A film tearing machine

Abstract

A film tearing machine comprises a feeding mechanism, a film tearing mechanism and a discharging mechanism, wherein the feeding mechanism, the film tearing mechanism and the discharging mechanism are connected in sequence, the feeding mechanism comprises a feeding rubber roller and a feeding knurled wheel, the film tearing mechanism comprises a feeding plate, a lower film tearing steel brush and an upper film tearing steel brush, the discharging mechanism comprises a discharging rubber roller and a discharging knurled wheel, the feeding knurled wheel and the discharging knurled wheel are connected to a driving assembly, the feeding rubber roller is arranged above the feeding knurled wheel and in contact with the feeding knurled wheel, the discharging rubber roller is arranged above the discharging knurled wheel and in contact with the discharging knurled wheel, the feeding plate is arranged between the feeding mechanism and the discharging mechanism and runs through the entire film tearing mechanism, the lower film tearing steel brush is arranged on the lower side of the feeding plate, and the upper film tearing steel brush is arranged on the upper side of the feeding plate. The film tearing machine of the present invention can realize automatic film tearing of acrylic plates, can greatly improve the film tearing efficiency compared with the traditional manual film tearing method, and can accurately separate the upper film and the lower film of the acrylic plate.

Description

Technical Field

[0001] The invention particularly relates to a film tearing machine. Background Art

[0002] Some factories in the market cut acrylic sheets, and the relatively regular long strips of tailings left after processing can be recycled, crushed and melted, and remade into sheets. However, before recycling, the protective films on the upper and lower surfaces of the tailings need to be separated; there are small workshops in the market that are specifically designed for this process, which transport bags of tailings back, tear off the films in a unified manner, and then pack them and send them to plastic factories. However, many workshops currently use a purely manual method with nails and brushes, tearing off a little film of the tailings one by one, and then grabbing a handful of the film that has been opened with the hand, and separating the film from the acrylic from top to bottom; repeating the above actions for a day, the efficiency and accuracy have certain fluctuations.

[0003] Therefore, further improvements are necessary. Summary of the invention

[0004] The purpose of the present invention is to provide a film tearing machine with simple and reasonable structure, high film tearing efficiency, good film tearing quality and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A film tearing machine designed for this purpose comprises a feeding mechanism, a film tearing mechanism and a discharging mechanism, which are connected in sequence and are characterized in that: the feeding mechanism comprises a feeding rubber roller and a feeding knurled wheel, the film tearing mechanism comprises a feeding plate, a lower film tearing steel brush and an upper film tearing steel brush, the discharging mechanism comprises a discharging rubber roller and a discharging knurled wheel, the feeding knurled wheel and the discharging knurled wheel are connected to a driving assembly, the feeding rubber roller is arranged above the feeding knurled wheel and in contact with the feeding knurled wheel, the discharging rubber roller is arranged above the discharging knurled wheel and in contact with the discharging knurled wheel The film tearing machine is in contact with the feeding mechanism and the discharging mechanism, and the feeding plate is arranged between the feeding mechanism and the discharging mechanism and runs through the entire film tearing mechanism. The lower film tearing steel brush is arranged on the lower side of the feeding plate, and the upper film tearing steel brush is arranged on the upper side of the feeding plate. When the film tearing machine is working, the material passes through the position between the feeding rubber roller and the feeding knurled wheel and reaches the feeding plate. The lower side of the material contacts with the rotating lower film tearing steel brush, and the upper side of the material contacts with the rotating upper film tearing steel brush, so that the lower film and the upper film are taken away from the surface of the material. After the lower film and the upper film are separated from the material, the material leaves the film tearing machine from the position between the discharging rubber roller and the discharging knurled wheel.

[0006] It also includes a material supporting plate and a discharging guide plate. The material supporting plate is connected to the feeding mechanism. A thickness adjustment plate and an inclined adjustment seat are provided at one end of the material supporting plate connected to the feeding mechanism. A gap for material to pass through is provided between the thickness adjustment plate and the material supporting plate. The thickness adjustment plate is movably arranged on the inclined surface of the adjustment seat to adjust the size of the gap. The discharging guide plate is connected to the discharging mechanism.

[0007] The two sides of the feed rubber roller are connected with a first elastic member, which is located on the upper side of the feed rubber roller and elastically acts on the feed rubber roller to make the feed rubber roller contact with the feed knurling wheel; the two sides of the discharge rubber roller are connected with a second elastic member, which is located on the upper side of the discharge rubber roller and elastically acts on the discharge rubber roller to make the discharge rubber roller contact with the discharge knurling wheel.

