A film roll handling device

Abstract

The application discloses a film roll carrying device, which controls the walking direction through a first wheel structure and a second wheel structure; when the carrying trolley needs to move in the front-back direction, the first wheel structure drives the carrying trolley to move forward or backward; when the carrying trolley needs to turn, the jacking mechanism drives the first driving wheel assembly to descend, after the first driving wheel assembly contacts the ground, the jacking mechanism continues to jack up the chassis to make the second wheel structure separate from the ground, then the second wheel structure drives the carrying trolley to move left or right, thereby making the carrying trolley be able to move in multiple directions, greatly improving the moving flexibility and better realizing the carrying of the film roll. In addition, the distance between the two roll carrying tables can be controlled under the control of the traction structure, so that the film rolls with different shaft lengths can be supported by the two roll carrying tables, and the applicability is high.

Description

TECHNICAL FIELD

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

[0002] After the film roll is produced, it needs to be conveyed to a designated place for storage. Since there are many types of film rolls, the shaft lengths of different types of film rolls differ. However, the film roll bearing mechanism on the existing conveying device can only carry film rolls with a specific shaft length, which has poor applicability and requires time-consuming replacement of the appropriate film roll bearing mechanism. In addition, the existing conveying device can only realize straight-line back-and-forth conveying, and the conveying device cannot change the moving direction during conveying, which has a single moving direction and cannot complete complex moving routes in the workshop, thereby affecting the conveying efficiency.

[0003] Therefore, the prior art still needs to be improved and enhanced. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application aims to provide a film roll conveying device, which aims to at least solve one of the above technical problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A film roll conveying device, comprising a chassis, a first wheel structure and a second wheel structure arranged on the chassis, the first wheel structure being used to drive the chassis to move in the transverse direction, and the second wheel structure being used to drive the chassis to move in the longitudinal direction; the first wheel structure comprises two groups of symmetrical lifting mechanisms and a first driving wheel assembly arranged below the lifting mechanisms, the lifting mechanisms being used to drive the first driving wheel assembly to descend, so that the first driving wheel assembly contacts the ground and the second wheel structure is separated from the ground; the chassis is provided with two symmetrical load roll tables, and the two load roll tables are used to support one end of the film roll respectively, the load roll tables being in sliding connection with the chassis, and the two load roll tables being capable of moving closer to or farther away from each other under the drive of the traction structure.

[0007] As a further improvement of the above technical scheme, the lifting mechanism comprises a bracket fixed on the chassis, a hydraulic cylinder arranged on the top of the bracket and facing downward, and a hydraulic station used to supply oil to the hydraulic cylinder, the first driving wheel assembly being arranged in the bracket and connected with the end of the piston rod of the hydraulic cylinder.

[0008] As a further improvement of the above technical scheme, the bracket comprises two side plates and two L-shaped blocks arranged symmetrically on the top of the side plates, the hydraulic station being arranged between the two L-shaped blocks, and the L-shaped block comprising a flat plate part and a vertical plate part, one hydraulic cylinder being arranged on each flat plate part, and the piston rod of the hydraulic cylinder penetrating through the flat plate part.

[0009] As a further improvement of the above technical solution, the first driving wheel assembly comprises a first housing, a first driving motor fixed on the first housing, a first wheel and a second wheel rotatably arranged in the first housing, a first driving sprocket is sleeved on the main shaft of the first driving motor, a first driven sprocket coaxial with the first wheel is arranged on the first wheel, and a second driven sprocket coaxial with the second wheel is arranged on the second wheel, and the first driven sprocket, the second driven sprocket and the first driving sprocket are connected by a first synchronous belt.

[0010] As a further improvement of the above technical solution, a guide structure is arranged on the bracket, the guide structure comprises a guide plate vertically fixed on the top of the first housing, a first guide rail arranged on the guide plate and extending vertically, and a first sliding block arranged on the vertical plate of the L-shaped block, and the first sliding block is in sliding connection with the first guide rail.

