Active follow-up strip bag double-layer stacking and discharging device and control method thereof

Abstract

This invention discloses an active following strip bag double-layer stacking material feeding device and its control method, belonging to the field of mechanical automation technology. It includes an intermittent conveyor, a through-following device, a stacking device, and a partition pick-and-place device. The device features an intermittent conveyor, the right end of which enters the through-following device. The stacking device is located in the left internal space of the through-following device, and the intermittent conveyor passes through the middle of the stacking device. The partition pick-and-place device is located on the left side of the stacking device. This invention, by setting up an intermittent conveyor, through-following device, stacking device, partition pick-and-place device, and a following material feeding production line, can realize the switching between single-layer and double-layer strip bag boxing of different specifications. It is simple to operate, has high boxing accuracy, stable cycle time, and wide adaptability, and can be used for various product specifications. The coordinated control of the stacking device and the partition pick-and-place device improves work efficiency.

Description

Technical Field

[0001] This invention relates to the field of mechanical automation technology, specifically to an active following strip bag double-layer stacking material feeding device and its control method. Background Technology

[0002] Strip bag packaging is a packaging method that involves placing strip-shaped items into boxes, and it is widely used in the food, pharmaceutical, and daily chemical industries.

[0003] Currently, strip bag packaging in pharmaceutical companies is characterized by low-speed and disorganized production. This stems from the industry's stringent requirements for compliance and precision, coupled with the inherent characteristics of strip bags—their tendency to stick, wrinkle, and fragmented sizes—making them unsuitable for existing general-purpose packaging equipment. Furthermore, the high cost and lengthy validation cycles for production line modifications in pharmaceutical companies ultimately result in difficulties in automation implementation, increased manual intervention, and low overall production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an active following strip bag double-layer stacking material feeding device and its control method, which solves the problem that strip bag boxing is currently in a low-speed and disordered boxing production state in pharmaceutical companies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An active following strip bag double-layer stacking material feeding device and its control method include an intermittent conveyor, a through-following device, a stacking device, and a partition pick-and-place device. The device is equipped with an intermittent conveyor, the right end of which passes into the interior of the through-following device. The stacking device is located in the left interior space of the through-following device. The intermittent conveyor passes through the middle of the stacking device. The partition pick-and-place device is located on the left side of the stacking device and is installed above the intermittent conveyor.

[0007] Furthermore, the intermittent conveyor consists of two parallel conveyors. A conveyor scraper is longitudinally mounted on the upper part of the two conveyors, and an adjustable hopper is located between the conveyors. The conveyor scraper is located above the adjustable hopper. Several adjustable hoppers are mounted on the conveyor belt, and the size of the adjustable hopper corresponds to the size of the adjustable hopper. A conveyor servo motor is mounted on the right end of each conveyor, and a conveyor reducer is connected to the upper part of the servo motor. A drive shaft is connected to the side of the conveyor reducer. A driven shaft corresponding to the drive shaft is mounted on the left end of each conveyor. A hopper baffle is located next to the connection position of the adjustable hopper.

[0008] Furthermore, the conveyor scraping device is equipped with a protective cover, and a scraping device drag chain is provided on the side of the protective cover. The scraping device drag chain is connected to the conveyor scraping servo motor diagonally below through a transmission device inside the protective cover. The scraping device drag chain is connected to the conveyor scraping plate below through a connecting rod.

[0009] Furthermore, a main frame is provided outside the following device. Adjustable feet are provided at the bottom of the main frame. An equipment base plate is screwed onto the main frame. A following slide rail is screwed onto the upper surface of the equipment base plate. A following fixing plate is slidably connected to the upper part of the slide rail. Two following vertical plates are screwed onto the upper part of the following fixing plate. Two following horizontal plates are screwed onto the following vertical plates. A scraper servo motor and a reducer are screwed onto the following horizontal plates. The sides of the scraper servo motor and reducer are the following vertical plates. A transmission device is connected to one end of the scraper servo motor and reducer. A horizontal connecting plate is screwed onto the transmission device. A scraper lifting cylinder is screwed onto the lower part of the horizontal connecting plate. A following scraper is screwed onto the lower part of the scraper lifting cylinder. Several vertically perforated connecting plates are screwed onto the middle of the following fixing plate. A horizontal hopper bottom plate is screwed onto the upper part of the vertically perforated connecting plate. Fixed baffles are screwed onto both ends of the horizontal hopper bottom plate. Several adjusting hopper plates are screwed onto the horizontal hopper bottom plate between the fixed baffles.

