Flattening device for thin film conveying

Abstract

The utility model discloses a film conveying flattening device which comprises a base, a flattening roller, a supporting seat and a height adjusting assembly, the flattening roller is rotationally connected with the supporting seat, the supporting seat vertically moves relative to the inner side of the base, and the height adjusting assembly comprises a lead screw, a height adjusting nut, an electromagnetic clutch and a power gear. The power gear and the lead screw are connected with the two sides of the electromagnetic clutch respectively, the lead screw is sleeved with the height adjusting nut, the height adjusting nut vertically moves along the lead screw, the height adjusting nut is connected with the supporting seat, and when the electromagnetic clutch is connected, the power gear drives the flattening roller to vertically slide. The electromagnetic clutch drives the lead screw to rotate so that the height adjusting nut can vertically slide back and forth along the lead screw, the supporting base and the flattening roller are driven to vertically slide back and forth, the height of the flattening roller is adjusted, when the flattening roller reaches the needed height, the electromagnetic clutch is disconnected in time, and the flattening roller stops moving vertically in time; and the electromagnetic clutch realizes an instant stop function.

Description

Technical Field

[0001] The utility model relates to the technical field of film conveying, in particular to a flattening device for film conveying. Background Art

[0002] In the continuous production of film, the flattening device plays the role of conveying the formed film and flattening the formed film. The flatness of the film during the conveying process is very important. If the film is not flat, for the film that needs to be rolled, the film after being rolled will appear uneven, affecting the entire roll of film. For the film that needs to be attached to the plate, wrinkles will appear on the plate, resulting in low flatness of the plate and film. In order to deal with various unevenness problems of the film during transportation, the flattening device has become an indispensable key equipment. The flattening device can eliminate the unevenness of the film in the traveling direction and the transverse direction. In the roller-type flattening device, the film is mainly plastically deformed by applying transverse tension and pressure perpendicular to the film surface, thereby eliminating the unevenness of the film.

[0003] In actual processing, since the thickness of the film to be processed is different, such as the thickness of the film itself or the thickness of the film after being attached to plates of various thicknesses, in order to adapt to films of different thicknesses, it is necessary to adjust the distance between the roller and the processing surface to adapt to films of different thicknesses. In the existing flattening device, it is necessary to manually adjust the distance between the roller and the processing surface. Furthermore, since the material of the film and the requirements for the flatness of the film are different, it is necessary to adjust the pressure of the roller on the film to adapt to different films. The existing flattening device cannot adjust the pressure of the roller on the film. Therefore, the utility model provides a flattening device for film transportation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a flattening device for film conveying.

[0005] To achieve the above-mentioned purpose, the utility model discloses a flattening device for film conveying, comprising a base, a flattening roller, a support seat, and a height adjustment component, wherein the base is provided with a processing surface for carrying the film being conveyed, the processing surface is located on the upper side of the base, the flattening roller is rotatably connected to the support seat and is located on the upper side of the processing surface, the processing surface of the base is provided with a through-hole, and the support seat moves vertically on the inner side of the through-hole, and the height adjustment component comprises a screw rod, a height adjustment nut, an electromagnetic clutch, and a rotating power gear, the power gear is transmission-connected to the active end of the electromagnetic clutch, the screw rod is transmission-connected to the driven end of the electromagnetic clutch, the height adjustment nut is sleeved on the screw rod and moves vertically along the screw rod, the height adjustment nut is connected to the support seat, and when the active end is engaged with the driven end, the power gear drives the screw rod to rotate to drive the height adjustment nut, the support seat, and the flattening roller to slide vertically.

[0006] Wherein, the height adjustment assembly further includes a main bevel gear and a slave bevel gear, the main bevel gear is transmission-connected to the power gear, the slave bevel gear is fixedly connected to the lower end of the screw rod, and the main bevel gear and the slave bevel gear are meshed for transmission.

