Film cutting and winding mechanism

Abstract

The utility model provides a thin film cutting and winding mechanism which comprises two oppositely-arranged mounting plates, a guide roller rotationally arranged between the two mounting plates, a collecting unit used for driving thin films to be conveyed and collecting the thin films, and a cutting unit used for cutting off the thin films. The two material collecting units are arranged on the front side and the rear side of the guide roller correspondingly, the thin film is wound through the guide roller and the material collecting units, and the material collecting units drive the thin film to be conveyed and wound to form a rolled film. The cutting unit comprises a first cutting part arranged below the guide roller and a second cutting part. The first cutting part cuts the film in the extending direction of the film so that the film can be cut into two sheet-shaped structures. In the width direction of the film, the second cutting part overlaps the film, and the second cutting part divides the film into a plurality of split bodies in the width direction of the film in the length direction of the second cutting part. In the winding process, multi-shape and multi-size cutting is achieved, friction damage to a film caused by secondary cutting is avoided, production efficiency is improved, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting equipment, in particular to a film cutting and winding mechanism. Background Art

[0002] The conductive PE bag is made by the hot sealing, cutting and ironing process of the conductive PE roll film and the tubular film. In addition, when the conductive PE roll film is prepared by the blown film process to obtain the electrostatic PE protective film, the structure of the film is formed into a circle and then collected to form a roll film after the film is formed. The conductive bag has good mechanical properties, and the charge accumulated on the products contained can be well discharged through the bag body, which can protect the electronic sensitive components from the damage of electromagnetic waves and static electricity. In addition, the superior light shielding property can avoid the damage of the photosensitive components and products during the processes of transportation and storage.

[0003] In the production and manufacturing process of the film, the film slitter is a common device for longitudinally cutting the wide roll film, and the wide film is cut into several narrow film rolls by the film slitter.

[0004] The existing film slitter is a separate device. Most of them place the film made into a roll film on the film slitter and perform the slitting and cutting process through the fixed cutter transmitted into the machine to obtain the cutting in the length direction of the film. With such a setting, the process of cutting and collecting the film is carried out after the film is collected, transmitted and output. For the conductive PE bag, it is easy to cause friction or damage to the film surface during the cutting process, thereby reducing its service performance. Content of the Utility Model

[0005] In view of this, the utility model aims to provide a film cutting and winding mechanism, which can realize the film cutting in different directions simultaneously during the film collection process to meet the needs of different customers and avoid the surface damage caused by the re - transmission and cutting of the film.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A film cutting and winding mechanism includes two oppositely arranged mounting plates, a guide roller rotatably arranged between the two mounting plates, two transmission rollers for clamping the film, a material receiving unit for driving the film transmission and collecting the film, and a cutting unit for cutting the film;

[0008] The two material receiving units are respectively arranged on the front and rear sides of the guide roller, the film is wound around the guide roller and the material receiving unit, and the material receiving unit drives the film to be transmitted and wound into a roll film;

[0009] The cutting unit includes a first cutting part arranged below the guide roller and second cutting parts respectively arranged on the upper and lower sides of the transmission roller;

[0010] The first cutting part cuts along the extending direction of the film, so that the film is cut into two sheet-like structures, and the two pieces of the film are respectively collected by the winding units on both sides.

[0011] Along the width direction of the film, the second cutting part is arranged overlapping with the film, and the second cutting part divides the width direction of the film into a plurality of segments along its length direction.

[0012] Furthermore, the first cutting part includes slitting parts oppositely arranged on both sides in the width direction of the film.

[0013] Furthermore, the slitting part includes a traveling part, and a cutter connected to the traveling part and inserted into the film.

[0014] The traveling part slides along the length direction of the guide roller on a guide rod, and the guide rod is fixedly connected between the two mounting plates.

[0015] The traveling part is provided with a traction part for pulling the cutter to slide along the length of the guide roller, and the traction part positions the cutters on both sides at the two ends in the width direction of the film.

[0016] Furthermore, the traction part includes a wire connected to the cutter, a gravity block arranged at the other end of the wire, and a pulley connected to the mounting plate.

