Packaging device

Abstract

The utility model relates to a packaging device. The packaging device comprises a conveying mechanism and a fixing part. Wherein the fixed part is provided with a bag opening part, and the bag opening part comprises a first air suction piece, a second air suction piece, a bag opening driving device and an air source device. The first air suction part and the second air suction part suck external air through the air suction ports, negative pressure adsorption force is generated at the air suction ports, the bag opening driving device drives the first air suction part and the second air suction part to be close to or away from each other, and the air suction port of the first air suction part and the air suction port of the second air suction part are connected with bag bodies on the two opposite sides of a packaging bag in an adsorption mode respectively. Under the driving of the bag opening driving device, the air suction ports of the first air suction part and the second air suction part are close to each other and abut against bag bodies on the two sides of the packaging bag for adsorption connection and are far away from each other so that the bag bodies adsorbed by the air suction ports can be separated from each other, and the opening area of the packaging bag can be enlarged. The air source device is suitable for blowing air into the packaging bag through the opening of the packaging bag after the opening area of the packaging bag is enlarged, and filling materials after the packaging bag is opened, so that the space utilization rate of the packaging bag is improved.

Description

Technical Field

[0001] The present application relates to the technical field of packaging devices, and in particular to a packaging device. Background Art

[0002] The bag-feeding packaging device is a device that clamps the packaging bag, opens the packaging bag, and then transfers it to the filling station to add materials into the opened packaging bag, thereby obtaining a finished product after the materials are packaged. Existing packaging devices, such as patent document CN103770973B, only use the adsorption of the suction part and the drive of the drive part to separate the bag bodies on both sides of the opening end of the packaging bag and expand the opening end of the packaging bag. In actual use, it is found that the packaging bags that have been opened by this type of bag opening device, the two sides of the bag body on the end away from the opening are still attached together and have not been separated. Filling the material into the packaging bag in this state,

[0003] It is very easy for the material to accumulate and overflow at the opening end of the packaging bag before the space at the end of the packaging bag away from the opening is fully expanded. Therefore, it is necessary to stop filling the material, resulting in low space utilization of the packaging bag and increased cost of packaging materials.

[0004] Therefore, how to improve the space utilization rate of the packaging bag and save packaging costs has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to improve the space utilization rate inside a packaging bag and save packaging costs, the present application provides a packaging device.

[0006] A packaging device is provided to achieve the purpose of the utility model, comprising:

[0007] Suitable for filling materials into a packaging bag with an opening at one end, comprising: a conveying mechanism and a fixing part;

[0008] The conveying mechanism is provided with a connecting part, and two clamping members are arranged opposite to each other at one end of the connecting part away from the conveying mechanism, respectively used to clamp the opposite sides of the opening end of the packaging bag, and along the conveying direction of the clamping members, the fixing part is provided with a bag opening part and a filling part in sequence;

[0009] The bag opening part comprises a first suction piece, a second suction piece, a bag opening driving device and an air source device, the first suction piece and the second suction piece are both provided with a suction port, which is suitable for sucking external air through the suction port to generate a negative pressure adsorption force at the suction port, the bag opening driving device is suitable for driving the first suction piece and the second suction piece to approach or move away from each other, the suction port of the first suction piece and the suction port of the second suction piece are arranged relatively to each other along the driving direction of the bag opening driving device, and the connecting line of the two intersects with the transmission track at a point in the middle of the connecting line of the two clamping pieces, which are used for respectively adsorbing and connecting the bag bodies on the opposite sides of the packaging bag, and under the drive of the bag opening driving device, the suction ports of the first and second suction pieces approach each other and respectively abut the bag bodies on both sides of the packaging bag for adsorption connection, and move away from each other to separate the bag bodies adsorbed by the suction ports, thereby expanding the opening area of ​​the packaging bag;

[0010] The air flow trajectory output by the air source device intersects with the transmission trajectory at a point on the connecting line of the two clamps. The air source device is suitable for blowing air into the packaging bag through the opening of the packaging bag to open the packaging bag after the opening area of ​​the packaging bag is expanded. The filling part is suitable for filling materials into the packaging bag.