[0007] Wherein, the height adjustment assembly also includes a main reduction gear and a slave reduction gear, the number of teeth of the slave reduction gear is greater than the number of teeth of the main reduction gear, the main reduction gear is transmission connected to the power gear, and the slave reduction gear is transmission connected to the screw rod.

[0008] Wherein, the height adjustment assembly also includes a transmission belt, a main pulley, and a slave pulley. The main pulley is connected to the power gear, the slave pulley is connected to the screw, and the transmission belt is longitudinally sleeved between the main pulley and the slave pulley.

[0009] Wherein, the height adjustment component also includes a first slide rail, which is vertically connected to the side of the support seat, and the side of the perforation is provided with a slide groove, and the first slide rail slides vertically on the inner side of the slide groove.

[0010] It also includes an elastic force adjustment component, which includes a spring, a connecting seat, an abutment seat, and a positioning mechanism. The support seat is provided with a laterally extending sliding hole. The connecting seat is connected to the rotating shaft of the flattening roller. The connecting seat is vertically slidably connected to the sliding hole. The abutment seat is located on the upper side of the connecting seat. The positioning mechanism is used to adjust the distance between the abutment seat and the connecting seat to adjust the elastic force of the spring.

[0011] In which, the positioning mechanism includes a bolt, the top surface of the abutment seat is rotatably connected to the bolt, the top surface of the support seat is provided with a screw hole, the screw hole penetrates into the sliding hole, the bolt passes through the screw hole and is threadedly connected to the screw hole, and the spring is connected between the connecting seat and the abutment seat.

[0012] The top surface of the connecting seat is connected with a guide bar, the abutting seat is provided with a guide hole, the abutting seat is slidingly connected with the guide bar through the guide hole, and the spring is sleeved on the guide bar and located between the connecting seat and the abutting seat.

[0013] The top surface of the guide bar is connected with a cap portion, the cap portion is round and coaxial with the guide bar, and the radius of the cap portion is greater than the radius of the guide bar.

[0014] Wherein, the elastic force adjustment component includes a second slide rail, the second slide rail is vertically connected to the inner side surface of the sliding hole, the abutment seat is provided with a sliding groove and / or the connecting seat is provided with a sliding groove, and the sliding groove is vertically slidably connected to the second slide rail.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the height adjustment component plays the role of adjusting the height of the flattening roller, the electromagnetic clutch engages, the active end and the driven end of the electromagnetic clutch engage, the active end and the driven end rotate synchronously, the motor drives the power gear to rotate, and the rotating power gear drives the lead screw to rotate through the electromagnetic clutch, and the rotating lead screw causes the height adjustment nut to slide vertically back and forth along the lead screw, and the vertically sliding back and forth height adjustment nut drives the support seat to slide vertically back and forth, and the support seat drives the flattening roller to slide vertically, thereby adjusting the vertical distance between the flattening roller and the processing surface to adapt to films of different thicknesses; after the electromagnetic clutch is engaged, when the motor drives the flattening roller to the required height through the electromagnetic clutch, the electromagnetic clutch is immediately disconnected, and the flattening roller immediately stops vertical movement, and the electromagnetic clutch realizes the function of instant stop.

[0016] The elastic force adjustment component plays the role of adjusting the pressure of the flattening roller on the film. When the pressure of the flattening roller on the film needs to be adjusted, the positioning mechanism drives the abutment seat, and the abutment seat slides vertically relative to the support seat. The support seat slides downward, compresses the spring, and the elastic force of the spring increases, and the elastic force on the connecting seat also increases, thereby increasing the pressure of the flattening roller on the film. The support seat slides upward, stretches the spring, and the elastic force of the spring decreases, and the elastic force on the connecting seat also decreases, thereby reducing the pressure of the flattening roller on the film, thereby realizing the pressure adjustment of the flattening roller on the film.

