A packaging bag loading and opening device

Abstract

This invention provides a packaging bag feeding and opening device, comprising a storage mechanism, a feeding mechanism, an opening mechanism, and a shifting mechanism. The storage mechanism is used to hold packaging bags. The feeding mechanism includes a picking component and a steering component. The picking component is used to pick up the packaging bags, and the steering component is connected to the picking component. The opening mechanism is located on one side of the storage mechanism and includes an adsorption component and an opening box. The adsorption component includes at least two adsorption elements. The opening box has an upward-opening opening cavity inside, and opening holes are provided on two opposite sides of the opening box. At least two adsorption elements can pass through the opening holes on both sides of the opening box to enter the opening cavity. The shifting mechanism includes a shifting plate and a shifting linear drive unit. There are two storage mechanisms, which are spaced apart along a first direction on the shifting plate. The shifting linear drive unit is connected to the shifting plate. This packaging bag feeding and opening device effectively improves the working efficiency of packaging bag feeding.

Description

Technical Field

[0001] This invention relates to the field of packaging bag feeding technology, and more specifically to a packaging bag feeding and opening device. Background Technology

[0002] Currently, many industries require packaging bags for materials, such as packaging chemical powders in the chemical industry or packaging rice and flour in the food industry. Before packaging, each bag needs to be individually filled, then the bag opening is opened, and finally the material is placed into the bag. This process typically uses equipment for filling and unfilling the bags. However, existing equipment requires a production line for all these processes, resulting in fragmented workflows, poor coordination, low efficiency, and a large footprint, which is detrimental to cost control in small-scale packaging.

[0003] For example, Chinese Patent No. CN105035413A discloses a dual-station automatic bagging machine for valve-mouth packaging bags of mining powders. This equipment consists of five parts: a bag storage system, a bag picking system, a bag feeding system, a bag opening system, and a bag unloading system. Each system is distributed along a production line. After the packaging bags are processed by each system, they need to be conveyed along the production line to the next system. A lot of time is wasted during the conveying process, resulting in low work efficiency. Moreover, such a long production line inevitably requires a large floor space. For the processing of some low-cost small food products, such as rice and flour packaging, it is very unfavorable for cost control. Summary of the Invention

[0004] The purpose of this invention is to provide a packaging bag feeding and opening device, which aims to solve the problem of low packaging efficiency in existing packaging bags.

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

[0006] A packaging bag feeding and opening device is provided, comprising:

[0007] A storage mechanism for holding packaging bags;

[0008] The feeding mechanism includes a picking component and a steering component. The picking component is used to pick up the packaging bag, and the steering component is connected to the picking component and is used to drive the packaging bag to be adjusted to a vertical position.

[0009] The bag opening mechanism is located on one side of the storage mechanism. The bag opening mechanism includes an adsorption component and a bag opening box. The adsorption component includes at least two adsorption elements. The bag opening box has an upward-opening bag opening cavity inside. The bag opening box has bag opening holes on two opposite sides. At least two adsorption elements can pass through the bag opening holes on both sides of the bag opening box and enter the bag opening cavity.

[0010] The displacement mechanism includes a displacement plate and a displacement linear drive unit. There are two storage mechanisms, which are spaced apart on the displacement plate along a first direction. The displacement linear drive unit is connected to the displacement plate to drive the displacement plate to move along the first direction.

[0011] Optionally, the storage mechanism includes a rotating plate, a side plate, a flipping assembly, a bottom plate, a flexible hinge, a storage linear drive unit, and two bases. The flipping assembly is connected to the rotating plate to drive the rotating plate to rotate. The bottom plate is located above the bases. The storage linear drive unit is connected to the bottom plate to drive the bottom plate to move up and down. The rotating plate and the side plate are spaced apart on both sides of the bottom plate along the first direction. The bottom of the rotating plate is rotatably connected to one of the bases via the flexible hinge. The bottom of the side plate is connected to the other base. The rotating plate, the side plate, and the bottom plate together form a storage cavity for placing packaging bags.

[0012] Optionally, the flipping assembly includes a flipping rod, a flipping elastic element, a wedge block, and two rollers. The flipping rod passes through the base vertically. The upper end of the flipping rod is rotatably connected to one of the rollers, and the lower end of the flipping rod is rotatably connected to the other roller. The flipping elastic element is disposed on the base and connected to the flipping rod to drive the flipping rod to move up and down. The bottom of the rotating plate is provided with an inclined surface. One of the rollers abuts against the inclined surface, and the other roller abuts against the inclined surface on the wedge block.

[0013] Optionally, the packaging bag feeding and opening device further includes an adjustment mechanism, which is used to simultaneously adjust the distance between the rotating plate and the side plate in the two storage mechanisms;

[0014] The storage mechanism also includes a forward and reverse threaded rod, which has a left-hand threaded part and a right-hand threaded part, one of which is threaded to the left-hand threaded part and the other is threaded to the right-hand threaded part;

[0015] The adjustment mechanism includes an adjustment support frame and an adjustment motor. Both the adjustment support frame and the adjustment motor are located on the shift plate. The adjustment motor is connected to the positive and negative threaded rods in the two material storage mechanisms, respectively.

[0016] Optionally, the storage mechanism further includes a storage limiting plate and a compensation component. The storage limiting plate is connected to the top of the side plate and the rotating plate. The compensation component includes a compensation elastic element, one end of which is connected to the shifting plate, and the other end of which is connected to the bottom plate.

[0017] Optionally, the material handling assembly includes a flattening linear drive unit, a pressure plate, and a material handling vacuum suction cup. The flattening linear drive unit is connected to the steering assembly and the pressure plate. The pressure plate is provided with an adsorption hole, and the material handling vacuum suction cup is located in the adsorption hole. The material handling vacuum suction cup does not protrude from the surface of the pressure plate and is connected to an external vacuum pump.

[0018] Optionally, the bag opening mechanism further includes a first displacement component and a linkage component. The first displacement component is connected to at least one of the adsorption elements, and the linkage component is connected to at least two of the adsorption elements to drive at least two of the adsorption elements to move closer to or further away from each other.

[0019] Optionally, the first displacement component includes a first linear drive unit and two opening plates, at least two of the adsorption elements are respectively disposed on the two opening plates, the linkage component is respectively connected to the two opening plates, and the first linear drive unit is connected to one of the opening plates to drive one of the opening plates to move along the second direction.

[0020] Optionally, the linkage assembly includes a guide rod, a guide seat, a linkage slider, a first connecting rod, and a second connecting rod. The guide rod extends along the second direction, and both opening plates are slidably connected to the guide rod. The guide seat is located between the two opening plates. The linkage slider is slidably connected to the guide seat in a vertical direction. One end of the first connecting rod is rotatably connected to the slider, and the other end of the first connecting rod is rotatably connected to one of the opening plates. One end of the second connecting rod is rotatably connected to the slider, and the other end of the second connecting rod is rotatably connected to the other opening plate.

[0021] Optionally, the adsorption component includes a bag-opening vacuum tube and a bag-opening vacuum suction cup, wherein the bag-opening vacuum tube is disposed on the bag-opening plate and is connected to the bag-opening vacuum suction cup.

[0022] Optionally, the packaging bag feeding and opening device further includes a feeding mechanism, which includes a storage hopper, a second displacement component, and a discharging component. The second displacement component is connected to the storage hopper to drive the storage hopper to move above the opening cavity. The bottom of the storage hopper is provided with a discharging port, and the discharging component is used to open or close the discharging port.