[0008] The driving assembly includes a first motor, a synchronous wheel and a synchronous belt. The first motor is connected to each synchronous wheel through the synchronous belt drive, and the feed knurling wheel and the discharge knurling wheel are respectively connected to the corresponding synchronous wheels.

[0009] The film tearing mechanism also includes a blower, a lower blowing pipe and an upper blowing pipe. The blower is respectively connected to one end of the lower blowing pipe and one end of the upper blowing pipe. The other end of the lower blowing pipe is located below the lower film tearing steel brush and faces the feeding plate. The other end of the upper blowing pipe is located above the upper film tearing steel brush and faces the feeding plate.

[0010] The film tearing mechanism also includes a protective cover, a front observation window and an upper observation window. The protective cover is arranged between the feeding mechanism and the discharging mechanism. The feeding plate, the lower film tearing steel brush and the upper film tearing steel brush are arranged in the protective cover. A middle partition is arranged in the protective cover. The middle partition divides the protective cover into an upper area and a lower area. The upper film tearing steel brush is located in the upper area, the feeding plate and the lower film tearing steel brush are located in the lower area, the other end of the lower blowing pipe passes through the side plate of the protective cover and is inserted into the lower area, the front observation window is arranged at the front opening of the protective cover, the upper observation window is arranged at the upper opening of the protective cover, and the other end of the upper blowing pipe passes through the upper observation window and is inserted into the upper area.

[0011] It also includes a second motor, a motor mounting plate and a lifting mechanism. The lower film-tearing steel brush and the upper film-tearing steel brush are respectively connected to the corresponding second motor. The second motor is mounted on the motor mounting plate, and the motor mounting plate is movably arranged on the lifting mechanism.

[0012] The lifting mechanism includes a handwheel, a turbine, a worm, a linear bearing slide assembly, a lead screw, a nut, a locking handle and a fixed seat. The turbine, the worm, the linear bearing slide assembly, the lead screw and the locking handle are installed on the fixed seat. One end of the worm is connected to the handwheel, and the worm is meshed with the turbine for transmission. The turbine is connected to one end of the lead screw. The nut is sleeved on the lead screw and connected to the motor mounting plate. The motor mounting plate is connected to the linear bearing slide assembly and is set on the fixed seat through the linear bearing slide assembly to slide up and down.

[0013] It also includes an electric control box and a control panel. The electric control box is provided with a frequency converter, the frequency converter is electrically connected to the first motor, the second motor and the blower respectively, and the control panel is electrically connected to the first motor, the second motor and the blower respectively.

[0014] The utility model also comprises a frame, on which a feeding mechanism, a film tearing mechanism, a discharging mechanism, a lifting mechanism, a driving component, an electric control box, a control panel and a material supporting plate are installed.

[0015] The film tearing machine of the present invention can realize automatic film tearing of acrylic plates. Compared with the traditional manual film tearing method, the film tearing efficiency can be greatly improved, and the upper film and the lower film of the acrylic plate can be accurately separated. The film tearing machine is designed for acrylic plates with highly repetitive processes and relatively uniform specifications of tail materials; a thickness adjustment plate is arranged in front of the feeding mechanism of the film tearing machine, which can adjust the size of the gap through which the material passes to adapt to materials of different thicknesses and improve the film tearing quality. After the material is torn off, the film is blown out of the equipment through the blowing pipe to prevent the film from accumulating inside the equipment and causing blockage; the upper and lower positions of the lower film tearing steel brush and the upper film tearing steel brush can be fine-tuned through the lifting mechanism to adapt to materials of different thicknesses and further improve the film tearing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of a film tearing machine in one embodiment of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of another aspect of the film tearing machine in one embodiment of the present invention.

