A packaging machine conveying mechanism and a packaging machine

Abstract

The application relates to the technical field of packaging equipment, in particular to a packaging machine conveying mechanism and a packaging machine, which comprise a rotating base body, a work station assembly and an unfolding and folding driving mechanism; the work station assembly is connected to the rotating base body and rotates with the rotating base body; the work station assembly comprises a plurality of work station units used for placing packaging containers; the work station units are driven by the unfolding and folding driving mechanism to move and switch the work station assembly between an unfolded posture and a folded posture. The packaging machine conveying mechanism and the packaging machine can simultaneously carry out packaging production and processing of a plurality of packaging containers, effectively improve packaging processing efficiency, switch the posture of the work station assembly when the work station assembly is circulated and conveyed to reduce the rotating radius, improve structural compactness, reduce the occupied volume, improve the circulation speed, and further improve the operation speed of the packaging machine and the packaging production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging equipment, in particular to a packaging machine conveying mechanism and a packaging machine. BACKGROUND

[0002] The automatic bag feeding packaging machine is a commonly used packaging equipment, which usually stacks a plurality of packaging bag raw materials in the bag storage part of the equipment, then automatically takes out the packaging bags from the bag storage part one by one through the bag taking mechanism, and then sequentially performs the operations of opening the bag, filling, sealing, and discharging, to finally obtain the finished product bag filled with materials and sealed. The existing automatic bag feeding packaging machine includes various structural forms, but generally has a single-station circulating conveying structure, that is, only a single packaging bag can be sequentially subjected to the operations of opening the bag, filling, sealing, and discharging at one time, which is low in efficiency and cannot realize efficient and stable packaging production. SUMMARY

[0003] The technical problem to be solved by the present application and the technical task proposed are to improve the prior art, provide a packaging machine conveying mechanism and a packaging machine, and solve the problem of low efficiency of the packaging machine in the prior art, which makes it difficult to realize efficient and stable packaging production.

[0004] To solve the above technical problems, the technical solution of the present application is as follows:

[0005] A packaging machine conveying mechanism, comprising a rotating base, a station assembly, and an unfolding and folding driving mechanism, the rotating base is intermittently rotated by a rotating driving mechanism, the station assembly is connected to the rotating base, the station assembly comprises at least two station units for placing packaging containers, the station units are movable under the action of the unfolding and folding driving mechanism to switch the station assembly between an unfolded posture and a folded posture, and the rotating radius of the station assembly in the folded posture is smaller than the rotating radius of the station assembly in the unfolded posture. The packaging machine conveying mechanism can realize simultaneous packaging production and processing of a plurality of packaging containers, the station assembly is efficiently switched between different preset stations under the action of the rotating base, which can effectively improve the working efficiency and realize efficient and stable packaging production. The station assembly can switch postures, reduce the overall rotating radius when the station assembly rotates with the rotating base, improve the compactness of the structure, reduce the overall occupied volume of the equipment while increasing the packaging production capacity, and reduce the rotating radius when rotating, which can effectively reduce the moment of inertia, thereby facilitating acceleration and increasing the rotating speed, that is, the efficiency of switching the station assembly between different preset stations can be improved, the turnaround transport time of the station assembly between different packaging processing stations can be shortened, and the running rate of the packaging machine can be effectively improved, thereby improving the efficiency of packaging production.

[0006] Further, when the station assembly is in the unfolded posture, the station units in the station assembly are arranged linearly along the tangential direction of the rotation base, facilitating the structural design of the work mechanism and facilitating the parallel packaging operation of multiple stations; when the station assembly is in the folded posture, the station units in the station assembly are arranged along the circumferential direction of the rotation base, which can effectively reduce the rotation radius, thereby reducing the occupied space of the packaging machine conveying mechanism, further reducing the overall volume of the packaging machine, and when the station assembly is in the folded posture, the station units are more evenly distributed in the circumferential direction of the rotation base, which is conducive to more stable rotation and improves the smoothness of equipment operation.

[0007] Further, the station units in the station assembly are connected in sequence, adjacent station units are hingedly connected, and adjacent station units are relatively deflected under the driving of the unfolding and folding driving mechanism, so that the station assembly switches between the unfolded posture and the folded posture.

[0008] Alternatively, the station units in the station assembly are connected in sequence, adjacent station units are slidingly connected, the sliding direction is toward the radial direction of the rotation base, and adjacent station units are relatively slid under the driving of the unfolding and folding driving mechanism, so that the station assembly switches between the unfolded posture and the folded posture. The station units in the station assembly can be relatively movably connected as a whole, which can be switched between different preset stations under the driving of the rotation base, and can also switch the posture of the station assembly according to different needs, which not only facilitates multiple packaging operations at the same time when each packaging process is performed, but also ensures that the rotation base drives the station assembly to rotate with a smaller rotation radius and moment of inertia, thereby improving the compactness of the structure, reducing the occupied volume, improving the running speed, and better improving the packaging production capacity.

[0009] Further, when the number of station units in the station assembly is even, the two station units in the middle are movably connected to the rotation base; when the number of station units in the station assembly is odd, the station unit in the middle is fixedly connected to the rotation base. The middle part of the station assembly is connected to the rotation base, which makes the station units more evenly distributed on the rotation base, which is conducive to the stable operation of the entire packaging machine conveying mechanism and ensures the stability of the work.

