A film production slitting device

Abstract

The application discloses a film production slitting device, which is applied to the technical field of film slitting devices and has the technical scheme as follows: an upper base and a lower base are arranged, a feeding roller, a plurality of guide rollers, a tensioning roller and a receiving roller are arranged on the lower base along the conveying direction of the film, a plurality of supporting assemblies for supporting the film are fixedly arranged on the lower base, a cutting knife for cutting the film is fixedly arranged on the supporting assembly based on a lifting cylinder, a plurality of ballast assemblies are fixedly arranged on the upper base along the vertical direction based on a lifting assembly, a smoothing assembly for resisting the tensioning force of the film along the width direction is fixedly arranged at the ends of the tangent line of the ballast assembly, and a heating assembly is fixedly arranged at the starting end of the supporting assembly along the conveying direction of the film on the lower base, so that the film production slitting device has the technical effects that the structure is simple, the cut edge is smooth, and the smooth cutting requirement under the film conveying state can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of film slitting device, in particular to a film production slitting device. BACKGROUND

[0002] Film is a thin and soft transparent sheet made of plastic, adhesive, rubber or other materials. Currently, film is widely used in electronic and electrical appliances, machinery, printing and other industries. In the film processing process, the whole roll of film often needs to be slitted into a certain width of film roll. In order to ensure the quality of film slitting, it is necessary to ensure that the film is kept tight during conveying. However, since the film is subjected to tension in the length direction and width direction at the same time, the tension in the width direction of the film disappears instantaneously when the film is cut by the cutting knife, which may cause wrinkles at the cut edge of the film and affect the film slitting effect.

[0003] At present, the Chinese utility model with publication number CN210682712U discloses a film cutting device, which comprises a bottom plate, a base is bolted to the left side of the top of the bottom plate, a film roll roller is rotatably connected to the inner side of the base, two first gantry frames are fixedly connected to the right side of the top of the bottom plate, a cutting mechanism and a supporting mechanism are respectively arranged between the two first gantry frames, and the cutting mechanism is used for cutting operation.

[0004] The existing utility model draws out the film on the surface of the film roll roller and sequentially passes through the first gantry frame and the second gantry frame. When the length is determined and cutting operation is performed, the film is fixed by the first fixing mechanism, the second fixing mechanism and the elastic mechanism. At the same time, heating wires and heat conducting plates are arranged in the bearing mechanism to support the lower surface of the film and cooperate with the cutting knife to cut the film flat and fast, thereby avoiding the cut edge wrinkles. However, this prior art can only achieve flat cutting when the film is in a stationary state, and cannot meet the slitting requirements of the film in a fast conveying state, so it needs to be improved. SUMMARY

[0005] The present application aims to provide a film production slitting device, which has the advantages of simple structure, flat cutting edge and the ability to meet the flat cutting requirements of the film in a conveying state.

[0006] The technical problem of the present application is solved by the following technical scheme: a film production slitting device, comprising an upper base and a lower base, wherein the lower base is provided with a feeding roller, a plurality of guide rollers, a tensioning roller and a receiving roller along the conveying direction of the film; a plurality of support assemblies for supporting the film are fixedly arranged on the lower base, and a cutting knife for cutting the film is fixedly arranged on the support assembly based on a lifting cylinder; a plurality of ballast assemblies are fixedly arranged on the upper base along the vertical direction based on a lifting assembly; a smoothing assembly for resisting the tensioning force of the film along the width direction is fixedly arranged at both ends of the tangent line of the ballast assembly; and a heating assembly is fixedly arranged at the starting end of the support assembly along the conveying direction of the film.

[0007] The present application further provides that the support assembly comprises a support plate fixedly connected to the lower base along the horizontal direction and a plurality of air outlets uniformly arranged on the support plate, wherein the air outlets are flared.

[0008] The present application further provides that the ballast assembly comprises a ballast seat fixedly connected to the lifting assembly along the direction parallel to the support assembly and a ballast plate slidably connected to the ballast seat based on a plurality of sliding rods, wherein the sliding rods are connected to the ballast seat and the ballast plate through a compression spring, a pressure sensor is fixedly arranged on the ballast seat, one end of the compression spring is fixedly connected to the ballast plate, and the other end of the compression spring abuts against the pressure sensor.

