Cotton Mold Automatic Unpacking Machine

Abstract

The present invention relates to the technical field of cotton mold unpacking, and specifically relates to an automatic cotton mold unpacking machine, which includes a gantry crane moving along a bottom track. It is characterized in that: a cotton mold grasping station, a film removing station, a film cutting station and a cotton mold discharging station are sequentially arranged along the bottom track; the gantry crane is equipped with a transfer and film peeling integrated mechanism, and the transfer and film peeling integrated mechanism includes a transfer rack that can be lifted and is equipped with a grasping mechanism. The grasping mechanism drives the grasping arm to shake and discharge materials and peel the film through a holding driving device; a film cutting device is arranged at the film cutting station, and the film cutting device includes a film cutting knife that moves in a loop along a conveying chain; the cotton mold discharging station is arranged above an automatic cotton feeding machine, and the gantry crane completes film removal at the film removing station on the way back to the cotton mold grasping station. The present invention avoids the waste of travel and redundant supporting, has a more reasonable working mode and higher efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cotton mold unpacking, and specifically relates to an automatic cotton mold unpacking machine. Background Art

[0002] The information disclosed in the background art of the present invention is only intended to increase the understanding of the overall background of the present invention, and does not necessarily be regarded as an admission or imply in any form that this information constitutes the prior art already known to those of ordinary skill in the art.

[0003] An unpacking machine is used to open the cotton mold packed with a packaging film, remove and take off the packaging film, and is dedicated to the front of a carding machine in a non-woven fabric factory, a wool opening factory, a wool spinning factory, a cotton opening factory production line, etc. Since non-woven fabric raw materials are generally packed into hard bales, each bale of raw materials is about 200 kilograms and is very compact. One to three people are required to manually shake it open by hand, resulting in a large labor intensity. Sometimes, individual large pieces will jam the carding machine. When there are several kinds of materials together, manual adjustment and shaking are also uneven, which is very troublesome.

[0004] According to the above situation, in the prior art, an unpacking machine has been developed. For example, the invention patent with the publication number CN113148356A discloses a cotton mold film removing machine, including: a workbench, which includes a film removing workbench, a feeding workbench located at the front stage of the film removing workbench, and a discharging workbench located at the rear stage of the film removing workbench; a film cutting knife, located on the front side of the film removing workbench to cut the packaging film on the cotton mold in the feeding direction; a film removing mechanism, located under the tabletop of the film removing workbench. The claws of the film removing mechanism protrude upward from the tabletop of the film removing workbench, and a set of claws is provided in the left-right opposite direction. The film removing mechanism provides reciprocating movements of the two sets of claws in the left-right direction towards and away from each other; a discharging mechanism, located at the discharging workbench to unload the cotton transported from the film removing workbench. Although this cotton mold film removing machine can automatically cut the packaging film and peel it off, the grasping mechanism of the cotton mold includes at least one arm portion arranged on the left and right and a hook head installed at the lower end of the arm portion, as well as a second driving mechanism for driving the movement of the arm portion. The arm portion includes a main arm hinged to the lifting portion and a hook arm hinged to the upper part of the main arm. The hook head is installed at the lower end of the hook arm. The power end of the second driving mechanism is hinged to the upper end of the hook arm. Based on the hinged position of the hook arm, the hook arm forms a lever, and the second driving mechanism will drive the main arm while driving the hook arm. However, since the main arm is driven by the hook arm, the gravity generated by the cotton mold all acts on the hinge joint between the hook arm and the second driving mechanism. Moreover, the lever arm here is small and the acting force borne is extremely large. Once the film removal is not smooth, it is extremely easy to break. In addition, since the cotton mold is transported on the conveying roller and the film cutting knife is arranged below the conveying roller, when the cotton mold passes by, the acting force generated by the frictional force acts on the film cutting knife. Therefore, the depth and width of the film cutting by the film cutting knife are limited. To make up for this defect, a film removing process is added, which is actually time-consuming and laborious, resulting in great waste. In addition, in the film grasping mechanism, the film grasping assembly needs to horizontally move from the film grasping area to the film unloading area and then return, causing unnecessary travel waste. Therefore, the structure and working method of this cotton mold film removing machine are both unreasonable, greatly reducing its service life and working efficiency. Therefore, it is necessary to improve it. Summary of the Invention

