A film winding and bagging device

Abstract

The present invention relates to the technical field of film roll packaging, and discloses a film roll bag receiving device. The film roll bag receiving device provided by the present invention lifts the film roll to a suitable height through a roll supporting device according to the diameter of the film roll, and then two walking bag grasping mechanisms synchronously receive the bag mouths at both ends of the tubular bag. The closing driving mechanism drives the transmission shaft to drive all the grippers to synchronously close inward. The bag sucking structure on the articulated link grabs the bag mouth through vacuum negative pressure. As all the grippers gradually close inward, the bag mouth of the tubular bag shrinks into a mass. When the grippers are closed to the smallest size, the overall diameter formed by all the articulated link combinations is smaller than the diameter of the core. At this time, the walking mechanism drives the grippers to move towards the film roll direction, so as to automatically stuff the bag mouth grasped by the grippers into the core of the film roll, which is applicable to the automatic bag receiving operation of film rolls of any size, with high bag receiving efficiency and labor saving.

Description

Technical Field

[0001] The invention relates to the technical field of film roll packaging, and in particular to a film roll bagging device. Background Art

[0002] After the cylindrical plastic film roll is produced, it needs to be transported to various places for sale. In order to protect the integrity of the film roll during transportation, reduce wear and tear, and increase the transportation quantity, the film roll needs to be packaged. The existing film roll packaging method is mainly to manually put a tube bag (a cylindrical plastic bag with openings at both ends) on the periphery of the film roll, and then manually insert the part of the tube bag located at the two ends of the film roll into the roll core of the film roll, so as to package and protect the ends of the film roll. Since the manual packaging of film rolls is inefficient, the operation is cumbersome, and at least two workers are required to operate, in order to improve the efficiency of film roll packaging, the bagging and bag collecting processes need to be automated. In order to connect with the automatic bagging device for film rolls, it is urgent to develop a device that can automatically collect bags for film rolls. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a film roll bag taking-up device which can automatically insert the two ends of a tubular bag into a film roll core.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A film roll bag collecting device comprises a roll supporting device for lifting the film roll and two walking bag grabbing mechanisms respectively arranged on both sides of the roll supporting device, the walking bag grabbing mechanism comprises a frame, a sleeve horizontally arranged on the frame, a plurality of grippers arranged in a circular array on the periphery of the sleeve, a transmission shaft arranged in the sleeve, a folding drive mechanism arranged on the frame, and a walking mechanism for driving the frame to approach or move away from the roll supporting device; the folding drive mechanism is used to drive the transmission shaft to move axially, so that the transmission shaft drives all grippers to fold inwardly or open outwardly synchronously; the grippers comprise a rocker arm and an articulated connecting rod, one end of each rocker arm is rotatably connected to the sleeve through an adapter assembly, and the other end is hinged with a articulated connecting rod, and the angle between the rocker arm and the articulated connecting rod is limited by an elastic structure, and in a natural state, all articulated connecting rods face the roll supporting device and a bag suction structure for sucking the tube bag is fixed on the inner side of the articulated connecting rod.

[0006] As a further improvement of the above technical solution, a first transmission tooth is provided at the end of the rocker arm close to the transmission shaft, and a second transmission tooth extending along its axial direction is provided on the transmission shaft. The first transmission tooth and the second transmission tooth are engaged for transmission, and an avoidance opening for avoiding the rocker arm is provided on the sleeve.

[0007] As a further improvement of the above technical solution, the adapter assembly includes a plurality of protrusions arranged in a circular array on the sleeve, a swing interface for the swing rod to pass through is formed between two adjacent protrusions, and the two protrusions are rotatably connected to the corresponding ends of the swing rod.

[0008] As a further improvement of the above technical solution, the suction bag structure includes at least one elongated vacuum suction cup.

[0009] As a further improvement of the above technical solution, the folding drive mechanism includes an electric cylinder fixed on the frame, and the output end of the electric cylinder is connected to the end of the transmission shaft.

[0010] As a further improvement of the above technical solution, the elastic structure includes a tension spring, one end of which is connected to the rocker arm, and the other end of which is connected to the joint connecting rod.

[0011] As a further improvement of the above technical solution, the roll supporting device includes a base frame, a plurality of lifting mechanisms arranged on the base frame, a central support block, and at least one group of symmetrical support block structures arranged on the left and right sides of the central support block; the lifting mechanism can drive the central support block and the corresponding symmetrical support block structures to reciprocate in the up and down directions.

[0012] As a further improvement of the above technical solution, a depression extending in the left-right direction is provided in the middle of the central support block.