[0009] The present application further provides that the lifting assembly uses a telescopic electric cylinder.

[0010] The present application further provides that the smoothing assembly comprises a first smoothing plate symmetrically rotatably connected to the ballast plate along the tangent line for smoothing the uncut film located at the front end of the cutting knife along the conveying direction and a second smoothing plate staggered arranged at both ends of the tangent line for smoothing the cut film located at the rear end of the cutting knife along the conveying direction, a smoothing motor is fixedly arranged on the ballast plate for driving the first smoothing plate to rotate, and the first smoothing plate and the second smoothing plate are synchronously driven based on a transmission assembly.

[0011] The present application further provides that the first smoothing plate and the second smoothing plate are fixedly attached with a smoothing film on the bottom surface for abutting against the surface of the film, and the bottom surface of the smoothing film is flush with the bottom surface of the ballast plate.

[0012] The application is further provided with: the first and second troweling plates are of the same shape and are proportionally sized, each including a rotating part and arc-shaped troweling parts fixedly arranged on the rotating part along the circumferential direction, the arc-shaped troweling parts coincide with the rotating part's axis, the arc-shaped angle of each arc-shaped troweling part is no more than 15°, the arc-shaped troweling part of the first troweling plate is tangent to the tangent line, and the arc-shaped edge of the arc-shaped troweling part of the second troweling plate is arranged beyond the tangent line.

[0013] The application is further provided with: the transmission assembly includes a first transmission gear coaxially fixedly connected to the first troweling plate and a second transmission gear coaxially fixedly connected to the second troweling plate, and the ballast plate is adapted to be provided with a synchronous transmission gear between the first and second transmission gears to ensure synchronous rotation of the first and second troweling plates.

[0014] The application is further provided with: the heating assembly includes a heating seat fixedly connected to the support assembly and a heating groove opened in the heating seat along the tangent direction, a heating wire is fixedly arranged in the heating groove, a heat-conducting plate is fixedly arranged in the heating groove, and a heating cotton felt for contacting the film to heat the film is fixedly arranged on the heat-conducting plate.

[0015] In summary, the application has the following advantages:

[0016] 1. The support assembly is arranged on the lower base, and the ballast assembly is arranged on the upper base, the support assembly is arranged with a plurality of air outlets on the support plate to form an air film between the film and the support plate to reduce the friction between the film and the support plate, facilitate the troweling assembly to trowel, and the ballast assembly is arranged with a ballast plate on the ballast seat based on the sliding rod, a compression spring is arranged on the sliding rod, and a pressure sensor is arranged, the ballast seat is driven downward by the lifting assembly to make the ballast plate load the film on the support plate, at this time, the compression spring is compressed, the pressure sensor detects the pressure data, then the ballast seat is slowly lifted by the lifting assembly until the data of the pressure sensor is reduced to 0, at this time, the film can be conveyed between the ballast plate and the support seat to reduce the influence of the support assembly and the ballast assembly on the film conveying, facilitate the troweling assembly to trowel the film, and the heating assembly is arranged at the starting end of the support assembly along the film conveying direction, the film is heated in advance to reduce the tension in the width direction of the film and reduce the possibility of cut wrinkles.