[0017] In the continuous production of films, the height adjustment component adapts to films of different heights, the elastic adjustment component adjusts the pressure of the flattening roller on the film, and the flattening device flattens the film during transportation. For films that need to be rolled, the regularity of the film after being rolled is improved. For films that need to be attached to a plate, the flatness of the film on the plate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;

[0019] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic structural diagram of the height adjustment assembly of the present invention from a first perspective;

[0021] Figure 4 This is a structural diagram of the height adjustment assembly of the present invention from a second viewing angle;

[0022] Figure 5 This is a structural diagram of the elastic force adjustment component of the present invention from a first perspective;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of area A in the middle;

[0024] Figure 7 This is a structural diagram of the elastic force adjustment component of the present invention from a second viewing angle;

[0025] Figure 8 for Figure 7 Schematic diagram of the enlarged area B.

[0026] Markings: 11. Base; 12. Flattening roller; 13. Support seat; 15. Screw; 16. Height adjustment nut; 17. Electromagnetic clutch; 40. Active end; 41. Driven end; 42. Processing surface; 18. Motor; 19. Power gear; 20. First slide rail; 21. Main bevel gear; 22. Slave bevel gear; 23. Main reduction gear; 24. Slave reduction gear; 25. Transmission belt; 26. Main pulley; 27. Slave pulley; 28. Limiting part; 31. Sliding hole; 32. Spring; 33. Connecting seat; 34. Guide strip; 35. Abutment seat; 37. Second slide rail; 38. Sliding groove; 39. Cap; 44. Elastic nut; 45. Bolt; 46. Diverter gear; 47. First shaft; 48. Second shaft; 49. Third shaft; 50. Perforation; 51. Slide groove. DETAILED DESCRIPTION

[0027] In the actual processing of films, in order to solve the problem of different thicknesses of the films to be processed, such as the different thicknesses of the films themselves or the different thicknesses caused by the films being attached to plates of various thicknesses, the flattening device needs to adjust the height of the flattening roller to adapt to films of different thicknesses. However, in existing flattening devices, the height of the flattening roller usually needs to be adjusted manually, resulting in a low degree of automation of the equipment and inconvenient operation.

[0028] The utility model is Figure 1 The position and orientation of the embodiment shown in FIG. 1 define the nouns of the relevant orientations such as “top” and “bottom”; secondly, Figure 1 The directions indicated by "X", "Y" and "Z" in the coordinate axes shown describe the sliding direction or rotation axis of the relevant components of this embodiment, "X" corresponds to the horizontal direction, "Y" corresponds to the longitudinal direction, and "Z" corresponds to the vertical direction; the above-mentioned directional nouns and related states are for making the description of this embodiment clearer and should not be understood as limitations on the technical features of this embodiment.