[0017] The wire penetrates through the mounting plate, and the wire is arranged outside the mounting plate in a vertical direction via the pulley.

[0018] Furthermore, along the front-back direction of the guide roller, the two guide rods are arranged on both sides of the film.

[0019] The traveling part includes a roller set mounted on the guide rod, the roller set includes rollers correspondingly arranged above each guide rod, and a pin shaft penetrating through the centers of the two rollers, and the cutter is arranged at the central position in the length direction of the pin shaft.

[0020] The wire is fixedly connected to the cutter.

[0021] Furthermore, the cutter includes a cross plate fixed on the pin shaft, and a vertical plate vertically connected to the cross plate, and the cross plate and the vertical plate are formed into an "L" shape.

[0022] The vertical plate is inserted into the film, and one end of the cross plate close to the vertical plate has a cutting edge for cutting the film, and / or, the contact surface between the lower part of the vertical plate and the film is provided with the cutting edge.

[0023] Further, along the length direction of the guide roller, two of the roller groups are provided along the length direction of the guide roller. The two roller groups are connected by a fixed plate, and the two fixed plates are connected to both sides of the cutter.

[0024] The cross plate is fixedly arranged between the two fixed plates.

[0025] Further, the two conveying rollers (5) are arranged below the guide rod (4013); the film is wound into the clamping space between the two conveying rollers via the guide roller, and the film between the guide roller and the conveying rollers is in the vertical direction.

[0026] Further, the winding unit includes a driving roller rotatably connected between two mounting plates, and a collecting roller abutted against the outer side of the driving roller;

[0027] A first driving part connected to the outer side of the mounting plate is arranged on one side of the driving roller, and the power output end of the first driving part is connected to the driving roller.

[0028] Further, the second cutting part includes at least one upper cutting knife arranged above the guide roller, and at least one lower cutting knife arranged on one side of the driving roller;

[0029] Along the width direction of the film, the positions of the upper cutting knife and the lower cutting knife are correspondingly arranged;

[0030] At least one of the upper cutting knife and the lower cutting knife divides the film into a plurality of the separated bodies.

[0031] Compared with the prior art, the present utility model has the following advantages:

[0032] For the film cutting and winding mechanism of the present utility model, the film is wound and supported by arranging guide wheels, the film is collected into a roll material by the winding unit, and the film is cut along its length direction before collection by arranging the first cutting part to form two sheet-like structures to meet the demand for sheet-like PE molds. By further arranging the second cutting part, the film can be cut into separated bodies with different widths, so as to meet different size requirements. The film cutting and winding mechanism of the present utility model realizes multi-shape and multi-size cutting during the winding process, which not only avoids the friction damage to the film caused by re-cutting, but also improves the production efficiency and has strong adaptability.

[0033] In addition, by arranging the cutting knife on the traveling part and keeping the cutting knife within the annular thin film through the traction of the traction part, the thin film is kept stretched in the width direction, facilitating the cutting by the cutting knife. Moreover, by setting the traction part as a wire and a gravity block, the stretching effect of different thin films in the width direction can be better by adjusting the gravity of the gravity block, effectively ensuring the cutting effect of the cutting edge of the cutting knife and preventing burrs or pits from appearing during the cutting of the thin film.

[0034] In addition, by arranging two sets of roller groups, it is ensured that the cutting knife will not tilt due to the resistance of the thin film during the cutting process, so as to maintain the stability of the cutting knife. Also, by arranging a transmission roller below the guide rod, the two transmission rollers and the guide roller above the guide rod fix the thin film in a vertical state, improving the stretching effect of the thin film in the length direction and facilitating the cutting by the first cutting part and the second cutting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0036] Figure 1 is a schematic three-dimensional structure view of the first perspective of the thin film cutting and winding mechanism according to the embodiment of the present utility model;

[0037] Figure 2 is a schematic three-dimensional structure view of the second perspective of the thin film cutting and winding mechanism according to the embodiment of the present utility model;