[0017] 2. The leveling assembly is provided with the first leveling plate and the second leveling plate which are synchronously driven, the leveling film which is attached to the surface of the film is adhered to the bottom surface of the first leveling plate and the second leveling plate, the film can be leveled more conveniently, the film can be prevented from being wrinkled during the leveling process so as to affect the film cutting, the arc-shaped leveling part of the first leveling plate is tangent to the tangent line, the arc-shaped edge of the arc-shaped leveling part of the second leveling plate is arranged beyond the tangent line, during the cutting process of the cutting knife, the uncut part at the front end of the film in the conveying direction is subjected to the tension force at both ends in the width direction, the arc-shaped leveling part of the first leveling plate is tangent to the tangent line so as to apply a friction force to the film in the direction of the tangent line, the friction force is decomposed into a component force in the width direction and opposite to the tension force at the end where the first leveling plate is located, the tension force at the end is offset, the component force is inclined downward to ensure that the film is tensioned and assists the cutting knife to cut, so as to reduce the possibility of the cut wrinkle of the film when the film is cut, after the film is cut, the arc-shaped edge of the arc-shaped leveling part of the second leveling plate is arranged beyond the tangent line, the friction force between the second leveling plate and the film is used to level the cut film in the direction of the tangent line, so as to ensure the flatness of the tangent line at both ends, ensure the flatness of the film cutting edge, and meet the leveling and cutting requirements of the film conveying state.

[0018] 3. The first leveling plate and the second leveling plate are synchronously driven based on the transmission assembly, the structural complexity is reduced, and the film can be prevented from being wrinkled due to the asynchronous movement between the first leveling plate and the second leveling plate, so as to affect the splitting effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the structural sectional view of the whole of the embodiment;

[0020] Figure 2 is the A part of Figure 1 is the A part of

[0021] Figure 3 is the B part of Figure 1 is the B part of

[0022] Figure 4 is the structural schematic view of the leveling assembly of the embodiment.

[0023] Reference signs: 1, upper base; 2, lower base; 21, feeding roller; 22, guide roller; 23, tensioning roller; 24, collecting roller; 3, supporting assembly; 31, lifting cylinder; 32, cutting knife; 33, supporting plate; 34, air outlet hole; 4, lifting assembly; 5, ballast assembly; 51, ballast seat; 52, sliding rod; 53, ballast plate; 54, compression spring; 55, pressure sensor; 6, smoothing assembly; 61, first smoothing plate; 611, rotating part; 612, arc-shaped smoothing part; 62, second smoothing plate; 63, smoothing motor; 64, transmission assembly; 641, first transmission gear; 642, second transmission gear; 643, synchronous transmission gear; 65, smoothing film; 7, heating assembly; 71, heating seat; 72, heating groove; 73, heating wire; 74, heat-conducting plate; 75, heating cotton felt; 8, film. DETAILED DESCRIPTION

[0024] The application will be further described in detail below with reference to the accompanying drawings.

[0025] Embodiment:

[0026] Reference Figures 1 to 4 A film production slitting device, comprising a fixedly arranged upper base 1 and a lower base 2, a feeding roller 21, a plurality of guide rollers 22, a tensioning roller 23 and a collecting roller 24 are arranged on the lower base 2 along the conveying direction of the film 8, the film 8 is output from the feeding roller 21 and then passes through the guide rollers 22 and the tensioning roller 23 to be cut and then enters the collecting roller 24 to realize collection, a plurality of supporting assemblies 3 for supporting the film 8 are fixedly arranged on the lower base 2, a cutting knife 32 for cutting the film 8 is fixedly arranged on the supporting assembly 3 based on a lifting cylinder 31, the supporting assembly 3 is used to realize the support of the bottom surface of the film 8 so as to ensure that the film 8 can be stably conveyed, the film 8 is cut by the cutting knife 32, and the cutout of the cutting knife 32 is a cutting line, a plurality of ballast assemblies 5 are fixedly arranged on the upper base 1 along the vertical direction based on a lifting assembly 4, a smoothing assembly 6 for resisting the tensioning force of the film 8 along the width direction is fixedly arranged on the ballast assembly 5 at both ends of the cutting line, a heating assembly 7 is fixedly arranged on the lower base 2 at the starting end of the supporting assembly 3 along the conveying direction of the film 8, the heating assembly 7 reduces the tensioning force of the film 8 along the width direction by preheating the film 8, and reduces the possibility of cutout wrinkles. In this embodiment, a plurality of cutting knives 32 and ballast assemblies 5 are arranged on the supporting assembly 3 and the upper base 1 respectively, and the spacing of adjacent cutting knives 32 and ballast assemblies 5 can be adjusted according to requirements, and the spacing adjustment structure is well known to those skilled in the art, which will not be described here.