[0013] As a further improvement of the above technical solution, the walking mechanism includes a frame arranged under the frame, walking wheels that drive the frame to move, and a walking drive mechanism; at least two guide rails extending in the left and right directions are provided on the ground, and the walking wheels are connected to the corresponding guide rails.

[0014] As a further improvement of the above technical solution, the frame is provided with four walking wheels, the four walking wheels are opposite to each other in pairs, and the opposite walking wheels are connected by a connecting shaft; the walking drive mechanism includes a walking drive motor, a first gear arranged on the main shaft of the walking drive motor and a second gear sleeved on the connecting shaft, and the first gear and the second gear are meshed for transmission.

[0015] Beneficial effects:

[0016] Compared with the prior art, the film roll bagging device provided by the present invention raises the film roll to an appropriate height through the roll supporting device according to the diameter of the film roll, and then two walking bag grasping mechanisms synchronously receive the bag mouths at both ends of the tubular bag. The closing driving mechanism drives the transmission shaft to drive all the grippers to close synchronously towards the inside. The bag sucking structure on the articulated link grabs the bag mouth through vacuum negative pressure. As all the grippers gradually close towards the inside, the bag mouth of the tubular bag shrinks into a mass. When the grippers are closed to the minimum, the overall diameter formed by all the articulated link combinations is smaller than the diameter of the core; at this time, the walking mechanism drives the grippers to move towards the film roll direction, so as to automatically stuff the bag mouth grabbed by the grippers into the core of the film roll. Therefore, the film roll bagging device provided by the present invention can be applicable to the automatic bagging operation of film rolls of any size, has high bagging efficiency, saves labor, and can also be connected with the automatic bagging device for film rolls, further improving the automation level of film roll packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of the film roll bagging device provided by the present invention.

[0018] Figure 2 It is a transmission schematic diagram of the swing rod and the transmission shaft.

[0019] Figure 3 It is a structural schematic diagram of the roll supporting device provided by the present invention.

[0020] Figure 4 It is a bottom view of the walking mechanism provided by the present invention.

[0021] MAIN ELEMENT SYMBOL DESCRIPTION: 1 - roll supporting device, 11 - chassis, 12 - lifting mechanism, 13 - central supporting block, 14 - symmetric supporting block structure, 141 - U-shaped bracket, 142 - auxiliary supporting block, 143 - depression, 2 - walking bag grasping mechanism, 21 - frame, 22 - sleeve, 23 - gripper, 231 - swing rod, 232 - articulated link, 24 - transmission shaft, 25 - closing driving mechanism, 26 - elastic structure, 271 - first transmission gear, 272 - second transmission gear, 220 - protrusion, 28 - walking mechanism, 281 - vehicle frame, 282 - walking wheel, 283 - first gear, 284 - second gear, 3 - bag sucking structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention provides a film roll bagging device. To make the purpose, technical solution and effect of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the protection scope of the present invention.

[0023] Please refer to Figures 1 - 4The present invention provides a film roll bagging device, comprising a roll supporting device 1 for lifting a film roll and two walking bag grabbing mechanisms 2 respectively arranged on both sides of the roll supporting device 1, wherein the walking bag grabbing mechanism 2 comprises a frame 21, a sleeve 22 horizontally arranged on the frame 21, a plurality of grippers 23 arranged in a circumferential array on the periphery of the sleeve 22, a transmission shaft 24 arranged in the sleeve 22, a folding driving mechanism 25 arranged on the frame 21, and a walking mechanism 28 for driving the frame 21 to approach or move away from the roll supporting device 1; the folding driving mechanism 25 is used to drive The transmission shaft 24 moves axially, so that the transmission shaft 24 drives all the grippers 23 to be synchronously retracted inward or opened outward; the grippers 23 include a swing rod 231 and a joint link 232, one end of each swing rod 231 is rotatably connected to the sleeve 22 through an adapter assembly, and the other end is hinged with a joint link 232, and the angle between the swing rod 231 and the joint link 232 is limited by an elastic structure 26. In a natural state, all the joint links 232 face the roll-supporting device 1 and a bag suction structure 3 for sucking the tube bag is fixed on the inner side of the joint link 232. The inner space of all the grippers 23 on each sleeve 22 forms a bag grabbing area 230.