[0011] As a further improvement of the above technical solution, the second wheel structure comprises two groups of second driving wheel assemblies symmetrically arranged on both sides of the chassis, each group of second driving wheel assemblies comprises a second housing, a second driving motor fixed on the chassis, a third wheel and a fourth wheel rotatably arranged on the chassis, a second driving sprocket is sleeved on the main shaft of the second driving motor, a third driven sprocket coaxial with the third wheel is arranged on the third wheel, and a fourth driven sprocket coaxial with the fourth wheel is arranged on the fourth wheel, and the third driven sprocket, the fourth driven sprocket and the second driving sprocket are connected by a second synchronous belt.

[0012] As a further improvement of the above technical solution, each roll loading table comprises a bottom plate, a vertical plate arranged on the bottom plate, and a support block arranged on the top of the vertical plate, and a V-shaped groove is arranged in the center of the top of the support block.

[0013] As a further improvement of the above technical solution, a notch is arranged on the top of the vertical plate, the bottom wall of the notch is upwardly protruded to form a transversely extending guide strip, the bottom of the support block is provided with an inverted U-shaped socket which is inserted with the guide strip, the support block can slide between the side walls of the notch and is locked on the guide strip by a locking screw, the two sides of the notch form limiting arms, the support block is arranged between the two limiting arms, the two limiting arms are connected by a transversely extending scale, the scale is provided with a scale, the support block is provided with an avoidance slot for the scale and an indicating line pointing to the scale.

[0014] As a further improvement of the above technical solution, the bottom plate is provided with two second guide rails parallel to each other and extending in the left-right direction, the bottom of the bottom plate is connected with the corresponding second guide rail through a second sliding block, and a limiting column is arranged at the end of the second guide rail on the bottom plate; the traction structure comprises a synchronous belt linear module, a traction block and a connecting rod, the traction block is arranged on the sliding table of the synchronous belt linear module, and the traction block is connected with the roll carrying table through the connecting rod.

[0015] As a further improvement of the above technical solution, the bottom plate is provided with two second guide rails parallel to each other and extending in the left-right direction, the bottom of the bottom plate is connected with the corresponding second guide rail through a second sliding block, and a limiting column is arranged at the end of the second guide rail on the bottom plate; the traction structure comprises a synchronous belt linear module, a traction block and a connecting rod, the traction block is arranged on the sliding table of the synchronous belt linear module, and the traction block is connected with the roll carrying table through the connecting rod.

[0016] Beneficial effects:

[0017] Compared with the prior art, the film roll carrying device provided by the application controls the walking direction through the first wheel structure and the second wheel structure; when the carrying trolley needs to move in the front-back direction, the first wheel structure drives the carrying trolley to move forward or backward; when the carrying trolley needs to turn, the jacking mechanism drives the first driving wheel assembly to descend, after the first driving wheel assembly contacts the ground, the jacking mechanism continues to jack up the bottom plate, so that the second wheel structure is separated from the ground, and then the second wheel structure drives the carrying trolley to move left or right, thereby enabling the carrying trolley to move in multiple directions, greatly improving the moving flexibility and better achieving the carrying of the film roll. In addition, the distance between the two roll carrying tables can be controlled under the control of the traction structure, so that film rolls with different shaft lengths can be supported by the two roll carrying tables, and the applicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of the film roll carrying device provided by the application.

[0019] Figure 2 A front view of the film roll carrying device provided by the application.

[0020] Figure 3 A Figure 1 A local enlarged view of area A in the middle.

[0021] Figure 4 A Figure 1 A local enlarged view of area B in the middle.

[0022] Figure 5 A Figure 1 A local enlarged view of area C in the middle.

[0023] Figure 6 A structure diagram of the second driving wheel assembly.

[0024] Figure 7Fig. 1 is a schematic view of the connection between the traction mechanism and the load table.