[0010] A follower servo motor is screwed to the lower surface of the equipment base plate. The output end of the follower servo motor is connected to a follower reducer. The other end of the follower reducer is connected to a follower drive wheel. The follower drive wheel is connected to the follower driven tensioning shaft at the other end through a follower transmission belt. A through hole is provided at the position of the equipment base plate above the follower transmission belt. The follower transmission belt is screwed to the upper follower fixing plate through a connecting vertical rod.

[0011] A distribution box is located at the left corner of the upper part of the equipment base plate.

[0012] Furthermore, a following cable chain is screwed to the upper surface of the equipment base plate, and a following fixing plate is slidably connected to the upper part of the following cable chain.

[0013] Furthermore, the bottom of the stacking device is equipped with a stacking lifting cylinder, and the upper part of the stacking lifting cylinder is screwed to a lifting bracket. The four corners of the lifting bracket are respectively equipped with linear bearings, and the upper part of the linear bearings is screwed to a material hanging bracket. Several buffers are provided between the material hanging bracket and the lifting bracket. The upper wall of the material hanging bracket is screwed to a transmission device, and the lower part of the transmission device is movably connected to a material hanging fixing plate. The lower two sides of the material hanging fixing plate are screwed to scraper baffles. The upper two sides of the bottom wall of the material hanging bracket are screwed to stacking fixing hopper plates. Several stacking adjustable hopper plates are screwed to the stacking fixing hopper plates. The spacing between the stacking adjustable hopper plates corresponds to the size of the scraper baffles. One end of the transmission device is connected to a stacking reducer and a stacking servo motor. The side of the transmission device is equipped with a stacking drag chain.

[0014] Furthermore, the partition plate picking and placing device has a main connecting plate on its exterior, main side plates on both sides of the main connecting plate, and an inclined instruction manual hopper inside the main connecting plate. An instruction manual pressure plate adjusting shaft is located diagonally above the inside of the instruction manual hopper, and an instruction manual suction cup is located diagonally below the inside of the instruction manual hopper. A connecting rod device is connected to the rear end of the instruction manual suction cup. The right end of the connecting rod device is connected to the suction cup rotating shaft, and the left end of the connecting rod device is connected to the partition plate drive shaft. The other end of the partition plate drive shaft is connected to the partition plate reducer and the partition plate servo motor through the connecting rod and the partition plate drive shaft. Several suction position detectors are provided on the suction cup rotating shaft, and a backflush solenoid valve is provided on the main side plate on the left side of the partition plate picking and placing device.

[0015] This invention also provides the following technical solutions:

[0016] An active following strip bag double-layer stacked material feeding device and its control method include the following steps: drug transfer, single-layer placement, stacked placement, and following feeding.

[0017] S1. Drug Transfer: The drugs are processed into strip bags by the multi-row machine at the front end. After passing through the material collection device of the multi-row machine, the strip bag material is pushed to the intermittent conveyor at 6 stations according to the set number of bags. At the same time, the multi-row machine sends a feedback signal to the cartoning machine PLC. The PLC controls the intermittent conveyor to run through 6 stations to the conveyor scraping device station and feeds back to the cartoning machine PLC. The material of the strip bags packaged in the first 6 stations is the first group. The PLC controls the conveyor scraping servo motor to complete the scraping action, scraping the strip bag material on the intermittent conveyor through the conveyor adjusting hopper to the conveyor adjustable hopper on the other side of the conveyor. The cylinder of the conveyor scraper is retracted, the conveyor scraping device returns to the initial position, the cylinder pops out, and the conveyor scraper is in the initial position to wait for the next action. This cycle continues.

[0018] S2, Single-layer placement: In single-layer placement mode, the PLC controls the conveyor near the partition pick-and-place device to advance 6 stations to the partition pick-and-place device station. The manual suction cup on the linkage device driven by the partition servo motor picks up the partition and moves it to the detection position to wait. The material arrival detector detects the presence of the partition and feeds back to the PLC system to determine whether to place the partition or to trigger a stop alarm. The PLC controls the partition servo motor to drive the linkage device and manual suction cup to the partition placement position. When the vacuum breaking condition created by the backflushing solenoid valve is met, the air system breaks the vacuum and places the partition into the designated adjustable hopper on the conveyor. The linkage device and manual suction cup driven by the partition servo motor return to the partition suction position. When the vacuum suction condition created by the backflushing solenoid valve is met, the partition is picked up and moved to the detection position to wait. This process is repeated.

