CN112937961A

CN112937961A - Film rolling device

Info

Publication number: CN112937961A
Application number: CN202110107584.2A
Authority: CN
Inventors: 缑海啸; 陈学庚; 温浩军; 颜利民; 赵岩; 王茜
Original assignee: Shihezi University
Current assignee: Shihezi University
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-06-11
Anticipated expiration: 2041-01-27
Also published as: CN112937961B

Abstract

The invention discloses a film rolling device, relating to the technical field of mulching film recovery devices, wherein two side plates are oppositely arranged and connected through a plurality of fixed beams, two ends of each fixed beam are respectively fixed at one opposite side of the two side plates, the fixed beam is positioned inside the packing belt, the driving device is used for driving the packing belt to rotate, the supporting component is used for supporting the packing belt, and the supporting component can prevent the deformation of the packing belt, the two shaping wheels are respectively attached to the outer walls of the two ends of the packing belt, and two sizing wheels are installed respectively on two curb plates, form the packing cavity between one side of packing area and two sizing wheels, the packing cavity is used for receiving the conveying belt and carries the plastic film of coming, and the packing area can drive the plastic film and rotate and form the membrane book, and inside the auxiliary supporting roller was located the packing area, the both ends of auxiliary supporting roller were installed on two curb plates, and the periphery of auxiliary supporting roller was taken with the packing and is gone up the inner wall laminating that is close to sizing wheel one side. This roll up membrane device can improve the stability of rolling up membrane device structure.

Description

Film rolling device

Technical Field

The invention relates to the technical field of mulching film recovery devices, in particular to a film rolling device.

Background

Mulching film, i.e., ground covering film, is usually a transparent or black PE film, and also has green and silver films, and is used for ground covering to increase the temperature of soil, maintain the moisture of soil, maintain the soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and promote the growth of plants. The mulching film looks thin and thin, but has quite large effect, not only can improve the ground temperature, preserve water, preserve soil, preserve fertilizer and improve fertilizer efficiency, but also has multiple functions of killing weeds, preventing diseases and insects, preventing drought and waterlogging, inhibiting salt and preserving seedlings, improving near-ground photo-thermal conditions, enabling products to be sanitary and clean and the like.

In the practical application process, the agricultural mulching film needs to be timely and effectively recycled, otherwise, environmental pollution is caused, and soil hardening and degradation are caused. Although the degradable mulching films are available for selective use, the degradable mulching films are limited in popularization and use, the cleaning of the residual mulching films in the farmland still needs to be completed by a large amount of manpower and material resources, the labor cost is high, the working efficiency is low, and the mechanized residual mulching film recovery is an effective means for solving the problem of residual mulching film pollution.

However, in the existing net chain type film rolling device, after the outer diameter of the film roll is larger than the inner diameter of a cavity formed by the net chain, the net chain is easily extruded by the compressed film roll to deform under the action of the reaction force of the compressed film roll, so that the whole structure is damaged, the mulching film compression operation effect is influenced, the film roll is loose, and the single film rolling operation distance is short.

Disclosure of Invention

The invention aims to provide a film rolling device, which is used for solving the problems in the prior art, improving the structural stability of the film rolling device and ensuring the pressure bearing capacity of the film rolling device.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a film rolling device which comprises two side plates, a packaging belt, a driving device and a supporting assembly, wherein the two side plates are oppositely arranged and connected through a plurality of fixing beams, two ends of each fixing beam are respectively fixed on one opposite side of the two side plates, the fixing beams are positioned in the packaging belt, the driving device is used for driving the packaging belt to rotate, the supporting assembly is used for supporting the packaging belt and can prevent the packaging belt from deforming, the supporting assembly comprises two shaping wheels and a plurality of auxiliary supporting rollers, the two shaping wheels are respectively attached to the outer walls of two ends of the packaging belt, the two shaping wheels are respectively arranged on the two side plates, a packaging chamber is formed between one side of the packaging belt and the two shaping wheels, and the packaging chamber is used for receiving a mulching film conveyed by a conveying belt, the utility model discloses a shaping wheel, including baling area, supplementary backing roll, shaping wheel, binding belt, auxiliary supporting roller, binding belt, the baling area can drive the plastic film and rotate and form the membrane book, auxiliary supporting roller is located inside the baling area, install at two at auxiliary supporting roller's both ends on the curb plate, just auxiliary supporting roller's periphery with be close to on the baling area the inner wall laminating of shaping wheel one side.