[0023] Optionally, the packaging bag feeding and opening device further includes a base plate, the storage mechanism and the opening mechanism are respectively disposed on both sides of the base plate, and the packaging bag feeding and opening device further includes a bag placement guide plate and a bag placement buffer. The bag placement guide plate is disposed above the opening box, and the bag placement guide plate is connected to the base plate through the bag placement buffer.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In the packaging bag feeding and opening device provided by the present invention, two storage mechanisms are used to place packaging bags. A shifting mechanism is used to switch the positions of the two storage mechanisms. After the packaging bags in one storage mechanism are taken out by the picking component, the shifting mechanism moves the other storage mechanism full of packaging bags to below the picking component. The picking component can pick up materials without stopping, avoiding machine downtime. At this time, the operator can put packaging bags into the empty storage mechanism. After the packaging bags in the other storage mechanism full of packaging bags are taken out by the picking component, the shifting mechanism moves this storage mechanism full of packaging bags to below the picking component. This process is repeated to ensure that the picking component is always in a state where materials can be picked up, avoiding machine downtime and effectively improving the working efficiency of packaging bag feeding.

[0026] 2. In the packaging bag feeding and opening device provided by the present invention, the feeding mechanism includes a feeding component and a turning component. The turning component drives the packaging bag to be adjusted to a vertical state, and then puts it into the opening mechanism to open the bag mouth. There is no need to use a conveyor belt or other mechanism for adjustment, which has better linkage and occupies less space, and is more conducive to cost control of small packaging. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the packaging bag feeding and opening device of the present invention;

[0029] Figure 2This is a schematic diagram of the packaging bag feeding and opening device of the present invention from another angle;

[0030] Figure 3 This is a front view of the packaging bag feeding and opening device of the present invention;

[0031] Figure 4 This is a right view of the packaging bag feeding and opening device of the present invention;

[0032] Figure 5 This is a schematic diagram of the material storage mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the material storage mechanism of the present invention from another angle;

[0034] Figure 7 This is a front view of the storage mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the flipping component of the present invention;

[0036] Figure 9 This is a schematic diagram of the adjustment mechanism and the storage mechanism of the present invention;

[0037] Figure 10 This is a schematic diagram of the linkage component of the present invention;

[0038] Figure 11 This is a schematic diagram of the feeding mechanism of the present invention.

[0039] In the diagram: 1. Storage mechanism; 11. Rotating plate; 12. Side plate; 13. Tilting assembly; 131. Tilting rod; 132. Tilting elastic element; 133. Wedge block; 134. Roller; 14. Base plate; 15. Storage linear drive unit; 16. Base; 17. Positive and negative threaded rods; 171. Left-hand threaded part; 172. Right-hand threaded part; 18. Storage limiting plate; 19. Compensation assembly; 191. Compensating elastic element; 192. Compensating limiting post; 2. Feeding mechanism; 21. Material handling group Components; 211, Flattening linear drive unit; 212, Pressure plate; 213, Material picking vacuum suction cup; 214, Suction hole; 215, Flattening bracket; 216, Flattening elastic element; 217, Material picking suction cup connecting rod; 218, Flattening connecting rod; 22, Steering assembly; 221, Steering cylinder; 222, Steering support plate; 3, Bag opening mechanism; 31, Suction assembly; 311, Suction element; 3111, Bag opening vacuum suction tube; 3112, Bag opening vacuum suction cup; 32, Bag opening box; 321, Bag opening... 33. Hole; 33. First displacement assembly; 331. First linear drive unit; 332. Bag opening plate; 34. Linkage assembly; 341. Guide rod; 342. Guide seat; 343. Linkage slider; 344. First connecting rod; 345. Second connecting rod; 346. Linkage groove; 35. Bag opening support plate; 4. Shifting mechanism; 41. Shifting plate; 42. Shifting linear drive unit; 5. Adjustment mechanism; 51. Adjustment support frame; 52. Adjustment motor; 53. Transmission gear set; 531. Active... 532. Gear; 54. Driven gear; 55. Guide post; 6. Adjusting limit plate; 7. Base plate; 7. Feeding mechanism; 71. Storage hopper; 72. Second displacement component; 721. Second linear drive unit; 722. Third linear drive unit; 73. Feeding component; 731. Feeding cylinder; 732. Feeding baffle; 733. Feeding hopper; 8. Bag feeding auxiliary mechanism; 81. Bag feeding guide plate; 82. Bag feeding guide shaft; 83. Bag feeding spring; 9. Laser marking machine; 10. Packaging bag. Detailed Implementation

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0041] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0043] The following is combined Figures 1 to 11 The present invention describes a packaging bag feeding and opening device.

[0044] like Figures 1 to 11 As shown, the present invention provides a packaging bag feeding and opening device, which is mainly used in the feeding and opening steps of packaging bags 10. The packaging bag feeding and opening device mainly includes a storage mechanism 1, a feeding mechanism 2, an opening mechanism 3, and a shifting mechanism 4.

[0045] For ease of explanation, the first direction is left and right, and the second direction is front and back.

[0046] Specifically, such as Figures 1 to 4 As shown, the storage mechanism 1 is used to place the packaging bag 10, and the feeding mechanism 2 includes a picking component 21 and a turning component 22. The picking component 21 is used to pick up the packaging bag 10, and the turning component 22 is connected to the picking component 21 and is used to drive the packaging bag 10 to a vertical position. The bag opening mechanism 3 is located on one side of the storage mechanism 1. The bag opening mechanism 3 includes an adsorption component 31 and a bag opening box 32. The adsorption component 31 includes at least two adsorption elements 311, and the bag opening box 32 has a guide inside. The bag opening cavity has an upper opening, and the bag opening box 32 has opening holes 321 on two opposite sides. At least two adsorption members 311 can pass through the opening holes 321 on both sides of the bag opening box 32 and enter the bag opening cavity. The shifting mechanism 4 includes a shifting plate 41 and a shifting linear drive unit 42. There are two storage mechanisms 1. The two storage mechanisms 1 are spaced apart on the shifting plate 41 along the first direction. The shifting linear drive unit 42 is connected to the shifting plate 41 to drive the shifting plate 41 to move along the first direction.

[0047] Among them, such as Figures 5 to 7As shown, two storage mechanisms 1 are used to hold packaging bags 10. A shifting mechanism 4 switches the positions of the two storage mechanisms 1. After the packaging bags 10 in one storage mechanism 1 are taken out by the picking component 21, the shifting mechanism 4 moves the other storage mechanism 1, which is full of packaging bags 10, to below the picking component 21. The picking component 21 can pick up materials continuously, avoiding machine downtime. At this time, the operator can put packaging bags 10 into the empty storage mechanism 1. After the packaging bags 10 in the other storage mechanism 1, which is full of packaging bags 10, are taken out by the picking component 21, the shifting mechanism 4 moves this full storage mechanism 1 to below the picking component 21. This process is repeated to ensure that the picking component 21 is always in a state where materials can be picked up, avoiding machine downtime and effectively improving the working efficiency of loading packaging bags 10.

[0048] In addition, the steering component 22 drives the packaging bag 10 to be adjusted to a vertical position before it is placed into the bag opening mechanism 3 to open the bag opening. This eliminates the need for adjustment using conveyor belts or other mechanisms, resulting in better linkage and a smaller footprint, which is more conducive to cost control of small packaging.

[0049] In some embodiments, the shifting linear drive unit 42 is a linear cylinder, which is fast-acting, quick-responding, and more efficient.

[0050] In some other embodiments, the shifting linear drive unit 42 may also be other components with linear drive functions, such as a hydraulic cylinder or a linear module.