[0019] At this time, the stacking device does not participate in the work, and the material continues to be conveyed to the through-following device. The instruction manual uses it as a partition.

[0020] S3, Stacked Placement: Stacked placement is set up, which is similar to single-layer placement. When stacked placement is executed, the first group of materials does not perform a placement action when it arrives above the partition pick-and-place device. The second batch of materials packaged in strip bags at the second workstation is the second group. The placement action is performed when the second group of materials arrives at the partition pick-and-place device.

[0021] When the first group of materials without partitions arrives at the stacking device, the PLC system controls the scraper baffle, which is in the initial position, to scrape the materials without partitions into the hopper between the stacking adjustable hopper plates of the stacking device. The stacking lifting cylinder lifts the stacking device, and the scraper baffle is in a waiting state. The conveyor continues to advance 6 stations. When the second group of materials with partitions arrives at the stacking device, the stacking servo motor drives the scraper baffle to send the first group of materials without partitions to the stacking placement station. That is, the second group of materials is placed on top of the materials with partitions, completing the stacking function. The intermittent conveyor starts again to transport the materials away, and the stacking lifting cylinder retracts to return the stacking device to the starting position. This process is repeated.

[0022] S4. Following Feed: When the material is conveyed to the following device by the conveyor, the PLC controls the following servo motor to drive the following scraper to push the material into the adjusting bin plate of the following device. After the carton machine PLC system calculates and feeds back the carton machine bin operating parameters, it controls the following servo motor of the following device to start following the carton machine bin and reach the same speed and run side by side. At the same time, the following servo motor continues to push the material into the carton machine bin, completing the feeding action. The following scraper of the following device is installed in an orderly manner on the horizontal connecting plate that can move up and down. At this time, the scraper lifting cylinder retracts, the following scraper is above the bin, the following device returns to the initial position, and the scraper lifting cylinder extends to the initial position, waiting for the next action.

[0023] The beneficial effects of this invention are as follows: This application sets up a production line with orderly material handling of strip bags, automatic picking and placing of partitions, double-layer stacking, and following feeding, which can realize the switching between single-layer and double-layer strip bag boxing of different specifications. The operation is simple, and the boxing accuracy is high, the cycle time is stable, and the adaptability is wide, which can be used for products of various specifications. Through the coordinated control of the double-layer stacking mechanism and the following feeding device, the work efficiency is improved.

[0024] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0026] Figure 2 for Figure 1 A schematic diagram of the elevation structure shown in component 1.

[0027] Figure 3 for Figure 1 A schematic diagram of the planar structure shown in component 1.

[0028] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure shown in component 1.

[0029] Figure 5 for Figure 1 A schematic diagram of the elevation structure shown in component 2.

[0030] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of AA.

[0031] Figure 7 for Figure 1 A schematic diagram of the planar structure shown in component 2.

[0032] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure shown in component 2.

[0033] Figure 9 for Figure 1 A schematic diagram of the front structure shown in component 3.

[0034] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of BB.

[0035] Figure 11 for Figure 1 A schematic diagram of the planar structure shown in component 3.

[0036] Figure 12 for Figure 1 A schematic diagram of the reverse structure shown in component 3.

[0037] Figure 13 for Figure 1 A schematic diagram of the three-dimensional structure shown in component 3.

[0038] Figure 14 for Figure 1 A schematic diagram of the planar structure shown in component 4.

[0039] Figure 15 for Figure 14 Schematic diagram of the CC cross-section structure.

[0040] Figure 16 for Figure 14 Schematic diagram of the cross-sectional structure of DD.

[0041] Figure 17 for Figure 1 The structural schematic diagram of the middle component 4 shown from a downward angle.

[0042] Figure 18 for Figure 1 A schematic diagram of the three-dimensional structure shown in component 4.

[0043] Figure 19 for Figure 3 A schematic diagram of the internal structure of the middle component 10 from multiple angles.

[0044] Figure 20 for Figure 1 Planar sectional view of component 1.

[0045] Figure 21 for Figure 1 A schematic diagram of the internal three-dimensional structure shown in component 4.