[0029] The following will be combined Figure 1-8 The utility model is further described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1-4As shown, a flattening device for film conveying includes a base 11, a flattening roller 12, a support seat 13, and a height adjustment component. The base 11 plays a supporting role. The base 11 is provided with a processing surface 42 for carrying the film being conveyed. The processing surface 42 is located on the upper side of the base 11. The flattening roller 12 is rotatably connected to the support seat 13 and is located on the upper side of the processing surface 42. The processing surface 42 plays the role of receiving the film. When the film is being processed, the film is located on the upper side of the processing surface 42 and the film moves on the processing surface 42. The moving film passes between the processing surface 42 and the flattening roller 12, and the flattening roller 12 abuts against the film, thereby applying vertical pressure and lateral pressure to the film. The base 11 is provided with a through hole 50, the support seat 13 is located on the inner side of the through hole 50, and the support seat 13 is vertically slidably connected to the through hole 50, the vertical direction is the Z direction, and the height adjustment component includes a screw rod 15, a height adjustment nut 16, an electromagnetic clutch 17, a motor 18, and a power gear 19. The motor 18 drives the power gear 19 to rotate, and the power gear 19 is connected to the active end 40 of the electromagnetic clutch 17. The power gear 19 drives the active end 40 of the electromagnetic clutch 17 to rotate, and the screw rod 15 is connected to the driven end 41 of the electromagnetic clutch 17. When the screw rod 15 rotates, the height adjustment nut 16 moves along the screw rod. 15 slides vertically, the height adjustment nut 16 is connected to the support base 13, the outer edge of the support base 13 and the hole width of the through hole 50 are adapted to be set, the support base 13 can only slide vertically along the through hole 50, and the through hole 50 limits the rotation of the support base 13, when the electromagnetic clutch 17 is engaged, the active end 40 of the electromagnetic clutch 17 is engaged with the driven end 41, the active end 40 and the driven end 41 rotate synchronously, the motor 18 drives the power gear 19 to rotate, and the rotating power gear 19 drives the screw rod 15 to rotate through the electromagnetic clutch 17, and the rotating screw rod 15 causes the height adjustment nut 16 to slide back and forth vertically along the screw rod 15, and the height adjustment nut that slides back and forth vertically 16 drives the support seat 13 to slide back and forth vertically, and the support seat 13 drives the flattening roller 12 to slide vertically, thereby adjusting the vertical distance between the flattening roller 12 and the processing surface 42 to adapt to films of different thicknesses. The flattening device is arranged on the way of conveying the formed film. The flattening device plays both a receiving and a flattening role. The processing surface 42 plays the role of receiving the film, and the height adjustment component adjusts the height of the flattening roller 12 to adapt to films of different heights while also playing the role of flattening the film. The flattened film is then wound up by the winding device, which improves the regularity of the rolled film and improves the flatness of the flattened film attached to the plate.

[0031] The electromagnetic clutch 17 switches between disconnection and engagement. When the electromagnetic clutch 17 is engaged, when the motor 18 drives the flattening roller 12 to the required height through the electromagnetic clutch 17, the electromagnetic clutch 17 is immediately disconnected, and the flattening roller 12 immediately stops vertical movement. If the electromagnetic clutch 17 is not provided, the flattening roller 12 can only stop vertical movement by stopping the motor 18. However, after the motor 18 loses power, it cannot stop immediately due to its inertia, so the electromagnetic clutch 17 is required to realize the instant stop function.

[0032] In order to further guide the vertical sliding of the support seat 13 and prevent the support seat 13 from rotating, the height adjustment assembly of this embodiment also includes a first slide rail 20. The first slide rail 20 is connected to the side of the support seat 13. The first slide rail 20 is vertically arranged. A slide groove 51 is opened on the side of the through hole 50. The slide groove 51 is adapted to the first slide rail 20. The first slide rail 20 slides vertically on the inner side of the slide groove 51. The support seat 13 slides vertically in the slide groove 51 through the first slide rail 20, thereby improving the stability of the support seat 13 when sliding vertically.

[0033] Since the motor 18 is installed in a flat position on the base 11, and the rotational power output by the motor 18 rotates around the X direction, while the screw rod 15 rotates around the Z direction, it is necessary to provide a steering conversion component between the motor 18 and the screw rod 15 to convert the steering. To solve the above problem, the height adjustment assembly of this embodiment also includes a main bevel gear 21 and a slave bevel gear 22. The main bevel gear 21 is transmission-connected to the power gear 19. The power gear 19 and the main bevel gear 21 both rotate around the X direction. The slave bevel gear 22 is fixedly connected to the lower end of the screw rod 15. The slave bevel gear 22 is coaxially connected to the screw rod 15 and rotates synchronously. The main bevel gear 21 and the slave bevel gear 22 are meshed for transmission, and the slave bevel gear 22 rotates around the Z direction. The rotating shaft of the main bevel gear 21 and the rotating shaft of the slave bevel gear 22 are arranged perpendicular to each other, thereby converting the transmission force rotating around the X direction into a transmission force rotating around the Z direction to drive the screw rod 15 to rotate around the Z direction.