[0025] Main element symbol explanation: 1 - chassis, 2 - first wheel structure, 21 - jacking mechanism, 211 - bracket, 2111 - side plate, 2112 - L-shaped plate, 212 - hydraulic cylinder, 213 - hydraulic station, 22 - first driving wheel assembly, 221 - first wheel, 222 - first housing, 4 - second wheel structure, 41 - second housing, 42 - second driving motor, 43 - third wheel, 44 - fourth wheel, 45 - second driving synchronous wheel, 46 - third driven synchronous wheel, 47 - fourth driven synchronous wheel, 48 - second synchronous belt, 49 - second tensioning wheel, 401 - guide plate, 402 - first guide rail, 403 - first sliding block, 51 - distribution box, 52 - plug, 53 - socket, 7 - load table, 71 - bottom plate, 72 - vertical plate, 73 - supporting block, 731 - avoiding groove, 74 - V-shaped groove, 75 - notch, 76 - guide strip, 77 - socket, 78 - limiting arm, 79 - scale, 791 - indicating line, 8 - traction mechanism, 81 - traction block, 82 - connecting rod, 91 - second guide rail, 92 - second sliding block, 93 - limiting column. DETAILED DESCRIPTION

[0026] The present application provides a film roll carrying device. To make the purpose, technical solutions and effects of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0027] Please refer to Figures 1-7 The present application provides a film roll carrying device, which comprises a chassis 1, a first wheel structure 2 and a second wheel structure 4 arranged on the chassis 1. The first wheel structure 2 is used to drive the chassis 1 to move in the transverse direction, and the second wheel structure 4 is used to drive the chassis 1 to move in the longitudinal direction. The first wheel structure 2 comprises two groups of symmetrically arranged jacking mechanisms 21 and a first driving wheel assembly 22 arranged below the jacking mechanisms 21. The jacking mechanisms 21 are used to drive the first driving wheel assembly 22 to descend, so that the first driving wheel assembly 22 contacts the ground and the second wheel structure 4 is separated from the ground. The chassis 1 is provided with two symmetrically arranged load tables 7, which are respectively used to support one end of a film roll. The load tables 7 are in sliding connection with the chassis 1, and the two load tables 7 can move closer to or farther away from each other under the drive of a traction mechanism 8. The first wheel structure 2, the second wheel structure 4 and the traction mechanism are all controlled by a control system.

[0028] Each type of film roll corresponds to an axle length size, the control system pre-records the axle length size of each type of film roll, and sets the control program of the working distance of the two roll loading tables 7 according to the axle length size of each type. In the initial state, the first wheel structure 2 is away from the ground contact, and the second wheel structure 4 is in contact with the ground. The two roll loading tables 7 are located at the two ends of the chassis 1 respectively. The staff selects the corresponding control program according to the required film roll, and the control system controls the traction structure 8 to pull the two roll loading tables 7 to move synchronously and approach each other until the distance between the two roll loading tables 7 is the set distance, and then stop moving. The manipulator carries the film roll to the film roll carrying device, and the two ends of the film roll are supported by the top of the corresponding roll loading table 7, and the film part of the film roll is located between the two roll loading tables 7, so that it can adapt to the support of film rolls with different axle lengths, and has high applicability.

[0029] When the film roll carrying device needs to move in the front-back direction, the control system controls the first wheel structure 2 to move, so that the film roll carrying device can move forward or backward. When the film roll carrying device needs to turn, the jacking mechanism 21 drives the first driving wheel assembly 22 to descend, and after the first driving wheel assembly 22 is in contact with the ground, the jacking mechanism 21 continues to jack up the chassis 1 to rise, so that the second wheel structure 4 is separated from the ground. Then the control system controls the second wheel structure 4 to move, so that the film roll carrying device can move left or right, thereby enabling the film roll carrying device to move in multiple directions, greatly improving the moving flexibility of the film roll carrying device, and better achieving the carrying of the film roll. If the jacking mechanism 21 is reset, the jacking mechanism 21 drives the first driving wheel assembly 22 to rise, so that the first driving wheel assembly 22 is higher than the second wheel structure 4, so that the first wheel structure 2 is in contact with the ground again.

