the risk of the film 3 breaking.

[0042] like Figure 2 and Figure 7As shown, the drive assembly includes two transmission rings 19, which are respectively fixed on one side of two bidirectional threaded conveying rods 16, and a transmission belt 20 is connected between the outer walls of the two transmission rings 19. A motor 18 is fixedly connected to the other side of one of the bidirectional threaded conveying rods 16.

[0043] When working, start the motor 18, and its output shaft will drive a bidirectional threaded conveying rod 16 to rotate. During the rotation of the bidirectional threaded conveying rod 16, another bidirectional threaded conveying rod 16 will be driven to rotate through the transmission ring 19 and the transmission belt 20, so that the two lower placement seats 2 move on both sides at the same time to achieve a bidirectional stretching effect.

[0044] like Figures 5 and 6 As shown, the cutting assembly includes two powered sliders 22, the outer walls of the two powered sliders 22 are respectively slidably connected to the inner walls of the two friction blocks 7, the inner walls of the two powered sliders 22 are rotatably connected to connecting rods 23, one side of the two connecting rods 23 is fixedly connected to the cutting blade 21, the teeth of the two connecting rods 23 are meshed with rack plates 25, and the two rack plates 25 are respectively fixedly installed on one side of the upper placement seat 4.

[0045] During operation, after the stretching component has stretched the film 3, the energized slider 22 is controlled to slide in the inner wall of the upper placement seat 4, so that the cutting blade 21 moves along the edge position, and through the meshing relationship between the gear 24 and the rack plate 25, the cutting blade 21 can also rotate when moving along the edge position. Under the cooperation of the two, the effect of cutting the edge position is achieved, and by installing the cutting blade 21 on one side of the upper placement seat 4, no matter what state the film 3 is stretched to, the cutting blade 21 can still be aligned with the edge position.

[0046] like Figure 1 and Fig.10 As shown, one side of each vertical fixed seat 6 is fixedly connected to a transverse platform 26, the top of each transverse platform 26 is fixedly connected to an articulated seat 1 27, the shaft rod of each articulated seat 1 27 is hinged to an articulated connecting rod 28, the end of each articulated connecting rod 28 away from the articulated seat 1 27 is hinged to an articulated seat 2 31, an outer sliding block 30 is fixedly connected between one side of every two articulated seats 2 31, and a positioning shaft 29 is symmetrically fixedly connected to the top of the stretching table 1, and the two outer sliding blocks 30 are respectively slidably connected and adapted to the two positioning shafts 29.

[0047] During operation, after the suction component connects the vertical fixing seat 6 with the upper placing seat 4 and the electromagnet 15, when the stretching component moves, it will also drive the two groups of vertical fixing seats 6 to move toward both sides respectively. Through the provided hinged seat 27 and hinged connecting rod 28, when the two vertical fixing seats 6 move toward both sides, the outer sliding block 30 will slide downward on the inner wall of the positioning shaft 29. Thus, when the two vertical fixing seats 6 move toward both sides, they always maintain the same moving distance and there will be no deviation, so that the upper placing seat 4 and the lower placing seat 2 on both sides always maintain the same moving distance when moving during stretching, thereby further improving the uniformity and stability of stretching and improving the quality of stretching.

[0048] like Figure 4 and Fig.10 As shown, a damping rod 12 is fixedly connected between the bottom of the inner slider 5 and the bottom of the inner side surface of the vertical fixing seat 6, a return spring 11 is arranged outside the damping rod 12, and two ends of the return spring 11 are respectively fixedly connected to the bottom of the inner slider 5 and the bottom of the inner side surface of the vertical fixing seat 6, a damping rod 2 33 is fixedly connected to one side of the hinged connecting rod 28 and one side of the positioning shaft 29, an angle spring 32 is arranged outside the damping rod 2 33, and two ends of the angle spring 32 are respectively fixedly connected to one side of the hinged connecting rod 28 and the outer wall of the positioning shaft 29.

[0049] During operation, after the stretching is completed and the edge part is cut, the current passed through the electromagnet 15 is turned off. At this time, under the action of the reset spring 11 and the damping rod 12, the inner slider 15 and the upper placement seat 4 begin to rise and separate from the lower placement seat 2, and under the action of the angle spring 1 32 and the damping rod 2 33, the outer slider 30 moves downward along the outer wall of the positioning shaft 29, and the two vertical fixed seats 6 move back to the initial position, and under the action of the reset spring 11 and the damping rod 12, the two upper placement seats 4 are reset in the horizontal and vertical directions at the same time, and the two upper placement seats 4 are reset to the initial position to facilitate the next stretching operation.