[0005] In view of the above technical problems, the present invention provides an efficient automatic cotton mold unpacking machine.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] Cotton mold automatic unpacking machine, including a gantry crane moving along the bottom track, and successively arranged along the bottom track are a cotton mold grasping station, a film stripping station, a film cutting station and a cotton mold discharging station; the gantry crane is installed with a transfer and film stripping integrated mechanism, the transfer and film stripping integrated mechanism includes a transfer rack that can be lifted and installed with a grasping mechanism, the grasping mechanism includes articulated arms that are inclined downward at both ends of the transfer rack, the articulated arms are hinged to grasping arms, a holding driving device is arranged on the outer side of the grasping arms, the grasping arms are also provided with more than two extendable thorns, the thorns are all fixed at one end of their corresponding transmission plates, the transmission plates are all hinged and fixed on the grasping arms, the other ends of the transmission plates are all hinged and connected to connecting rods through movable shafts, and the grasping arms are also provided with guide holes for the movable shafts to slide; the film cutting station is provided with a film cutting device, the film cutting device includes a film cutting knife that moves in a loop along the conveying chain; the cotton mold discharging station is arranged above the automatic cotton feeding machine.

[0008] Further, the film cutting device includes a base installed on the conveying chain, and a film cutting knife and a spring for supporting its reset are hinged to the base.

[0009] Further, the transfer rack is driven by a pulley group driving mechanism; the pulley group driving mechanism includes a steel wire rope, a left pulley group, a right pulley group and a lifting driving device, and the lifting driving device is horizontally installed.

[0010] Preferably, a longitudinal slide rail is installed on the top of the gantry crane, a longitudinal trolley is installed in cooperation with the longitudinal slide rail, and the pulley group driving mechanism is installed on the longitudinal trolley.

[0011] Preferably, both the holding driving device and the lifting driving device are hydraulic cylinders; one end of the holding driving hydraulic cylinder is hinged to the transfer rack through a hinge plate, and the other end is hinged to the middle of the grasping arm.

[0012] Preferably, a stop block is arranged near the lower end of the articulated arm.

[0013] Preferably, the transmission plate is an L-shaped plate.

[0014] Further, a long strip through hole for the thorns to pass through is arranged on the inner side of the articulated arm.

[0015] Preferably, a positioning sensor is arranged at the cotton mold grasping station, an induction module is arranged at the film cutting station, an induction switch is arranged at the cotton mold discharging station; safety detectors are arranged on both sides of the gantry crane.

[0016] Beneficial effects: The cotton module is grasped by the integrated transporting and film-peeling mechanism, and the gantry crane travels along the bottom track to the film-cutting station. When passing through the film-cutting station, the film-cutting device is activated, and the film-cutting knife actively cuts the packaging film of the cotton module. During this process, the cotton module is continuously clamped by the grasping arm, making the film-cutting stable and efficient. After passing through the film separation, the gantry crane continues to travel along the bottom track to the cotton module unloading station. The holding and driving device drives the grasping arm to loosen and tighten multiple times to the specified position, so that the packaging film is continuously shaken under the premise that it is restricted by the thorn needles and does not fall off, and the opened cotton module is initially loosened, making it easier to be dispersed and fluffed in the automatic cotton feeding machine, improving its working efficiency. During this process, since the grasping arm is driven by the holding and driving device, the thorn needles, their transmission plates, movable shafts and connecting rods move with the driving of the grasping arm and do not bear the corresponding loads, with high stability. The grasping arm as a whole bears the load evenly, and under the same conditions, it has a stronger load-bearing capacity, providing a favorable basic condition for jitter unloading and film peeling. After completing the jitter film peeling, the packaging film returns to the cotton module grasping station with the integrated transporting and film-peeling mechanism through the gantry crane. When reaching the demolding station, the grasping arm opens under the driving of the holding and driving device, the movable shaft slides in the guiding hole, the transmission plate rotates around its hinge point, and at the same time drives the thorn needles to completely retract, so that the packaging film automatically falls off to complete demolding. Since demolding is completed on the way back to the cotton module grasping station, there is no waste of travel and the efficiency is higher;