[0011] Compared with the existing packaging devices, the present application can open the bag more fully, improve the utilization rate of the space inside the packaging bag, and save packaging costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A top view showing a packaging device according to an embodiment of the present application;

[0013] Figure 2 A top view of a packaging device according to an embodiment of the present application is shown;

[0014] Figure 3 A schematic diagram showing the structure of a transmission mechanism according to an embodiment of the present application;

[0015] Figure 4 A side sectional structural diagram of a packaging device according to an embodiment of the present application is shown;

[0016] Figure 5 A schematic diagram showing the structure of a packaging bag according to an embodiment of the present application;

[0017] Figure 6 A structural diagram showing a packaging bag being clamped by a clamping member and before being opened by a bag opening unit;

[0018] Figure 7 The structure diagram shows that after the bag opening part has opened the bag, the clamping member clamps the packaging bag, and the packaging bag will be transported to the filling part in this shape for filling;

[0019] Figure 8Shows a partial enlarged view of the bag-opening station after the bag-opening process and before the packaging bag is conveyed and removed.

[0020] Rotating shaft 100, clamping member 110, conveying drive device 120, fixing portion 200, printing portion 300, first suction member 410, second suction member 420, bag-opening drive device 430, air source device 440, output end 441 of the air source device, filling portion 510, vibrating portion 520, position adjustment drive device 530, drive end 531 of the position adjustment drive device, packaging portion 540, heating head 541, vacuum extraction device 600, pressing portion 610, adjustment drive device 620, finished product conveying track 700, packaging bag 800, vacuum port 810. Detailed implementation manners

[0021] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0022] To better illustrate the present application, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present application can still be implemented without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0023] Figure 1 Shows a top view of the packaging device according to an embodiment of the present application; Figure 2 Shows a top view of the packaging device according to an embodiment of the present application; Figure 3 Shows a structural schematic diagram of the conveying mechanism according to an embodiment of the present application. Figures 1-3 In the embodiment, the rotating shaft is provided with 8 connecting portions, and 16 clamping members are circumferentially distributed and have overlapping rotation trajectories. Figure 4 Shows a side sectional structural diagram of the packaging device according to an embodiment of the present application; Figure 5 Shows a structural schematic diagram of the packaging bag according to an embodiment of the present application; Figures 6 to 8 Shows the shape change of the packaging bag under the action of the bag-opening portion according to the same embodiment of the present application, where: Figure 6 Shows a structural diagram of the packaging bag before being opened by the bag-opening portion under the clamping of the clamping member; Figure 7 Shows a structural diagram of the packaging bag under the clamping of the clamping member after being opened by the bag-opening portion. The packaging bag will be conveyed to the filling portion for filling while maintaining this form; Figure 8 Shows a partial enlarged view of the bag-opening station after the bag-opening process and before the packaging bag is conveyed and removed. Figure 8After the state is reached, the suction work of the first suction member and the second suction member will be stopped, and the suction connection between the first suction member and the second suction member and the packaging bag will be released. Then, the first suction member and the second suction member will be driven away from each other by the bag opening driving device. Figure 8 The first suction member in the air source device moves upward, the second suction member moves downward, the air supply at the output end of the air source device stops, the transmission drive device is used to drive the rotating shaft to rotate, and the clamping member and the packaging bag clamped by it are moved from Figure 8 Rotate to the left side.

[0024] The present application provides a packaging device, which is suitable for filling materials into a packaging bag 800 with an opening at one end, and includes: a packaging bag 800, a conveying mechanism and a fixing part 200.