[0030] In actual application, in order to ensure the accuracy of the moving direction of the film roll carrying device, a first track extending left and right and a second track extending front and back are provided on the ground, and the first track and the second track are perpendicular to each other. The first wheel structure 2 walks under the guidance of the first track, and the second wheel structure 4 walks under the guidance of the second track.

[0031] Specifically, please refer to Figure 3 The jacking mechanism 21 includes a bracket 211 fixed on the chassis 1, a hydraulic cylinder 212 arranged at the top of the bracket 211 and arranged downward, and a hydraulic station 213 for supplying oil to the hydraulic cylinder 212. The first driving wheel assembly 22 is arranged in the bracket 211 and connected with the end of the piston rod of the hydraulic cylinder 212. In the initial state, the piston rod of the hydraulic cylinder 212 is in the retracted state, and the first wheel structure 2 is located in the bracket 211. The hydraulic station 213 can provide a circulating oil path for the hydraulic cylinder 212, so as to avoid the influence of the external oil pipe on the movement of the film roll carrying device.

[0032] Further, the support 211 comprises two side plates 2111, two L-shaped blocks symmetrically arranged on the top of the side plates 2111, and the hydraulic station 213 is arranged between the two L-shaped blocks. Each L-shaped block comprises a flat plate part and a vertical plate part 72, and a hydraulic cylinder 212 is arranged on each flat plate part, and the piston rod of the hydraulic cylinder 212 penetrates the flat plate part. In this way, the first wheel structure 2 can be compactly reset between the two side plates 2111 in a non-working state.

[0033] Preferably, a guide structure is arranged on the support 211, which comprises a guide plate 401 vertically fixed on the top of the first housing 222, a first guide rail 402 arranged on the guide plate 401 and extending vertically, and a first sliding block 403 arranged on the vertical plate part 72 of the L-shaped block and in sliding connection with the first guide rail 402. The first guide rail 402 can guide the movement of the guide plate, ensure that the first wheel structure 2 can only move vertically, and limit the movement of the guide plate to avoid deformation of the piston rod of the hydraulic cylinder 212 due to tangential force.

[0034] In the embodiment, two sets of hydraulic cylinders 212 and guide structures are arranged, and the two sets of hydraulic cylinders 212 and guide structures are symmetrically arranged on the two sides of the hydraulic station 213, thereby improving the reliability of the jacking.

[0035] Specifically, the first driving wheel assembly 22 comprises a first housing 222, a first driving motor fixed on the first housing 222, a first wheel 221 and a second wheel rotatably arranged in the first housing 222, and the rotation axes of the first wheel 221 and the second wheel extend in the front-rear direction, so that the first wheel 221 and the second wheel can only drive the film roll carrying device to move in the left-right direction. A first driving synchronous wheel is sleeved on the main shaft of the first driving motor, a first driven synchronous wheel coaxial with the first wheel 221 is arranged on the first wheel 221, and a second driven synchronous wheel coaxial with the second wheel is arranged on the second wheel. The first driven synchronous wheel, the second driven synchronous wheel, and the first driving synchronous wheel are in transmission connection through a first synchronous belt. When the control system controls the first driving motor to rotate forward, the first driving motor drives the first driven synchronous wheel and the second driven synchronous wheel to move synchronously through the transmission of the first driving synchronous wheel and the first synchronous belt, so that the first wheel 221 and the second wheel move synchronously to the left. Conversely, when the control system controls the first driving motor to rotate reversely, the first driving motor drives the first driven synchronous wheel and the second driven synchronous wheel to move synchronously through the transmission of the first driving synchronous wheel and the first synchronous belt, so that the first wheel 221 and the second wheel move synchronously to the right.