[0051] In some embodiments, such as Figures 5 to 7 As shown, the storage mechanism 1 includes a rotating plate 11, a side plate 12, a flipping assembly 13, a bottom plate 14, a flexible hinge, a storage linear drive unit 15, and two bases 16. The flipping assembly 13 is connected to the rotating plate 11 to drive the rotating plate 11 to rotate. The bottom plate 14 is located above the bases 16. The storage linear drive unit 15 is connected to the bottom plate 14 to drive the bottom plate 14 to move up and down. The rotating plate 11 and the side plate 12 are spaced apart on both sides of the bottom plate 14 along a first direction. The bottom of the rotating plate 11 is rotatably connected to one of the bases 16 through a flexible hinge. The bottom of the side plate 12 is connected to the other base 16. The rotating plate 11, the side plate 12, and the bottom plate 14 together form a storage cavity for placing the packaging bag 10. The packaging bag 10 is placed on the bottom plate 14. The rotating plate 11 and the side plate 12 together restrict the lateral movement of the packaging bag 10.

[0052] Specifically, two storage mechanisms 1 are used to hold packaging bags 10. A shifting mechanism 4 switches the positions of the two storage mechanisms 1. After the packaging bags 10 in one storage mechanism 1 are taken out by the picking component 21, the shifting mechanism 4 moves the other storage mechanism 1, which is full of packaging bags 10, to below the picking component 21. The picking component 21 can pick up materials continuously, avoiding machine downtime. At this time, the operator can use the flipping component 13 to drive the rotating plate 11 in the empty storage mechanism 1 to rotate, thereby opening the storage chamber. The operator can then put the packaging bags 10 into the empty storage mechanism 1. After the packaging bags 10 in the other storage mechanism 1, which is full of packaging bags 10, are taken out by the picking component 21, the shifting mechanism 4 moves this full storage mechanism 1 to below the picking component 21. This process is repeated to ensure that the picking component 21 is always in a state where materials can be picked up, avoiding machine downtime and effectively improving the working efficiency of loading packaging bags 10.

[0053] In some embodiments, such as Figure 7 and Figure 8 As shown, the flipping assembly 13 includes a flipping rod 131, a flipping elastic element 132, a wedge block 133, and two rollers 134. The flipping rod 131 passes through the base 16 in a vertical direction. The upper end of the flipping rod 131 is rotatably connected to one of the rollers 134, and the lower end of the flipping rod 131 is rotatably connected to the other roller 134. The flipping elastic element 132 is provided on the base 16 and is connected to the flipping rod 131 to drive the flipping rod 131 to move up and down. The bottom of the rotating plate 11 is provided with an inclined surface. One of the rollers 134 abuts against the inclined surface, and the other roller 134 can abut against the inclined surface on the wedge block 133.

[0054] Specifically, taking the storage mechanism 1 located on the left as an example, when there is a packaging bag 10 inside the storage mechanism 1, the rotating plate 11 is in a vertical state, and the upper roller 134 just abuts against the inclined surface of the rotating plate 11, while the lower roller 134 does not contact the wedge block 133. The rotating plate 11 and the roller 134 are both located to the right of the wedge block 133. When it is necessary to place the packaging bag 10 on the bottom plate 14 of the storage mechanism 1, the shifting mechanism 4 pushes the storage mechanism 1 to the left. The lower roller 134 contacts the inclined surface of the wedge block 133 and moves upward, thereby driving the flipping rod 131 and the upper roller 134 to move upward. During the upward movement, it will move relative to the inclined surface of the rotating plate 11, thereby pushing the rotating plate 11 to the left to flip it over. The operator can then place the packaging bag 10 on the base plate 14. After the packaging bag 10 is placed, the shifting mechanism 4 pushes the storage mechanism 1 to the right. The roller 134 located on the lower side will then leave the wedge block 133. The elasticity of the flipping elastic element 132 will drive the flipping rod 131 to move downward, thereby driving the two rollers 134 to move downward. The roller 134 located on the upper side will no longer push the rotating plate 11. The elasticity of the elastic hinge can drive the rotating plate 11 back to the vertical state. The rotating plate 11 and the side can then restrict the packaging bag 10 on the base plate 14.

[0055] Similarly, for the storage mechanism 1 on the right, when there is a packaging bag 10 inside the storage mechanism 1, the rotating plate 11 is in a vertical state, and the upper roller 134 just abuts against the inclined surface of the rotating plate 11, while the lower roller 134 does not contact the wedge block 133. The rotating plate 11 and the roller 134 are both located to the left of the wedge block 133. When it is necessary to place the packaging bag 10 on the bottom plate 14 of the storage mechanism 1, the shifting mechanism 4 pushes the storage mechanism 1 to the right. The lower roller 134 contacts the inclined surface of the wedge block 133 and moves upward, thereby driving the flipping rod 131 and the upper roller 134 to move upward. During the process, relative movement occurs between the rotating plate 11 and the inclined surface, which pushes the rotating plate 11 to the right. The operator can then place the packaging bag 10 on the base plate 14. After the packaging bag 10 is placed, the shifting mechanism 4 pushes the storage mechanism 1 to the left. The roller 134 on the lower side will then leave the wedge block 133. The elasticity of the flipping elastic element 132 will drive the flipping rod 131 to move downward, thereby driving the two rollers 134 to move downward. The roller 134 on the upper side will no longer push the rotating plate 11. The elasticity of the elastic hinge can drive the rotating plate 11 back to the vertical state. The rotating plate 11 and the side can then restrict the packaging bag 10 on the base plate 14.

[0056] Understandably, the two storage mechanisms 1 are symmetrically arranged. While changing the position of the two storage mechanisms 1, the shifting mechanism 4 can also open the rotating plate 11, thereby exposing the internal space of one of the storage mechanisms 1, making it convenient for the operator to place the packaging bag 10 on the base plate 14. Moreover, a flexible hinge is used to assist the rotating plate 11 in returning to its original position. One action of the shifting mechanism 4 can realize multiple operations, resulting in better linkage and higher work efficiency.

[0057] Specifically, the wedge block 133 can be fixed on a workbench to achieve the fixing function of the wedge block 133, so that the wedge block 133 can provide guidance for the roller 134.

[0058] Furthermore, the reversing elastic element 132 is a spring, which can provide a good restoring effect.

[0059] In some embodiments, such as Figure 7 and Figure 9 As shown, the packaging bag feeding and opening device also includes an adjustment mechanism 5, which is used to simultaneously adjust the distance between the rotating plate 11 and the side plate 12 in the two storage mechanisms 1; the storage mechanism 1 also includes a positive and negative threaded rod 17, which has a left-hand threaded part 171 and a right-hand threaded part 172, one of the bases 16 being threaded to the left-hand threaded part 171 and the other base 16 being threaded to the right-hand threaded part 172; the adjustment mechanism 5 includes an adjustment support frame 51 and an adjustment motor 52, both of which are located on the shift plate 41, and the adjustment motor 52 is connected to the positive and negative threaded rods 17 in the two storage mechanisms 1 respectively.

[0060] Specifically, a storage mechanism 1 is used to store the packaging bag 10. The packaging bag 10 can be placed between the rotating plate 11 and the side plate 12. The distance between the rotating plate 11 and the side plate 12 can be regarded as the width of the packaging bag 10. Since the rotating plate 11 and the side plate 12 are spaced apart, even if the length of the packaging bag 10 changes, it does not need to be adjusted. It only needs to be adjusted according to the change in the width of the packaging bag 10.