[0025] The conveying mechanism is provided with a connecting portion, and two clamping members 110 are arranged opposite to one end of the connecting portion away from the conveying mechanism, for clamping the opposite sides of the opening end of the packaging bag 800. Along the conveying direction of the clamping member 110, the fixing portion 200 is provided with a bag opening portion and a filling portion in sequence;

[0026] The bag opening part includes a first air suction member 410, a second air suction member 420, a bag opening driving device 430 and an air source device 440. The first air suction member 410 and the second air suction member 420 are both provided with an air suction port, which is suitable for sucking external air through the air suction port to generate a negative pressure adsorption force at the air suction port. The bag opening driving device 430 is suitable for driving the first air suction member 410 and the second air suction member 420 to move closer to or away from each other. The air suction port of the first air suction member 410 and the air suction port of the second air suction member 420 are arranged along the opening. The driving directions of the bag driving device 430 are arranged opposite to each other, and the connecting line of the two intersects with the transmission track at a point in the middle of the connecting line of the two clamping members 110 of a connecting part, which are used to respectively adsorb and connect the bag bodies on opposite sides of the packaging bag 800. Under the drive of the bag opening driving device 430, the suction ports of the first and second suction members (410 and 420) are close to each other and respectively abut against the bag bodies on both sides of the packaging bag 800 for adsorption connection, and are away from each other so that the bag bodies adsorbed by the suction ports are separated from each other, thereby expanding the opening area of ​​the packaging bag 800.

[0027] The air flow trajectory output by the air source device 440 intersects with the transmission trajectory at a point on the connecting line of the two clamping members 110. The air source device 440 is suitable for blowing air into the packaging bag 800 through the opening of the packaging bag 800 after the opening of the packaging bag 800 is expanded, so as to open the packaging bag 800. The filling part is suitable for filling materials into the packaging bag 800.

[0028] The packaging device provided by this application includes a conveying mechanism that conveys the packaging bag 800 clamped by the clamping member 110 to the bag-opening device (hereinafter referred to as the bag-opening station) and stops. The bag-opening device performs bag-opening processing, and then conveys the packaging bag 800 clamped by the clamping member 110 to the filling section and stops, and fills the opened packaging bag 800 with materials. After obtaining the finished product, the clamping member 110 is loosened, the connection to the packaging bag 800 is released, and the packaging bag 800 filled with materials is removed to obtain the packaged finished product.

[0029] It should be noted that the clamping member 110, also known as a gripper, is a device that holds an object and then manipulates the object, and can clamp and release the object while performing certain actions. Clamping connection and releasing disconnection are the most basic and original functions of the clamping member 110. In addition, this application does not specifically limit the structure of the clamping member 110 and the clamping release method, as long as it can clamp and connect the packaging bag 800 to facilitate the transportation and conveyance of the packaging bag 800, and can release the clamping to remove the packaged finished product.

[0030] The bag opening device provided by the present application generates negative pressure adsorption force at the air inlet by setting the first air suction member 410 and the second air suction member 420. The bag opening driving device 430 is also set to drive the air inlets of the first air suction member 410 and the second air suction member 420 to approach each other to abut the bag bodies on the opposite sides of the packaging bag 800. The two air inlets are arranged opposite to each other and press on the two sides of the same part of the bag body to prevent the bag body from floating in the air and being difficult to be fixed and abutted. The two air inlets use the negative pressure adsorption force formed by sucking air to adsorb and connect the bag bodies on the opposite sides of the packaging bag 800, thereby connecting with the bag bodies on the opposite sides of the packaging bag 800. Subsequently, under the drive of the bag opening driving device 430, the air inlets of the first air suction member 410 and the second air suction member 420 move away from each other, and the bag bodies on the opposite sides of the packaging bag 800 adsorbed and connected thereto also separate and move away from each other and are no longer attached together. At this time, the bag bodies attached to the two sides of the opening end of the packaging bag 800 are also separated, the opening is opened, and the opening area is expanded. Subsequently, the gas source device 440 delivers gas toward the opened opening area, and uses the gas to propel the packaging bag 800 open until the packaging bag 800 is fully opened, the bag bodies on both sides are separated to the maximum extent, and the storage space in the bag is maximized. After the first and second air suction parts (410 and 420) stop sucking external air, their air chambers are no longer a negative pressure environment, and their air suction ports no longer have negative pressure adsorption force. At this time, the connection between the two air suction ports and the bag body is released, and the packaging bag 800 (in an open state) clamped by the connecting part and its clamping part 110 is continuously conveyed by the conveying mechanism to the filling part, which performs the filling work and fills the bag with materials. At this time, the material does not need to use the kinetic energy of gravity to slowly propel the storage space at the bottom of the bag body, but only needs to be naturally loaded to fill the space in the bag that has been fully opened in advance. Compared with the existing packaging device, the bag opening device is only provided with an air suction part to separate the bag bodies on both sides of the opening end of the packaging bag 800, and the separation degree of the bag body away from the opening end is insufficient, and the bag cannot be completely opened. The present application can ensure that the bag body has been fully opened in advance when packaging and filling, and there will be no phenomenon of underfilling and underutilization of the lower unopened space, which will cause blockage and overflow at the opening of the packaging bag 800. This can improve the space utilization rate of the packaging bag 800, thereby reducing the packaging cost of the material.