[0017] In addition, this automatic cotton module unpacking machine completely replaces manual labor, improves efficiency and safety, reduces costs, and is suitable for both group production and individual use, providing effective guarantee for automated production. Brief Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the integrated transporting and film-peeling mechanism;

[0020] Figure 3 is the structural schematic diagram of the grasping mechanism;

[0021] Figure 4 is the structural schematic diagram of the film-cutting device;

[0022] In the figure, 1. cotton mold, 2. positioning sensor, 3. gantry crane, 4. bottom track, 5. packaging film, 6. grasping mechanism, 7. film cutting device, 8. detector, 9. induction switch, 10. longitudinal trolley, 11. left pulley block, 12. lifting drive device, 13. right pulley block, 14. steel wire rope, 15. automatic cotton feeder, 16. transfer rack, 17. holding drive device, 18. grasping arm, 19. stop block, 20. connecting rod, 21. thorn needle, 22. drive plate, 23. film cutting knife, 24. spring, 25. conveyor chain, 26. induction module, 27. reduction motor, 28. movable shaft, 29. guide hole. Detailed implementation mode

[0023] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0024] Refer to Figures 1 to 4 As shown in the figure, an automatic bale opener for a cotton mold 1 includes a gantry crane 3 moving along a bottom track 4. Along the bottom track 4, a grasping station, a film removing station, a film cutting station and a discharging station for the cotton mold 1 are sequentially arranged; the gantry crane 3 is equipped with a transfer and film removing integrated mechanism. The transfer and film removing integrated mechanism includes a liftable transfer rack 16 installed with a grasping mechanism 6. The grasping mechanism 6 includes articulated arms inclined downward at both ends of the transfer rack 16. The articulated arms are hinged to a grasping arm 18. A holding drive device 17 is arranged outside the grasping arm 18. The grasping arm 18 is also provided with two or more extendable thorn needles 21. The thorn needles 21 are all fixed at one end of their corresponding drive plates 22. The drive plates 22 are all hinged and fixed on the grasping arm 18. The other ends of the drive plates 22 are all hinged and connected to a connecting rod 20 through a movable shaft 28. The grasping arm 18 is also provided with a guide hole 29 for the movable shaft 28 to slide. The other end of the connecting rod 20 is hinged and fixed; a film cutting device 7 is arranged at the film cutting station. The film cutting device 7 includes a film cutting knife 23 moving in a loop along a conveyor chain 25, which actively cuts the packaging film 5 of the cotton mold 1. The discharging station of the cotton mold 1 is arranged above an automatic cotton feeder 15, and the holding drive device 17 drives the grasping arm 18 to shake and discharge the film.

[0025] This cotton mold 1 automatic unpacking machine grabs the cotton mold 1 through the transfer and film peeling integrated mechanism. The gantry crane 3 travels along the bottom track 4 to the film cutting station. When passing through the film cutting station, the film cutting device 7 is activated, and the film cutting knife 23 actively cuts the packaging film 5 of the cotton mold 1. During this process, the cotton mold 1 is continuously clamped by the grasping arm 18, making the film cutting stable and efficient. After passing through the diaphragm, the gantry crane 3 continues to travel along the bottom track 4 to the unloading station of the cotton mold 1. The holding drive device 17 drives the grasping arm 18 to loosen and tighten multiple times to a specified position, so that the packaging film 5 is continuously shaken under the premise that it is restricted by the needle 21 and does not fall, preliminarily loosening the opened cotton mold 1 to facilitate easier opening and fluffing in the automatic cotton feeding machine 15, improving its working efficiency. During this process, since the grasping arm 18 is driven by the holding drive device 17, the needle 21, its transmission plate 22, movable shaft 28, and connecting rod 20 move with the driving of the grasping arm 18 and do not bear the corresponding load, with high stability. The grasping arm 18 as a whole bears the load evenly, and under the same conditions, it has a stronger load-bearing capacity, providing a favorable basic condition for jitter unloading and film peeling. After completing the jitter film peeling, the packaging film 5 returns to the cotton mold 1 grasping station with the transfer and film peeling integrated mechanism through the gantry crane 3. When reaching the demolding station, the grasping arm 18 opens under the drive of the holding drive device 17, the movable shaft 28 slides in the guide hole 29, the transmission plate 22 rotates around its hinge point, and at the same time drives the needle 21 to completely retract, causing the packaging film 5 to automatically fall off to complete demolding. Since demolding is completed on the way back to the cotton mold 1 grasping station, it does not waste the travel and has higher efficiency.