Preferably, the packing belt comprises a plurality of chains and a plurality of connecting pieces, the chains are arranged side by side along the axial direction of the film roll, the driving device comprises a plurality of driving pieces, the inner side of each chain is meshed with the periphery of each driving piece, each driving piece is respectively located at different positions in each chain, adjacent chains are connected through the plurality of connecting pieces, two ends of each connecting piece are respectively fixed on different chains, the chains located at two ends are driving chains, the outer surface of each driving chain, close to one side of each shaping wheel, is respectively meshed with the peripheries of the two shaping wheels, and the inner surface of each driving chain, close to one side of each shaping wheel, is respectively meshed with the periphery of each auxiliary supporting roller;

the driving part comprises an active driving part and a passive driving part, the active driving part is used for connecting a driving element, the driving element can drive the active driving part to drive the chain to drive, and the chain can drive the passive driving part to rotate.

Preferably, the pitches of the chains are the same, the chain between the two transmission chains is a support chain, the support chain is multiple, and the inner surface of each support chain, which is close to one side of the sizing wheel, is engaged with the periphery of the auxiliary support roller.

Preferably, the inner surface of each chain, which is close to the sizing wheel, is engaged with the outer periphery of each transmission element, each chain comprises a plurality of chain link groups, the chain link groups are the same in length, adjacent chain link groups are rotatably connected through a chain link pin, adjacent chain link groups located at the same horizontal position are fixed through the connecting piece, and two ends of the connecting piece are respectively fixed on two adjacent chain link groups at the same horizontal position.

Preferably, a plurality of supporting bands are further fixed between two adjacent connecting pieces in the vertical direction, two ends of each supporting band are respectively bonded on the two adjacent connecting pieces, the two adjacent connecting pieces on different horizontal positions form a connecting piece group, and the supporting bands between the different connecting piece groups are arranged in a staggered mode.

Preferably, the driving transmission member is a driving roller, the driven transmission member is a driven roller, the driving roller is one, and the driven rollers are multiple.

Preferably, a plurality of rails are further arranged between the two side plates, the rails are fixed on the fixed beam, the positions of the rails correspond to the positions of the support chains respectively, and the rails are used for limiting the support chains in the axial direction and the radial direction of the film roll.

Preferably, the auxiliary supporting roller comprises a rotating shaft and a plurality of supporting chain wheels, two ends of the rotating shaft are rotatably installed on the side plates through bearings respectively, the supporting chain wheels are fixedly sleeved on the periphery of the rotating shaft and correspond to the supporting chains one by one, and the periphery of the supporting chain wheels can be meshed with the periphery of the supporting chains.

Preferably, still include two anti-winding boards, two the anti-winding board is fixed respectively two on the curb plate inside wall, and two the anti-winding board all is located two between the curb plate, two be equipped with the breach on the anti-winding board, the shape of breach with the sizing wheel periphery with packing belt tip periphery shape is unanimous, just keep away from on the sizing wheel a lateral wall of curb plate does not bulge keep away from on the anti-winding board one side of curb plate.

Preferably, a fixing seat is fixed on each side plate at a position corresponding to the sizing wheel, and a shaft of the sizing wheel extends into the fixing seat and is rotatably connected with the fixing seat.

Compared with the prior art, the invention has the following technical effects:

the invention provides a film rolling device, wherein a supporting assembly is used for supporting a packing belt, the outer diameter of a film roll is gradually increased to contact and extrude the packing belt in the film rolling process, the supporting assembly can provide a supporting force opposite to the extrusion force direction of the film roll for the packing belt, prevent the packing belt from deforming and improve the strength and the operation stability of the film rolling device, the supporting assembly comprises two shaping wheels and a plurality of auxiliary supporting rollers, the two shaping wheels are respectively attached to the outer walls of the two ends of the packing belt, the shaping wheels can not limit the normal transmission of the packing belt while supporting the packing belt, a packing chamber is formed between one side of the packing belt and the two shaping wheels to prevent a mulching film from falling off through the two sides of the packing belt and influencing the film rolling efficiency, the auxiliary supporting rollers are positioned in the packing belt, the two ends of the auxiliary supporting rollers are arranged on two side plates, and the peripheries of the auxiliary supporting, guarantee the packing area at the transmission in-process, drive the stable rotation of auxiliary backing roll, and the setting wheel supports the tip in packing area, and the auxiliary backing roll supports the middle part in packing area, improves the supporting effect, guarantees the bearing capacity in packing area, and the life of extension roll membrane device improves the stability of operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a film winding apparatus according to an embodiment;