[0018] Figure 3-Figure 6 It is a schematic diagram of the overall structure of a film tearing machine in different orientations in one embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1-Figure 6The film tearing machine comprises a feeding mechanism, a film tearing mechanism and a discharging mechanism, which are connected in sequence. The feeding mechanism comprises a feeding rubber roller 1 and a feeding knurled wheel 2, the film tearing mechanism comprises a feeding plate 3, a lower film tearing steel brush 4 and an upper film tearing steel brush 5, the discharging mechanism comprises a discharging rubber roller 6 and a discharging knurled wheel 7, the feeding knurled wheel 2 and the discharging knurled wheel 7 are connected to a driving assembly, the feeding rubber roller 1 is arranged above the feeding knurled wheel 2 and contacts with the feeding knurled wheel 2, the discharging rubber roller 6 is arranged above the discharging knurled wheel 7 and contacts with the discharging knurled wheel 7, the feeding plate 3 is arranged between the feeding mechanism and the discharging mechanism, and runs through the entire film tearing mechanism as a channel for the material 8 to pass through, the lower film tearing steel brush 4 is arranged on the lower side of the feeding plate 3, and the upper film tearing steel brush 5 is arranged on the upper side of the feeding plate 3.

[0021] It also includes a material support plate 9 and a discharge guide plate 10. The material support plate 9 is connected to the feeding mechanism. A thickness adjustment plate 11 and an inclined adjustment seat 12 are provided at one end of the material support plate 9 connected to the feeding mechanism. A gap for the material 8 to pass through is provided between the thickness adjustment plate 11 and the material support plate 9. The thickness adjustment plate 11 is movably provided on the inclined surface of the adjustment seat 12 to adjust the gap size. The discharge guide plate 10 is connected to the discharge mechanism. When the film tearing machine is working, the operator can first grab a handful of material 8 to be processed and place the material 8 to be processed on the material support plate 9 to avoid grabbing the material multiple times in a short time; by adjusting the gap between the thickness adjustment plate 11 and the material support plate 9 to adapt to materials 8 of different thicknesses, it is prevented that the overly thick material 8 enters the film tearing mechanism where the thickness of the film tearing material has been adjusted, and affects the film tearing quality.

[0022] The first compression spring 13 is connected to both sides of the feed rubber roller 1, and the first compression spring 13 is located on the upper side of the feed rubber roller 1 and acts elastically on the feed rubber roller 1, so that the feed rubber roller 1 contacts the feed knurling wheel 2; the second compression spring 14 is connected to both sides of the discharge rubber roller 6, and the second compression spring 14 is located on the upper side of the discharge rubber roller 6 and acts elastically on the discharge rubber roller 6, so that the discharge rubber roller 6 contacts the discharge knurling wheel 7. Under the action of the elastic member, the rubber roller is always in contact with the knurling wheel, which can provide good friction when the material 8 enters and is not easy to slip.

[0023] The driving assembly includes a first motor 15, a synchronous wheel 16 and a synchronous belt 17. The first motor 15 is connected to each synchronous wheel 16 through the synchronous belt 17. The feed knurling wheel 2 and the discharge knurling wheel 7 are respectively connected to the corresponding synchronous wheels 16. The feed knurling wheel 2 and the discharge knurling wheel 7 are active wheels, and the power comes from the three-phase motor and the synchronous wheel 16 and the synchronous belt 17 connected thereto. The feed rubber roller 1 and the discharge rubber roller 6 are passive wheels, and are driven by the feed knurling wheel 2 and the discharge knurling wheel 7 to rotate respectively; the feed knurling wheel 2 and the discharge knurling wheel 7 use the same power source, so that the speed of the feed mechanism and the discharge mechanism is consistent, and the feed and discharge conveying is more stable.

[0024] The film tearing mechanism also includes a blower 37, a lower blowing pipe 18 and an upper blowing pipe 19. The blower 37 is connected to one end of the lower blowing pipe 18 and one end of the upper blowing pipe 19 respectively. The other end of the lower blowing pipe 18 is located below the lower film tearing steel brush 4 and faces the material passing plate 3. The other end of the upper blowing pipe 19 is located above the upper film tearing steel brush 5 and faces the material passing plate 3. The blower 37 can provide strong wind and blow it out through the blowing pipe to blow the film torn from the material 8 out of the equipment to prevent the film from accumulating inside the equipment and causing material blockage.