[0027] Reference Figure 1 And Figure 2Specifically, the support assembly 3 comprises a support plate 33 fixedly connected to the lower base 2 along a horizontal direction and a plurality of air outlet holes 34 evenly arranged on the support plate 33, the air outlet holes 34 are flared, and an air film is formed between the film 8 and the support plate 33 to reduce the friction between the film 8 and the support plate 33, thereby facilitating the leveling of the leveling assembly 6.

[0028] With reference to Figure 1 and Figure 3 Specifically, the ballast assembly 5 comprises a ballast seat 51 fixedly connected to the lifting assembly 4 along a direction parallel to the support assembly 3 and a ballast plate 53 slidably connected to the ballast seat 51 based on a plurality of sliding rods 52, the sliding rods 52 are connected to the ballast seat 51 and the ballast plate 53 in a sleeved manner and are provided with compression springs 54, the ballast seat 51 is fixedly provided with a pressure sensor 55, one end of the compression spring 54 is fixedly connected to the ballast plate 53, and the other end abuts against the pressure sensor 55, when the film 8 passes through the support assembly 3 and the ballast assembly 5, the position of the ballast assembly 5 needs to be adjusted, the ballast plate 53 is used to ballast the film 8 on the support plate 33 by driving the ballast seat 51 to move downward by the lifting assembly 4, at this time, the compression spring 54 is compressed, the pressure sensor 55 detects the pressure data, then the ballast seat 51 is slowly raised by the lifting assembly 4 until the data of the pressure sensor 55 decreases to 0, at this time, the film 8 can be conveyed between the ballast plate 53 and the support seat, thereby reducing the influence of the support assembly 3 and the ballast assembly 5 on the film 8 conveying, and facilitating the film 8 leveling of the leveling assembly 6. In this embodiment, the lifting assembly 4 uses a telescopic electric cylinder, thereby facilitating the accurate control of the distance between the ballast plate 53 and the support plate 33, which is just equal to the thickness of the film 8, and a higher precision screw lifting assembly 4 can also be used to realize the lifting of the ballast assembly 5.

[0029] With reference to Figure 3 and Figure 4 Specifically, the leveling assembly 6 comprises a first leveling plate 61 symmetrically connected to the ballast plate 53 along a tangent line for leveling the uncut film 8 located in front of the cutting knife 32 along the conveying direction, and a second leveling plate 62 staggered arranged at both ends of the tangent line for leveling the cut film 8 located behind the cutting knife 32 along the conveying direction, the ballast plate 53 is fixedly provided with a leveling motor 63 for driving the first leveling plate 61 to rotate, the first leveling plate 61 and the second leveling plate 62 are synchronously driven based on a transmission assembly 64, the bottom surface of the first leveling plate 61 and the second leveling plate 62 is fixedly attached with a leveling film 65 which is attached with the surface of the film 8, and the bottom surface of the leveling film 65 is flush with the bottom surface of the ballast plate 53, by adhering the leveling film 65 which is attached with the surface of the film 8 to the bottom surface of the first leveling plate 61 and the second leveling plate 62, it is more convenient to level the film 8, and at the same time, it can also avoid the film 8 from being wrinkled during the leveling process, thereby affecting the cutting of the film 8.