FIG. 2 is a front view of the film winding assembly of FIG. 1;

FIG. 3 is a cross-sectional view A-A of the film winding assembly of FIG. 2;

FIG. 4 is a schematic diagram illustrating an external structure of a film winding apparatus according to an embodiment;

FIG. 5 is a rear view of the external structure of the film rolling device of FIG. 4;

FIG. 6 is a schematic view illustrating the connection of a link set and a connecting member in the film winding device according to the first embodiment;

FIG. 7 is a schematic structural diagram of a link set in a film winding device according to the first embodiment;

FIG. 8 is a schematic view of a part of a packing belt of the film winding device according to the first embodiment;

FIG. 9 is a schematic structural view of a film winding apparatus according to a second embodiment;

FIG. 10 is a cross-sectional view of the film winding assembly of FIG. 9;

FIG. 11 is a schematic view of the external structure of a film winding apparatus according to a second embodiment;

FIG. 12 is a rear view of the external structure of the film rolling device of FIG. 11;

FIG. 13 is a schematic view of the connection between the link set and the connecting member in the film winding device provided in the second embodiment;

FIG. 14 is a schematic structural diagram of a link set in the film winding device provided in the second embodiment;

in the figure: 100-film winding device, 1-side plate, 11-fixed beam, 12-fixed seat, 13-track, 2-packing belt, 211-active transmission piece, 212-passive transmission piece, 22-chain, 221-transmission chain, 2211-chain link group, 222-support chain, 23-connecting piece, 24-support belt, 25-link pin, 3-support component, 31-shaping wheel, 32-auxiliary support roller and 4-anti-winding plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a film rolling device, which aims to solve the technical problems of unstable structure, weak pressure bearing capacity and easy deformation of the existing film rolling device.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

As shown in fig. 1-8, the present invention provides a film rolling device 100, which comprises two side plates 1, a packing belt 2, a driving device and a supporting assembly 3, wherein the two side plates 1 are oppositely arranged and connected through a plurality of fixing beams 11, two ends of the fixing beams 11 are respectively fixed on one opposite side of the two side plates 1, the fixing beams 11 are positioned inside the packing belt 2, the normal transmission of the packing belt 2 is not limited, and the formation of a film roll is not affected, the driving device is used for driving the packing belt 2 to rotate, the supporting assembly 3 is used for supporting the packing belt 2, when the film is rolled, the outer diameter of the film roll is gradually increased to contact and extrude the packing belt 2, the supporting assembly 3 can provide a supporting force opposite to the extrusion force direction of the film roll for the packing belt 2, the deformation of the packing belt 2 is prevented, the strength of the film rolling device 100 and the stability of operation are improved, the supporting assembly 3 comprises two shaping wheels 31 and a, the two shaping wheels 31 are respectively attached to the outer walls of two ends of the packing belt 2, the two shaping wheels 31 are respectively installed on the two side plates 1, a packing chamber is formed between one side of the packing belt 2 and the two shaping wheels 31, the mulching film is prevented from falling off from two sides of the packing belt 2 in the process of forming a rolled film to influence the film rolling efficiency, the packing chamber is used for receiving the mulching film conveyed by a conveying belt, the packing belt 2 can drive the mulching film to rotate and form a film roll, the auxiliary supporting roller 32 is located inside the packing belt 2, two ends of the auxiliary supporting roller 32 are installed on the two side plates 1, the periphery of the auxiliary supporting roller 32 is attached to the inner wall of one side, close to the shaping wheels 31, of the packing belt 2, the shaping wheels 31 support the end portions of the packing belt 2, the auxiliary supporting roller 32 supports the middle portion of the packing belt 2, the supporting effect is improved, the, the stability of operation is improved.