[0025] The film tearing mechanism also includes a protective cover 20, a front observation window 21 and an upper observation window 22. The protective cover 20 is arranged between the feeding mechanism and the discharging mechanism. The feeding plate 3, the lower film tearing steel brush 4 and the upper film tearing steel brush 5 are arranged in the protective cover 20. An intermediate partition 23 is arranged in the protective cover 20. The intermediate partition 23 divides the protective cover 20 into an upper area 20.1 and a lower area 20.2. The upper film tearing steel brush 5 is located in the upper area 20.1, the feeding plate 3 and the lower film tearing steel brush 4 are located in the lower area 20.2, the other end of the lower blowing pipe 18 passes through the side plate of the protective cover 20 and is inserted into the lower area 20.2, the front observation window 21 is arranged at the front opening of the protective cover 20, the upper observation window 22 is arranged at the upper opening of the protective cover 20, and the other end of the upper blowing pipe 19 passes through the upper observation window 22 and is inserted into the upper area 20.1. The film tearing of the material 8 is carried out inside the protective cover 20, which can prevent external interference with the film tearing of the material and ensure that the material 8 can be torn smoothly. At the same time, it can also ensure that the torn film is blown out of the equipment smoothly to prevent the film from being blown to other positions inside the equipment. The tearing of the upper film of the material 8 is carried out in the upper area 20.1, and the tearing of the lower film of the material 8 is carried out in the lower area 20.2. The two are carried out in independent areas and do not interfere with each other. The tearing of the material 8 can be observed through the front observation window 21 and the upper observation window 22.

[0026] It also includes a second motor 24, a motor mounting plate 25 and a lifting mechanism. The lower film-tearing steel brush 4 and the upper film-tearing steel brush 5 are respectively connected to the corresponding second motor 24. The second motor 24 is a three-phase motor, which drives the lower film-tearing steel brush 4 and the upper film-tearing steel brush 5 to rotate. The second motor 24 is installed on the motor mounting plate 25, and the motor mounting plate 25 is movably arranged on the lifting mechanism.

[0027] The lifting mechanism includes a handwheel 26, a turbine 27, a worm 28, a linear bearing slide assembly 29, a trapezoidal lead screw 30, a trapezoidal nut 31, a locking handle 32 and a fixed seat 33. The turbine 27, the worm 28, the linear bearing slide assembly 29, the lead screw 30 and the locking handle 32 are installed on the fixed seat 33. The fixed seat 33 is fixed on the frame 36. One end of the worm 28 is connected to the handwheel 26. The worm 28 is meshed with the turbine 27 for transmission. The turbine 27 is connected to the upper end of the lead screw 30. The nut 31 is sleeved on the lead screw 30 and connected to the motor mounting plate 25. The motor mounting plate 25 is connected to the linear bearing slide assembly 29 and is set on the fixed seat 33 by sliding up and down through the linear bearing slide assembly 29. By shaking the hand wheel 26, the worm 28 is rotated, and then the worm 28 drives the turbine 27 to rotate, and the screw rod 30 rotates with the rotation of the turbine 27, thereby driving the nut 31 matched therewith to move up and down, so that the motor mounting plate 25 can be driven to slide up and down on the fixed seat 33 under the guidance of the linear bearing slide rail assembly 29, thereby driving the second motor 24 to move up and down, so as to fine-tune the upper and lower positions of the lower film-tearing steel brush 4 and the upper film-tearing steel brush 5 to adapt to materials 8 of different thicknesses; because the turbine worm has a large transmission ratio, the hand wheel 26 rotates several circles, the turbine 27 It only turns one circle, which is more conducive to fine-tuning operation for acrylic materials of different thicknesses but only 1-2mm difference; the lifting mechanism is equipped with a scale to observe the lifting value; after the upper and lower positions of the lower film-tearing steel brush 4 and the upper film-tearing steel brush 5 are fine-tuned, the locking handle 32 is used to lock the entire lifting mechanism (specifically, when the locking handle 32 is tightened, the top rod of the locking handle 32 supports the motor mounting plate 25, so that the motor mounting plate 25 cannot move, thereby preventing the parts in the lifting mechanism from moving) to prevent the operator from accidentally touching the handwheel 26 and affecting the height value.

[0028] It also includes an electric control box 34 and a control panel 35. The electric control box 34 is provided with a frequency converter, which is electrically connected to the first motor 15, the second motor 24, and the blower 37 respectively. The control panel 35 is electrically connected to the first motor 15, the second motor 24, and the blower 37 respectively. The frequency converter is used to adjust the speed of the first motor 15 and the second motor 24 so that the working condition achieves an ideal effect.

[0029] It also includes a frame 36, on which a feeding mechanism, a film tearing mechanism, a discharging mechanism, a lifting mechanism, a driving assembly, an electric control box 34, a control panel 35 and a material supporting plate 9 are installed, wherein a control panel bracket 38 is installed on the frame 36, and the control panel 35 is fixedly installed on the top of the control panel bracket 38.