[0038] Figure 3 is a schematic front view structure of the thin film cutting and winding mechanism according to the embodiment of the present utility model;

[0039] Figure 4 is a schematic structure view of the traveling part according to the embodiment of the present utility model;

[0040] Figure 5 is a schematic left view structure of the traveling part according to the embodiment of the present utility model;

[0041] Figure 6 is Figure 2 a partial enlarged view of I in

[0042] Figure 7 is a schematic three-dimensional structure view of the third perspective of the thin film cutting and winding mechanism according to the embodiment of the present utility model;

[0043] Figure 8 is a schematic top view structure of the thin film cutting and winding mechanism according to the embodiment of the present utility model;

[0044] Figure 9 isFigure 8 Schematic cross-sectional structure diagram at A-A in the middle.

[0045] Explanation of reference numerals in the drawings:

[0046] 1. Mounting plate; 2. Guide roller; 3. Material collecting unit; 4. Cutting unit; 5. Transfer roller; 6. Cutting shaft; 7. Horizontal cutter; 8. Driving motor; 9. Parallel shaft;

[0047] 301. Driving roller; 302. Collection roller; 303. First driving part;

[0048] 401. First cutting part; 402. Second cutting part;

[0049] 4011. Traveling part; 4012. Cutter; 4013. Guide rod; 4014. Traction part; 4015. Roller; 4016. Pin shaft; 4017. Fixed plate;

[0050] 4021. Upper cutter; 4022. Lower cutter; 4023. Upper mounting shaft;

[0051] 40121. Horizontal plate; 40122. Vertical plate;

[0052] 40141. Pulling wire; 40142. Gravity block; 40143. Pulley; 40144. Support plate. Detailed implementation manners

[0053] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0054] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connection member" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with the specific circumstances.

[0056] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0057] This embodiment relates to a film cutting and winding mechanism, which includes two oppositely arranged mounting plates 1, a guide roller 2 rotatably arranged between the two mounting plates 1, two conveying rollers 5 for clamping the film, a material receiving unit 3 for driving the film conveyance and collecting the film, and a cutting unit 4 for cutting the film.

[0058] Among them, the two material receiving units 3 are respectively arranged on the front and rear sides of the guide roller 2, the film is wound around the guide roller 2 and the material receiving unit 3, and the material receiving unit 3 drives the film to convey and wind it into a wound film. The cutting unit 4 includes a first cutting part 401 arranged below the guide roller 2, and second cutting parts 402 respectively arranged on the upper and lower sides of the conveying roller 5. The first cutting part 401 cuts along the extension direction of the film, so that the film is cut into two sheet-like structures, and the two films are respectively collected by the material receiving units 3 on both sides. Along the width direction of the film, the second cutting parts 402 are arranged overlapping with the film, and the second cutting parts 402 divide the width direction of the film into multiple segments along its length direction.

[0059] For the film cutting and winding mechanism described in this embodiment, the film is wound and supported by setting a guide wheel, the film is collected into a wound material by the material receiving unit 3, and by setting the first cutting part 401 to cut the film along its length direction before collection and form two sheet-like structures to meet the demand for sheet-like PE molds. By further setting the second cutting parts 402, the film can be cut into segments of different widths, thus meeting different size requirements. The film cutting and winding mechanism of the present utility model realizes cutting in multiple shapes and sizes during the winding process, which not only avoids frictional damage to the film caused by re-cutting, but also improves production efficiency and has strong adaptability.

[0060] Based on the above overall introduction, an exemplary structure of the film cutting and winding mechanism of this embodiment is as Figures 1 to 2 shown. The two mounting plates 1 are in a flat plate-like structure, and this device can be installed at the output end of the film preparation device and fixedly connected to the film device through the two mounting plates 1. The prepared film is wound around the guide roller 2, and the film is collected in the form of a wound film by the drive of the material receiving unit 3. The first cutting part 401 and the second cutting parts 402 are both arranged between the two mounting plates 1, and the first cutting part 401 and the second cutting parts 402 can be correspondingly applied in the film collection process according to the required outer shape structure of the film.