[0046] Explanation of reference numerals in the attached drawings: 1. Intermittent conveyor; 2. Cross-following device; 3. Stacking device; 4. Partition plate picking and placing device; 10. Conveyor scraping device; 11. Conveyor adjusting hopper; 12. Conveyor adjustable hopper; 13. Conveyor servo motor; 14. Conveyor reducer; 15. Drive shaft; 16. Driven shaft; 17. Conveyor hopper baffle; 20. Main frame; 21. Equipment base plate; 22. Following slide rail; 23. Following fixed plate; 24. Scraper servo motor; 25. Reducer; 26. Scraper lifting cylinder; 27. Following scraper; 28. Adjusting hopper plate; 29. ​​Following servo motor; 30. 31. Stacking lifting cylinder; 32. Lifting bracket; 33. Material hanging bracket; 34. Material hanging fixing plate; 35. Scraper baffle; 36. Stacking adjustable hopper plate; 37. Stacking reducer; 48. Stacking servo motor; 49. Main body connecting plate; 40. Main body side plate; 41. Material hopper; 42. Pressure plate adjusting shaft; 43. Suction cup; 44. Connecting rod device; 45. Partition reducer; 46. Partition servo motor; 47. Material suction position detector; 48. Backflush solenoid valve; 100. Protective cover; 101. Scraper device drag chain; 102. Conveyor scraper servo motor; 103. Conveyor scraper plate. Detailed Implementation

[0047] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Please see Figure 1 A preferred embodiment of this application shows an active following strip bag double-layer stacking material feeding device, including an intermittent conveyor 1, a through-following device 2, a stacking device 3, and a partition pick-and-place device 4. The device is provided with an intermittent conveyor 1, the right end of which passes through the through-following device 2. The stacking device 3 is provided in the left internal space of the through-following device 2. The intermittent conveyor 1 passes through the middle of the stacking device 3. The partition pick-and-place device 4 is provided on the left side of the stacking device 3 and is installed above the intermittent conveyor 1.

[0051] Intermittent conveyor 1 consists of two parallel conveyors. A conveyor scraper 10 is longitudinally mounted on the upper part of the two conveyors. A conveyor regulating hopper 11 is located between the conveyors. The conveyor scraper 10 is located above the conveyor regulating hopper 11. Several conveyor adjustable hoppers 12 are mounted on the conveyor belt. The size of the conveyor adjustable hopper 12 corresponds to the size of the conveyor regulating hopper 11. A conveyor servo motor 13 is mounted on the right end of each conveyor. A conveyor reducer 14 is connected to the upper part of the conveyor servo motor 13. A drive shaft 15 is connected to the side of the conveyor reducer 14. A driven shaft 16 corresponding to the drive shaft 15 is mounted on the left end of each conveyor. A conveyor hopper baffle 17 is located next to the connection position of the conveyor regulating hopper 11.

[0052] The conveyor scraping device 10 is provided with a protective cover 100. The side of the protective cover 100 is provided with a scraping device drag chain 101. The scraping device drag chain 101 is connected to the conveyor scraping servo motor 102 below through the transmission device inside the protective cover 100. The scraping device drag chain 101 is connected to the conveyor scraping plate 103 below through the connecting rod.

[0053] A main frame 20 is provided outside the following device 2. Adjustable feet are provided at the bottom of the main frame 20. A base plate 21 is screwed onto the main frame 20. A following slide rail 22 is screwed onto the upper surface of the base plate 21. A following fixing plate 23 is slidably connected to the upper part of the slide rail. Two following vertical plates are screwed onto the upper part of the following fixing plate 23. Two following horizontal plates are screwed between the following vertical plates. A scraping servo motor 24 and a reducer 25 are screwed between the following horizontal plates. The sides of the scraping servo motor 24 and the reducer 25 are the following vertical plates. A transmission device is connected to one end of the material servo motor 24 and the reducer 25. A transverse connecting plate is screwed onto the transmission device. A scraper lifting cylinder 26 is screwed onto the lower part of the transverse connecting plate. A following scraper 27 is screwed onto the lower part of the scraper lifting cylinder 26. Several vertically perforated connecting plates are screwed onto the middle of the following fixing plate 23. A transverse hopper bottom plate is screwed onto the upper part of the vertically perforated connecting plate. Fixed baffles are screwed onto both ends of the transverse hopper bottom plate. Several adjusting hopper plates 28 are screwed onto the transverse hopper bottom plate between the fixed baffles.

[0054] A follower servo motor 29 is screwed and fixed to the lower surface of the equipment base plate 21. The output end of the follower servo motor 29 is connected to a follower reducer. The other end of the follower reducer is connected to a follower drive wheel. The follower drive wheel is connected to the follower driven tension shaft at the other end through a follower transmission belt. A through hole is provided at the position of the equipment base plate 21 above the follower transmission belt. The follower transmission belt is screwed and fixed to the upper follower fixing plate 23 through a connecting vertical rod.