[0010] Further, the unfolding and folding driving mechanism comprises a driving member, a connecting rod assembly and a sliding piece, the sliding piece is slidingly connected to the rotating base, the sliding direction of the sliding piece is along the radial direction of the rotating circumference of the rotating base, the sliding piece is connected to the work station unit of the work station assembly through the connecting rod assembly, and the driving member drives the sliding piece to move in the radial direction of the rotating circumference of the rotating base, so that the work station assembly is transformed between the unfolded posture and the folded posture. The structure is simple, easy to implement, the linkage effect is good, the work station unit is driven to link by sliding the sliding piece, the relative position relationship between adjacent work station units changes, the posture of the work station assembly changes, and finally the switching between the unfolded posture and the folded posture of the work station assembly is realized.

[0011] Further, the driving member comprises a cam guide member, and the sliding piece is slidingly connected to the cam guide member. The structure is simple, easy to implement, and no additional power components are needed. The rotating base is driven to rotate by the rotating driving mechanism, and the sliding piece is automatically driven to slide along the radial direction of the rotating circumference of the rotating base by the cam guide member, so that the work station assembly is switched between the unfolded posture and the folded posture during the rotation of the rotating base. That is, the posture is switched while rotating. The cam guide member is a linkage structure, which has high reliability during operation and can effectively avoid interference due to poor coordination.

[0012] Alternatively, the driving member comprises a driving piece and a pull rod, the driving piece is slidingly connected to the rotating base, the sliding direction of the driving piece is perpendicular to the rotating plane of the rotating base, one end of the pull rod is hingedly connected to the driving piece, and the other end of the pull rod is hingedly connected to the sliding piece. The structure is simple, easy to implement, and can be better applied to the case where the number of work station units is large. The work station units can be well linked to realize the switching between the unfolded posture and the folded posture of the work station assembly. The working mode can be flexibly selected according to needs. The posture can be switched while rotating, that is, the driving piece is driven to move to switch the posture of the work station assembly while the rotating base is rotating. The posture can also be switched first and then rotated, that is, the driving piece is driven to move to switch the posture of the work station assembly, and then the rotating base is rotated to switch the position of the work station assembly.

[0013] Further, the work station assembly is uniformly and evenly arranged along the rotating circumferential direction of the rotating base. The work station assemblies are uniformly distributed on the rotating base, which is conducive to the stable operation of the entire packaging machine conveying mechanism and improves the efficiency of packaging production.

[0014] Further, the work station unit is provided with a holding mechanism for fixing the packaging container. The holding mechanism controls the packaging container, which is convenient for packaging processing.

[0015] Further, the holding mechanism is an elastic bag supporting mechanism, which comprises a bag supporting member elastically held in an expanded state, and the bag supporting member is used to extend into the bag type packaging container to elastically hold the bag type packaging container in an expanded state. The elastic bag supporting mechanism effectively fixes the packaging container and makes the packaging container in a controlled expanded state, so that the material filling operation can be efficiently performed.

[0016] Further, a loosening and pushing mechanism for driving the bag supporting member to switch to a collapsed state is further included, and the loosening and pushing mechanism is arranged at a preset work station on the work station unit or on the rotation path of the work station assembly. The state of the elastic bag supporting mechanism is conveniently controlled to smoothly perform the bag loading operation of the bag type packaging container.

[0017] Further, the rotation plane of the rotary base body is along the transverse direction, the work station unit receives the packaging container in the vertical direction, and the packaging container on the work station unit receives the filled material in the vertical direction;

[0018] Alternatively, the rotation plane of the rotary base body is along the vertical direction, the work station unit receives the packaging container in the transverse direction, and the packaging container on the work station unit receives the filled material in the transverse direction;

[0019] Alternatively, the rotation plane of the rotary base body is at an angle of 45° with the horizontal plane, the work station unit receives the packaging container in the transverse direction, and the packaging container on the work station unit receives the filled material in the vertical direction, or the work station unit receives the packaging container in the vertical direction, and the packaging container on the work station unit receives the filled material in the transverse direction. The packaging machine conveying mechanism can have various forms and can be suitable for different scenes, and the appropriate structure can be selected according to the type of packaging container and the type of material.

[0020] A packaging machine comprising the above packaging machine conveying mechanism, and each preset work station on the conveying path of the packaging machine conveying mechanism is respectively provided with an operation mechanism for performing different packaging processing procedures.

[0021] Compared with the prior art, the packaging machine conveying mechanism has the following advantages:

[0022] The packaging machine conveying mechanism and the packaging machine can simultaneously perform packaging production and processing on several packaging containers, effectively improve the processing operation efficiency, realize efficient and stable packaging production, switch the attitude of the work station assembly when circulating and conveying the work station assembly to reduce the rotation radius, improve the compactness of the structure, reduce the occupied volume of the equipment, improve the circulation speed, improve the running rate of the packaging machine, and better improve the packaging production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic view of a packaging machine conveying mechanism according to the present application in an expanded attitude of the work station assembly;

[0024] Figure 2 for Figure 1 A schematic diagram of the dorsal side structure;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure concealing the rotating matrix;

[0026] Figure 4 for Figure 1 The diagram shows the structural schematic of the packaging machine's conveyor mechanism in the retracted position of the station components.