[0061] The conductive PE film of this embodiment is obtained by mixing and stirring the raw materials to obtain a polyethylene masterbatch, and then adding the raw materials into a blow molding machine to prepare the electrostatic PE protective film through a film blowing process. Therefore, the conductive PE protective film is in an annular structure. To obtain a sheet-shaped protective film, as a preferred embodiment, the first cutting part 401 includes slitting parts relatively arranged on both sides in the width direction of the film. Specifically, as Figures 1 to 3 shown, the first cutting part 401 is arranged below the guide roller 2 and is used for dividing the film into two sheet-shaped structures during the film transmission process. Of course, if the required film is a closed annular structure, that is, the first cutting part 401 is not used.

[0062] Furthermore, as Figure 4 shown, the slitting part includes a traveling part 4011 and a cutter 4012 connected to the traveling part 4011 and inserted into the film. The traveling part 4011 slides along the length direction of the guide roller 2 on the guide rod 4013, and the guide rod 4013 is fixedly connected between the two mounting plates 1. The traveling part 4011 is provided with a traction part 4014 for pulling the cutter 4012 to slide along the length of the guide roller 2, and the traction part 4014 makes the cutters 4012 on both sides be arranged at both ends in the width direction of the film.

[0063] Specifically, in combination with Figures 1 to 4 shown, the guide rod 4013 is a cylindrical rod-shaped structure. The traveling part 4011 is slidably arranged on the guide rod 4013. By arranging the cutter 4012 on the traveling part 4011 and pulling the cutter 4012 to be kept inside the circular film through the traction of the traction part 4014, the film is kept stretched in the width direction, which is convenient for the cutter 4012 to cut.

[0064] Preferably, as Figures 5 to 6 shown, the traction part 4014 includes a wire 40141 connected to the cutter 4012, a gravity block 40142 arranged at the other end of the wire 40141, and a pulley 40143 connected to the mounting plate 1. The wire 40141 penetrates through the mounting plate 1, and the wire 40141 is arranged outside the mounting plate 1 in a vertical direction via the pulley 40143. In this embodiment, an L-shaped support plate 40144 is arranged outside the mounting plate 1, and the pulley 40143 is connected to the support plate 40144, and the pulley 40143 can rotate relative to the support plate 40144. In this embodiment, the pulley 40143 has a depression at the center position of its thickness for accommodating the wire 40141 to pass through. The gravity block 40142 is arranged at the end of the wire 40141 far from the traveling part 4011, and the film is stretched in the width direction by the gravity of the gravity block 40142 and the abutting force between the cutter 4012 and the film.

[0065] Therefore, by setting the traction part 4014 as the wire 40141 and the gravity block 40142, the stretching effect of different films in the width direction can be better adjusted by adjusting the gravity of the gravity block 40142, effectively ensuring the cutting effect of the cutting edge of the cutter 4012 and preventing burrs or pits from appearing during the film cutting process.

[0066] As a preferred embodiment, in combination with Figures 1 to 5 As shown, along the front and back direction of the guide roller 2, two guide rods 4013 are arranged on both sides of the film. The traveling part 4011 includes a set of rollers 4015 mounted on the guide rods 4013. The set of rollers 4015 includes rollers 4015 correspondingly arranged above each guide rod 4013, and a pin shaft 4016 passing through the centers of the two rollers 4015. The cutter 4012 is arranged at the central position in the length direction of the pin shaft 4016, and the wire 40141 is fixedly connected to the cutter 4012.

[0067] To ensure the stability of the traveling part 4011 and the cutter 4012, in this embodiment, two sets of rollers 4015 are used to fix the cutter 4012, and the two guide rods 4013 are fixedly connected in parallel between the two mounting plates 1, preventing the situation that one end is upturned due to the contact between the cutter 4012 and the film, and avoiding affecting the cutting effect of the cutter 4012 on the film.