[0024] After the film roll 4 is bagged by the film roll automatic bagging device, the extraction robot moves the film roll to the roll supporting device 1. The bag openings 41 at the front and rear ends of the bag need to be stored in the roll core 40. The roll core 40 of the film roll is a hollow structure. The roll supporting device 1 lifts the film roll 4 to a suitable height according to the diameter of the film roll 4 to ensure that the axis of the film roll 4 coincides with the axis of the sleeve 22. Then, the two walking bag grabbing mechanisms 2 work synchronously and move toward the two ends of the film roll 4 respectively. When the bag openings at the front and rear ends of the bag enter the bag grabbing area 2 formed by the corresponding grippers 23, After 30, the folding drive mechanism 25 drives the transmission shaft 24 to drive all the grippers 23 to fold inward synchronously, and the bag suction structure 3 on the joint connecting rod 232 grabs the bag opening through vacuum negative pressure. As all the grippers 23 gradually fold inward, the bag opening of the tube bag shrinks to form a ball. When the grippers are folded to the minimum, the overall diameter formed by the combination of all the joint connecting rods 232 is smaller than the diameter of the roll core 40; at this time, the walking mechanism 28 drives the grippers 23 to move toward the film roll 4, so that the bag opening 41 grabbed by the grippers 23 is automatically stuffed into the roll core 40 of the film roll. Because the film roll bagging device provided by the present invention can be applied to the automatic bagging operation of film rolls of any size, the bagging efficiency is high, labor is saved, and it can be connected with the automatic bagging device of the film roll, further improving the automation level of film roll packaging.

[0025] Specifically, the end of the swing rod 231 close to the transmission shaft 24 is provided with a first transmission tooth 271, and the transmission shaft 24 is provided with a second transmission tooth 272 extending along the axial direction thereof. The first transmission tooth 271 and the second transmission tooth 272 are meshed for transmission, and the sleeve 22 is provided with an escape opening for avoiding the swing rod 231. The driving mechanism drives the transmission shaft 24 to move axially, and through the cooperation of the second transmission tooth 272 and the first transmission tooth 271, all the swing rods 231 are driven to be retracted inwardly and opened outwardly synchronously. The linkage mechanism is simple in setting, and the linkage effect of opening or retracting multiple grippers 23 is good.

[0026] Furthermore, since the wall thickness of the sleeve is relatively thin, it is necessary to use an adapter assembly to connect it to the rocker arm. The adapter assembly includes a plurality of protrusions 220 arranged in a circular array on the sleeve 22. The protrusions 220 are integrally formed with the sleeve 22 or fixed by welding. A rocker interface for the rocker arm 231 to pass through is formed between two adjacent protrusions 220, and the two protrusions 220 are rotatably connected to the corresponding ends of the rocker arm 231.

[0027] In this embodiment, the suction bag structure includes at least one long vacuum suction cup 3, which is small and flexible and can be well matched with the joint connecting rod 232.

[0028] The folding drive mechanism 25 includes an electric cylinder fixed on the frame 21, and the output end of the electric cylinder is connected to the end of the transmission shaft 24. The electric cylinder has the advantage of precise control, and can accurately control the opening range of the gripper 23, so as to better cooperate with the bag suction structure to suck the bag mouth of the tube bag.

[0029] Preferably, the elastic structure 26 includes a tension spring, one end of which is connected to the swing rod 231, and the other end is connected to the joint connecting rod 232. The tension spring limits the swing amplitude of the connecting rod relative to the swing rod 231, so that the joint connecting rod 232 can swing adaptively relative to the swing rod 231 when stuffing the bag, so as to better grasp the bag opening, and prevent the joint connecting rod 232 from over-expanding and interfering with the winding core 40.

[0030] Specifically, the roll supporting device 1 includes a chassis 11, a plurality of lifting mechanisms 12 arranged on the chassis 11, a central supporting block 13, and at least one set of symmetric supporting block structures 14 arranged on the left and right sides of the central supporting block 13; the lifting mechanism 12 can drive the central supporting block 13 and the corresponding symmetric supporting block structures 14 to reciprocate in the up and down direction. Each of the symmetric supporting block structures 14 includes a U-shaped bracket 141 connected to the lifting mechanism 12, and auxiliary supporting blocks 142 symmetrically arranged at both ends of the U-shaped bracket 141. The number of symmetric supporting block structures 14 can be selected according to the size of the film roll, so as to adapt to film rolls of various different specifications and sizes, and better assist the central supporting block 13 to support the film roll. It should be understood that the diameters of film rolls of different specifications and sizes may vary. Since the axis height of the sleeve 22 is constant, the axis height of the film roll can be adjusted by the lifting mechanism 12 to make the axis of the film roll coincide with the axis of the sleeve 22, ensuring the smooth docking of the walking bag grabbing mechanism 2 and the film roll.

[0031] Further, a recess 143 extending in the left and right direction is provided in the middle of the central supporting block 13 and the auxiliary supporting block 142. This structure is simple and convenient to set. Through the setting of the recess 143, on the one hand, the film roll can be positioned and centered, and on the other hand, the film roll can be prevented from easily rolling and falling.

[0032] In some embodiments, the lifting mechanism 12 is an electric push rod.