[0030] Reference Figure 3 And Figure 4 , specifically, the first and second smoothing plates 61 and 62 are the same shape and are proportionally sized, the two first smoothing plates 61 are equal in size, the two second smoothing plates 62 are equal in size, the first and second smoothing plates 61 and 62 are arranged similarly, and each includes a rotating portion 611 and an arc-shaped smoothing portion 612 uniformly fixed on the rotating portion 611 along the circumferential direction, the arc-shaped smoothing portion 612 coincides with the axis of the rotating portion 611, the arc-shaped angle of each arc-shaped smoothing portion 612 is not greater than 15°, the arc-shaped smoothing portion 612 of the first smoothing plate 61 is tangent to the tangent line, and the arc-shaped edge of the arc-shaped smoothing portion 612 of the second smoothing plate 62 exceeds the tangent line, the arc-shaped smoothing portion 612 of the first smoothing plate 61 is tangent to the tangent line, and the arc-shaped edge of the arc-shaped smoothing portion 612 of the second smoothing plate 62 exceeds the tangent line, during the cutting process of the cutting knife 32, the uncut part of the film 8 at the front end in the conveying direction is subjected to the tension force at both ends in the width direction, the arc-shaped smoothing portion 612 of the first smoothing plate 61 is tangent to the tangent line to apply a friction force to the film 8 in the direction of the tangent line, and the friction force is decomposed into a component force in the width direction opposite to the tension force at one end of the first smoothing plate 61 to offset the tension force at the end, and the component force is also decomposed into an obliquely downward component force to ensure that the film 8 is under tension while assisting the cutting knife 32 to cut, thereby reducing the possibility of creases in the cut film 8, and after the film 8 is cut, the arc-shaped edge of the arc-shaped smoothing portion 612 of the second smoothing plate 62 exceeds the tangent line, and the friction between the second smoothing plate 62 and the film 8 flattens the cut film 8 in the direction of the tangent line to ensure the flatness of the tangent line at both ends and the flatness of the cut film 8, which can meet the requirements of flat cutting of the film 8 under the conveying state.

[0031] Reference Figure 4 , specifically, the transmission assembly 64 includes a first transmission gear 641 coaxially fixed to the first smoothing plate 61 and a second transmission gear 642 coaxially fixed to the second smoothing plate 62, the synchronous transmission gear 643 is arranged between the first and second transmission gears 641 and 642 to ensure synchronous rotation of the first and second smoothing plates 61 and 62, the driving motor drives the first smoothing plate 61 to rotate, the first transmission gear 641 rotates, the first and second transmission gears 641 and 642 are connected by the synchronous transmission gear 643, the second transmission gear 642 drives the second smoothing plate 62 to rotate, the two second smoothing plates 62 are arranged in front of and behind each other, the first and second transmission gears 641 and 642 and the synchronous transmission gear 643 of the two transmission assemblies 64 are not equal in size to realize synchronous rotation of the first and second smoothing plates 61 and 62.

[0032] Reference Figure 1 And Figure 2 Specifically, the heating assembly 7 comprises a heating seat 71 fixedly connected to the support assembly 3 and a heating groove 72 opened in the tangential direction on the heating seat 71, a heating wire 73 is fixedly arranged in the heating groove 72, a heat-conducting plate 74 is fixedly arranged in the heating groove 72, and a heating cotton felt 75 for contacting the film 8 to heat the film 8 is fixedly arranged on the heat-conducting plate 74. By arranging the heating cotton felt 75, the heat received by the film 8 is reduced, and the shrinkage of the film 8 caused by excessive temperature is avoided, thereby affecting the slitting process.

[0033] Brief description of the use process: the film 8 is output from the feeding roller 21, passes through the guide roller 22 and the tensioning roller 23 in turn, is cut and then enters the receiving roller 24 to realize material receiving. In the film 8 conveying process, the film 8 is cut by the cutting knife 32, the weight plate 53 presses the film 8 on the support plate 33 by the downward movement of the weight seat 51 driven by the lifting assembly 4, at this time the compression spring 54 is compressed, the pressure sensor 55 detects the pressure data, then the weight seat 51 slowly rises driven by the lifting assembly 4 until the data of the pressure sensor 55 decreases to 0, at this time the film 8 can be conveyed between the weight plate 53 and the support seat to complete the adjustment of the weight assembly 5. In the film 8 conveying process, the tangential direction of the film 8 is flattened by the first flattening plate 61 and the second flattening plate 62 to ensure the flatness of the tangential direction and avoid the wrinkles of the cut.