[0034] Since the rotation speed of the motor 18 is higher than the rotation speed required by the screw rod 15, a deceleration component needs to be provided between the motor 18 and the screw rod 15 to decelerate the rotation speed of the motor 18. To solve the above problem, the height adjustment assembly of this embodiment also includes a main reduction gear 23 and a slave reduction gear 24. The number of teeth of the main reduction gear 23 is greater than the number of teeth of the slave reduction gear 24. The main reduction gear 23, the slave reduction gear 24, and the power gear 19 all rotate around the X direction. The main reduction gear 23 is connected to the power gear 19, and the slave reduction gear 24 is connected to the screw rod 15, thereby reducing the rotation speed of the motor 18 to adapt to the rotation requirements of the screw rod 15.

[0035] There are two groups of flattening rollers 12, which are arranged at intervals on the processing surface 42, and the rotation axes of the two groups of flattening rollers 12 are arranged in parallel. The rotation axes of the two groups of flattening rollers 12 are both in the X direction. The two groups of flattening rollers 12 are connected to a height adjustment component, which controls the engagement and disconnection of the electromagnetic clutch 17 through the height adjustment component. The height of the two groups of flattening rollers 12 can be adjusted individually.

[0036] Since the two sets of flattening rollers 12 need to be spaced apart along the Y direction, and the size of the components of the height adjustment assembly and the transmission distance are small, they cannot meet the distance requirements for the flattening rollers 12 to be spaced apart. To solve the above problem, the height adjustment assembly of this embodiment also includes a transmission belt 25, a main pulley 26, and a slave pulley 27. The transmission belt 25 is longitudinally sleeved between the main pulley 26 and the slave pulley 27. The transmission belt 25 extends along the Y direction, and the main pulley 26 and the slave pulley 27 both rotate around the X direction. The main pulley 26 is connected to the power gear 19 for transmission, and the slave pulley 27 is connected to the screw rod 15 for transmission. Through the setting of the transmission belt 25, the distance of the height adjustment assembly in the Y direction is increased to adapt to the requirement of spacing the flattening rollers 12 along the Y direction.

[0037] In order to further improve the stability of the vertical sliding of the support seat 13, the protrusion of the processing surface 42 of this embodiment is provided with a limiting portion 28. The limiting portion 28 is located on both sides of the support seat 13 and is tightly connected to the support seat 13. The support seat 13 is slidably connected to the limiting portion 28, which increases the contact area between the support seat 13 and the base 11, increases the area of ​​the support seat 13 abutting against the base 11, and the slide groove 51 extends to the limiting portion 28, thereby improving the stability of the vertical movement of the support seat 13.

[0038] The height adjustment assembly also includes a diverter gear 46, a first shaft 47, a second shaft 48, and a third shaft 49. Both ends of the first shaft 47 are rotatably connected to the base 11. The diverter gear 46, the electromagnetic clutch 17, and the main reduction gear 23 are all coaxially connected to the first shaft 47. When the electromagnetic clutch 17 is closed, the first shaft 47 can drive the diverter gear 46 and the main reduction gear 23 to rotate coaxially and synchronously. Both ends of the second shaft 48 are coaxially rotatably connected to the base 11. The slave reduction gear 24 and the main pulley 26 are both connected to the second shaft 48. The second shaft 48 can drive the slave reduction gear 24 and the main pulley 26 to rotate coaxially and synchronously. Both ends of the third shaft 49 are rotatably connected to the base 11. The slave pulley 27 and the main bevel gear 21 are both connected to the third shaft 49. The third shaft 49 can drive the slave pulley 27 and the main bevel gear 21 to rotate coaxially and synchronously.