[0061] Taking one of the material storage mechanisms 1 as an example, the adjustment mechanism 5 can drive the positive and negative threaded rods 17 to rotate. When the positive and negative threaded rods 17 rotate, they will cause the rotating plate 11 and the side plate 12 to move closer or further apart, so as to make adaptive adjustments according to the width of the material.

[0062] More specifically, the adjustment mechanism 5 can drive the two positive and negative threaded rods 17 in the two storage mechanisms 1 to rotate simultaneously. That is, the width adjustment of the two storage mechanisms 1 can be achieved by using one adjustment mechanism 5, which is very convenient and has higher adjustment efficiency.

[0063] In some embodiments, such as Figure 7 and Figure 9 As shown, the adjustment mechanism 5 also includes a transmission gear set 53. The adjustment motor 52 is connected to the transmission gear set 53. The transmission gear set 53 is connected to the two positive and negative threaded rods 17 in the two storage mechanisms 1 respectively. Through the transmission gear set 53, the power of the adjustment motor 52 can be better transmitted to the two positive and negative threaded rods 17 in the two storage mechanisms 1, and the two positive and negative threaded rods 17 in the two storage mechanisms 1 can be driven to rotate more stably.

[0064] In some embodiments, such as Figure 7 and Figure 9 As shown, the transmission gear set 53 includes a driving gear 531 and a driven gear 532. The driven gear 532 meshes with the driving gear 531. The driving gear 531 is connected to the regulating motor 52. The driven gear 532 is connected to two positive and negative threaded rods 17 in the two storage mechanisms 1 respectively. Specifically, the driven gear 532 has a insertion hole in the middle, and the two positive and negative threaded rods 17 in the two storage mechanisms 1 can be inserted into the insertion hole. More specifically, the two positive and negative threaded rods 17 in the two storage mechanisms 1 can be inserted into the insertion hole by interference fit, thereby preventing relative rotation between the driven gear 532 and the two positive and negative threaded rods 17 in the two storage mechanisms 1. By using the driving gear 531 and the driven gear 532 to transmit power, the two positive and negative threaded rods 17 in the two storage mechanisms 1 can be driven to rotate more stably.

[0065] In some embodiments, such as Figure 7 and Figure 9As shown, there is one adjusting motor 52, one driving gear 531, and one driven gear 532. The driven gear 532 is connected to two positive and negative threaded rods 17 in the two storage mechanisms 1. More specifically, the driven gear 532 is connected to the left-hand threaded portion 171 of the positive and negative threaded rod 17 in the left storage mechanism 1, and the driven gear 532 is connected to the right-hand threaded portion 172 of the positive and negative threaded rod 17 in the right storage mechanism 1. The adjusting motor 52 transmits power to the driving gear 531, which in turn transmits power to the driven gear 532. The driven gear 532 drives the two positive and negative threaded rods 17 in the two storage mechanisms 1 to rotate. In order to achieve synchronous adjustment of the two storage mechanisms 1, it is necessary to simultaneously adjust the distance between the rotating plate 11 on the left and the side plate 12, as well as the distance between the rotating plate 11 on the right and the side plate 12. To increase the width of the distance between the moving plate 11 and the side plate 12, for example, the rotating plate 11 of the left storage mechanism 1 needs to be moved to the left, the side plate 12 of the left storage mechanism 1 needs to be moved to the right, the side plate 12 of the right storage mechanism 1 needs to be moved to the left, and the rotating plate 11 of the right storage mechanism 1 needs to be moved to the right. That is, the two side plates 12 near the driven gear 532 will move closer to each other. Therefore, the parts of the positive and negative threaded rods 17 in the left storage mechanism 1 connected to the driven gear 532 and the parts of the positive and negative threaded rods 17 in the right storage mechanism 1 connected to the driven gear 532 need to have opposite rotation directions to achieve the effect of moving closer or further apart. With this setting, the two storage mechanisms 1 can be adjusted simultaneously using one adjusting motor 52, which has higher adjustment efficiency, occupies less space, and has a higher space utilization rate.

[0066] In some other embodiments, the driven gear 532 is connected to the right-hand threaded portion 172 of the positive and negative threaded rod 17 in the left storage mechanism 1, and the driven gear 532 is connected to the left-hand threaded portion 171 of the positive and negative threaded rod 17 in the right storage mechanism 1, which can also achieve simultaneous adjustment of the two storage mechanisms 1.

[0067] In some other embodiments, the number of regulating motors 52 is one, the number of driving gears 531 is one, and the number of driven gears 532 is an even number, for example, two driven gears 532, both of which mesh with the driving gear 531. In this case, the two driven gears 532 rotate in opposite directions. It is understood that in order for the two side plates 12 near the driven gears 532 to move closer or further apart, the rotation direction of the threads connecting the two driven gears 532 needs to be the same. Therefore, in the driven gear 5... When the number of 32 is even, one driven gear 532 is connected to the left-hand threaded portion 171 of the left-hand threaded rod 17 and the other driven gear 532 is connected to the left-hand threaded portion 171 of the right-hand threaded rod 17. Alternatively, one driven gear 532 is connected to the right-hand threaded portion 172 of the left-hand threaded rod 17 and the other driven gear 532 is connected to the right-hand threaded portion 172 of the right-hand threaded rod 17. This connection method can also achieve the effect of simultaneously adjusting the two storage mechanisms 1, and the adjustment efficiency is higher.

[0068] In some embodiments, such as Figure 7 and Figure 9 As shown, the adjustment mechanism 5 also includes a guide column 54, which is located on the adjustment support frame 51. The guide column 54 passes through all the bases 16 along the first direction. Specifically, the storage mechanism 1 has guide columns 54 on both the front and rear sides. The guide columns 54 are fixedly connected to the adjustment support frame 51 and can provide guidance and support for the movement of the bases 16. During adjustment, the movement of the bases 16 is more stable.

[0069] Specifically, such as Figure 7 and Figure 9 As shown, the adjustment mechanism 5 also includes two adjustment limit plates 55, which are respectively located on the left and right sides of the guide column 54. The two positive and negative threaded rods 17 in the two storage mechanisms 1 are rotatably connected to the adjustment limit plates 55. The two adjustment limit plates 55 are fixedly connected to the guide column 54, which can disengage the base 16 from the positive and negative threaded rods 17 and provide good protection.

[0070] In some embodiments, the material storage linear drive unit 15 is a linear stepper motor, which has high control precision. As the packaging bags 10 are reduced one by one, the linear stepper motor can drive the base plate 14 to move up step by step, and better adapt to the feeding of the packaging bags 10, with a high-efficiency production cycle.

[0071] In some embodiments, such as Figures 5 to 7As shown, the storage mechanism 1 also includes a storage limiting plate 18 and a compensation component 19. The storage limiting plate 18 is connected to the top of the side plate 12 and the rotating plate 11. The compensation component 19 includes a compensation elastic member 191. One end of the compensation elastic member 191 is connected to the shift plate 41, and the other end of the compensation elastic member 191 is connected to the bottom plate 14. The compensation elastic member 191 is used to drive the bottom plate 14 toward the storage limiting plate 18. The compensation component 19 is used to compensate for the gap between the motor shaft of the linear stepper motor and the body.

[0072] In some embodiments, such as Figures 5 to 7 As shown, the compensation component 19 also includes a compensation limiting post 192. One end of the compensation limiting post 192 is connected to the base plate 14, and the other end of the compensation limiting post 192 is movably connected to the shift plate 41. The compensation elastic element 191 is a spring. The compensation elastic element 191 is sleeved on the compensation limiting post 192, which can better realize the compensation function.