[0027] Figure 5 This is a schematic diagram of another type of packaging machine conveyor mechanism with the station components in an extended position.

[0028] Figure 6 for Figure 5 The diagram shows the structural schematic of the packaging machine's conveyor mechanism in the retracted position of the station components.

[0029] Figure 7 This is a schematic diagram of another type of packaging machine conveyor mechanism with the station components in an extended position.

[0030] Figure 8 This is a schematic diagram of the overall structure of one embodiment of the packaging machine of the present invention;

[0031] Figure 9 for Figure 8 A schematic diagram of the packaging container supply mechanism of the packaging machine shown.

[0032] Figure 10 for Figure 8 A schematic diagram of the material filling mechanism of the packaging machine shown.

[0033] Figure 11 This is a schematic diagram of the conveying mechanism of another packaging machine;

[0034] Figure 12 This is a schematic diagram of the conveying mechanism of another packaging machine;

[0035] Figure 13 This is a schematic diagram of the conveying mechanism of another packaging machine;

[0036] Figure 14 This is a schematic diagram of another type of packaging machine conveyor mechanism with the station components in an extended position.

[0037] Figure 15 for Figure 14 The diagram shows the structural schematic of the packaging machine's conveyor mechanism in the retracted position of the station components.

[0038] Figure 16 This is a schematic diagram of another implementation of the packaging machine;

[0039] Figure 17 Structure diagram of another embodiment of the packaging machine;

[0040] Figure 18 Structure diagram of another embodiment of the packaging machine;

[0041] Figure 19 Structure diagram of another packaging machine conveying mechanism when the station assembly is in an unfolded posture;

[0042] Figure 20 Structure diagram of Figure 21 Structure diagram of the packaging machine conveying mechanism shown in the figure when the station assembly is in a folded posture;

[0043] Figure 21 Structure diagram of another packaging machine conveying mechanism.

[0044] In the figure:

[0045] Packaging machine conveying mechanism 1, rotating base body 11, station assembly 12, station unit 121, bag supporting member 122, loosening and pushing mechanism 123, connecting rod assembly 131, sliding member 132, cam guide member 133, driving member 134, pull rod 135, linear telescopic driving mechanism 136, telescopic assembly 137, packaging container supply mechanism 2, bag taking suction cup 22, bag opening suction cup member 23, bag placing moving mechanism 24, material filling mechanism 3, material conveying belt 31, pushing assembly 32, discharge conveying belt 4, sealing mechanism 5, limiting baffle 51, stretching and pulling mechanism 52. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] The packaging machine conveying mechanism and the packaging machine disclosed in the embodiments of the present application can simultaneously perform packaging production of several packaging bags, greatly improve the work efficiency, realize efficient and stable packaging production, have compact structure, reduce the occupied volume, have small rotational inertia, stable operation, low power consumption, and reduce the complexity and cost of the equipment.

[0048] As Figures 1 to 4As shown, a packaging machine conveying mechanism 1 mainly comprises a rotating base 11, a station assembly 12 and an unfolding and folding driving mechanism. The rotating base 11 is intermittently rotated by a rotating driving mechanism, which can be composed of a servo motor, a speed reducer and a cam divider, to realize high-precision rotation of the rotating base 11. The station assembly 12 is connected to the rotating base 11 and comprises at least two station units 121 for placing packaging containers. The station units 121 in the station assembly 12 are relatively movable. When the relative positions of the station units 121 change, the overall posture of the station assembly 12 changes. Specifically, the station units 121 are moved by the unfolding and folding driving mechanism to switch the station assembly 12 between an unfolded posture and a folded posture. The rotating radius of the station assembly 12 in the folded posture is smaller than that in the unfolded posture.

[0049] The packaging machine conveying mechanism described above is applied to a packaging machine, which further comprises a working mechanism. The working mechanism comprises several kinds of working mechanisms for different packaging processing procedures. Different working mechanisms are arranged at each preset work station on the conveying path of the packaging machine conveying mechanism. Each working mechanism comprises a mechanism unit corresponding to the number of station units 121 in the station assembly 12. When the station assembly 12 rotates to a preset work station and is in an unfolded posture, each mechanism unit performs a packaging processing procedure on each station unit 121.

[0050] Specifically, the work station assembly 12 is connected to the rotating base 11 to rotate with the rotating base 11, and the work station assembly 12 and the rotating base 11 combine to form a whole rotating body. When the work station assembly 12 is in the unfolded posture, the work station units 121 in the work station assembly 12 are in an expanded state to facilitate the work mechanism to perform various packaging processing procedures (such as packaging container feeding and material filling, etc.), and at this time, the rotating body has a larger rotating radius, and a larger space is required when rotating, which leads to the need for a larger moving space of the packaging machine conveying mechanism, thereby leading to a larger overall volume of the packaging machine. In addition, the large rotating radius also leads to a large moment of inertia. The packaging machine conveying mechanism is an intermittent motion mechanism, and the rotating base 11 needs to stop at the preset work station to perform various packaging processing procedures when transporting the work station assembly 12 to the preset work station. In other words, the rotating body is in a state of frequent switching between motion and stillness, and the large moment of inertia makes the acceleration from stillness to motion and the deceleration from motion to stillness slower, thereby affecting the overall rotation rate of the rotating body, that is, affecting the efficiency of the circulation of the work station assembly 12 between the preset work stations, and further affecting the processing efficiency of the packaging production. After completing various packaging operations, the work station assembly 12 is switched to the folded posture by the unfolding and folding driving mechanism, and the work station units 121 in the work station assembly 12 are moved to the radial inner side of the rotating base 11 under the driving of the unfolding and folding driving mechanism to achieve a relatively tight state, thereby effectively reducing the rotating radius of the rotating body and the space required when rotating, thereby reducing the moving space required by the packaging machine conveying mechanism, and further reducing the overall volume of the packaging machine. In addition, the reduction of the rotating radius also reduces the moment of inertia, so that the acceleration and deceleration of the rotating body can be faster, that is, the overall rotation rate of the rotating body can be improved, the circulation efficiency of the work station assembly 12 between the preset work stations can be improved, and the processing efficiency of the packaging production can be better improved.