[0039] The transmission principle of this embodiment is as follows: when the electromagnetic clutch 17 is closed, the motor 18 drives the power gear 19 to rotate, the rotating power gear 19 drives the diverter gear 46 to rotate, the rotating diverter gear 46 rotates coaxially with the first shaft 47, thereby driving the electromagnetic clutch 17 and the main reduction gear 23 to rotate, the main reduction gear 23 engages with the slave reduction gear 24, so that the rotating main reduction gear 23 drives the slave reduction gear 24 to rotate, and the rotating slave reduction gear 24 drives the second shaft 48 to rotate coaxially, and the rotating first shaft 47 rotates. The second shaft 48 drives the main pulley 26 to rotate, and the rotating main pulley 26 drives the slave pulley 27 to rotate through the transmission belt 25. The rotating slave pulley 27 drives the third shaft 49 to rotate coaxially. The rotating third shaft 49 drives the main bevel gear 21 to rotate. The rotating main bevel gear 21 drives the slave bevel gear 22 to rotate, thereby driving the screw rod 15 to rotate. The rotating screw rod 15 causes the height adjustment nut 16 to slide back and forth vertically, thereby realizing the adjustment of the height of the flattening roller 12, that is, realizing the adjustment of the distance between the flattening roller 12 and the processing surface 42.

[0040] It should be noted that Figure 3 、 4 Two sets of height adjustment components are shown in each figure. In order to more clearly show the shape, position and transmission relationship of the height adjustment components, each set of figures only marks one set of height adjustment components.

[0041] In order to solve the problem that the existing flattening device cannot adjust the pressure of the flattening roller 12 on the film, the present invention provides the following solution.

[0042] Reference Figure 5-8As shown, in order to solve the above problems, the present embodiment also includes an elastic force adjustment component, which includes a spring 32, a connecting seat 33, an abutting seat 35, and a positioning mechanism. The support seat 13 is provided with a sliding hole 31, and the axial direction of the sliding hole 31 is in the X direction. The sliding hole 31 is arranged through the support seat 13 and through the two side surfaces of the support seat 13. The connecting seat 33 is connected to the rotating shaft of the flattening roller 12, and the flattening roller 12 can rotate relative to the connecting seat 33. The connecting seat 33 is vertically slidably connected to the sliding hole 31, so that the flattening roller 12 can slide vertically, that is, the flattening roller 12 can rotate and slide vertically. The abutting seat 35 is also vertically slidably connected to the sliding hole 31. The abutting seat 35 is located on the upper side of the connecting seat 33. The spring 32 is a compression type. The spring 32 is connected between the connecting seat 33 and the abutting seat 35. The positioning mechanism is used to adjust the abutment The distance between the seat 35 and the connecting seat 33 is used to adjust the elastic force of the spring 32. Since the position of the support seat 13 is fixed, when it is necessary to adjust the pressure of the flattening roller 12 on the film, the positioning mechanism drives the abutment seat 35, and the abutment seat 35 slides vertically relative to the support seat 13. The support seat 13 slides downward, compresses the spring 32, and the elastic force of the spring 32 increases, and the elastic force of the connecting seat 33 also increases, thereby increasing the pressure of the flattening roller 12 on the film. The support seat 13 slides upward, stretches the spring 32, and the elastic force of the spring 32 decreases, and the elastic force of the connecting seat 33 also decreases, thereby reducing the pressure of the flattening roller 12 on the film. In the above manner, the pressure adjustment of the flattening roller 12 on the film is achieved. The film being transported passes through the processing surface 42, and the elastic force adjustment component adjusts the pressure of the flattening roller 12 on the film to adapt to the processing requirements of different films.