[0033] In this embodiment, the walking mechanism 28 includes a vehicle frame 281 arranged below the frame 21, walking wheels 282 driving the vehicle frame 281 to move, and a walking driving mechanism. The walking driving mechanism drives the walking wheels 282 and the vehicle frame 281 to approach or move away from the roll supporting device 1; at least two guide rails extending in the left and right direction are provided on the ground, and the walking wheels 282 are connected to the corresponding guide rails. Under the guiding action of the guide rails, the walking path of the walking wheels 282 is ensured to be accurate and no derailment will occur.

[0034] Further, four walking wheels 282 are provided on the vehicle frame 281, and the four walking wheels 282 are pairwise opposite, and the opposite walking wheels 282 are connected by a connecting shaft; the walking driving mechanism includes a walking driving motor (not visible in the figure), a first gear 283 arranged on the main shaft of the walking driving motor, and a second gear 284 sleeved on the connecting shaft. The first gear 283 and the second gear 284 are meshed and driven. Driven by the walking driving motor, the first gear 283 and the second gear 284 are meshed and driven, so as to drive the walking wheels 282 on the connecting shaft to walk at a set speed and cooperate with the gripper 23 to collect the bags.

[0035] In other embodiments, the walking mechanism 28 can also be a linear module, a lead screw mechanism, or an electric push rod, and its main effect is to provide an output end for linear motion.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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. Therefore, it should not be construed as a limitation to the present invention.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" 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, an electrical connection or a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A film winding and bagging device, characterized in that, The invention comprises a roll-supporting device for lifting the film roll and two walking and grabbing bag mechanisms respectively arranged on both sides of the roll-supporting device, wherein the walking and grabbing bag mechanism comprises a frame, a sleeve horizontally arranged on the frame, a plurality of grippers arranged in a circumferential array on the periphery of the sleeve, a transmission shaft arranged in the sleeve, a folding driving mechanism arranged on the frame, and a walking mechanism for driving the frame to approach or move away from the roll-supporting device; the folding driving mechanism is used to drive the transmission shaft to move axially so that the transmission shaft drives all grippers to fold inwardly or open outwardly synchronously; the grippers comprise a swing rod and a joint connecting rod, one end of each swing rod is rotatably connected to the sleeve through an adapter assembly, and the other end is connected to the sleeve through an adapter assembly. The end is hinged with a joint connecting rod, and the angle between the rocker arm and the joint connecting rod is limited by an elastic structure. In a natural state, all the joint connecting rods face the roll-supporting device and a bag suction structure for sucking the tube bag is fixed on the inner side of the joint connecting rod; a first transmission tooth is provided at the end of the rocker arm close to the transmission shaft, and a second transmission tooth extending along its axial direction is provided on the transmission shaft, the first transmission tooth and the second transmission tooth are meshed for transmission, and an avoidance opening for avoiding the rocker arm is provided on the sleeve; the elastic structure includes a tension spring, one end of the tension spring is connected to the rocker arm, and the other end is connected to the joint connecting rod; the bag suction structure includes at least one long vacuum suction cup.

2. The film roll bag collecting device according to claim 1, characterized in that, The adapter assembly includes a plurality of protrusions arranged in a circular array on the sleeve, a swing interface for the swing rod to pass through is formed between two adjacent protrusions, and the two protrusions are rotatably connected to the corresponding ends of the swing rod.

3. The film roll bag collecting device according to claim 1, characterized in that, The folding drive mechanism comprises an electric cylinder fixed on a frame, and an output end of the electric cylinder is connected to the end of a transmission shaft.

4. The film roll bag collecting device according to claim 1, characterized in that, The roll supporting device includes a base frame, a plurality of lifting mechanisms arranged on the base frame, a central supporting block, and at least one group of symmetrical supporting block structures arranged on the left and right sides of the central supporting block; the lifting mechanism can drive the central supporting block and the corresponding symmetrical supporting block structures to reciprocate in the up and down directions.

5. The film roll bag collecting device according to claim 4, wherein, A depression extending in the left-right direction is formed in the middle of the central support block.

6. The film roll bag collecting device according to claim 1, characterized in that, The traveling mechanism comprises a frame arranged below the frame, traveling wheels driving the frame to move, and a traveling driving mechanism; at least two guide rails extending in left and right directions are arranged on the ground, and the traveling wheels are connected to the corresponding guide rails.

7. The film roll bag collecting device according to claim 6, wherein, The frame is provided with four running wheels, the four running wheels are opposite to each other in pairs, and the opposite running wheels are connected by a connecting shaft; the running drive mechanism includes a running drive motor, a first gear arranged on the main shaft of the running drive motor and a second gear sleeved on the connecting shaft, and the first gear and the second gear are meshed for transmission.

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