[0030] The working principle of film tearing machine:

[0031] The operator presses the start button on the control panel 35, and all the motors of the equipment start to operate. Then, the thickness adjustment plate 11 and the lifting mechanism are adjusted according to the thickness of the material 8. The material 8 (acrylic plate tailings) is gently pushed into the feeding mechanism by hand. Under the cooperation of the feeding rubber roller 1 and the feeding knurled wheel 2, the material 8 passes through the position between the feeding rubber roller 1 and the feeding knurled wheel 2, and then enters the film tearing mechanism and reaches the feeding plate 3. When the material 8 passes through the feeding plate 3 (that is, passes through the position between the lower film tearing steel brush 4 and the upper film tearing steel brush 5), it first passes through the lower film tearing steel brush 4. The steel wire on the surface of the lower film tearing steel brush 4 runs at high speed and contacts with the lower surface of the material 8, and the lower film of the material 8 is removed from the surface of the material 8. The removed film will be suspended in the air. At this time, the strong wind force of the lower blowing pipe 18 can be used to remove the lower film from the inside to the outside until the entire material 8 is completely passed through the lower film tearing steel brush. After brushing 4, the lower film is separated from the material 8, and the lower film is blown out of the equipment. Then the material 8 passes through the upper film-tearing steel brush 5. The steel wire on the surface of the upper film-tearing steel brush 5 runs at high speed and contacts with the upper surface of the material 8, so as to remove the upper film of the material 8 from the surface of the material 8. The removed film will be suspended in the air. At this time, the strong wind force of the upper blowing pipe 19 can remove the upper film from the inside to the outside, until the entire material 8 completely passes through the upper film-tearing steel brush 5. The upper film is separated from the material 8 and blown out of the equipment. After the material 8 is peeled off by the lower film-tearing steel brush 4 and the upper film-tearing steel brush 5 (that is, after passing through the feed plate 3), it enters the discharging mechanism. Under the cooperation of the discharging rubber roller 6 and the discharging knurled wheel 7, the material 8 passes through the position between the discharging rubber roller 6 and the discharging knurled wheel 7. Finally, the material 8 reaches the discharging guide plate 10 and reaches the designated material frame under the guidance of the discharging guide plate 10.