[0031] It should be noted that the opening end of the packaging bag 800 is located at one end in the length direction of the packaging bag 800, the clamping positions of the two clamping parts 110 of a connecting part are respectively close to the two ends in the width direction of the packaging bag 800, and the suction port of the first suction part 410 and the suction port of the second suction part 420 are adsorbed and connected to the two sides of the bag body of the packaging bag 800 in the thickness direction.

[0032] The two clamping members 110 are respectively used to clamp the opposite sides (along the body width direction of the packaging bag 800) of the opening end of the packaging bag 800, and the ends away from the opening naturally droop under the action of gravity. In order to ensure the clamping stability of the clamping member 110, under the air flow impact of the air source device 440, the impact force during the material filling process, and the gravity of the loaded material, the packaging bag 800 is still stably clamped. The clamping position of the clamping member 110 is close to the opening edge, but there is a certain distance from the opening edge, preferably 1 - 2 cm. Also, because the connection line of the suction ports of the first suction member 410 and the second suction member 420 intersects with the transmission trajectory of a point in the middle of the connection line of the two clamping members 110 of a connecting portion, this intersection point is the abutting and adsorbing point of the two suction ports. The present application does not specifically limit the position of the output end 441 of the air source device. No matter how the first suction member 410 and the second suction member 420 separate the two side bags of the packaging bag 800, the clamping member 110 remains stationary, and the connection line of the two clamping members 110 of a connecting portion is always within the opening range of the packaging bag 800. The so-called air source device 440 blows air into the packaging bag 800 through the opening of the packaging bag 800 "after" the opening area of the packaging bag 800 is enlarged. Here, "after" specifically refers to the sequence of the two actions of separating the two side bags and blowing air, and it cannot be understood as along the transmission direction of the clamping member 110. The output end of the air source device 440 is located behind the suction port of the first suction member 410 (the suction port of the second suction member 420 is arranged opposite to the suction port of the first suction member 410. Because along the transmission direction of the clamping member 110, the two suction ports are located at one point and coincide, that is, the aforementioned abutting and adsorbing point). In fact, in the present application, along the transmission direction of the clamping member 110, the output end 441 of the air source device can be located in front of, behind, or at one point and coincide with the suction port of the first suction member 410. If it is in front, as long as the transmission mechanism stops transmitting, during the process of adsorbing and connecting the bag body to enlarge the opening area of the packaging bag 800, along the transmission direction of the clamping member 110, the output end 441 of the air source device 440 is located between the two clamping members 110 of the connecting portion. If it is located behind, there is no limit to the distance, as long as along the transmission direction of the clamping member 110, the output end 441 of the air source device is located before the filling portion. Preferably, during the process of adsorbing and connecting the bag body to enlarge the opening area of the packaging bag 800 with the transmission mechanism stopped, along the transmission direction of the clamping member 110, the output end 441 of the air source device 440 is located between the two clamping members 110 of the connecting portion. More preferably: along the transmission direction of the clamping member 110, the output end 441 of the air source device 440 coincides with the adsorption connection point.

[0033] It should be noted that the connection line of the clamping positions of the two clamping members 110 on the same connecting portion is a line segment. A point in the middle can be taken on this line segment, which can be at 1 / 2, 1 / 3, 1 / 4, 2 / 3, 3 / 5, etc. along the transmission direction of the clamping member 110. Preferably, it is at 1 / 2, that is, the midpoint of this line segment.