Specifically, the packing belt 2 includes a plurality of chains 22 and a plurality of connecting members 23, the plurality of chains 22 are arranged side by side along the axial direction of the film roll, it can be ensured that the chains 22 drive the film roll to rotate and pack, the driving device includes a plurality of driving members, the inner side of each chain 22 is engaged with the periphery of each driving member, the stable rotation of the driving members is ensured, and the stable transmission of the chains 22 is ensured, each driving member is respectively located at different positions in each chain 22, the chains 22 can be supported at different positions, the overall strength of the chains 22 is improved, the adjacent chains 22 are connected through the plurality of connecting members 23, the two ends of each connecting member 23 are respectively fixed on different chains 22, so that the plurality of chains 22 form a whole body, a packing chamber is conveniently formed, to realize the film rolling, the chains 22 located at the two ends are the driving chains 221, which mainly play a transmission role, the driving under the driving of, the outer surface of one side of each transmission chain 221, which is close to the shaping wheel 31, is respectively meshed with the peripheries of the two shaping wheels 31, the two shaping wheels 31 are respectively rotatably installed on the two side plates 1, so that the shaping wheels 31 can not limit the normal transmission of the transmission chains 221 while supporting the transmission chains 221, the running stability of the transmission chains is ensured, the inner surface of one side of each transmission chain 221, which is close to the shaping wheels 31, is respectively meshed with the peripheries of the auxiliary supporting rollers 32, the two ends of the auxiliary supporting rollers 32 are rotatably installed on the two side plates 1, the transmission chains 221 are ensured to drive the auxiliary supporting rollers 32 to stably rotate in the transmission process, and the stability of the transmission chains 221 in the running process is improved;

the driving medium includes active drive spare 211 and passive driving medium 212, active drive spare 211 is used for connecting drive element, drive element can drive active drive spare 211 and drive the transmission of chain 22, chain 22 can drive passive driving medium 212 and rotate, passive driving medium 212 can guarantee the stability of chain 22 transmission in-process, it is more excellent, passive driving medium 212 is a plurality of, and active drive spare 211 and a plurality of passive driving medium 212 are in the inboard evenly distributed of chain 22.

The pitches of the chains 22 are the same, synchronous transmission of the chains 22 can be ensured, the chain 22 between the two transmission chains 221 is a plurality of support chains 222, and the inner surfaces of the support chains 222, which are close to one side of the sizing wheel 31, are meshed with the periphery of the auxiliary support roller 32, so that the packing belt 2 forms an annular belt-shaped structure and can drive the mulching film to rotate and gradually form a film roll.

The inner surface of each chain 22 close to the sizing wheel 31 is meshed with the periphery of each transmission part, the chains 22 are prevented from shaking, the film rolling effect is affected, and the operation stability is improved, each chain 22 comprises a plurality of chain link groups 2211, the length of each chain link group 2211 is the same, adjacent chain link groups 2211 are rotatably connected through a chain link pin 25 to form a ring-shaped chain 22, each chain link group 2211 comprises a plurality of rotatably connected chain links, the adjacent chain link groups 2211 located at the same horizontal position are fixed through a connecting piece 23, namely, a plurality of connecting pieces 23 are arranged between two adjacent chains 22 located at the same horizontal position, and two ends of each connecting piece 23 are respectively fixed on the two adjacent chain link groups 2211, so that each chain 22 is integrated, the advantages are achieved, the connecting pieces 23 are tube bodies, the weight is light, the cost is low, and the transmission stability can be guaranteed.

Still be fixed with a plurality of support bands 24 between two adjacent connecting pieces 23 in vertical direction, be equipped with a plurality of support bands 24 between two adjacent chains 22 promptly, the both ends of supporting band 24 bond respectively on two adjacent connecting pieces 23, support band 24 and make for rubber materials, can increase and the frictional force between the plastic film, and two adjacent connecting pieces constitution connecting piece groups on different horizontal positions, support band 24 between the different connecting piece groups staggers the setting, form crisscross latticed, can support continuous plastic film, can make the soil granule that conveys again leak from the net, clear up impurity once more when realizing rolling up the membrane.