[0051] In one embodiment, as Figures 1 to 4As shown, the work station units 121 in the work station assembly 12 are connected in sequence, adjacent work station units 121 are hinged, and adjacent work station units 121 are relatively deflected under the drive of the unfolding and folding drive mechanism to switch the work station assembly 12 between the unfolded posture and the folded posture. The work station units 121 in the work station assembly 12 are connected to form a long string structure. Since adjacent work station units 121 are hinged, the overall posture of the work station assembly 12 can be changed when adjacent work station units 121 are relatively deflected. Specifically, the hinge shafts between adjacent work station units 121 are perpendicular to the rotation plane of the rotating base 11, so that the plane in which the work station units 121 are deflected is parallel to the rotation plane of the rotating base 11. That is, the work station assembly 12 moves in a plane parallel to the rotation plane of the rotating base 11 to switch the posture. The work station units 121 in the work station assembly 12 can be arranged in a straight line, or can be arranged in a curve. To facilitate the structural design of the work mechanism and the parallel packaging processing of multiple work stations, preferably, the work station units 121 in the work station assembly 12 are arranged in a straight line in the unfolded posture, which facilitates the arrangement of the mechanism units of the work mechanism in parallel to package and process the work station units 121. Further, the work station units 121 in the work station assembly 12 are arranged in a straight line along the tangential direction of the rotation circumferential direction of the rotating base 11. This state facilitates the structural design of the work mechanism, the mechanism units in the work mechanism are arranged in parallel along a straight line, which is easy to design and implement, compact in structure, and can better avoid interference. When the work station assembly 12 is rotated to a preset work station and is in the unfolded posture in which the work station units 121 are arranged in a straight line, each work station unit 121 corresponds to each mechanism unit in the work mechanism one by one, so that each mechanism unit packages and processes each work station unit 121. When it is necessary to rotate the work station assembly 12 from a preset work station to the next preset work station, the work station assembly 12 is switched to the folded posture to reduce the radius of rotation. Specifically, the work station units 121 in the work station assembly 12 are arranged along the tangential direction of the rotation circumferential direction of the rotating base 11 in the folded posture, that is, the work station units 121 originally arranged in a straight line along the tangential direction of the rotation circumferential direction of the rotating base 11 are deflected towards the radial direction of the rotating base 11, and finally reach the posture in which the work station units 121 are arranged along the rotation circumferential direction of the rotating base 11. This effectively reduces the radius of rotation of the rotating body, reduces the space required for rotation, reduces the volume of the conveying mechanism of the packaging machine, and reduces the moment of inertia to enable faster rotation switching, thereby improving the efficiency of packaging and processing.

[0052] More specifically, as Figure 5As shown, when the number of the work station units 121 in the work station assembly 12 is even, the two work station units 121 in the middle are hingedly connected to the rotating base 11. In the embodiment, the work station units 121 in the work station assembly 12 are connected in series and the adjacent work station units 121 are hingedly connected. When the two work station units 121 in the middle are hingedly connected to the rotating base 11, the two work station units 121 in the middle can still be hingedly connected to each other. When the two work station units 121 in the middle are hingedly connected to the rotating base 11, the middle part of the work station assembly 12 is connected to the rotating base 11. Thus, the work station units 121 in the work station assembly 12 are symmetrically distributed on both sides of the connection between the work station assembly 12 and the rotating base 11, so that the work station units 121 are more evenly distributed on the rotating base 11, and the conveying mechanism of the packaging machine runs more smoothly. Figure 1 As shown, when the number of the work station units 121 in the work station assembly 12 is odd, the work station unit 121 in the middle is fixedly connected to the rotating base 11. The work station units 121 adjacent to the work station unit 121 in the middle are hingedly connected to the work station unit 121 in the middle or to the rotating base 11. Similarly, the middle part of the work station assembly 12 is connected to the rotating base 11. The work station units 121 in the work station assembly 12 are symmetrically distributed at the connection between the work station assembly 12 and the rotating base 11, so that the work station units 121 are more evenly distributed on the rotating base 11, and the conveying mechanism of the packaging machine runs more smoothly. Regardless of the number of the work station units 121 in the work station assembly 12, when the work station assembly is in the unfolded state, the work station units 121 in the work station assembly 12 are arranged in a straight line along the tangential direction of the connection between the work station assembly 12 and the rotating base 11. When the work station assembly is switched to the folded state, the work station units 121 on both sides of the connection between the work station assembly 12 and the rotating base 11 are deflected to the radial inner side to achieve an arrangement along the circumferential direction of the rotating base 11. Of course, in an embodiment, as shown, Figure 7 Similarly, when the work station units 121 in the work station assembly 12 are arranged in a straight line along the tangential direction of the circumferential direction of the rotating base 11, the work station assembly 12 is in the unfolded state. When the work station units 121 in the work station assembly 12 are arranged along the circumferential direction of the rotating base 11, the work station assembly 12 is in the folded state. This can facilitate multi-station packaging processing and reduce the rotating radius to reduce the occupied volume and increase the rotating speed. However, compared with Figure 1 and Figure 5 the above-mentioned solutions, the work station units 121 are not evenly distributed on the rotating base 11, and the stability during operation is slightly weaker.