[0034] In a possible implementation, the clamping member 110 is connected to the connecting portion through a telescopic assembly. The telescopic directions of the telescopic assemblies of the two clamping members 110 on one connecting portion are the same. By the telescoping of the telescopic assembly, the two clamping members 110 on the same connecting portion move away from or close to each other, so that the connecting portion can be adapted to clamp packaging bags 800 of different preset widths.

[0035] In a possible implementation, the conveying mechanism is a rotating shaft 100. The rotating shaft 100 is rotatably connected to the fixing portion 200. One axial end of the rotating shaft 100 is rotatably connected to the fixing portion 200. The rotating shaft 100 rotates around its axis. The other axial end of the rotating shaft 100 extends out of the fixing portion 200. A connecting portion is provided on the radial side wall of the extending end of the rotating shaft 100. A preset distance is provided between the connecting portion and the fixing portion 200.

[0036] The rotation trajectories of the two clamping members 110 on the same connecting portion coincide, that is, the distances from these two clamping members 110 to the axis of the rotating shaft 100 are the same. Preferably, the rotation trajectories of each clamping member 110 on the packaging device coincide. Along the rotation direction of the clamping member 110, the fixing portion 200 is sequentially provided with a bag-opening portion and a filling portion. The first suction member 410 and the second suction member 420 are respectively located inside and outside the circular rotation trajectory of the clamping member 110. The air outlet direction of the air source device 440, the material outlet direction of the filling device, and the axial direction of the rotating shaft 100 are the same.

[0037] The packaging device provided by the present application conveys the packaging bag 800 clamped by the connecting portion and its clamping member 110 to the printing station, the bag-opening station, the first filling station, the first vibration station, the second filling station... the encapsulation station, and the finished product output station in sequence through the rotation of the rotating shaft 100. After pausing at a station to perform corresponding operations, it continues to be conveyed to the next station.

[0038] Further, the rotating shaft 100 penetrates through the side wall of the fixing portion 200. The rotating shaft 100 and the inner wall of the through hole through which it penetrates the fixing portion 200 are rotatably connected through a bearing. In addition, the packaging device provided by the present application further includes a conveying driving device 120. The driving end of the conveying driving device 120 is connected to the rotating shaft 100 for driving the rotating shaft 100 to rotate.

[0039] In a possible implementation, the gas source device 440 and the filling part are both connected to the fixing part 200. Along the axial direction of the rotating shaft 100, the clamping member 110 is located between the output end 441 of the gas source device and the fixing part 200, and the clamping member 110 is located between the discharge port of the filling part and the fixing part 200. Along the rotation direction of the clamping member 110, the fixing part 200 is sequentially provided with a bag opening part, a filling part 510, and a finished product conveying track 700. The clamping member 110 and the packaging bag 800 clamped thereby are conveyed to the finished product output track, and the clamping of the packaging bag 800 is released, so that the packaging bag 800 enters the finished product conveying track 700, and the packaged finished product is conveyed by the finished product conveying track 700.

[0040] In a possible implementation, the filling part includes more than two filling parts 510. Along the conveying direction of the clamping member 110, a vibrating part 520 is provided between the more than two filling parts 510. The vibrating part 520 is connected to the fixing part 200. The filling part 510 is adapted to fill loose materials into the packaging bag 800, and the vibrating end of the vibrating part 520 is adapted to abut against the bag body of the packaging bag 800 to compact the loose materials in the packaging bag 800.

[0041] In a possible implementation, along the conveying direction of the clamping member 110, the fixing part 200 is sequentially provided with a printing part 300, a bag opening part, one filling part 510, one vibrating part 520, another filling part 510 (here, two filling parts 510 are taken as an example, and depending on the specific number of the filling parts 510, the alternating cycle of the vibrating part 520 and the filling part 510 can continue), a sealing part 540, and a finished product conveying track 700.