[0068] Furthermore, the cutter 4012 includes a horizontal plate 40121 fixed on the pin shaft 4016, and a vertical plate 40122 vertically connected to the horizontal plate 40121. The horizontal plate 40121 and the vertical plate 40122 are formed into an "L" shape. The vertical plate 40122 is inserted into the film, and one end of the horizontal plate 40121 close to the vertical plate 40122 has a cutting edge for cutting the film. At the same time, a cutting edge is provided on the contact surface between the lower part of the vertical plate 40122 and the film.

[0069] In terms of the specific structure, as Figure 4 and Figure 5 shown, the vertical plate 40122 of the cutter 4012 is perpendicularly connected to the horizontal plate 40121, and the vertical plate 40122 is inserted into the annular film. The horizontal plate 40121 is used to cut the film from top to bottom. To achieve a better cutting effect, a cutting edge is provided at one end of the horizontal plate 40121 close to the vertical plate 40122. When the film is transmitted from top to bottom, it is cut by the cutting edge on the horizontal plate 40121 into two film structures in sheet form. Of course, a cutting edge can also be provided at the lower part of the vertical plate 40122, that is, cutting edges are provided at both the lower part of the vertical plate 40122 and the front part of the horizontal plate 40121, so that the film is cut both horizontally and vertically, thereby achieving a better cutting effect.

[0070] In other embodiments, a cutting edge can also be provided only at the lower part of the vertical plate 40122 or the front part of the horizontal plate 40121, which can also play a role in cutting the film.

[0071] As shown Figures 1 to 5 In the length direction of the guide roller 2, two sets of rollers 4015 are provided. The two sets of rollers 4015 are connected by a fixing plate 4017, and the two fixing plates 4017 are connected to both sides of the cutting knife 4012. A cross plate 40121 is fixedly arranged between the two fixing plates 4017. By providing two sets of rollers 4015, it is ensured that the cutting knife 4012 will not tilt due to the resistance of the film during the cutting process, so as to maintain the stability of the cutting knife 4012.

[0072] In addition, in order to ensure that the cutting knife 4012 is fixedly connected to the middle of the pin shaft 4016 to ensure that the position deviation of the cutting knife 4012 in the direction perpendicular to the film thickness is small, in this embodiment, fixing nuts are provided outside the fixing plate 4017. The middle part of the pin shaft 4016 has a threaded section, and the fixing nut is threadedly connected to the threaded section of the pin shaft 4016 to fix and limit the cutting knife 4012 between the two fixing plates 4017. The pull wire 40141 is fixed on the cross plate 40121 of the cutting knife 4012, and the fixing methods such as bolting and tying can be adopted.

[0073] To further ensure the cutting effect of the film, as Figures 1 to 3 shown, two conveying rollers 5 for clamping the film are arranged below the guide rod 4013. The film is wound into the clamping space between the two conveying rollers 5 through the guide roller 2, and the film between the guide roller 2 and the conveying roller 5 is in the vertical direction. The driving roller of this embodiment is rotatably connected between the two mounting plates 1 on both sides. When the film is driven to be conveyed, the conveying roller 5 plays a role in positioning the film. By arranging the conveying roller 5 below the guide rod 4013, the two conveying rollers 5 and the guide roller 2 above the guide rod 4013 fix the film in a vertical state, improving the stretching effect of the film in the length direction and facilitating the cutting of the first cutting part 401 and the second cutting part 402.

[0074] Combined with Figure 1 , Figure 2 , Figure 8 and Figure 9 shown, the material receiving unit 3 includes a driving roller 301 rotatably connected between two mounting plates 1, and a collecting roller 302 abutted against the outside of the driving roller 301. A first driving part 303 connected to the outside of the mounting plate 1 is provided on one side of the driving roller 301, and the power output end of the first driving part 303 is connected to the driving roller 301. The first driving part 303 uses a rotary motor. The outer ring of the driving roller 301 in this embodiment is made of a rubber material, and in order to increase the friction and improve the transmission efficiency of the film, the outer circumference of the driving roller 301 is provided with staggered and overlapping spiral knurling grooves.