[0053] In one embodiment, as shown in Figure 8 The working mechanism of the packaging machine comprises a packaging container supply mechanism 2 and a material filling mechanism 3. The packaging container supply mechanism 2 comprises a number of supply units corresponding to the number of work units 121 in the work assembly 12, for respectively placing the packaging containers on each work unit 121 of the work assembly 12. The material filling mechanism 3 comprises a number of filling units corresponding to the number of work units 121 in the work assembly 12, for respectively filling the packaging containers on each work unit 121 of the work assembly 12 with materials. The packaging container supply mechanism 2, the material filling mechanism 3 and other mechanisms for packaging work are relatively complex in structure and relatively large in size. If the packaging work is directly performed on each work unit 121 in the work assembly 12 in the folded state, the supply units of the packaging container supply mechanism 2 and the filling units of the material filling mechanism 3 will be distributed in a scattered and non-compact manner, resulting in a loose overall structure of the packaging machine, an unreasonable layout, a large occupied space, and the need for synchronous action of each supply unit of the packaging container supply mechanism 2 and each filling unit of the material filling mechanism 3. When the supply units of the packaging container supply mechanism 2 and the filling units of the material filling mechanism 3 are distributed in a scattered manner, a linkage mechanism needs to be added, making the structure of the packaging machine more complex and the equipment occupy a larger volume. Therefore, in order to better improve the compactness of the overall structure of the packaging machine, it is preferred that the supply units of the packaging container supply mechanism 2 are arranged in a straight line in parallel, and the filling units of the material filling mechanism 3 are arranged in a straight line in parallel, so that the packaging container supply mechanism 2, the material filling mechanism 3 and other mechanisms are more compact in structure and easier to design and arrange. Correspondingly, the work assembly 12 needs to be in an unfolded state so that each work unit 121 in the work assembly 12 corresponds to each supply unit of the packaging container supply mechanism 2 one by one, and the work assembly 12 needs to be in an unfolded state so that each work unit 121 in the work assembly 12 corresponds to each filling unit of the material filling mechanism 3 one by one, thereby efficiently performing various packaging processing procedures, and then switching to the folded state when the work assembly 12 circulates between each preset work station, improving the efficiency of circulation and better improving the processing efficiency of packaging production.

[0054] Further, as shown in Figure 1 and Figure 8As shown, two work station assemblies 12 are evenly spaced along the rotation circumference of the rotation base 11, and two preset work stations are provided on the conveying path of the packaging machine conveying mechanism 1, so that the rotation base 11 drives the work station assemblies 12 to rotate 180° to realize the rotation switching of the work station assemblies 12 between the preset work stations. The packaging container supply mechanism 2 is arranged at one of the preset work stations, and the material filling mechanism 3 is arranged at the other preset work station. When one of the work station assemblies 12 rotates to the preset work station where the packaging container supply mechanism 2 is arranged, the other work station assembly 12 rotates to the preset work station where the material filling mechanism 3 is arranged, so that different packaging processing procedures can be carried out in parallel, avoiding the situation that the working mechanism is waiting, and improving the efficiency of packaging processing production. When the number of work station assemblies 12 and the number of preset work stations are more, when one of the work station assemblies 12 rotates to one of the preset work stations, the remaining preset work stations are correspondingly rotated to the work station assemblies 12, so that different packaging processing procedures can be carried out in parallel, improving the efficiency of packaging processing production. Further, the number of work station assemblies 12 can be the same as the number of preset work stations, or the number of work station assemblies 12 can be more than the number of preset work stations, to ensure that all preset work stations have work station assemblies 12 rotating to the position at the same time, so that the working mechanisms at each preset work station can simultaneously carry out packaging processing procedures. In one embodiment, as shown in the figure, the work station assemblies 12 are evenly spaced on the rotation base 11, and there are four work station assemblies 12, and there are only two preset work stations, and the two preset work stations are arranged at the two ends of the rotation base 11 in the diameter direction. The work station assemblies 12 rotate to the preset work stations and are completely switched to the unfolded state, and in the direction perpendicular to the line connecting the two preset work stations, the work station assemblies 12 are completely switched to the folded state. In this way, the rotation base 11 needs to drive the work station assemblies 12 to rotate 180° to realize the rotation switching of the work station assemblies 12 between the preset work stations, but since the number of work station assemblies 12 is more than the number of preset work stations, the single step action of the rotation base 11 only needs to rotate 90° to make each work station assembly 12 rotate through each preset work station to carry out packaging processing procedures. Figure 11