[0042] The printing part 300 is adapted to print characters on the bag body of the packaging bag 800, preferably a non-contact printing device. The sealing part 540 is adapted to seal the opening end of the packaging bag 800, and the sealing part 540 is preferably a heat sealing device. The heat sealing device is provided with two relatively arranged heating heads 541. The heating heads 541 are matched with the opening end of the packaging bag 800, and the heating heads 541 are oppositely arranged with respect to the opening end of the packaging bag 800. Specifically: along the axial direction of the rotating shaft 100, the clamping member 110 is located between the heating heads 541 and the fixing part 200, and the heating heads 541 and the clamping member 110 are adjacent to each other with a small distance. And along the radial direction of the rotating shaft 100, the two heating heads 541 are respectively located on the inner and outer sides of the clamping member 110. The heat sealing device is adapted to heat its heating heads 541 and drive the two heating heads 541 to approach or move away from each other. Approaching each other so that the two heating heads 541 respectively abut against the two side bag bodies of the opening end of the packaging bag 800, heating the bag body so that the two side bag bodies are heated and connected to realize the sealing of the packaging bag 800.

[0043] In a possible implementation, the vibrating end of the vibrating part 520 is a plate surface, which abuts against one side of the packaging bag 800 to vibrate the packaging bag 800 so as to compact the loose materials filled inside it. Further, the fixing part 200 is provided with a position adjustment driving device 530 for the vibrating part 520. The position adjustment driving device 530 is fixed on the fixing part 200, and its driving end 531 is connected to the vibrating part 520 to drive the vibrating part 520 to approach or move away from the conveying track of the packaging bag 800. Further still, the clamping member 110 clamps the opposite sides of the opening end of the packaging bag 800. The end of the packaging bag 800 away from the opening droops under the action of gravity and has a spacing from the fixing part 200. It can be arranged inside the circular rotation track of the clamping member 110 and the packaging bag 800 it clamps (the vibrating end drives outwards and vibrates), outside (the vibrating end drives inwards and vibrates), or below the direction of gravity (the vibrating end drives upwards and vibrates). Preferably, it is below.

[0044] In a possible implementation, a vibrating seat is provided at the vibrating end of the vibrating part 520, and the vibrating seat is matched with the packaging bag 800 filled with materials. The vibrating seat is generally in a U shape. The middle side abuts against the lower side of the packaging bag 800, and the opposite sides abut against the two sides of the packaging bag 800 in the body thickness direction. The preset side length of the opposite sides is 1 / 2 to 3 / 2 of the preset length of the packaging bag 800, and a rotation gap is left between the clamping member 110 and the vibrating seat. That is to say, the vibrating seat is provided with a vibrating groove. Except for the groove opening of the groove, conveying openings for the packaging bag 800 to enter and exit are also provided at the opposite ends. The vibrating seat is composed of a plate-shaped base and two oppositely arranged opposing plates, and the two opposing plates are connected to the opposite ends of the plate-shaped base.

[0045] In a possible implementation, in order to extend the storage time, the bag body of the packaging bag 800 is further provided with a vacuum port 810, and the vacuum port 810 is equipped with a one-way valve, which only allows the air in the bag to flow out of the packaging bag 800 through the vacuum port 810, and cuts off the passage of the air outside the bag to flow into the packaging bag 800 through the vacuum port 810 (that is, the air outside the bag is not allowed to enter the packaging bag 800 from the vacuum port 810). Along the conveying direction of the conveying mechanism, the fixing part 200 is sequentially provided with a bag opening part, a filling part, a packaging part 540 and a vacuum pumping device 600. The vacuum pumping device 600 is provided with an air suction pipe, and the end of the air suction pipe away from the vacuum pumping device 600 is arranged opposite to the vacuum port 810, and is suitable for being detachably connected to the vacuum port 810. After the packaging process, the packaging bag 800 is relatively sealed, and the vacuum pumping device 600 is used to suck the air in the bag to form a vacuum sealing environment in the packaging bag 800 as much as possible. The detachable connection between the suction pipe and the vacuum port 810 of the packaging bag 800 is an adsorption connection under the action of the negative pressure adsorption force formed at the end of the suction pipe away from the vacuum device when the vacuum device 600 sucks the external air. When the vacuum device 600 starts the suction work, the negative pressure adsorption connection is formed, and when it stops, there is no adsorption force and it falls off naturally. A certain distance is set between the adsorption connection of the first suction member 410 on the bag body of the packaging bag 800 and the adsorption connection of the second suction member 420 on the bag body of the packaging bag 800 and the vacuum port 810.