[0055] A distribution box is located at the left corner of the upper part of the equipment base plate 21.

[0056] A following cable chain is screwed to the upper surface of the equipment base plate 21, and a following fixing plate 23 is slidably connected to the upper part of the following cable chain.

[0057] The bottom of the stacking device 3 is provided with a stacking lifting cylinder 30. The upper part of the stacking lifting cylinder 30 is screwed to a lifting bracket 31. The four corners of the lifting bracket 31 are respectively provided with linear bearings. The upper part of the linear bearings is screwed to a hanging bracket 32. Several buffers are provided between the hanging bracket 32 ​​and the lifting bracket 31. The upper wall of the hanging bracket 32 ​​is screwed to a transmission device. The lower part of the transmission device is movably connected to a hanging fixing plate 33. The lower two sides of the hanging fixing plate 33 are screwed to a scraper baffle 34. The upper two sides of the bottom wall of the hanging bracket 32 ​​are screwed to a stacking fixing hopper plate. Several stacking adjustable hopper plates 35 are screwed to the stacking fixing hopper plates. The spacing between the stacking adjustable hopper plates 35 corresponds to the size of the scraper baffle 34. One end of the transmission device is connected to a stacking reducer 36 and a stacking servo motor 37. The side of the transmission device is provided with a stacking drag chain.

[0058] The partition plate picking and placing device 4 has a main connecting plate 40 on its exterior, and main side plates 41 on both sides of the main connecting plate 40. The main connecting plate 40 has an inclined instruction manual hopper 42 inside, and an instruction manual pressure plate adjusting shaft 43 is located on the upper inside of the instruction manual hopper 42. An instruction manual suction cup 44 is located on the lower inside of the instruction manual hopper 42. A connecting rod device 45 is connected to the rear end of the instruction manual suction cup 44. The right end of the connecting rod device 45 is connected to the suction cup rotating shaft, and the left end of the connecting rod device 45 is connected to the partition plate drive shaft. The other end of the partition plate drive shaft is connected to the partition plate reducer 46 and the partition plate servo motor 47 through the connecting rod and the partition plate drive shaft. Several suction position detectors 48 are provided on the suction cup rotating shaft. A backflush solenoid valve 49 is provided on the main side plate 41 on the left side of the partition plate picking and placing device 4.

[0059] An active following strip bag double-layer stacked material feeding device and its control method include the following steps: drug transfer, single-layer placement, stacked placement, and following feeding.

[0060] S1. Drug Transfer: The drugs are processed into strip bags by the multi-row machine at the front end. After passing through the material collection device of the multi-row machine, the strip bag material is pushed to the intermittent conveyor 1 at 6 stations according to the set number of bags. At the same time, the multi-row machine sends a feedback signal to the cartoning machine PLC. The PLC controls the intermittent conveyor 1 to run through 6 stations to the conveyor scraping device 10 station and feeds back to the cartoning machine PLC. The material of the strip bags packaged at the first 6 stations is the first group. The PLC controls the conveyor scraping servo motor 102 to complete the scraping action, scraping the strip bag material on the intermittent conveyor 1 through the conveyor adjusting hopper 11 to the conveyor adjustable hopper 12 on the other side of the conveyor. The cylinder of the conveyor scraper 103 is controlled to retract, the conveyor scraping device 10 returns to the initial position, the cylinder pops out, and the conveyor scraper 103 is in the initial position to wait for the next action. This cycle continues.

[0061] S2, Single-layer placement: Single-layer placement is set. The PLC controls the conveyor near the partition pick-and-place device 4 to advance 6 stations to the partition pick-and-place device 4 station. The instruction manual suction cup 44 on the linkage device 45 driven by the partition servo motor 47 picks up the partition and moves it to the detection position to wait. The material suction position detector 48 detects whether the partition is present and feeds back to the PLC system to determine whether to place the partition or to stop the alarm. The PLC controls the partition servo motor 47 to drive the linkage device 45 and the instruction manual suction cup 44 to the partition placement position. The vacuum breaking condition constructed by the backflushing solenoid valve 49 is met. The air circuit system performs vacuum breaking to place the partition into the designated conveyor adjustable hopper 12. The linkage device 45 and the instruction manual suction cup 44 driven by the partition servo motor 47 return to the partition suction position. The vacuum breaking condition constructed by the backflushing solenoid valve 49 is met. The partition is picked up and moves to the detection position to wait. This process is repeated.