[0043] The positioning mechanism includes a bolt 45 and an elastic nut 44. The top surface of the abutment seat 35 is rotatably connected to the bolt 45. The bolt 45 can rotate relative to the abutment seat 35 around the Z direction. The bolt 45 is set in the Z direction. A screw hole is provided on the top surface of the sliding hole 31. The axial direction of the screw hole is in the Z direction. The screw hole passes through the top surface of the support seat 13 to the sliding hole 31. The bolt 45 passes through the screw hole. The bolt 45 is threadedly connected to the screw hole. The elastic nut 44 is set in two groups. The bolt 45 and one of its elastic nuts 44 are connected on the upper side of the top surface of the support seat 13. The inner top surface of the sliding hole 31 is connected to the other elastic nut 44. The two groups of elastic nuts 44 are threadedly connected to the bolt 45. The threads of the screw hole and the elastic nut 44 are used to The abutment force provided by the abutment seat 35 enables the abutment seat 35 to apply pressure to the spring 32, loosen the elastic nut 44, rotate the bolt 45 to slide, and the rotating bolt 45 drives the abutment seat 35 to slide vertically relative to the support seat 13 through the thread of the screw hole. The support seat 13 slides downward, compresses the spring 32, and the elastic force of the spring 32 increases, and the elastic force of the connecting seat 33 also increases, thereby increasing the pressure of the flattening roller 12 on the film, and the support seat 13 slides upward, stretching the spring 32, reducing the elastic force of the spring 32, and reducing the elastic force of the connecting seat 33, thereby reducing the pressure of the flattening roller 12 on the film. In the above manner, the pressure adjustment of the flattening roller 12 on the film is achieved.

[0044] The positioning mechanism includes but is not limited to the above-mentioned structure. The positioning mechanism can be any component that plays a positioning role, which will not be described in detail here.

[0045] The cam 33 is engaged with the spring 32 and the spring 32 is engaged with the spring 32. The cam 33 is engaged with the spring 32 and the spring 32 is engaged with the spring 32.

[0046] In order to improve the stability of the vertical sliding of the connecting seat 33 and the abutting seat 35 in the sliding hole 31, the elastic adjustment component of the present invention includes a second slide rail 37, the second slide rail 37 is vertically connected to the inner side of the sliding hole 31, the abutting seat 35 is provided with a sliding groove 38, and the connecting seat 33 is also provided with a sliding groove 38. The sliding groove 38 is slidably connected to the second slide rail 37, and the sliding groove 38 is adapted to the second slide rail 37. The connecting seat 33 and the abutting seat 35 both slide back and forth vertically along the second slide rail 37 through their sliding grooves 38. The second slide rail 37 guides the vertical sliding of the connecting seat 33 and the abutting seat 35, thereby improving the stability of the vertical sliding of the connecting seat 33 and the abutting seat 35 in the sliding hole 31.

[0047] The spring 32 has an upward abutting force on the abutment seat 35. If the spring 32 applies an abutting force to the abutment seat 35, it will drive the abutment seat 35 to move relative to the guide bar 34, causing the guide hole of the abutment seat 35 to disengage from the guide bar 34, and also causing the elastic force of the elastic adjustment component to fail. To solve the above problem, the top surface of the guide bar 34 of the utility model is connected to the cap portion 39, and the radius of the cap portion 39 is larger than the radius of the guide bar 34. The spring 32 applies an abutting force on the abutment seat 35 and drives the abutment seat 35. When the abutment seat 35 abuts against the cap portion 39, the abutment seat 35 stops sliding upward, that is, the sliding range of the abutment seat 35 in the guide bar 34 is limited to between the lower side of the cap portion 39 and the upper end of the spring 32, thereby reducing the risk of the abutment seat 35 and the guide bar 34 being separated.

[0048] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the scope of protection of the utility model. Any modifications made according to the spirit of the main technical solution of the utility model should be included in the scope of protection of the utility model.

Claims

1. A flattening device for film conveying, characterized in that: The invention comprises a base (11), a flattening roller (12), a support seat (13), and a height adjustment component. The base (11) is provided with a processing surface (42) for carrying a film in transport, and the processing surface (42) is located on the upper side of the base (11). The flattening roller (12) is rotatably connected to the support seat (13) and is located on the upper side of the processing surface (42). The processing surface (42) of the base (11) is provided with a through hole (50). The support seat (13) moves vertically inside the through hole (50). The height adjustment component comprises a screw (15), a height adjustment nut (16), an electromagnetic clutch (17), a rotating power The gear (19) is connected to the driving end (40) of the electromagnetic clutch (17) by transmission, and the screw rod (15) is connected to the driven end (41) of the electromagnetic clutch (17) by transmission, and the height adjustment nut (16) is sleeved on the screw rod (15) and moves vertically along the screw rod (15), and the height adjustment nut (16) is connected to the support seat (13). When the driving end (40) is engaged with the driven end (41), the power gear (19) drives the screw rod (15) to rotate to drive the height adjustment nut (16), the support seat (13), and the flattening roller (12) to slide vertically.