[0073] Specifically, when the packaging bags 10 are fed, a storage linear drive unit 15 is used to change the position of the base plate 14. As the packaging bags 10 are fed one by one, the number of packaging bags 10 on the base plate 14 will decrease. When the number of packaging bags 10 decreases, the storage linear drive unit 15 drives the base plate 14 to move, making the volume of the storage cavity smaller, so that the volume of the storage cavity matches the number of packaging bags 10. This allows the packaging bags 10 to be tightly pressed between the base plate 14 and the storage limiting plate 18, preventing the packaging bags 10 from slipping, facilitating the clamping of the subsequent material handling component 21, avoiding deformation during clamping, and making subsequent processing steps more favorable. The quality of the packaging is also better guaranteed.

[0074] Furthermore, the axial clearance of the motor shaft is one of the indicators of its overall physical characteristics. It refers to the axial movement distance that the motor rotor must have under the premise that it is axially limited by parts such as the stator and end cover. It is also called axial runout. Due to the existence of this axial clearance, the linear stepper motor will have certain errors during use, which will cause the movement of the base plate 14 to lack a certain degree of accuracy. Therefore, by setting the compensation component 19, the base plate 14 is always kept in a tendency to move towards the storage limit plate 18, thereby making up for the error caused by the axial clearance, improving the accuracy of the movement of the base plate 14, and ensuring that the packaging bag 10 is tightly pressed between the base plate 14 and the storage limit plate 18 to prevent the packaging bag 10 from slipping.

[0075] More specifically, one end of the flipping elastic element 132 is connected to the shifting plate 41, and the other end of the flipping elastic element 132 is connected to the base plate 14. Specifically, the flipping elastic element 132 is used to keep the base plate 14 always moving towards the storage limiting plate 18, thereby compensating for the error caused by the axial gap, improving the accuracy of the movement of the base plate 14, and ensuring that the packaging bag 10 is tightly pressed between the base plate 14 and the storage limiting plate 18 to prevent the packaging bag 10 from slipping.

[0076] In some embodiments, such as Figures 1 to 4 As shown, the packaging bag feeding and opening device also includes a base plate 6. The storage mechanism 1 and the opening mechanism 3 are respectively located on both sides of the base plate 6. The storage mechanism 1 and the opening mechanism 3 are integrated on one base plate 6, which can reduce the footprint of the entire packaging bag feeding and opening device and is more conducive to cost control of small packaging.

[0077] In some embodiments, such as Figure 11 As shown, the material handling assembly 21 includes a flattening linear drive unit 211, a pressure plate 212, and a material handling vacuum suction cup 213. The flattening linear drive unit 211 is connected to the steering assembly 22 and the pressure plate 212. The pressure plate 212 is provided with an adsorption hole 214. The material handling vacuum suction cup 213 is located in the adsorption hole 214 and does not protrude from the surface of the pressure plate 212. The material handling vacuum suction cup 213 is connected to an external vacuum pump.

[0078] Specifically, a flattening linear drive unit 211 is used to drive the pressure plate 212 to press against the packaging bag 10, ensuring the flatness of the packaging bag 10. A material-grabbing vacuum suction cup 213 is used to pick up the packaging bag 10, thereby achieving the clamping function. Finally, a steering component 22 is used to drive the material-grabbing component 21 to rotate, which in turn drives the pressure plate 212 to rotate, thereby causing the packaging bag 10 on the pressure plate 212 to rotate. This allows the flat packaging bag 10 to be adjusted to a vertical state without the need for other processes to change the state of the packaging bag 10, reducing the overall footprint. Moreover, the state adjustment can be achieved during the clamping process of the material-grabbing component 21, making the material-grabbing component 21 more functional and more efficient.

[0079] In some embodiments, such as Figure 11As shown, the material handling assembly 21 also includes a flattening bracket 215 and a flattening elastic element 216. The flattening linear drive unit 211 is connected to the flattening bracket 215, one end of the flattening elastic element 216 is connected to the flattening bracket 215, and the other end of the flattening elastic element 216 is connected to the pressure plate 212. Specifically, the packaging bags 10 are generally laid flat, and multiple packaging bags 10 are stacked together. When clamping, the flattening linear drive unit 211 drives the pressure plate 212 to press against the packaging bags 10. When the pressure plate 212 presses against the packaging bags 10, the flattening elastic element 216 can also apply elastic force to the pressure plate 212. When the flattening linear drive unit 211 stops working, the pressure plate 212 can still press firmly on the packaging bags 10 to prevent the packaging bags 10 from moving, so that the flatness of the packaging bags 10 can be better guaranteed.

[0080] In some embodiments, such as Figure 11 As shown, the material handling assembly 21 also includes a material handling suction cup connecting rod 217. One end of the material handling suction cup connecting rod 217 is connected to the flattening bracket 215, and the other end of the material handling suction cup connecting rod 217 is connected to the material handling vacuum suction cup 213. The pressure plate 212 is provided with an adsorption hole 214, and the material handling vacuum suction cup 213 is located in the adsorption hole 214. The material handling vacuum suction cup 213 does not protrude from the surface of the pressure plate 212. Specifically, the material handling suction cup connecting rod 217 is provided with a connecting hole inside, and an external vacuum pump can be connected to the material handling vacuum suction cup 213 through the connecting hole to realize the adsorption function. The lower surface of the material handling vacuum suction cup 213 does not protrude from the lower surface of the pressure plate 212, that is, the lower surface of the material handling vacuum suction cup 213 is flush with the lower surface of the pressure plate 212, so that the flatness of the packaging bag 10 can be better guaranteed.

[0081] In some other embodiments, the lower surface of the material-picking vacuum suction cup 213 is slightly higher than the lower surface of the pressure plate 212. When clamping, the flattening linear drive unit 211 drives the pressure plate 212 to press against the packaging bag 10. Due to the presence of the flattening elastic element 216, it is possible that the pressure plate 212 will not move, but the material-picking vacuum suction cup 213 will continue to press down slightly. The fact that the lower surface of the material-picking vacuum suction cup 213 is slightly higher than the lower surface of the pressure plate 212 ensures that even if the material-picking vacuum suction cup 213 continues to press down slightly, the material-picking vacuum suction cup 213 will not protrude from the lower surface of the pressure plate 212, so that the flatness of the packaging bag 10 can be better guaranteed.

[0082] In some embodiments, such as Figure 11As shown, the material handling assembly 21 also includes a flattening link 218. One end of the flattening link 218 is connected to the pressure plate 212, and the other end of the flattening link 218 is movably connected to the flattening bracket 215. Due to the presence of the flattening elastic element 216, even if the pressure plate 212 has already pressed onto the packaging bag 10, the flattening linear drive unit 211 can still move slightly downward. There will also be a slight relative displacement between the pressure plate 212 and the flattening bracket 215. The setting of the flattening link 218 can provide space for this displacement, so that the pressure plate 212 can better press the packaging bag 10, and the flatness of the packaging bag 10 can be better guaranteed.

[0083] In some embodiments, the flattening elastic element 216 is a spring, which is sleeved on the flattening connecting rod 218. The spring can apply a uniform elastic force to ensure the stability of the overall structure.

[0084] In some other embodiments, the flattening elastic element 216 may also be an elastic component such as a sheet or rubber.

[0085] In some embodiments, the flattening linear drive unit 211 is a linear cylinder, which is fast-acting, quick-responding, and more efficient.