[0062] At this time, the stacking device 3 does not participate in the work, and the material continues to be conveyed to the passing and following device 2. The instruction manual uses it as a partition.

[0063] S3, Stacked Placement: Stacked placement is set up, which is similar to single-layer placement. When stacked placement is executed, the first group of materials does not perform a placement action when it reaches the partition pick-and-place device 4. The second batch of materials packaged in strip bags at the second 6 workstations is the second group. The placement action is performed when the second group of materials reaches the partition pick-and-place device 4.

[0064] When the first group of materials without partitions in the partition picking and placing device 4 arrives at the stacking device 3, the PLC system controls the scraper baffle 34, which is in the initial position, to scrape the materials without partitions into the hopper between the stacking adjustable hopper plates 35 of the stacking device 3. The stacking lifting cylinder 30 lifts the stacking device 3, and the scraper baffle 34 is in a waiting state. The conveyor continues to advance 6 stations. When the second group of materials with partitions arrives at the stacking device 3, the stacking servo motor 37 drives the scraper baffle 34 to send the first group of materials without partitions to the stacking placement station. That is, the second group of materials is placed on top of the materials with partitions, completing the stacking function of the materials. The intermittent conveyor 1 starts again to transport the materials away, and the stacking lifting cylinder 30 retracts to return the stacking device 3 to the starting position. This process is repeated.

[0065] S4. Following Feed: When the material is conveyed to the following device 2 by the conveyor, the PLC controls the following servo motor 29 to drive the following scraper 27 to push the material into the adjusting hopper plate 28 of the following device 2. After the cartoning machine PLC system calculates and feeds back the cartoning machine hopper operating parameters, it controls the following servo motor 29 of the following device 2 to start following the cartoning machine hopper and reach the same speed and run side by side. At the same time, the following servo motor 29 continues to push the material into the cartoning machine hopper to complete the feeding action. The following scraper 27 of the following device 2 is installed in an orderly manner on the horizontal connecting plate that can move up and down. At this time, the scraper lifting cylinder 26 retracts, the following scraper 27 is above the hopper, the following device 2 returns to the initial position, and the scraper lifting cylinder 26 extends to the initial position, waiting for the next action.

[0066] The transmission device consists of several transmission belts and transmission shafts.

[0067] In summary, this invention provides an active following strip bag double-layer stacking and feeding device and its control method. This device, by setting up a production line for orderly material handling of strip bags, automatic picking and placing of partitions, double-layer stacking, and following feeding, can realize the switching between single-layer and double-layer strip bag boxing of different specifications. It is simple to operate, and has high boxing accuracy, stable cycle time, and wide adaptability, and can be used for various specifications of products. Through the coordinated control of the double-layer stacking mechanism and the following feeding device, work efficiency is improved.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments merely illustrate implementation methods of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An active following strip bag double-layer stacked material feeding device, characterized in that, The device includes an intermittent conveyor (1), a through-following device (2), a stacking device (3), and a partition pick-and-place device (4). The device is equipped with an intermittent conveyor (1), the right end of which passes through the through-following device (2). The stacking device (3) is located in the left interior space of the through-following device (2). The intermittent conveyor (1) passes through the middle of the stacking device (3). The partition pick-and-place device (4) is located on the left side of the stacking device (3). The partition pick-and-place device (4) is installed above the intermittent conveyor (1).

2. The active following strip bag double-layer stacked material feeding device as claimed in claim 1, characterized in that, Intermittent conveyor (1) consists of two parallel conveyors. A conveyor scraper (10) is longitudinally strung across the upper part of the two conveyors. A conveyor regulating hopper (11) is provided between the conveyors. The conveyor scraper (10) is located above the conveyor regulating hopper (11). Several conveyor adjustable hoppers (12) are provided on the conveyor belt. The size of the conveyor adjustable hopper (12) corresponds to the size of the conveyor regulating hopper (11). A conveyor servo motor (13) is provided at the right end of each conveyor. A conveyor reducer (14) is connected to the upper part of the conveyor servo motor (13). A drive shaft (15) is connected to the side of the conveyor reducer (14). A driven shaft (16) corresponding to the drive shaft (15) is provided at the left end of each conveyor. A conveyor hopper baffle (17) is provided next to the connection position of the conveyor regulating hopper (11).