[0032] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A film tearing machine, comprising a feeding mechanism, a film tearing mechanism and a discharging mechanism, wherein the feeding mechanism, the film tearing mechanism and the discharging mechanism are connected in sequence, and characterized in that: The feeding mechanism comprises a feeding rubber roller (1) and a feeding knurled wheel (2); the film tearing mechanism comprises a feeding plate (3), a lower film tearing steel brush (4) and an upper film tearing steel brush (5); the discharging mechanism comprises a discharging rubber roller (6) and a discharging knurled wheel (7); the feeding knurled wheel (2) and the discharging knurled wheel (7) are connected to a driving assembly; the feeding rubber roller (1) is arranged above the feeding knurled wheel (2) and in contact with the feeding knurled wheel (2); the discharging rubber roller (6) is arranged above the discharging knurled wheel (7) and in contact with the discharging knurled wheel (7); the feeding plate (3) is arranged between the feeding mechanism and the discharging mechanism and runs through the entire film tearing machine. The film-tearing machine has a structure in which a lower film-tearing steel brush (4) is arranged on the lower side of the feeding plate (3), and an upper film-tearing steel brush (5) is arranged on the upper side of the feeding plate (3); when the film-tearing machine is in operation, the material (8) passes through the position between the feeding rubber roller (1) and the feeding knurled wheel (2) and reaches the feeding plate (3), the lower side of the material (8) contacts the rotating lower film-tearing steel brush (4), and the upper side of the material (8) contacts the rotating upper film-tearing steel brush (5), so that the lower film and the upper film are separated from the surface of the material (8), and after the lower film and the upper film are separated from the material (8), the material (8) leaves the film-tearing machine from the position between the discharging rubber roller (6) and the discharging knurled wheel (7); It also includes a material support plate (9) and a discharge guide plate (10), the material support plate (9) is connected to the feed mechanism, one end of the material support plate (9) connected to the feed mechanism is provided with a thickness adjustment plate (11) and an inclined adjustment seat (12), a gap for the material (8) to pass through is provided between the thickness adjustment plate (11) and the material support plate (9), the thickness adjustment plate (11) is movably provided on the inclined surface of the adjustment seat (12) to adjust the size of the gap, and the discharge guide plate (10) is connected to the discharge mechanism; The two sides of the feed rubber roller (1) are connected to a first elastic member (13), the first elastic member (13) is located on the upper side of the feed rubber roller (1) and elastically acts on the feed rubber roller (1), so that the feed rubber roller (1) contacts the feed knurling wheel (2); the two sides of the discharge rubber roller (6) are connected to a second elastic member (14), the second elastic member (14) is located on the upper side of the discharge rubber roller (6) and elastically acts on the discharge rubber roller (6), so that the discharge rubber roller (6) contacts the discharge knurling wheel (7); The driving assembly comprises a first motor (15), a synchronous wheel (16) and a synchronous belt (17); the first motor (15) is connected to each synchronous wheel (16) through the synchronous belt (17); the inlet knurling wheel (2) and the outlet knurling wheel (7) are respectively connected to the corresponding synchronous wheel (16); The film tearing mechanism further comprises a blower (37), a lower blowing pipe (18) and an upper blowing pipe (19), the blower (37) being connected to one end of the lower blowing pipe (18) and one end of the upper blowing pipe (19) respectively, the other end of the lower blowing pipe (18) being located below the lower film tearing steel brush (4) and facing the feed plate (3), and the other end of the upper blowing pipe (19) being located above the upper film tearing steel brush (5) and facing the feed plate (3); The film-tearing mechanism further comprises a protective cover (20), a front observation window (21) and an upper observation window (22); the protective cover (20) is arranged between the feeding mechanism and the discharging mechanism; the feeding plate (3), the lower film-tearing steel brush (4) and the upper film-tearing steel brush (5) are arranged in the protective cover (20); a middle partition (23) is arranged in the protective cover (20); the middle partition (23) divides the protective cover (20) into an upper area (20.1) and a lower area (20.2); the upper film-tearing steel brush (5) is located at In the upper area (20.1), the feed plate (3) and the lower film-tearing steel brush (4) are located in the lower area (20.2), the other end of the lower air blowing pipe (18) passes through the side plate of the protective cover (20) and is inserted into the lower area (20.2), the front observation window (21) is arranged at the front opening of the protective cover (20), the upper observation window (22) is arranged at the upper opening of the protective cover (20), and the other end of the upper air blowing pipe (19) passes through the upper observation window (22) and is inserted into the upper area (20.1); It also includes a second motor (24), a motor mounting plate (25) and a lifting mechanism, wherein the lower film-tearing steel brush (4) and the upper film-tearing steel brush (5) are respectively connected to the corresponding second motor (24), the second motor (24) is a three-phase motor, and drives the lower film-tearing steel brush (4) and the upper film-tearing steel brush (5) to rotate, the second motor (24) is mounted on the motor mounting plate (25), and the motor mounting plate (25) is movably arranged on the lifting mechanism up and down; The lifting mechanism comprises a hand wheel (26), a worm wheel (27), a worm (28), a linear bearing rail assembly (29), a screw (30), a nut (31), a locking handle (32) and a fixed seat (33). The worm wheel (27), the worm (28), the linear bearing rail assembly (29), the screw (30) and the locking handle (32) are mounted on the fixed seat (33). The fixed seat (33) is fixed on the frame (36). One end of the worm (28) is connected to the hand wheel (26). The worm (28) and the worm wheel (27) are meshed and driven. The worm wheel (27) is connected to one end of the screw (30). The nut (31) is sleeved on the screw (30) and connected to the motor mounting plate (25). The motor mounting plate (25) is connected to the linear bearing rail assembly (29) and is slidably arranged on the fixed seat (33) through the linear bearing rail assembly (29). The lifting mechanism is provided with a scale.

2. The film tearing machine according to claim 1, characterized in that: It also includes an electric control box (34) and a control panel (35). The electric control box (34) is provided with a frequency converter, and the frequency converter is electrically connected to the first motor (15), the second motor (24), and the blower (37) respectively. The control panel (35) is electrically connected to the first motor (15), the second motor (24), and the blower (37) respectively.

3. The film tearing machine according to claim 2, characterized in that: It also includes a frame (36), on which a feeding mechanism, a film tearing mechanism, a discharging mechanism, a lifting mechanism, a driving assembly, an electric control box (34), a control panel (35) and a material supporting plate (9) are mounted.

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