[0026] In addition, this cotton mold 1 automatic unpacking machine completely replaces manual labor, improves efficiency and safety, reduces costs, and is suitable for both group production and individual use, providing effective guarantee for automated production.

[0027] In a further embodiment, as Figure 4 shown, the film cutting device 7 includes a base installed on the conveyor chain 25. The conveyor chain 25 makes a figure-eight reciprocating motion driven by the reduction motor 27. The base is hinged with a film cutting knife 23 and a spring 24 for supporting its reset. The spring 24 can be a gas spring 24 with better performance, providing better buffering and self-adaptability.

[0028] In a further embodiment, as Figure 1 shown, the transfer rack 16 is driven by a pulley group drive mechanism. The pulley group drive mechanism includes a steel wire rope 14, a left pulley group 11, a right pulley group 13, and a lifting drive device 12. The lifting drive device 12 is horizontally installed, does not occupy the vertical space, avoids interference with the cotton mold 1, and improves the space utilization rate inside the gantry crane 3.

[0029] In another preferred embodiment, a longitudinal slide rail is installed on the top of the gantry crane 3 (relatively speaking, the bottom rail 4 is a transverse rail), which is driven by a corresponding driving device (such as a motor). A longitudinal trolley 10 is installed in cooperation with the longitudinal slide rail, and the pulley group driving mechanism is installed on the longitudinal trolley 10. In this way, the transfer and film stripping integrated mechanism can move horizontally, longitudinally and vertically, providing conditions for the three-dimensional positioning function, making the adaptability of grasping the cotton mold 1 stronger and the range larger, and it can adapt to more complex working environments.

[0030] In another preferred embodiment, both the holding driving device 17 and the lifting driving device 12 are hydraulic cylinders, providing stronger and more stable power; specifically, as Figure 2 and Figure 3 shown, one end of the holding driving hydraulic cylinder is hinged to the transfer rack 16 through a hinge plate, and the other end is hinged to the middle of the grasping arm 18.

[0031] In another preferred embodiment, a stop block 19 is arranged near the lower end of the articulated arm to limit the grasping arm 18.

[0032] In another preferred embodiment, as Figure 2 and Figure 3 shown, the transmission plate 22 is an L-shaped plate.

[0033] In a further embodiment, through holes for the cooperation of the thorn needles 21 to pass through are arranged inside the articulated arm. Since the thorn needles 21 move in a fan shape around their hinge points along with the transmission plate 22, the through holes can be long strip holes, improving the cooperation degree with the thorn needles 21 and enhancing the overall stability.

[0034] In another preferred embodiment, as Figure 1 and Figure 4 shown, a positioning sensor 2 is arranged at the cotton mold 1 grasping station, an induction module 26 is arranged at the film cutting station, and an induction switch 9 is arranged at the cotton mold 1 unloading station; safety detectors 8 are arranged on both sides of the gantry crane 3.