[0055] The work station units 121 in the work station assembly 12 are relatively movable, so that the relative positional relationship between the work station units 121 changes to realize the change of the posture of the work station assembly 12. In order to realize automation, the work station assembly 12 is driven by the unfolding and folding driving mechanism to change the posture. As shown in the figure, Figures 1 to 4 ​As shown, the deployment and collection driving mechanism comprises a driving member, a connecting rod assembly 131 and a sliding member 132, the sliding member 132 is slidingly connected on the rotary base body 11, the sliding direction of the sliding member 132 is along the radial direction of the rotating circumference of the rotary base body 11, the sliding member 132 is connected with the station units 121 in the station assembly 12 through the connecting rod assembly 131, the driving member drives the sliding member 132 to move along the radial direction of the rotating circumference of the rotary base body 11 to change the station assembly 12 between the unfolded posture and the folded posture. The driving member can be of various types, such as Figure 3 As shown, the driving member is a stationary cam guide member 133, which can be a guide groove or a guide rail, the sliding member 132 is slidingly connected on the cam guide member 133, the sliding member 132 is driven by the cam guide member 133 to move as the rotary base body 11 rotates, which is simple in structure and easy to implement without additional power components. The cam guide member 133 can be arranged on a stationary support plate, the path of the cam guide member 133 is annular around the rotating circumference of the rotary base body 11, the distance from each point on the path of the cam guide member 133 to the center of the rotary base body 11 changes along the path of the cam guide member 133, the rotary base body 11 rotates under the driving of the rotary driving mechanism, the sliding member 132 slides along the cam guide member 133, the cam guide member 133 drives the sliding member 132 to slide along the radial direction of the rotating circumference of the rotary base body 11 relative to the rotary base body 11, so that the sliding member 132 drives the station units 121 to move through the connecting rod assembly 131, and further changes the station assembly 12 between the unfolded posture and the folded posture during the rotation of the rotary base body 11, that is, it changes the posture while rotating. The cam guide member 133 is a linkage structure, which is highly reliable during operation and can effectively avoid interference due to mismatch. In this embodiment, the cam guide member 133 is approximately elliptical, when the rotary base body 11 drives the station assembly 12 to rotate to the long diameter position of the ellipse, the station assembly 12 reaches the fully unfolded unfolded posture, and when the rotary base body 11 drives the station assembly 12 to rotate to the short diameter position of the ellipse, the station assembly 12 reaches the fully folded folded posture, and during the rotation between the short diameter position of the ellipse and the long diameter position of the ellipse, the station assembly 12 is in the process of posture transition, that is, the station assembly 12 gradually changes the posture during the rotation of the rotary base body 11. More specifically, the station assembly 12 is in the unfolded posture when the rotary base body 11 rotates to the long diameter position of the ellipse, and is in the folded posture when the rotary base body 11 rotates to the short diameter position of the ellipse, and is in the posture transition process when the rotary base body 11 rotates between the long diameter position of the ellipse and the short diameter position of the ellipse. Figure 1 As shown, the station assembly 12 comprises three station units 121, the middle station unit 121 is fixedly arranged on the rotary base body 11, and one station unit 121 is hingedly arranged on each side of the middle station unit 121, the sliding member 132 is slidingly connected on the guide rail arranged on the rotary base body 11, and the connecting rod assembly 131 is composed of a plurality of connecting rods.Figure 1 and Figure 3 As shown in the figure, one specific embodiment of the link assembly 131 includes a first link, a second link and a third link, one end of the first link is hinged to the slider 132, the other end of the first link is hinged to the middle of the second link, one end of the second link is hinged to the swivel base 11, the other end of the second link is hinged to one end of the third link, the other end of the third link is hinged to the left end station unit 121, similarly, the right end station unit 121 is connected to the slider 132 through another set of first link to third link, when the slider 132 slides relative to the swivel base 11, the slider 132 drives the second link to deflect relative to the swivel base 11 through the first link, then the second link pulls the left end station unit 121 to deflect relative to the central station unit 121 through the third link, that is, the station unit 121 is driven by the unfolding and folding drive mechanism to move to switch the station assembly 12 between the unfolded attitude and the folded attitude. The link assembly 131 can also have other embodiments, the link assembly 131 and the slider 132 combine to form a crank and connecting rod mechanism to realize the mutual conversion function of rotation and linear movement, taking the station assembly 12 including three station units 121 as an example, the central station unit 121 is fixedly arranged on the swivel base 11, and one station unit 121 is hinged to the left and right sides of the central station unit 121, the link assembly 131 can only include a single link, one end of the link is hinged to the slider 132, the other end of the link is hinged to the station unit 121 on the end side of the station assembly 12, the slider 132 can also drive the station unit 121 to deflect to realize the switching of the station assembly 12 between the unfolded attitude and the folded attitude when the slider 132 slides relative to the swivel base 11. In addition, the cam guide member 133 can also be driven to rotate by the additional power mechanism, so that the working mode of the station assembly 12 first switching from the unfolded attitude to the folded attitude and then the swivel base 11 rotating can be realized, specifically, before the swivel base 11 rotates, the cam guide member 133 is driven by the power mechanism to rotate relative to the swivel base 11, so that the cam guide member 133 drives the slider 132 to slide relative to the swivel base 11 to switch the attitude of the station assembly 12, when the station assembly 12 is switched to the folded attitude, the swivel base 11 starts to rotate again, and at this time the cam guide member 133 rotates synchronously with the swivel base 11 to keep the station assembly 12 in the folded attitude, when the station assembly 12 rotates to the position, the cam guide member 133 rotates relative to the swivel base 11 again to switch the station assembly 12 to the unfolded attitude to perform the packaging processing procedure.