[0036] Further, the first housing 222 is provided with a first tensioning wheel for tensioning the first synchronous belt, avoiding slippage of the first synchronous belt, and ensuring that the first synchronous belt can be driven in meshing with the first driven synchronous wheel and the second driven synchronous wheel.

[0037] Further, please refer to Figure 6 The second wheel structure 4 includes two groups of second driving wheel assemblies symmetrically arranged on both sides of the chassis 1. Each group of second driving wheel assemblies includes a second housing 41, a second driving motor 42 fixed on the chassis 1, a third wheel 43 and a fourth wheel 44 rotatably arranged on the chassis 1 in front and back. The rotation shafts of the third wheel 43 and the fourth wheel 44 extend in the left-right direction, so that the third wheel 43 and the fourth wheel 44 can only drive the film roll carrying device to move forward in the front-back direction. A second driving synchronous wheel 45 is sleeved on the main shaft of the second driving motor 42. A third driven synchronous wheel 46 coaxial with the third wheel 43 is arranged on the third wheel 43. A fourth driven synchronous wheel 47 coaxial with the fourth wheel 44 is arranged on the fourth wheel 44. The third driven synchronous wheel 46, the fourth driven synchronous wheel 47, and the second driving synchronous wheel 45 are drivingly connected through a second synchronous belt 48. When the control system controls the second driving motor 42 to rotate forward, the second driving motor 42 drives the third driven synchronous wheel 46 and the fourth driven synchronous wheel 47 to move synchronously through the transmission of the second driving synchronous wheel 45 and the second synchronous belt 48, so that the third wheel 43 and the fourth wheel 44 move forward synchronously. Conversely, when the control system controls the second driving motor 42 to rotate reversely, the second driving motor 42 drives the third driven synchronous wheel 46 and the fourth driven synchronous wheel 47 to move synchronously through the transmission of the second driving synchronous wheel 45 and the second synchronous belt 48, so that the third wheel 43 and the fourth wheel 44 move reversely synchronously.

[0038] Similarly, the chassis 1 is provided with a second tensioning wheel 49 for tensioning the second synchronous belt 48, avoiding slippage of the second synchronous belt 48, and ensuring that the second synchronous belt 48 can be driven in meshing with the third driven synchronous wheel 46 and the fourth driven synchronous wheel 47.

[0039] Specifically, each roll carrying table 7 includes a bottom plate 71, a vertical plate 72 arranged on the bottom plate 71, and a support block 73 arranged on the top of the vertical plate 72. A V-shaped groove 74 is formed in the top of the support block 73. The end shaft of the film roll is inserted into the V-shaped groove in the support block 73 to achieve positioning, without the need for an additional positioning mechanism to assist positioning. Even if the film roll moves during the material conveying process, the film roll will not move.

[0040] Further, the top of the vertical plate 72 is provided with a notch 75, the bottom wall of the notch 75 is upwardly protruded to form a transversely extending guide strip 76, the bottom of the support block 73 is provided with a reverse U-shaped socket 77 which is inserted with the guide strip 76, the support block 73 can slide between the side walls of the notch 75 and is locked on the guide strip 76 by locking screws. Loosing the locking screws can fine-tune the position of each support block 73, on the one hand, to ensure that the two support blocks 73 are symmetrically arranged to ensure the coaxiality of the film roll placement, on the other hand, to adapt to the position of the mechanical hand to pick and place the film roll, better coordinating the work between the mechanisms.

[0041] Further, the two sides of the notch 75 form a limiting arm 78, the support block 73 is arranged between the two limiting arms 78, the two limiting arms 78 are connected by a transversely extending scale 79, the scale 79 is provided with a scale, the support block 73 is provided with an avoidance slot 731 for the scale 79 to be embedded and is provided with an indication line 791 pointing to the scale of the scale 79, the staff can more intuitively adjust and record the position of the support block 73 by reading the scale through the indication line 791, to ensure the symmetry of the two support blocks 73, and to facilitate the adjustment of the support block 73 to the central position between the two limiting arms 78.