[0034] The specific embodiment is only an explanation of the present application, which is not a limitation of the present application. Those skilled in the art can make creative contributions to modify the embodiment according to the needs after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A film production slitting apparatus, comprising an upper base (1) and a lower base (2), wherein the lower base (2) is provided with a feeding roller (21), a plurality of guide rollers (22), a tensioning roller (23), and a receiving roller (24) along the conveying direction of the film (8); characterized in that, The lower base (2) is fixedly provided with a plurality of support components (3) for supporting the film (8). The support components (3) are fixedly provided with a cutting blade (32) for cutting the film (8) based on a lifting cylinder (31). The upper base (1) is fixedly provided with a plurality of ballast components (5) based on a lifting component (4) along the vertical direction. The ballast components (5) are fixedly provided with a smoothing component (6) at both ends of the tangent to resist the tension of the film (8) along the width direction. The lower base (2) is fixedly provided with a heating component (7) at the starting end of the support components (3) along the conveying direction of the film (8). The ballast assembly (5) includes a ballast seat (51) fixedly connected to the lifting assembly (4) along a direction parallel to the support assembly (3) and a ballast plate (53) slidably connected to the ballast seat (51) based on a plurality of sliding rods (52). A compression spring (54) is sleeved between the ballast seat (51) and the ballast plate (53) on the sliding rods (52). A pressure sensor (55) is fixedly provided on the ballast seat (51). One end of the compression spring (54) is fixedly connected to the ballast plate (53), and the other end abuts against the pressure sensor (55). The smoothing assembly (6) includes a first smoothing plate (61) symmetrically rotatably connected to the ballast plate (53) along the tangent and used to smooth the uncut film (8) located at the front end of the cutting blade (32) along the conveying direction, and a second smoothing plate (62) staggered at both ends of the tangent and used to smooth the cut film (8) located at the rear end of the cutting blade (32) along the conveying direction. A smoothing motor (63) for driving the first smoothing plate (61) to rotate is fixed on the ballast plate (53). The first smoothing plate (61) and the second smoothing plate (62) are synchronously driven by a transmission assembly (64). The first trowel plate (61) and the second trowel plate (62) are identical in shape and proportional in size. Both include a rotating part (611) and an arc-shaped smoothing part (612) uniformly fixed on the rotating part (611) along the circumferential direction. The arc-shaped smoothing part (612) coincides with the axis of the rotating part (611). The arc angle of each arc-shaped smoothing part (612) is no greater than 15°. The arc-shaped smoothing part (612) of the first trowel plate (61) is tangent to the tangent line. The arc edge of the arc-shaped smoothing part (612) of the second trowel plate (62) extends beyond the tangent line.

2. The film production slitting apparatus according to claim 1, characterized in that, The support assembly (3) includes a support plate (33) that is fixedly connected to the lower base (2) along the horizontal direction and a number of air vents (34) that are evenly arranged on the support plate (33), and the air vents (34) are flared.

3. The film production slitting apparatus according to claim 1, characterized in that, The lifting assembly (4) uses a telescopic electric cylinder.

4. A film production slitting apparatus according to claim 1, characterized in that, The bottom surfaces of the first smearing plate (61) and the second smearing plate (62) are fixedly attached with a smearing film (65) that is in contact with the surface of the film (8), and the bottom surface of the smearing film (65) is flush with the bottom surface of the ballast plate (53).

5. A film production slitting apparatus according to claim 1, characterized in that, The transmission assembly (64) includes a first transmission gear (641) coaxially fixedly connected to the first trowel plate (61) and a second transmission gear (642) coaxially fixedly connected to the second trowel plate (62). The ballast plate (53) is adapted to have a synchronous transmission gear (643) between the first transmission gear (641) and the second transmission gear (642) to ensure that the first trowel plate (61) and the second trowel plate (62) rotate synchronously and in the same direction.

6. A film production slitting apparatus according to claim 1, characterized in that, The heating assembly (7) includes a heating seat (71) fixedly connected to the support assembly (3) and a heating groove (72) opened along the tangential direction on the heating seat (71). A heating wire (73) is fixedly provided in the heating groove (72), and a heat-conducting plate (74) is fixedly provided in the heating groove (72). A heating cotton felt (75) for contacting the film (8) to achieve heating of the film (8) is fixedly provided on the heat-conducting plate (74).

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