[0086] In some other embodiments, the flattening linear drive unit 211 may also be a hydraulic cylinder or a linear module or other components with linear drive function.

[0087] In some embodiments, such as Figure 11 As shown, the steering assembly 22 includes a steering cylinder 221, which is connected to the flattening linear drive unit 211.

[0088] Specifically, the steering cylinder 221 drives the flattening linear drive unit 211 to rotate, which in turn drives the pressure plate 212 to rotate, thereby causing the packaging bag 10 on the pressure plate 212 to rotate. This allows the flat packaging bag 10 to be adjusted to a vertical position without the need for other processes to change the state of the packaging bag 10, thus reducing the overall footprint. Moreover, the state can be adjusted during the clamping process, making the material handling component 21 more functional and more efficient.

[0089] In some other embodiments, the steering cylinder 221 can be replaced by a steering motor, which drives the flattening linear drive unit 211 to rotate, thus achieving the same function of adjusting the state of the pressure plate 212.

[0090] In some embodiments, such as Figure 11 As shown, the steering mechanism also includes a steering support plate 222, a steering cylinder 221 is disposed on the steering support plate 222, the steering support plate 222 is disposed on the base plate 6, and the steering support plate 222 can improve the stability of the steering assembly 22 when it is working.

[0091] In some embodiments, such as Figure 2 , Figure 4 and Figure 10 As shown, the bag opening mechanism 3 also includes a first displacement component 33 and a linkage component 34. The first displacement component 33 is connected to at least one adsorption element 311, and the linkage component 34 is connected to at least two adsorption elements 311 to drive at least two adsorption elements 311 to move closer to or further away from each other.

[0092] Specifically, when opening the bag, the packaging bag 10 is placed in the opening cavity with the opening facing upwards. The suction member 311 can grasp the front and back sides of the packaging bag 10. The first displacement component 33 drives the suction members 311 to move away from each other. During this process, one suction member 311 can move while the other suction member 311 remains stationary, or both suction members 311 can move simultaneously. This can also open the packaging bag 10 to expose its internal space. It is only necessary to ensure that at least two suction members 311 are located on the front and back sides of the packaging bag 10.

[0093] More specifically, the front and rear sides of the bag opening box 32 are provided with bag opening holes 321 that communicate with the bag opening cavity. The adsorption member 311 can enter the bag opening cavity through the bag opening hole 321, thereby grabbing both sides of the packaging bag 10 and performing the bag opening operation. The adsorption member 311 is placed outside the bag opening box 32 and then enters the bag opening cavity to open the bag. When opening the bag, the adsorption member 311 can also leave the bag opening cavity as much as possible, thereby reducing the space occupied by the adsorption member 311 in the bag opening cavity, and can more fully open the packaging bag 10, resulting in a better bag opening effect.

[0094] In some embodiments, such as Figure 2 , Figure 4 and Figure 10 As shown, the first displacement component 33 includes a first linear drive unit 331 and two opening plates 332. At least two adsorption elements 311 are respectively disposed on the two opening plates 332. The linkage component 34 is respectively connected to the two opening plates 332. The first linear drive unit 331 is connected to one of the opening plates 332 to drive one of the opening plates 332 to move along the second direction.

[0095] Specifically, there are two adsorption elements 311, which are respectively set on two opening plates 332. The linkage component 34 is connected to the two opening plates 332 to drive the two opening plates 332 to move closer or further apart. The linkage component 34 drives the two opening plates 332 to move closer or further apart, which improves the linkage and makes the movement of the adsorption elements 311 on the two opening plates 332 synchronized. The force on the packaging bag 10 is more uniform, and the bag-holding effect is better.

[0096] In some other embodiments, the number of opening holes 321 corresponds to the number of adsorption elements 311, and the number of adsorption elements 311 can also be three, for example, two located on the front and rear sides of the opening box 32, and one located on the left or right side of the opening box 32. The number of adsorption elements 311 can also be four, for example, two located on the left and right sides of the opening box 32, and two located on the front and rear sides of the opening box 32. When the packaging bag 10 is opened on the left and right sides, it can also be opened on the front and rear sides, resulting in a better opening effect. It is understood that the number of adsorption elements 311 can be changed according to actual needs, as long as it is ensured that adsorption elements 311 are provided on both sides when the packaging bag 10 is in a flat state.

[0097] In some embodiments, such as Figure 10 As shown, the linkage assembly 34 includes a guide rod 341, a guide seat 342, a linkage slider 343, a first connecting rod 344, and a second connecting rod 345. The guide rod 341 extends along a second direction, and both opening plates 332 are slidably connected to the guide rod 341. The guide seat 342 is located between the two opening plates 332. The linkage slider 343 is slidably connected to the guide seat 342 in a vertical direction. One end of the first connecting rod 344 is rotatably connected to the slider, and the other end of the first connecting rod 344 is rotatably connected to one of the opening plates 332. One end of the second connecting rod 345 is rotatably connected to the slider, and the other end of the second connecting rod 345 is rotatably connected to the other opening plate 332.

[0098] Specifically, the guide rod 341 extends in the left-right direction, and the two opening plates 332 can move in the front-back direction on the guide rod 341. The guide seat 342 is provided with a linkage groove 346 extending in the vertical direction. The linkage slider 343 is slidably connected to the linkage groove 346 and can move up and down. The front end of the first connecting rod 344 is rotatably connected to the front opening plate 332, and the rear end of the first connecting rod 344 is rotatably connected to the linkage slider 343. The front end of the second connecting rod 345 is rotatably connected to the linkage slider 343, and the rear end of the second connecting rod 345 is rotatably connected to the rear opening plate 332. When the side opening plate 332, located at the rear, moves forward toward the opening box 32, the front end of the second connecting rod 345 moves upward, thereby driving the linkage slider 343 to move upward. At this time, the rear end of the first connecting rod 344 moves upward, thereby driving the front end of the first connecting rod 344 to gradually approach the opening box 32, that is, driving the front opening plate 332 to move backward toward the opening box 32. Finally, the opening components on both the front and rear sides move toward the opening box 32 at the same time, realizing the synchronous movement of the opening components on both the front and rear sides. The structure is simple and the synchronization effect is good.

[0099] In some embodiments, there are two guide rods 341, which are spaced apart in the vertical direction. Both bag opening plates 332 are slidably connected to the two guide rods 341, which can make the movement of the bag opening plates 332 more stable.

[0100] In some embodiments, there are two linkage components 34, which are located on the front and rear sides of the bag opening box 32, respectively, resulting in better linkage effect and more stable movement.

[0101] In some embodiments, such as Figure 2 , Figure 4 and Figure 10 As shown, the bag opening mechanism 3 also includes a bag opening support plate 35, one end of the guide rod 341 is connected to the base plate 6, and the other end of the guide rod 341 is connected to the bag opening support plate 35. The first linear drive unit 331 is disposed on the bag opening support plate 35 and connected to the bag opening plate 332 located on the rear side. The base plate 6 and the bag opening support plate 35 can provide good support for the operation of the bag opening mechanism 3.

[0102] In some other embodiments, the first linear drive unit 331 may also be disposed on the substrate 6 and connected to the bag opening plate 332 located on the front side, which can also drive the two adsorption members 311 to move synchronously.

[0103] In some embodiments, multiple adsorption elements 311 are provided on both the left and right sides of the bag opening box 32. The adsorption elements 311 can grip the packaging bag 10 more evenly and stably, resulting in a better bag-holding effect.