[0056] Or, as Figure 5 and Figure 6As shown, the driving member comprises a driving piece 134 and a pull rod 135, the driving piece 134 is slidingly connected to the rotating base 11, the sliding direction of the driving piece 134 is perpendicular to the rotating plane of the rotating base 11, one end of the pull rod 135 is hingedly connected to the driving piece 134, and the other end of the pull rod 135 is hingedly connected to the sliding piece 132. Specifically, in Figure 5In the embodiment, the work station assembly 12 comprises six work station units 121 connected in sequence by hinges, and the work station units 121 in the upper region of the drawing are sequentially numbered as the first to sixth work station units from left to right. The third and fourth work station units 121 in the middle are hingedly connected to the rotating base 11. The rotating base 11 is provided with a guide rod perpendicular to the rotating plane of the rotating base 11. The driving member 134 is a sleeve member slidingly sleeved on the guide rod. The sliding members 132 are provided in a number and are spaced apart along the circumferential direction of the rotating base 11. Specifically, five sliding members 132 are provided, and each sliding member 132 is slidingly connected to the rotating base 11 along the radial direction of the rotating circumferential direction of the rotating base 11. The sliding members 132 in the upper region of the drawing are sequentially numbered as the first to fifth sliding members from left to right. The connecting rod assembly 131 comprises the first to tenth connecting rods from left to right. Specifically, one end of the first connecting rod is hingedly connected to the first work station unit, and the other end of the first connecting rod is hingedly connected to the first sliding member. One end of the second connecting rod is hingedly connected to the second work station unit, and the other end of the second connecting rod is hingedly connected to the first sliding member. One end of the third connecting rod is hingedly connected to the second work station unit, and the other end of the third connecting rod is hingedly connected to the second sliding member. One end of the fourth connecting rod is hingedly connected to the third work station unit, and the other end of the fourth connecting rod is hingedly connected to the second sliding member. One end of the fifth connecting rod is hingedly connected to the third work station unit, and the other end of the fifth connecting rod is hingedly connected to the third sliding member. One end of the sixth connecting rod is hingedly connected to the fourth work station unit, and the other end of the sixth connecting rod is hingedly connected to the third sliding member. One end of the seventh connecting rod is hingedly connected to the fourth work station unit, and the other end of the seventh connecting rod is hingedly connected to the fourth sliding member. One end of the eighth connecting rod is hingedly connected to the fifth work station unit, and the other end of the eighth connecting rod is hingedly connected to the fourth sliding member. One end of the ninth connecting rod is hingedly connected to the fifth work station unit, and the other end of the ninth connecting rod is hingedly connected to the fifth sliding member. One end of the tenth connecting rod is hingedly connected to the sixth work station unit, and the other end of the tenth connecting rod is hingedly connected to the fifth sliding member. The first to fifth sliding members are connected to the driving member 134 by different pull rods. The pull rods connected to the first and fifth sliding members are connected to the distal end of the driving member 134 away from the rotating base 11. The pull rod connected to the third sliding member is connected to the proximal end of the driving member 134 close to the rotating base 11. The pull rods connected to the second and fourth sliding members are connected between the distal end and the proximal end of the driving member 134. When the driving member 134 slides along the guide rod, the sliding members 132 are driven to move, and then the sliding members 132 drive the work station units 121 to deflect, so as to switch the work station assembly 12 between the unfolded and folded states. When the above-mentioned unfolding and folding driving mechanism is adopted, the work mode can be flexibly selected according to the needs. The rotating base 11 can be rotated while the driving member 134 is driven to switch the state of the work station assembly 12. Alternatively, the driving member 134 can be driven to switch the state of the work station assembly 12, and then the rotating base 11 is rotated to switch the position of the work station assembly 12. Different needs can be flexibly met.The driving member 134 is movable perpendicularly to the rotation plane of the rotating base 11 by a linear telescopic mechanism, the telescopic direction of which is along the axial direction of the guide rod. The linear telescopic mechanism can be a pneumatic cylinder, an electric push rod, or a cam groove mechanism arranged stationary relative to the rotating base 11. When the driving member 134 rotates with the rotating base 11, the cam groove mechanism automatically drives the driving member 134 to move along the guide rod.

[0057] As shown in Figure 12 , the driving member can be directly driven by a linear telescopic driving mechanism 136, which can be a pneumatic cylinder, an electric push rod, or the like. The linear telescopic driving mechanism 136 is arranged on the rotating base 11 and drives the sliding member 132 to move along the sliding direction of the sliding member 132. This structure is simple and easy to implement. However, the linear telescopic driving mechanism 136 is an additional power mechanism, which needs to be powered, i.e., needs to be connected to a gas pipe or an electric wire. Since the linear telescopic driving mechanism 136 rotates with the rotating base 11, the wiring design is relatively difficult. The linear telescopic driving mechanism 136 can be used in a flexible working mode according to the needs, i.e., the rotating base 11 rotates while the linear telescopic driving mechanism 136 drives the station assembly 12 to switch the posture, or the linear telescopic driving mechanism 136 drives the station assembly 12 to switch the posture first, and then the rotating base 11 rotates to switch the position of the station assembly 12.