[0046] It should be noted that when the vacuum treatment is performed, the packaging bag 800 is filled with materials, and has a certain thickness, weight and hardness. It will not be easy to cause the bag body to float around and be difficult to adsorb and connect due to airflow disturbance, as when the first and second suction members (410 and 420) adsorb the empty packaging bag 800. Therefore, two vacuum ports 810 can be set on both sides of the bag body, and two opposite suction pipes of the vacuum device 600 located on the inner and outer sides of the circular rotation track of the clamping member 110 can be set. The two suction pipes can be driven to move closer or farther from each other by a vacuum installation drive device, or fixed according to the conventional bag thickness. It is also possible to set only one suction pipe, set a fixed top pressure member 610 on the opposite side, and the connection line of the suction pipe and the top pressure member 610 intersects with the transmission track at a point in the middle of the connection line of the two clamping members 110 of the same connection part. It is also possible to set only one suction pipe, and only use the suction pipe and the weight of the packaging bag 800 to prevent displacement and misalignment for connection and adsorption. An adjusting drive device 620 may also be provided, and the vacuum device 600 is connected to the driving end of the adjusting drive device 620, and is connected to the fixing portion 200 through the adjusting drive device 620, and is displaced relative to the fixing portion 200 under the drive of the adjusting drive device 620. The suction pipe is a hard pipe, which moves with the vacuum device 600, and the opening on one side of the tube deviates from and protrudes from the side wall of the vacuum device 600. Under the drive of the adjusting drive device 620, the suction pipe approaches or moves away from the vacuum port 810 of the packaging bag 800.

[0047] In a possible implementation, there are more than two connecting parts, and the two or more connecting parts are adjacently arranged along the conveying direction of the conveying mechanism, and the conveying tracks of the two or more connecting parts overlap. Furthermore, the two or more connecting parts are distributed circumferentially. Each connecting part is provided with two clamping members 110, and all the clamping members 110 of the packaging device are distributed circumferentially.

[0048] In a possible implementation, the filler portion 510 is in a truncated cone tube shape, and a feed port (circular hole) is provided at an axially thicker end of the truncated cone structure of the filler portion 510 , and a discharge port (circular hole) is provided at a thinner end.

[0049] Furthermore, the filling part 510 is also provided with a cylindrical tube, the diameter of the cylindrical tube matches the inner diameter of the feed port of the filling part 510, and connecting ports are provided at both axial ends of the cylindrical tube, one of which is arranged opposite to and connected to the feed port, and the axis of the cylindrical tube coincides with the axis of the truncated cone structure of the filling part 510.

[0050] In a possible implementation, the filling part 510 is detachably connected to the fixing part 200. Furthermore, the installation device is provided with a filling part 510 mounting frame, the filling part 510 mounting frame and the rotating shaft 100 protrude from the same side wall of the fixing part 200, the filling part 510 mounting frame is provided with a notch for making way for the connecting part, the clamping member 110, and the conveying track of the packaging bag 800, and the filling part 510 mounting frame is provided with a mounting ring matching the filling part 510, and the filling part 510 frame is clamped on the mounting ring and can be removed at will. Specifically: the annular inner diameter of the mounting ring matches the middle outer diameter of the filling part 510 along the axial direction of its truncated cone structure, and the thinner end is inserted into the mounting ring, and moves downward under the action of gravity until it is stuck. When it needs to be disassembled, just hold the upper side of the filling part 510 (the thicker end of the truncated cone structure) and move it upward to remove it.