[0104] In some embodiments, such as Figure 10 As shown, the adsorption component 311 includes a bag-opening vacuum suction tube 3111 and a bag-opening vacuum suction cup 3112. The bag-opening vacuum suction tube 3111 is located on the bag-opening plate 332 and is connected to the bag-opening vacuum suction cup 3112. Specifically, the bag-opening vacuum suction tube 3111 is connected to an external vacuum pump. The bag-opening vacuum suction cups 3112 on both sides can adsorb the two sides of the packaging bag 10, thereby pulling open the two sides of the packaging bag 10 under the drive of the first linear drive unit 331, realizing the bag-opening operation of the packaging bag 10. By adopting the vacuum adsorption method, the packaging bag 10 can be gripped more stably, the bag-opening process is more stable, and the bag-opening effect is better.

[0105] In some embodiments, such as Figure 2 and Figure 4 As shown, the packaging bag feeding and opening device also includes a feeding mechanism 7. The feeding mechanism 7 includes a storage hopper 71, a second displacement component 72 and a discharging component 73. The second displacement component 72 is connected to the storage hopper 71 to drive the storage hopper 71 to move above the opening cavity. The bottom of the storage hopper 71 is provided with a discharging port. The discharging component 73 is used to open or close the discharging port.

[0106] Specifically, during the process of placing the packaging bag 10 into the opening cavity, space needs to be left above the opening box 32 for placing the packaging bag 10. Therefore, the storage hopper 71 cannot remain directly above the opening box 32 indefinitely. After the packaging bag 10 is placed into the opening cavity, the opening operation is performed. Simultaneously, the second displacement component 72 drives the storage hopper 71 to move above the packaging bag 10. After the opening is completed, the storage hopper 71 also moves directly above the opening cavity. The discharging component 73 opens the discharging port, and the material in the storage hopper 71 can enter the packaging bag 10 in the opening cavity through the discharging port. It can be understood that the opening and discharging processes can be performed as simultaneously as possible, and the two processes are no longer separate. The two processes have a high degree of linkage, effectively improving production efficiency. In addition, the integration of the opening and discharging processes eliminates the need for conveyor belts, reducing the footprint of the entire production line and facilitating cost control for small packaging.

[0107] In some embodiments, such as Figure 2 and Figure 4 As shown, the second displacement component 72 includes a second linear drive unit 721 and a third linear drive unit 722. The second linear drive unit 721 is connected to the storage hopper 71 to drive the storage hopper 71 to move in the vertical direction. The third linear drive unit 722 is connected to the second linear drive unit 721 to drive the second linear drive unit 721 to move in the second direction.

[0108] Specifically, space needs to be left above the bag opening box 32 to place the packaging bag 10. Therefore, the storage hopper 71 cannot stay directly above the bag opening box 32. After the packaging bag 10 is placed into the bag opening cavity, the bag opening operation is performed. At the same time as the bag is opened, the third linear drive unit 722 drives the second linear drive unit 721 to move the storage hopper 71 to directly above the bag opening cavity. The second linear drive unit 721 then drives the storage hopper 71 to directly above the bag opening cavity before the material feeding operation is performed. This can improve the linkage between bag opening and material feeding as much as possible without affecting the placement of the packaging bag 10, thereby improving work efficiency.

[0109] In some embodiments, the third linear drive unit 722 is disposed on the substrate 6, which can improve the stability of the storage hopper 71 when it moves.

[0110] In some embodiments, the first linear drive unit 331, the second linear drive unit 721, and the third linear drive unit 722 are all linear cylinders. In some other embodiments, the first linear drive unit 331, the second linear drive unit 721, and the third linear drive unit 722 may also be components with linear drive functions, such as hydraulic cylinders or linear modules.

[0111] In some embodiments, such as Figure 2 and Figure 4As shown, the discharge assembly 73 includes a discharge cylinder 731 and a discharge baffle 732. The discharge baffle 732 is located below the discharge port. The discharge cylinder 731 is connected to the discharge baffle 732 to drive the discharge baffle 732 to open or close the discharge port. Specifically, the discharge baffle 732 is rotatably connected to the storage hopper 71 via a rotating shaft, and the discharge port can be opened or closed by rotation. One end of the discharge cylinder 731 is rotatably connected to the outer wall of the storage hopper 71, and the other end of the discharge cylinder 731 is rotatably connected to the middle of the discharge baffle 732. The discharge cylinder 731 is used to drive the discharge baffle 732 to rotate around the rotating shaft to open or close the discharge port. The action response is faster when driven by the discharge cylinder 731.

[0112] In some embodiments, such as Figure 2 and Figure 4 As shown, the feeding assembly 73 also includes a feeding hopper 733. The bottom of the feeding hopper 733 is provided with a feeding port, which is connected to the discharge port. The feeding hopper 733 is detachably connected to the bottom of the storage hopper 71. For example, the feeding hopper 733 can be installed at the bottom of the storage hopper 71 by a snap-fit. The feeding baffle 732 is located between the feeding hopper 733 and the storage hopper 71. Different feeding hoppers 733 can be replaced according to different packaging bags 10, so that the feeding port can better fit the bag opening of the packaging bag 10 and the feeding effect is better.

[0113] In some embodiments, such as Figure 2 and Figure 4 As shown, the packaging bag feeding and opening device also includes a bag placement auxiliary mechanism 8. The bag placement auxiliary mechanism 8 includes a bag placement guide plate 81 and a bag placement buffer. The bag placement guide plate 81 is located above the opening box 32. The bag placement guide plate 81 is connected to the base plate 6 through the bag placement buffer. Specifically, the bag placement guide plate 81 is located above the opening box 32. In the original state, the bag placement guide plate 81 is located directly above the opening box 32. When placing the bag, the steering component 22 drives the material taking component 21 to adjust the packaging bag 10 to a vertical state. The flattening linear drive unit 211 drives the pressure plate 212 to press the packaging bag 10 against the bag placement guide plate 81 so that the packaging bag 10 fits against the bag placement guide plate 81. When the material taking vacuum suction cup 213 stops suction, the packaging bag 10 can enter the opening cavity along the bag placement guide plate 81, which can play a good guiding role and ensure that the packaging bag 10 can enter the opening box 32.

[0114] More specifically, such as Figure 2 and Figure 4As shown, the bag-feeding buffer includes a bag-feeding guide shaft 82 and a bag-feeding spring 83. The bag-feeding guide plate 81 is movably connected to the base plate 6 through the bag-feeding guide shaft 82 and can move back and forth. The bag-feeding spring 83 is sleeved on the bag-feeding guide shaft 82. The second displacement component 72 drives the storage hopper 71 to move above the packaging bag 10. By setting the bag-feeding buffer, the storage hopper 71 can also push the bag-feeding guide plate 81 forward, making room above the bag opening box 32, so that the storage hopper 71 can move to the top of the bag opening cavity and feed the material. After feeding the material, when the storage hopper 71 leaves, the bag-feeding guide plate 81 can also return to the top of the bag opening cavity under the elastic force of the bag-feeding spring 83. The automation level is higher, the linkage is better, and the working efficiency is higher.

[0115] In some embodiments, such as Figure 1 As shown, the packaging bag feeding and opening device also includes a laser coding machine 9. The laser coding machine 9 is located on the base plate 6 and above the storage mechanism 1. The laser coding machine 9 is used to code the packaging bag 10. Being located above the storage mechanism 1 makes coding more convenient.