The driving transmission member 211 is a driving roller, the driven transmission member 212 is a driven roller, the driving roller is one, the driven rollers are multiple, preferably three, the chain 22 is enclosed into a trapezoid, one side of the chain is arc-shaped, the other three sides of the chain are straight lines, the driving roller is installed at one end of the arc-shaped chain, and the other three corners of the chain 22 are respectively driven rollers, so that the supporting effect of the driven rollers on the chain 22 is improved.

A plurality of rails 13 are further arranged between the two side plates 1, in the embodiment, one rail 13 is provided, the rail 13 is formed by two rail discs, the rails 13 are fixed on the fixed beam 11, each rail 13 corresponds to each support chain 222, and the rails 13 are used for limiting the support chains 222 in the axial direction and the radial direction of the film roll, so that the support chains 222 are always positioned in the rails 13 in the transmission process, the support chains 222 are prevented from being displaced in the axial direction of the film roll to influence the support effect, the support chains 222 are prevented from being extruded in the process of gradually increasing the outer diameter of the film roll, and the stability in the operation process is further ensured; preferably, the chain links on the support chain 222 are U-shaped, the U-shaped chain links can prevent mulching films from being wound on the chain 22, the lower parts of the outer ends of the two sides of the U-shaped chain links are respectively fixed with a limiting roller towards the outer side direction, and the limiting rollers slide in the track 23 in the working process to keep the support chain 222 and the transmission chain 221 in the same shape.

The auxiliary supporting roller 32 comprises a rotating shaft and a plurality of supporting chain wheels, two ends of the rotating shaft are respectively installed on the side plate 1 through rotation of a bearing, the rotating shaft is guaranteed to be fixed in the rotating process, the rotating shaft periphery is located by fixing the supporting chain wheels, the supporting chain wheels correspond to the supporting chains 222 one by one, stable supporting is conducted on the supporting chains 222 through the supporting chain wheels, the bearing capacity of the supporting chains 222 is improved, damage of the supporting chains by the film coils is avoided, the supporting chain wheel periphery can be meshed with the supporting chains 222 periphery, the supporting chain wheels can rotate along with the supporting chains 222, and normal transmission of the supporting chains 222 cannot be affected.

Still include two anti-winding board 4, two anti-winding board 4 are fixed respectively on two curb plate 1's inside wall, and two anti-winding board 4 all are located between two curb plates 1, be equipped with the breach on two anti-winding board 4, the shape of breach is unanimous with shaping wheel 31 periphery and packing area 2 tip peripheral shape, be close to on the shaping wheel 31 one side of anti-winding board 4 and packing area 2 on one side homoenergetic that is close to anti-winding board 4 and can imbed to the breach in, and keep away from on the shaping wheel 31 one side of keeping away from on the side wall of curb plate 1 the non-protrusion anti-winding board 4 of curb plate 1, can make in the cavity between shaping wheel 31 imbeds anti-winding board 4 and the curb plate 1 completely, protect the periphery teeth of a cogwheel of shaping wheel 31 through anti-winding board 4, prevent winding the plastic film, guarantee the normal work of whole equipment.

The position that corresponds sizing wheel 31 on each curb plate 1 all is fixed with fixing base 12, and the axle of sizing wheel 31 stretches into to fixing base 12 in to rotate with fixing base 12 and be connected, can guarantee the stability of sizing wheel 31 rotation in-process.

Example two

As shown in fig. 9-14, the main difference between the present embodiment and the first embodiment is that in the film winding device 100 provided in the present embodiment, the support chain 222 is a roller chain, and the auxiliary support roller 32 is not provided, so that the stability during operation can be ensured.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims

1. A roll membrane device which characterized in that: the packaging belt comprises two side plates, a packaging belt, a driving device and a supporting assembly, wherein the two side plates are oppositely arranged and connected through a plurality of fixed beams, two ends of each fixed beam are respectively fixed on one opposite side of the two side plates, the fixed beams are positioned in the packaging belt, the driving device is used for driving the packaging belt to rotate, the supporting assembly is used for supporting the packaging belt and can prevent the packaging belt from deforming, the supporting assembly comprises two shaping wheels and a plurality of auxiliary supporting rollers, the two shaping wheels are respectively attached to the outer walls of the two ends of the packaging belt, the two shaping wheels are arranged on the two side plates, a packaging cavity is formed between one side of the packaging belt and the two shaping wheels and is used for receiving a mulching film conveyed by a conveying belt, and the packaging belt can drive the mulching film to rotate and form a film roll, the utility model discloses a shaping wheel, including shaping wheel, auxiliary supporting roller, curb plate, shaping wheel, auxiliary supporting roller is located inside the packing area, install at two at auxiliary supporting roller's both ends on the curb plate, just auxiliary supporting roller's periphery with be close to on the packing area the inner wall laminating of shaping wheel one side.

2. The film rolling apparatus according to claim 1, wherein: the packaging belt comprises a plurality of chains and a plurality of connecting pieces, the chains are arranged side by side along the axial direction of the film roll, the driving device comprises a plurality of transmission pieces, the inner sides of the chains are meshed with the peripheries of the transmission pieces, the transmission pieces are respectively located at different positions in the chains, the adjacent chains are connected through the plurality of connecting pieces, two ends of each connecting piece are respectively fixed on the different chains, the chains located at the two ends are transmission chains, the outer surface of one side, close to the sizing wheels, of each transmission chain is respectively meshed with the peripheries of the two sizing wheels, and the inner surface of one side, close to the sizing wheels, of each transmission chain is respectively meshed with the peripheries of the auxiliary supporting rollers;

3. The film rolling apparatus according to claim 2, wherein: each the pitch of chain is the same, is located two between the driving chain the chain is the supporting chain, the supporting chain is a plurality of, each supporting chain is last to be close to the internal surface of sizing wheel one side all with auxiliary support roller periphery meshing.

4. The film rolling apparatus according to claim 2, wherein: the inner surface of each chain, close to the sizing wheel, is meshed with the periphery of each transmission part, each chain comprises a plurality of chain link groups, the chain link groups are the same in length, adjacent chain link groups are rotatably connected through chain link pins, the adjacent chain link groups located on the same horizontal position are fixed through the connecting piece, and two ends of the connecting piece are respectively fixed on the two adjacent chain link groups on the same horizontal position.

5. The film rolling apparatus according to claim 2, wherein: the two adjacent in vertical direction still be fixed with a plurality of support bands between the connecting piece, the both ends of supporting the area bond respectively adjacent two on the connecting piece, and adjacent two on the different horizontal position connecting piece group is constituteed to the connecting piece, and is different support bands between the connecting piece group sets up in a staggered way.

6. The film rolling apparatus according to claim 2, wherein: the driving transmission part is a driving roller, the driven transmission part is a driven roller, the driving roller is one, and the driven rollers are multiple.

7. The film rolling apparatus according to claim 3, wherein: a plurality of rails are further arranged between the two side plates, the rails are fixed on the fixed beam, the positions of the rails correspond to the positions of the supporting chains respectively, and the rails are used for limiting the supporting chains in the axial direction and the radial direction of the film roll.

8. The film rolling apparatus according to claim 3, wherein: the auxiliary supporting roller comprises a rotating shaft and a plurality of supporting chain wheels, the two ends of the rotating shaft are rotatably installed on the side plates through bearings respectively, the supporting chain wheels are fixedly sleeved on the periphery of the rotating shaft and correspond to the supporting chains in position one to one, and the periphery of the supporting chain wheels can be meshed with the periphery of the supporting chains.

9. The film rolling apparatus according to claim 1, wherein: still include two and prevent the winding board, two prevent that the winding board is fixed respectively two on the curb plate inside wall, and two prevent that the winding board all is located two between the curb plate, two prevent being equipped with the breach on the winding board, the shape of breach with the sizing wheel periphery with packing belt tip periphery shape is unanimous, just keep away from on the sizing wheel a lateral wall of curb plate does not bulge prevent keeping away from on the winding board one side of curb plate.

10. The film rolling apparatus according to claim 1, wherein: each the position that corresponds on the curb plate the sizing wheel all is fixed with the fixing base, the axle of sizing wheel stretch into to in the fixing base, and with the fixing base rotates to be connected.