[0050] like Figures 8 to 11 As shown, the tilting assembly includes two triangular fixed platforms 40, and the two triangular fixed platforms 40 are respectively fixedly installed on the top of the stretching platform 1, and the top surfaces of the two triangular fixed platforms 40 are provided with inclined slide grooves 41. The top of the movable seat 13 is fixedly connected with a semi-arc hinged seat 34, and the outer wall of the shaft rod of the semi-arc hinged seat 34 is hinged with a hinged seat three 35, and the hinged seat three 35 is fixedly installed at the center of the bottom of the lower placement seat 2, and one end of the bottom of the lower placement seat 2 is fixedly connected with a clamping member 36, and the outer wall of the shaft rod of the clamping member 36 is fixedly connected with a pulley 37.

[0051] During operation, when the current of the electromagnet 15 is disconnected to reset the two upper placement seats 4, the unstretched edge portion of the film 3 is located directly above the lower placement seat 2. At this time, the two lower placement seats 2 continue to slide toward the outside. During this sliding process, the clamping member 36 will gradually slide along the inner wall of the inclined slide groove 41 and rise along the inclined surface of the triangular fixed platform 40, so that one end of the lower placement seat 2 gradually tilts upward, and the articulated seat 35 gradually rotates along the shaft of the semi-arc articulated seat 34, and the edge portion above the lower placement seat 2 gradually falls out, and the unstretched edge portion is collected.

[0052] like Fig. 9 As shown, one end of the bottom of the lower placing seat 2 is fixedly connected to an angle spring 2 38, and the other end of the angle spring 2 38 is fixedly connected to the side of the moving seat 13. A damping rod 3 39 is arranged outside the angle spring 2 38, and one end of the damping rod 3 39 is fixedly connected to the bottom of the lower placing seat 2, and the other end of the damping rod 3 39 is fixedly connected to the side of the moving seat 13.

[0053] During operation, when one end of the lower placement seat 2 tilts, the other end thereof will gradually tilt downward and squeeze the damping rod three 39. After the stretching assembly controls the two lower placement seats 2 to reset, under the action of the angle spring two 38 and the damping rod three 39, the two tilted ends of the lower placement seat 2 will gradually reset.

[0054] like Figure 1 and Figure 7 As shown, a second collecting box 43 and two first collecting boxes 42 are provided on the inner side of the stretching platform 1 . The second collecting box 43 is located directly below the film 3 , and the first collecting box 42 is located directly below the triangular fixing platform 40 .

[0055] During operation, by setting the second collecting box 43, the effect of accurately collecting the cut film 3 is achieved, and by setting the first collecting box 42, the edge portion that has not been stretched is accurately collected.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A film stretching and shaping device, comprising a stretching table (1), characterized in that: A lower placement seat (2) is symmetrically arranged above the stretching table (1), a film (3) is placed on the upper surfaces of the two lower placement seats (2), an upper placement seat (4) is arranged directly above the two lower placement seats (2), both ends of the two upper placement seats (4) are fixedly connected with an inner sliding block (5), both sides of the two upper placement seats (4) are provided with a vertical fixed seat (6), the outer wall of each inner sliding block (5) is slidably connected to the inner wall of the vertical fixed seat (6), both sides of the two upper placement seats (4) are provided with a suction component, the suction component is used to drive the two upper placement seats (4) to approach or move away from the film (3), one side of the two lower placement seats (2) is provided with a stretching component used to pull the two lower placement seats (2) away from or close to each other, the side of the two upper placement seats (4) is provided with a cutting component for cutting the edge of the film (3), and the bottom of the two lower placement seats (2) is provided with a tilting component for tilting the lower placement seats (2).

2. A film stretching and shaping device according to claim 1, characterized in that: The suction component comprises a plurality of electromagnets (15), a side sliding groove (8) is symmetrically provided on the side of the vertical fixed seat (6), the bottom of the upper placement seat (4) is fixedly connected with a friction block (7), both sides of the inner sliding block (5) are fixedly connected with a side connecting rod (9), the bottom of the side connecting rod (9) is fixedly connected with a connecting block (10), the connecting block (10) is a metal block capable of magnetic attraction, the connecting block (10) is located directly above the electromagnet (15), and the distance between the connecting block (10) and the electromagnet (15) is the same as the distance between the friction block (7) and the film (3).