3. The active following strip bag double-layer stacked material feeding device as claimed in claim 2, characterized in that, The conveyor scraper (10) is provided with a protective cover (100) on the outside. The side of the protective cover (100) is provided with a scraper drag chain (101). The scraper drag chain (101) is connected to the conveyor scraper servo motor (102) below the protective cover (100) through the transmission device inside the protective cover (100). The scraper drag chain (101) is connected to the conveyor scraper plate (103) below the protective cover through the connecting rod.

4. The active following strip bag double-layer stacked material feeding device as claimed in claim 1, characterized in that, A main frame (20) is provided outside the following device (2). Adjustable feet are provided at the bottom of the main frame (20). A base plate (21) is screwed onto the main frame (20). A following slide rail (22) is screwed onto the upper surface of the base plate (21). A following fixing plate (23) is slidably connected to the upper part of the slide rail. Two following upright plates are screwed onto the upper part of the following fixing plate (23). Two following horizontal plates are screwed between the following upright plates. A scraper servo motor (24) and a reducer (25) are screwed between the following horizontal plates. The sides of the scraper servo motor (24) and the reducer (25) are... Following the vertical plate, a transmission device is connected to one end of the scraper servo motor (24) and reducer (25). A horizontal connecting plate is screwed onto the transmission device. A scraper lifting cylinder (26) is screwed onto the lower part of the horizontal connecting plate. A following scraper (27) is screwed onto the lower part of the scraper lifting cylinder (26). Several vertically perforated connecting plates are screwed onto the middle of the following fixed plate (23). A horizontal hopper bottom plate is screwed onto the upper part of the vertically perforated connecting plate. Fixed baffles are screwed onto both ends of the horizontal hopper bottom plate. Several adjusting hopper plates (28) are screwed onto the horizontal hopper bottom plate between the fixed baffles. A follower servo motor (29) is screwed and fixed on the lower surface of the equipment base plate (21). The output end of the follower servo motor (29) is connected to a follower reducer. The other end of the follower reducer is connected to a follower drive wheel. The follower drive wheel is connected to the follower driven tension shaft at the other end through a follower transmission belt. A through hole is provided at the position of the equipment base plate (21) above the follower transmission belt. The follower transmission belt is screwed and fixed to the upper follower fixing plate (23) through a connecting vertical rod. A distribution box is located at the left corner of the upper part of the equipment base plate (21).

5. The active following strip bag double-layer stacking material feeding device as claimed in claim 4, characterized in that, A following drag chain is screwed to the upper surface of the equipment base plate (21), and a following fixing plate (23) is slidably connected to the upper part of the following drag chain.

6. The active following strip bag double-layer stacked material feeding device as claimed in claim 1, characterized in that, The bottom of the stacking device (3) is provided with a stacking lifting cylinder (30), and the upper part of the stacking lifting cylinder (30) is screwed and fixed with a lifting bracket (31). The four corners of the lifting bracket (31) are respectively provided with linear bearings, and the upper part of the linear bearings is screwed and fixed with a hanging bracket (32). Several buffers are provided between the hanging bracket (32) and the lifting bracket (31). The upper wall of the hanging bracket (32) is screwed and fixed with a transmission device, and the lower part of the transmission device is movably connected with a hanging fixing plate (33). The lower two sides of the hanging plate (33) are screwed with scraper baffles (34), and the upper two sides of the bottom wall of the hanging bracket (32) are screwed with stacked fixed silo plates. Several stacked adjustable silo plates (35) are screwed between the stacked fixed silo plates. The spacing between the stacked adjustable silo plates (35) corresponds to the size of the scraper baffles (34). One end of the transmission device is connected to a stacked reducer (36) and a stacked servo motor (37). The side of the transmission device is provided with a stacked drag chain.

7. The active following strip bag double-layer stacking material feeding device as claimed in claim 1, characterized in that, The partition plate picking and placing device (4) is provided with a main body connecting plate (40) on the outside, and main body side plates (41) are provided on both sides of the main body connecting plate (40). The main body connecting plate (40) is provided with an inclined instruction manual hopper (42) inside. The instruction manual pressure plate adjustment shaft (43) is provided on the upper inside of the instruction manual hopper (42), and the instruction manual suction cup (44) is provided on the lower inside of the instruction manual hopper (42). The rear end of the instruction manual suction cup (44) is connected to a connecting rod device (45). The right end of the connecting rod device (45) is connected to the suction cup rotating shaft. The left end of the connecting rod device (45) is connected to the partition plate drive shaft. The other end of the partition plate drive shaft is connected to the partition plate reducer (46) and the partition plate servo motor (47) through the connecting rod and the partition plate drive shaft. Several suction position detectors (48) are provided on the suction cup rotating shaft. The main body side plate (41) on the left side of the partition plate picking and placing device (4) is provided with a backflush solenoid valve (49).