[0116] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A packaging bag feeding and opening device, characterized in that, include: A storage mechanism (1) is used to place packaging bags (10). The storage mechanism (1) includes a rotating plate (11), a side plate (12), a flipping assembly (13), a base plate (14), a flexible hinge, a storage linear drive unit (15), and two bases (16). The flipping assembly (13) is connected to the rotating plate (11) to drive the rotating plate (11) to rotate. The base plate (14) is located above the bases (16). The storage linear drive unit (15) is connected to the side plate (12) to drive the rotating plate (11) to rotate. The base plate (14) is connected to drive the base plate (14) to move up and down. The rotating plate (11) and the side plate (12) are spaced apart on both sides of the base plate (14) along the first direction. The bottom of the rotating plate (11) is rotatably connected to one of the bases (16) through the elastic hinge. The bottom of the side plate (12) is connected to the other base (16). The rotating plate (11), the side plate (12) and the base plate (14) together form a storage cavity for placing the packaging bag (10). The feeding mechanism (2) includes a picking component (21) and a steering component (22). The picking component (21) is used to pick up the packaging bag (10). The steering component (22) is connected to the picking component (21) and is used to drive the packaging bag (10) to adjust to a vertical state. The bag opening mechanism (3) is located on one side of the storage mechanism (1). The bag opening mechanism (3) includes an adsorption component (31) and a bag opening box (32). The adsorption component (31) includes at least two adsorption elements (311). The bag opening box (32) has an upward-opening bag opening cavity inside. The bag opening box (32) has bag opening holes (321) on two opposite sides. At least two adsorption elements (311) can pass through the bag opening holes (321) on both sides of the bag opening box (32) and enter the bag opening cavity. The shifting mechanism (4) includes a shifting plate (41) and a shifting linear drive unit (42). The number of the storage mechanisms (1) is two. The two storage mechanisms (1) are spaced apart on the shifting plate (41) along a first direction. The shifting linear drive unit (42) is connected to the shifting plate (41) to drive the shifting plate (41) to move along the first direction. The flipping assembly (13) includes a flipping rod (131), a flipping elastic element (132), a wedge block (133), and two rollers (134). The flipping rod (131) extends vertically through the base (16). The upper end of the flipping rod (131) is rotatably connected to one of the rollers (134), and the lower end of the flipping rod (131) is rotatably connected to the other roller (134). The flipping elastic element (132) is located on the base (16) and is connected to the flipping rod (131) to drive the flipping rod (131) to move up and down. The bottom of the rotating plate (11) is provided with an inclined surface, and one of the rollers (134) 134) Abuts against the inclined surface, and another roller (134) can abut against the inclined surface on the wedge block (133); when the shifting linear drive unit (42) drives the shifting plate (41) to move the storage mechanism (1) along the first direction, the lower roller (134) of the storage mechanism (1) abuts against the inclined surface of the wedge block (133) and moves upward, thereby driving the flipping rod (131) to move upward and push the rotating plate (11) to flip around the elastic hinge; when the shifting plate (41) moves back to reset along the first direction, the roller (134) disengages from the wedge block (133), the flipping elastic element (132) drives the flipping rod (131) to move downward, and the elastic hinge drives the rotating plate (11) to reset to the vertical state; Adjustment mechanism (5) is used to simultaneously adjust the distance between the rotating plate (11) and the side plate (12) in the two storage mechanisms (1).

2. The packaging bag feeding and opening device according to claim 1, characterized in that, The storage mechanism (1) further includes a positive and negative threaded rod (17), which has a left-hand threaded part (171) and a right-hand threaded part (172). One of the bases (16) is threaded to the left-hand threaded part (171), and the other base (16) is threaded to the right-hand threaded part (172). The adjustment mechanism (5) includes an adjustment support frame (51) and an adjustment motor (52). The adjustment support frame (51) and the adjustment motor (52) are both located on the shift plate (41). The adjustment motor (52) is connected to the positive and negative threaded rods (17) in the two storage mechanisms (1).

3. The packaging bag feeding and opening device according to claim 1, characterized in that, The storage mechanism (1) further includes a storage limiting plate (18) and a compensation component (19). The storage limiting plate (18) is connected to the top of the side plate (12) and the rotating plate (11). The compensation component (19) includes a compensation elastic element (191). One end of the compensation elastic element (191) is connected to the shift plate (41), and the other end of the compensation elastic element (191) is connected to the bottom plate (14).

4. The packaging bag feeding and opening device according to claim 1, characterized in that, The material handling assembly (21) includes a flattening linear drive unit (211), a pressure plate (212), and a material handling vacuum suction cup (213). The flattening linear drive unit (211) is connected to the steering assembly (22), and the flattening linear drive unit (211) is connected to the pressure plate (212). The pressure plate (212) is provided with an adsorption hole (214), and the material handling vacuum suction cup (213) is located in the adsorption hole (214). The material handling vacuum suction cup (213) does not protrude from the surface of the pressure plate (212), and the material handling vacuum suction cup (213) is connected to an external vacuum pump.

5. The packaging bag feeding and opening device according to claim 1, characterized in that, The bag opening mechanism (3) further includes a first displacement component (33) and a linkage component (34). The first displacement component (33) is connected to at least one of the adsorption elements (311), and the linkage component (34) is connected to at least two of the adsorption elements (311) to drive at least two of the adsorption elements (311) to move closer to or further away from each other.

6. The packaging bag feeding and opening device according to claim 5, characterized in that, The first displacement component (33) includes a first linear drive unit (331) and two opening plates (332). At least two of the adsorption elements (311) are respectively disposed on the two opening plates (332). The linkage component (34) is respectively connected to the two opening plates (332). The first linear drive unit (331) is connected to one of the opening plates (332) to drive one of the opening plates (332) to move along the second direction.

7. The packaging bag feeding and opening device according to claim 6, characterized in that, The linkage assembly (34) includes a guide rod (341), a guide seat (342), a linkage slider (343), a first connecting rod (344), and a second connecting rod (345). The guide rod (341) extends along the second direction. Both of the opening plates (332) are slidably connected to the guide rod (341). The guide seat (342) is located between the two opening plates (332). The linkage slider (343) is slidably connected to the guide seat (342) in the vertical direction. One end of the first connecting rod (344) is rotatably connected to the slider, and the other end of the first connecting rod (344) is rotatably connected to one of the opening plates (332). One end of the second connecting rod (345) is rotatably connected to the slider, and the other end of the second connecting rod (345) is rotatably connected to the other opening plate (332).

8. The packaging bag feeding and opening device according to claim 6, characterized in that, The adsorption component (311) includes a bag-opening vacuum suction tube (3111) and a bag-opening vacuum suction cup (3112). The bag-opening vacuum suction tube (3111) is disposed on the bag-opening plate (332) and is connected to the bag-opening vacuum suction cup (3112).

9. The packaging bag feeding and opening device according to claim 1, characterized in that, The packaging bag feeding and opening device also includes a feeding mechanism (7), which includes a storage hopper (71), a second displacement component (72), and a discharging component (73). The second displacement component (72) is connected to the storage hopper (71) to drive the storage hopper (71) to move above the opening cavity. The bottom of the storage hopper (71) is provided with a discharging port, and the discharging component (73) is used to open or close the discharging port.

10. The packaging bag feeding and opening device according to claim 1, characterized in that, The packaging bag feeding and opening device also includes a base plate (6), the storage mechanism (1) and the opening mechanism (3) are respectively located on both sides of the base plate (6), the packaging bag feeding and opening device also includes a bag placement guide plate (81) and a bag placement buffer, the bag placement guide plate (81) is located above the opening box (32), and the bag placement guide plate (81) is connected to the base plate (6) through the bag placement buffer.

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