[0075] The collecting roller 302 is made of steel. To facilitate the removal of the roller, a paper annular drum is sleeved outside the collecting roller 302. The outside of the drum is in contact with the driving roller 301. The rotation directions of the two driving rollers 301 and the collecting roller 302 are opposite. The collecting rollers 302 on both sides respectively roll the film cut into two pieces by the first cutting part 401 into a rolled film structure.

[0076] As a preferred embodiment, the second cutting part 402 includes at least one upper cutting knife 4021 arranged above the guide roller 2 and at least one lower cutting knife 4022 arranged on one side of the driving roller 301. Along the width direction of the film, the positions of the upper cutting knife 4021 and the lower cutting knife 4022 are correspondingly arranged. At least one upper cutting knife 4021 and the lower cutting knife 4022 divide the film into multiple segments.

[0077] Correspondingly, as Figures 1 to 9 shown, the lower cutting knife 4022 is held on one side of the driving roller 301 by another upper mounting shaft 4023. The number and positions of the lower cutting knife 4022 and the upper cutting knife 4021 correspond one by one. During the film transmission process, the upper cutting knife 4021 and the lower cutting knife 4022 cut together at the same position in the width direction of the film. In this embodiment, an upper mounting shaft 4023 for mounting the upper cutting knife 4021 and a lower mounting shaft for mounting the lower cutting knife 4022 are arranged between the two mounting plates 1. Just as Figures 1 to 7 shown, for the convenience of implementation, three upper cutting knives 4021 arranged at intervals are sleeved on the upper mounting shaft 4023. Correspondingly, three lower cutting knives 4022 are connected to the lower connecting shaft. In this embodiment, the two lower connecting shafts are respectively arranged on one side close to the two driving rollers 301.

[0078] The structures of the upper cutting knife 4021 and the lower cutting knife 4022 are the same. Taking the upper cutting knife 4021 as an example, the upper cutting knife 4021 includes a knife body mounting frame sleeved on the upper mounting shaft 4023 and a cutting knife mounted on the upper cutting knife 4021. And, to facilitate the adjustment of the positions of the upper and lower cutting knives 4022, a pressing handle is arranged on the knife body mounting frame. The pressing handle penetrates and is inserted into a connecting sleeve sleeved on the upper mounting shaft 4023 on the knife body mounting frame. The pressing handle is threadedly connected to the knife body mounting frame, and its threaded end abuts against the upper mounting shaft 4023.

[0079] In addition, as Figure 7As shown, when the film on the collecting roller 302 is collected into a rolled film with a required diameter, a cutting shaft 6 connected between the two mounting plates 1 is respectively arranged on one side of the driving roller 301 or the collecting roller 302. A transverse cutter 7 is sleeved on the cutting shaft 6, and the transverse cutter 7 can cut along the width direction of the film. The outer periphery of the cutting shaft 6 in this embodiment is a threaded shaft, the transverse cutter 7 is sleeved on the cutting shaft 6, and a driving motor 8 is further arranged on one of the mounting plates 1 to drive the cutting shaft 6 to rotate. In addition, there is a parallel shaft 9 parallel to the cutting shaft 6 on one side of the cutting shaft 6, and the transverse cutter 7 is simultaneously sleeved on the cutting shaft 6 and the parallel shaft 9. The parallel shaft 9 restricts the rotation of the transverse cutter 7 and plays a guiding role.

[0080] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A film cutting and winding mechanism, characterized in that: The device comprises two mounting plates (1) arranged opposite to each other, a guide roller (2) rotatably arranged between the two mounting plates (1), two transmission rollers (5) for clamping the film, a receiving unit (3) for driving the film transmission and collecting the film, and a cutting unit (4) for cutting the film; The two receiving units (3) are respectively arranged at the front and rear sides of the guide roller (2); the film is wound through the guide roller (2) and the receiving units (3); the receiving units (3) drive the film to be transported and wound to form a roll film; The cutting unit (4) comprises a first cutting portion (401) arranged below the guide roller (2), and second cutting portions (402) respectively arranged on the upper and lower sides of the transmission roller (5); The first cutting portion (401) cuts along the extension direction of the film, so that the film is cut into two sheet structures, and the two sheets of the film are collected by the receiving units (3) on both sides respectively; Along the width direction of the film, the second cutting portion (402) is overlapped with the film, and the second cutting portion (402) divides the film into a plurality of parts along its length direction.