[0035] Working process: When the induction switch 9 senses that the unginned cotton in the storage bin of the automatic cotton feeding machine is less than the set storage amount, the gantry crane 3 moves along the crane track 4 to the position of the positioning sensor 2 of the cotton module 1. After the longitudinal trolley 10 adapts to the longitudinal position according to the positioning sensor 2, the grasping mechanism 6 descends to the specified height under the action of the lifting oil cylinder 12 and the steel wire rope 14. The grasping arm 18 is pushed by the holding oil cylinder 17 to position C to tightly hold the cotton module 1. The thorn needles 21 protruding from the grasping arm 18 pierce through the packaging film 5 and fix it at the grasping arm 18. Subsequently, it is lifted to the specified height under the action of the lifting oil cylinder 12. The gantry crane 3 moves to the film cutting station. After the induction module 26 installed on the film cutting part senses that the cotton module 1 is placed in place, the reduction motor 27 drives the conveying chain 25 to pull the film cutting knife 23 installed on it from one end to the other end. During this process, the film cutting knife 23 adapts to the contact pressure between the tip of the knife and the cotton module 1 under the action of the gas spring 24 to cut open the packaging film 5 covering the surface of the cotton module 1. When the induction module senses that the cotton module 1 leaves the film cutting part 7, the film cutting knife 23 will return to its original position under the drive of the reduction motor 27. Then the gantry crane 3 moves to the cotton module unloading station and the grasping mechanism 6 reaches the predetermined height under the action of the lifting oil cylinder 12 to unload the unginned cotton into the automatic cotton feeding machine 15. During the unloading process, the grasping arm 18 reciprocates rapidly between positions B and D under the push and pull of the holding oil cylinder 17 to shake the agglomerated cotton loose and fall into the automatic cotton feeding machine 15. After all the unginned cotton is unloaded, the grasping mechanism 6 reaches the demoulding station driven by the gantry crane 3 and stops at an appropriate height under the action of the lifting oil cylinder 12. The grasping arm 18 is pulled by the holding oil cylinder 17 to position A. At this time, the thorn needles 21 retract to the outside of the grasping arm 18 under the action of the link mechanism 20, and the packaging film 5 falls off automatically. Finally, the grasping arm 18 returns to position B, and the grasping mechanism 6 stops at the predetermined height waiting for the signal from the induction switch 9 to enter the next bale opening procedure. The present invention avoids the waste of travel and redundant accessories (such as conveyor rollers and workbenches), has a more reasonable working mode and higher efficiency. The height of the grasping mechanism 6 at the unloading station will be preset according to whether the user's automatic cotton feeding machine 15 is installed on the ground or underground. The detectors 8 installed on both sides of the gantry crane 3 are used to sense whether there are obstacles such as people and vehicles in the moving direction of the gantry crane to avoid accidents.

[0036] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. Cotton mold automatic unpacking machine, including a gantry crane moving along the bottom track, characterized in that: A cotton mold grasping station, a film removing station, a film cutting station, and a cotton mold discharging station are sequentially arranged along the bottom track; the gantry crane is installed with a transfer and film peeling integrated mechanism, and the transfer and film peeling integrated mechanism includes a liftable transfer frame, and a grasping mechanism is installed on the transfer frame. The grasping mechanism includes articulated arms that are inclined downward at both ends of the transfer frame, the articulated arms are hinged to grasping arms, a holding drive device is arranged on the outer side of the grasping arms, and the grasping arms are further provided with two or more extendable thorns. The thorns are all fixed at one end of their corresponding transmission plates, the transmission plates are all hinged and fixed on the grasping arms, the other ends of the transmission plates are all hinged and connected to connecting rods through movable shafts, and the grasping arms are further provided with guide holes for the movable shafts to slide. The other ends of the connecting rods are hinged and fixed; a film cutting device is arranged at the film cutting station, and the film cutting device includes a base installed on a conveying chain. The conveying chain makes a figure-eight reciprocating motion under the drive of a speed reduction motor. A film cutting knife that makes a figure-eight motion with the conveying chain and a spring for supporting the reset of the film cutting knife are hinged to the base; the cotton mold discharging station is arranged above an automatic cotton feeding machine; the transfer frame is driven by a pulley group drive mechanism; the pulley group drive mechanism includes a steel wire rope, a left pulley group, a right pulley group, and a lifting drive device, and the lifting drive device is horizontally installed; a longitudinal slide rail is installed on the top of the gantry crane, a longitudinal trolley is installed in cooperation with the longitudinal slide rail, and the pulley group drive mechanism is installed on the longitudinal trolley; the holding drive device and the lifting drive device are both hydraulic cylinders. One end of the holding drive device is hinged to the transfer frame through a hinge plate, and the other end is hinged to the middle of the grasping arm; the transmission plate is an L-shaped plate; a positioning sensor is arranged at the cotton mold grasping station, an induction module is arranged at the film cutting station, and an induction switch is arranged at the cotton mold discharging station; safety detectors are arranged on both sides of the gantry crane.

2. The automatic bale opener for cotton molds according to claim 1, characterized in that: A stopper is arranged near the lower end of the articulated arm.

3. The automatic bale opener for cotton molds according to claim 1, wherein: A long strip-shaped through hole for the thorns to pass through is arranged on the inner side of the articulated arm.

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