2. A film conveying flattening device according to claim 1, characterized in that: The height adjustment assembly further comprises a main bevel gear (21) and a slave bevel gear (22), wherein the main bevel gear (21) is transmission-connected to the power gear (19), and the slave bevel gear (22) is fixedly connected to the lower end of the screw rod (15), and the main bevel gear (21) and the slave bevel gear (22) are meshed and transmission-connected.

3. The flattening device for film conveying according to claim 1, characterized in that: The height adjustment assembly further includes a main reduction gear (23) and a secondary reduction gear (24), wherein the number of teeth of the secondary reduction gear (24) is greater than the number of teeth of the main reduction gear (23), the main reduction gear (23) is transmission-connected to the power gear (19), and the secondary reduction gear (24) is transmission-connected to the screw rod (15).

4. The flattening device for film conveying according to claim 1, characterized in that: The height adjustment assembly further comprises a transmission belt (25), a main pulley (26), and a slave pulley (27), wherein the main pulley (26) is in transmission connection with the power gear (19), the slave pulley (27) is in transmission connection with the screw rod (15), and the transmission belt (25) is longitudinally sleeved between the main pulley (26) and the slave pulley (27).

5. The flattening device for film conveying according to claim 1, characterized in that: The height adjustment assembly further comprises a first slide rail (20), the first slide rail (20) being vertically connected to the side of the support seat (13), a slide groove (51) being provided on the side of the through hole (50), and the first slide rail (20) being vertically slidable on the inner side of the slide groove (51).

6. The flattening device for film conveying according to claim 1, characterized in that: The invention also includes an elastic force adjustment component, which includes a spring (32), a connecting seat (33), an abutting seat (35), and a positioning mechanism. The support seat (13) is provided with a sliding hole (31) extending laterally. The connecting seat (33) is connected to the rotating shaft of the flattening roller (12). The connecting seat (33) is vertically slidably connected to the sliding hole (31). The abutting seat (35) is located on the upper side of the connecting seat (33). The positioning mechanism is used to adjust the distance between the abutting seat (35) and the connecting seat (33) to adjust the elastic force of the spring (32).

7. A film conveying flattening device according to claim 6, characterized in that: The positioning mechanism includes a bolt (45), the top surface of the abutment seat (35) is rotatably connected to the bolt (45), the top surface of the support seat (13) is provided with a screw hole, the screw hole extends through the sliding hole (31), the bolt (45) passes through the screw hole and is threadedly connected to the screw hole, and the spring (32) is connected between the connecting seat (33) and the abutment seat (35).

8. The flattening device for film conveying according to claim 6, characterized in that: The top surface of the connecting seat (33) is connected to a guide bar (34), the abutting seat (35) is provided with a guide hole, the abutting seat (35) is slidably connected to the guide bar (34) through the guide hole, and the spring (32) is sleeved on the guide bar (34) and located between the connecting seat (33) and the abutting seat (35).

9. The flattening device for film conveying according to claim 8, characterized in that: The top surface of the guide bar (34) is connected to a cap portion (39), the cap portion (39) is in a round bar shape and is coaxially arranged with the guide bar (34), and the radius of the cap portion (39) is greater than the radius of the guide bar (34).

10. The flattening device for film conveying according to claim 6, characterized in that: The elastic force adjustment component includes a second slide rail (37), the second slide rail (37) is vertically connected to the inner side surface of the sliding hole (31), the abutment seat (35) is provided with a sliding groove (38) and / or the connecting seat (33) is provided with a sliding groove (38), and the sliding groove (38) is vertically slidably connected to the second slide rail (37).

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