[0051] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A packaging device, characterized in that: Suitable for filling materials into a packaging bag with an opening at one end, comprising: a conveying mechanism and a fixing part; The conveying mechanism is provided with a connecting part, and two clamping members are arranged opposite to each other at one end of the connecting part away from the conveying mechanism, respectively used to clamp the opposite sides of the opening end of the packaging bag, and along the conveying direction of the clamping members, the fixing part is provided with a bag opening part and a filling part in sequence; The bag opening part comprises a first suction piece, a second suction piece, a bag opening driving device and an air source device, the first suction piece and the second suction piece are both provided with a suction port, which is suitable for sucking external air through the suction port to generate a negative pressure adsorption force at the suction port, the bag opening driving device is suitable for driving the first suction piece and the second suction piece to approach or move away from each other, the suction port of the first suction piece and the suction port of the second suction piece are arranged relatively to each other along the driving direction of the bag opening driving device, and the connecting line of the two intersects with the transmission track at a point in the middle of the connecting line of the two clamping pieces, which are used for respectively adsorbing and connecting the bag bodies on the opposite sides of the packaging bag, and under the drive of the bag opening driving device, the suction ports of the first and second suction pieces approach each other and respectively abut the bag bodies on both sides of the packaging bag for adsorption connection, and move away from each other to separate the bag bodies adsorbed by the suction ports, thereby expanding the opening area of ​​the packaging bag; The air flow trajectory output by the air source device intersects with the transmission trajectory at a point on the connecting line of the two clamps. The air source device is suitable for blowing air into the packaging bag through the opening of the packaging bag to open the packaging bag after the opening area of ​​the packaging bag is expanded. The filling part is suitable for filling materials into the packaging bag.

2. The packaging device according to claim 1, characterized in that: The transmission mechanism is a rotating shaft, the rotating shaft is rotatably connected to the fixed part, one axial end of the rotating shaft is rotatably connected to the fixed part, the rotating shaft rotates around its axis, the other axial end of the rotating shaft protrudes from the fixed part, a radial side wall of the protruding end of the rotating shaft is provided with a connecting part, and a preset distance is provided between the connecting part and the fixed part; Along the rotation direction of the clamping member, the fixed part is provided with a bag opening part and a filling part in sequence, the first air suction member and the second air suction member are respectively located on the inner and outer sides of the circular rotation trajectory of the clamping member, and the air outlet direction of the air source device, the material discharge direction of the filling part and the axial direction of the rotating shaft are consistent.

3. The packaging device according to claim 2, characterized in that: It also includes a transmission drive device, a driving end of which is connected to the rotating shaft and is used to drive the rotating shaft to rotate.

4. The packaging device according to claim 2, characterized in that: The air source device and the filling part are both connected to the fixing part. Along the axial direction of the rotating shaft, the clamping member is located between the output end of the air source device and the fixing part, and the clamping member is located between the discharge port of the filling part and the fixing part.

5. The packaging device according to claim 1, characterized in that: Along the conveying direction of the clamping member, the fixing portion is sequentially provided with a bag opening portion, a filling portion and a sealing portion, and the sealing portion is suitable for sealing the opening end of the packaging bag.

6. The packaging device according to claim 5, characterized in that: The packaging part is a heat sealing device.

7. The packaging device according to claim 1, characterized in that: The filling part includes more than two filling parts. Along the conveying direction of the clamping member, a vibrating part is provided between the more than two filling parts. The vibrating part is connected to the fixing part. The filling part is suitable for filling loose materials into the packaging bag. One vibrating end of the vibrating part is suitable for abutting against the bag body of the packaging bag to vibrate the loose materials in the packaging bag.

8. The packaging device according to claim 7, characterized in that: The packing part is in the shape of a truncated cone tube, and a feed inlet is provided at a thicker end of the truncated cone structure of the packing part, and a discharge outlet is provided at a thinner end.

9. The packaging device according to claim 1, characterized in that: Along the conveying direction of the clamping member, the fixing portion is provided with a printing portion, a bag opening portion and a filling portion in sequence, and the printing portion is suitable for printing characters on the bag body of the packaging bag.

10. The packaging device according to claim 1, characterized in that: There are more than two connecting parts, and the more than two connecting parts are adjacently arranged along the conveying direction of the conveying mechanism, and the conveying tracks of the more than two connecting parts overlap.

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