3. A film stretching and shaping device according to claim 2, characterized in that: The stretching assembly comprises a plurality of transverse fixed seats (17), the inner walls of each two transverse fixed seats (17) are rotatably connected with a bidirectional threaded conveying rod (16), the outer walls on both sides of each bidirectional threaded conveying rod (16) are threadedly connected with an inner sliding block (14), each inner sliding block (14) is slidably connected and matched with each transverse fixed seat (17), the top of each inner sliding block (14) is respectively fixedly connected with the bottom of each electromagnet (15), a moving seat (13) is fixedly connected between each two inner sliding blocks (14), the lower placement seat (2) is located directly above the moving seat (13), and the bidirectional threaded conveying rod (16) is provided with a driving assembly for driving the two bidirectional threaded conveying rods (16) to rotate.

4. A film stretching and shaping device according to claim 3, characterized in that: The driving assembly comprises two transmission rings (19), the two transmission rings (19) are respectively fixed to one side of two bidirectional threaded conveying rods (16), a transmission belt (20) is transmission-connected between the outer walls of the two transmission rings (19), and a motor (18) is fixedly connected to the other side of one of the bidirectional threaded conveying rods (16).

5. A film stretching and shaping device according to claim 4, characterized in that: The cutting assembly comprises two powered sliders (22), the outer walls of the two powered sliders (22) are respectively slidably connected to the inner walls of the two friction blocks (7), the inner walls of the two powered sliders (22) are rotatably connected to connecting rods (23), one side of the two connecting rods (23) is fixedly connected to a cutting blade (21), the teeth of the two connecting rods (23) are meshed with rack plates (25), and the two rack plates (25) are respectively fixedly mounted on one side of the upper placement seat (4).

6. A film stretching and shaping device according to claim 5, characterized in that: One side of each vertical fixed seat (6) is fixedly connected to a transverse platform (26), the top of each transverse platform (26) is fixedly connected to an articulated seat 1 (27), the shaft of each articulated seat 1 (27) is articulated to an articulated connecting rod (28), the end of each articulated connecting rod (28) away from the articulated seat 1 (27) is articulated to an articulated seat 2 (31), one side of each two articulated seats 2 (31) is fixedly connected to an outer sliding block (30), the top of the stretching platform (1) is symmetrically fixedly connected to a positioning shaft (29), and the two outer sliding blocks (30) are respectively slidably connected to and adapted to the two positioning shafts (29).

7. A film stretching and shaping device according to claim 6, characterized in that: A damping rod (12) is fixedly connected between the bottom of the inner slider (5) and the bottom of the inner side surface of the vertical fixing seat (6); a return spring (11) is arranged outside the damping rod (12); two ends of the return spring (11) are respectively fixedly connected to the bottom of the inner slider (5) and the bottom of the inner side surface of the vertical fixing seat (6); a damping rod (33) is fixedly connected to one side of the hinged connecting rod (28) and one side of the positioning shaft (29); an angle spring (32) is arranged outside the damping rod (33); two ends of the angle spring (32) are respectively fixedly connected to one side of the hinged connecting rod (28) and the outer wall of the positioning shaft (29).

8. A film stretching and shaping device according to claim 7, characterized in that: The tilting assembly comprises two triangular fixed platforms (40), the two triangular fixed platforms (40) are respectively fixedly installed on the top of the stretching platform (1), the top surfaces of the two triangular fixed platforms (40) are both provided with inclined sliding grooves (41), the top of the movable seat (13) is fixedly connected with a semi-arc hinge seat (34), the outer wall of the shaft rod of the semi-arc hinge seat (34) is hinged with a hinge seat three (35), the hinge seat three (35) is fixedly installed at the center of the bottom of the lower placement seat (2), one end of the bottom of the lower placement seat (2) is fixedly connected with a clamping member (36), and the outer wall of the shaft rod of the clamping member (36) is fixedly connected with a pulley (37).

9. A film stretching and shaping device according to claim 8, characterized in that: One end of the bottom of the lower placement seat (2) is fixedly connected to an angle spring 2 (38), the other end of the angle spring 2 (38) is fixedly connected to the side of the movable seat (13), a damping rod 3 (39) is arranged outside the angle spring 2 (38), one end of the damping rod 3 (39) is fixedly connected to the bottom of the lower placement seat (2), and the other end of the damping rod 3 (39) is fixedly connected to the side of the movable seat (13).

10. A film stretching and shaping device according to claim 9, characterized in that: A second collecting box (43) and two first collecting boxes (42) are arranged on the inner side of the stretching platform (1), wherein the second collecting box (43) is located directly below the film (3), and the first collecting box (42) is located directly below the triangular fixing platform (40).

Images