8. The control method for an active following strip bag double-layer stacking material feeding device as claimed in claim 1, characterized in that, The process includes the following steps: drug transfer, single-layer placement, stacked placement, and follow-up feeding. S1. Drug delivery: The drug is produced into strip bags by the front-end multi-row machine. After the strip bag material passes through the multi-row machine's material collection device, it is pushed to the intermittent conveyor (1) at 6 stations according to the set number of bags. At the same time, the multi-row machine sends a feedback signal to the cartoning machine PLC. The PLC controls the intermittent conveyor (1) to run 6 stations to reach the conveyor scraping device (10) station and feeds back to the cartoning machine PLC. The material of the strip bags packaged in the first 6 stations is the first group. The PLC controls the conveyor scraping servo motor (102) to complete the scraping action, scraping the strip bag material on the intermittent conveyor (1) through the conveyor adjusting hopper (11) to the conveyor adjustable hopper (12) on the other side of the conveyor. The cylinder of the conveyor scraping plate (103) is controlled to retract, the conveyor scraping device (10) returns to the initial position, the cylinder pops out, and the conveyor scraping plate (103) is in the initial position to wait for the next action. This cycle continues. S2, Single-layer placement: Set single-layer placement. The PLC controls the conveyor close to the partition pick-up and place device (4) to advance 6 stations to the partition pick-up and place device (4) station. The instruction manual suction cup (44) on the linkage device (45) driven by the partition servo motor (47) picks up the partition and reaches the detection position to wait. The material suction position detector (48) detects whether the partition is present and feeds back to the PLC system to determine whether to place the partition or to stop the alarm. The PLC controls the partition servo motor (47) to drive the linkage device (45) and the instruction manual suction cup (44) to reach the partition placement position. The vacuum breaking condition constructed by the backflushing solenoid valve (49) is met. The air circuit system performs vacuum breaking to place the partition into the designated conveyor adjustable hopper (12). The linkage device (45) and the instruction manual suction cup (44) driven by the partition servo motor (47) return to the partition suction position. The vacuum breaking condition constructed by the backflushing solenoid valve (49) is met. The partition is picked up and reaches the detection position to wait. This process is repeated. At this time, the stacking device (3) does not participate in the work, and the material continues to be conveyed to the passing and following device (2). The instruction manual uses it as a partition. S3, Stacked Placement: Stacked placement is set up, which is similar to single-layer placement. When stacked placement is performed, the first group of materials does not perform placement when it reaches the partition pick-and-place device (4) station. The second batch of materials packaged in strip bags at the second station is the second group. When the second group of materials reaches the partition pick-and-place device (4), the placement action is performed. When the first group of materials without partitions in the partition pick-and-place device (4) arrives at the stacking device (3), the scraper baffle (34) in the initial position controlled by the PLC system scrapes the materials without partitions into the hopper between the stacking adjustable hopper plates (35) of the stacking device (3). The stacking lifting cylinder (30) lifts the stacking device (3), and the scraper baffle (34) is in a waiting state. The conveyor continues to advance 6 stations. When the second group of materials with partitions arrives at the stacking device (3), the stacking servo motor (37) drives the scraper baffle (34) to send the first group of materials without partitions to the stacking placement station. That is, the second group of materials is placed on top of the materials with partitions, completing the stacking function of the materials. The intermittent conveyor (1) starts again to transport the materials away, and the stacking lifting cylinder (30) retracts to return the stacking device (3) to the starting position. This process is repeated. S4. Following feeding: When the material is conveyed to the following device (2) by the conveyor, the following servo motor (29) controlled by the PLC drives the following scraper (27) to push the material into the adjusting bin plate (28) of the following device (2). After the cartoning machine PLC system calculates and feeds back the cartoning machine bin operating parameters, it controls the following servo motor (29) of the following device (2) to start following the cartoning machine bin and reach the same speed and run side by side. At the same time, the following servo motor (29) continues to push the material into the cartoning machine bin to complete the feeding action. The following scraper (27) of the following device (2) is installed in an orderly manner on the horizontal connecting plate that can move up and down. At this time, the scraper lifting cylinder (26) retracts, the following scraper (27) is above the bin, the following device (2) returns to the initial position, and the scraper lifting cylinder (26) extends to the initial position, waiting for the next action.

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