[0042] Preferably, referring to Figure 7 , the traction structure 8 includes a synchronous belt linear module (not shown in the figure), a traction block 81 and a connecting rod 82, the traction block 81 is arranged on the sliding table of the synchronous belt linear module, and the traction block 81 is connected with the roll loading table 7 through the connecting rod 82. Of course, the traction structure can also be selected from pneumatic push rod, electric push rod, hydraulic push rod, linear module, screw mechanism, etc., and its main effect is to provide a linear motion output end.

[0043] Preferably, the bottom plate 1 is provided with two second guide rails 91 which are parallel to each other and extend along the left-right direction, and the bottom of the bottom plate 71 is connected with the corresponding second guide rail 91 through a second sliding block 92, the roll loading table 7 moves smoothly under the guidance of the second guide rail 91 and the second sliding block 92, and has good stability.

[0044] Preferably, the bottom plate 1 is provided with a limiting column 93 located at the end of the second guide rail 91; the limiting column 93 limits the roll loading table 7 and prevents the second sliding block 92 at the bottom of the roll loading table 7 from disengaging from the second guide rail 91. It can be understood that when the bottom plate 1 contacts with the limiting column 93, the roll loading table 7 is at the limit point of movement.

[0045] The chassis 1 is provided with a power supply assembly for supplying power to the first wheel structure 2, the second wheel structure 4 and the traction structure, the power supply assembly comprising a power distribution box 51, a storage battery arranged in the power distribution box 51, a plug 52 electrically connected to the storage battery, and a socket 53 arranged on the ground and matched with the plug 52. The storage battery is a rechargeable storage battery, and is connected to the first driving wheel assembly, the second driving wheel assembly and the traction structure for power supply, so as to ensure power supply of the film roll carrying device when the film roll carrying device is walking or the roll carrying table 7 is moving, and to avoid interference of the cable line with the walking of the film roll carrying device. When the film roll carrying device works for a long time, the power consumption of the storage battery is relatively large, the film roll carrying device is moved to a charging point, the plug 52 is inserted into the socket 53, and the storage battery can be charged, so that energy saving and environmental protection are achieved.

[0046] Preferably, the chassis 1 and the second shell 41 are provided with first anti-collision strips 61 extending in the left-right direction on the front and back sides, and the second shell 41 is provided with a second anti-collision strip 62 extending in the front-back direction on one side. If the film roll carrying device collides with a walking object or a foreign object during walking, the first anti-collision strips 61 and the second anti-collision strip 62 can protect the chassis 1 to a certain extent and reduce damage caused by the collision.

[0047] Preferably, the second guide rail 91 is provided with a telescopic protective cover 10 for protecting the second guide rail 91, and the telescopic protective cover is located between the two roll carrying tables 7. The telescopic protective cover is an organ type protective cover, one end of the telescopic protective cover is connected to the bottom plate 71 through a connecting piece 101, and the other end is fixed on the chassis 1. The telescopic protective cover is folded and unfolded with the movement of the roll carrying table 7, so as to reduce the attachment of dust or foreign objects on the second guide rail 91 and affect the sliding of the second sliding block 92.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connected", "connecting" or "connection" should be construed in a broad sense and, for example, can mean fixedly connected, removably connected, or integrally connected; can mean mechanically connected, or electrically connected, or can mean in communication with each other; can mean directly connected, or indirectly connected via a medium, or can mean communicating with each other internally within two elements or the interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] It can be understood that for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present application, and all these changes or replacements shall fall within the protection scope of the present application.