2. The film cutting and winding mechanism according to claim 1, characterized in that: The first cutting portion (401) includes slitting portions arranged on two sides opposite to each other in the width direction of the film.

3. The film cutting and winding mechanism according to claim 2, characterized in that: The cutting part comprises a running part (4011) and a cutting knife (4012) connected to the running part (4011) and inserted into the film; The walking part (4011) slides on the guide rod (4013) along the length direction of the guide roller (2), and the guide rod (4013) is fixedly connected between the two mounting plates (1); The walking portion (4011) is provided with a traction portion (4014) for traction of the cutter (4012) to slide along the length of the guide roller (2), and the traction portion (4014) enables the cutters (4012) on both sides to be arranged at both ends in the width direction of the film.

4. The film cutting and winding mechanism according to claim 3, characterized in that: The traction part (4014) comprises a pull wire (40141) connected to the cutter (4012), a gravity block (40142) provided at the other end of the pull wire (40141), and a pulley (40143) connected to the mounting plate (1); The pull wire (40141) passes through the mounting plate (1), and the pull wire (40141) is arranged on the outside of the mounting plate (1) in a vertical direction via the pulley (40143).

5. The film cutting and winding mechanism according to claim 4, characterized in that: Along the front-rear direction of the guide roller (2), the two guide rods (4013) are arranged on both sides of the film; The walking part (4011) comprises a roller (4015) group mounted on the guide rod (4013), the roller (4015) group comprises a roller (4015) correspondingly arranged above each guide rod (4013), and a pin (4016) passing through the center of two rollers (4015), and the cutter (4012) is arranged at the center position of the pin (4016) in the length direction; The pull wire (40141) is fixedly connected to the cutter (4012).

6. The film cutting and winding mechanism according to claim 5, characterized in that: The cutter (4012) comprises a horizontal plate (40121) fixed on the pin shaft (4016), and a vertical plate (40122) vertically connected to the horizontal plate (40121), wherein the horizontal plate (40121) and the vertical plate (40122) are formed into an "L" shape; The vertical plate (40122) is inserted into the film, and the end of the horizontal plate (40121) close to the vertical plate (40122) has a blade for cutting the film, and / or the lower part of the vertical plate (40122) is provided with the blade on the abutment surface with the film.

7. The film cutting and winding mechanism according to claim 6, characterized in that: Two roller (4015) groups are provided along the length direction of the guide roller (2), the two roller (4015) groups are connected by a fixing plate (4017), and the two fixing plates (4017) are connected to both sides of the cutter (4012); The transverse plate (40121) is fixedly arranged between the two fixed plates (4017).

8. The film cutting and winding mechanism according to claim 3, characterized in that: The two transmission rollers (5) are arranged below the guide rod (4013); The film is wound through the guide roller (2) toward the clamping space of the two transmission rollers (5), and the film between the guide roller (2) and the transmission roller (5) is in a vertical direction.

9. The film cutting and winding mechanism according to claim 3, characterized in that: The material receiving unit (3) comprises a driving roller (301) rotatably connected between two mounting plates (1), and a collecting roller (302) abutting against the outer side of the driving roller (301); A first driving part (303) connected to the outside of the mounting plate (1) is provided on one side of the active roller (301), and a power output end of the first driving part (303) is connected to the active roller (301).

10. The film cutting and winding mechanism according to claim 9, characterized in that: The second cutting portion (402) comprises at least one upper cutting knife (4021) arranged above the guide roller (2), and at least one lower cutting knife (4022) arranged on one side of the active roller (301); Along the width direction of the film, the upper cutting knife (4021) and the lower cutting knife (4022) are arranged at corresponding positions; At least one of the upper cutting knife (4021) and the lower cutting knife (4022) divides the film into a plurality of the separate parts.

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