Claims

1. A film roll transport device, characterized in that, The system includes a chassis, a first wheel structure and a second wheel structure mounted on the chassis. The first wheel structure drives the chassis to move laterally, and the second wheel structure drives the chassis to move longitudinally. The first wheel structure includes two symmetrically arranged lifting mechanisms and a first drive wheel assembly located below the lifting mechanisms. The lifting mechanisms drive the first drive wheel assembly to descend, bringing it into contact with the ground and disengaging the second wheel structure from the ground. The chassis has two symmetrically arranged roll-up platforms, each supporting one end of a film roll. The platforms are slidably connected to the chassis, and the platforms can be positioned within the traction structure. Driven to move closer or further apart; the lifting mechanism includes a bracket fixed to the chassis, a hydraulic cylinder mounted on top of the bracket and facing downwards, and a hydraulic station for supplying oil to the hydraulic cylinder. The first drive wheel assembly is located inside the bracket and connected to the piston rod end of the hydraulic cylinder. The bracket includes two side plates and two L-shaped blocks symmetrically arranged on the top of the side plates. The hydraulic station is located between the two L-shaped blocks. Each L-shaped block includes a flat plate and a vertical plate. A hydraulic cylinder is mounted on each flat plate, and the piston rod of the hydraulic cylinder passes through the flat plate. The first drive wheel assembly includes a first housing, a first drive motor fixed to the first housing, and a rotatable, front-to-back arrangement on the first housing. The first wheel and second wheel inside the housing are connected by a first driving synchronous pulley mounted on the main shaft of the first drive motor, a first driven synchronous pulley coaxial with the first wheel, and a second driven synchronous pulley coaxial with the second wheel. The first driven synchronous pulley, the second driven synchronous pulley, and the first driving synchronous pulley are connected by a first synchronous belt. The bracket is provided with a guide structure, which includes a guide plate vertically fixed to the top of the first housing, a first guide rail mounted on the guide plate and extending vertically, and a first slider mounted on the vertical plate of the L-shaped block. The first slider is slidably connected to the first guide rail. The second wheel structure includes two sets of symmetrical... The second drive wheel assemblies are located on both sides of the chassis. Each second drive wheel assembly includes a second housing, a second drive motor fixed on the chassis, and a third wheel and a fourth wheel that are rotatable and arranged front and rear on the chassis. A second active synchronous pulley is sleeved on the main shaft of the second drive motor. A third driven synchronous pulley is coaxially mounted on the third wheel, and a fourth driven synchronous pulley is coaxially mounted on the fourth wheel. The third driven synchronous pulley, the fourth driven synchronous pulley, and the second active synchronous pulley are connected by a second synchronous belt. Each loading platform includes a base plate, a vertical plate mounted on the base plate, and a support block mounted on the top of the vertical plate. A centrally located V-shaped groove is formed on the top of the support block.The top of the vertical plate has a notch, the bottom wall of which protrudes upward to form a laterally extending guide strip. The bottom of the support block has an inverted U-shaped socket that inserts into the guide strip. The support block can slide between the side walls of the notch and is locked onto the guide strip by a locking screw. Limiting arms are formed on both sides of the notch, and the support block is positioned between the two limiting arms. The two limiting arms are connected by a laterally extending scale with graduations. The support block has clearance grooves for the scale to be inserted and indicator lines pointing to the scale graduations. The chassis has two parallel second guide rails extending in the left-right direction. The bottom of the chassis is connected to the corresponding second guide rail via a second slider. The chassis has limiting posts located at the ends of the second guide rails. The traction structure includes a synchronous belt linear module, a traction block, and a connecting rod. The traction block is positioned on the slide of the synchronous belt linear module and is connected to the winding table via the connecting rod.

2. The film roll transport device according to claim 1, characterized in that, The chassis is equipped with a power supply assembly for supplying power to the first wheel structure, the second wheel structure, and the traction structure. The power supply assembly includes a distribution box, a battery installed in the distribution box, and a plug electrically connected to the battery.

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