[0058] As shown in Figure 13 , the deployment and retraction driving mechanism can also be a telescopic assembly 137 arranged directly between adjacent station units 121. The telescopic assembly 137 can be a pneumatic cylinder, an electric push rod, or the like. One end of the telescopic assembly 137 is connected to one station unit 121, and the other end of the telescopic assembly 137 is connected to an adjacent station unit 121. The telescopic assembly 137 drives the adjacent station units 121 to relatively deflect, thereby driving the station assembly 12 to switch between the deployed posture and the retracted posture.

[0059] In an embodiment, as shown in Figure 1 and Figure 8As shown, the rotation plane of the rotary base 11 is along the vertical direction, and the work station units 121 receive the packaging containers along the horizontal direction, and the packaging containers on the work station units 121 receive the filled materials along the horizontal direction, and specifically, preset work stations are arranged at the highest point and the lowest point of the conveying path of the packaging machine conveying mechanism 1 respectively, the preset work station at the highest point is provided with the packaging container supply mechanism 2, and the preset work station at the lowest point is provided with the material filling mechanism 3, and then the packaging container supply mechanism 2 feeds the packaging containers to the work station units 121 along the horizontal direction, and the material filling mechanism 3 fills the materials to the packaging containers on the work station units 121 along the horizontal direction, and such a structure is suitable for the filling of block materials. According to the execution flow of the packaging processing procedure, the work station assembly 12 rotating to the preset work station where the packaging container supply mechanism 2 is located is switched to the unfolded posture, then the packaging container supply mechanism 2 conveys and places the packaging containers to each work station unit 121, then the rotary base 11 drives the work station assembly 12 to rotate to switch the position, in the rotating process of switching the position, the work station assembly 12 is switched to the folded posture to reduce the rotation radius and the moment of inertia, and when the work station assembly 12 with the packaging containers placed thereon rotates to the preset work station where the material filling mechanism 3 is located, the work station assembly 12 is switched to the unfolded posture again, and then the material filling mechanism 3 fills the materials into the packaging containers of the work station units 121.

[0060] The work station units 121 are provided with holding mechanisms for fixing the packaging containers, and the holding mechanisms are used to make the packaging containers in a controlled state, so as to facilitate the packaging production and processing procedures. The packaging containers can be box-type packaging containers with fixed volume, or bag-type packaging containers (i.e. packaging bags), for the box-type packaging containers, the work station units 121 can only be cavities accommodating the box-type packaging containers, and additional clamping and fixing of the box-type packaging containers is not required, and for the packaging bags, the holding mechanisms can be clamps clamping the two side edges of the packaging bags respectively. In addition, the holding mechanisms can also be Figure 1The elastic bag supporting mechanism shown includes an elastic bag supporting member 122 elastically held in an expanded state, which is used to extend into the packaging bag to elastically hold the packaging bag in an expanded state, and is used to fix the packaging bag and stabilize the packaging bag in a controlled expanded state, facilitating efficient material filling operation, and is suitable for block material filling, especially for application scenarios of filling materials in the transverse direction, and the packaging bag is held in an open mouth state by the elastic bag supporting mechanism. The bag supporting member 122 is detachably connected to the station unit 121, and the size of the bag supporting member 122 can be easily replaced according to needs, and different specifications of packaging materials can be flexibly adapted. The elastic bag supporting mechanism is perpendicular to the rotation plane of the rotating base body 11, that is, the mouth of the packaging bag sleeved on the elastic bag supporting mechanism is oriented at 90° to the rotation plane of the rotating base body 11, and since the rotation plane of the rotating base body 11 is vertical, the mouth of the packaging bag sleeved on the elastic bag supporting mechanism is oriented in the transverse direction, and the block material can be pushed into the packaging bag in the transverse direction to realize material filling. A loosening and pushing mechanism 123 cooperating with the elastic bag supporting mechanism is also provided, which is used to push the bag supporting member 122 to switch to a collapsed state, as shown in Figure 14 The loosening and pushing mechanism 123 is provided on the station unit 121, or, as shown in Figure 1 The loosening and pushing mechanism 123 is provided at the required preset station, and in the latter mode, the number of loosening and pushing mechanisms 123 required is less, and the load weight of the rotating base body 11 is reduced, which is beneficial to reduce the power consumption of driving the rotation of the rotating base body 11. The loosening and pushing mechanism 123 can be a cylinder driven pushing mechanism, which drives the bag supporting member 122 to move by overcoming the force of the elastic member, so as to switch the elastic bag supporting mechanism to a collapsed state. When the packaging bag is placed on the elastic bag supporting mechanism on the station unit 121, the loosening and pushing mechanism 123 first acts to switch the bag supporting member 122 to a collapsed state, so as to ensure that the packaging bag can be easily and smoothly sleeved on the elastic bag supporting mechanism, and then the loosening and pushing mechanism 123 is reset to cancel the pushing of the bag supporting member 122, and the bag supporting member 122 elastically recovers to an expanded state to fix and hold the packaging bag in an expanded state.

[0061] More specifically, as shown in Figure 9As shown, the feeding unit in the packaging container feeding mechanism 2 comprises a bag storage bin 21 for stacking packaging bags, a bag taking assembly and a bag placing assembly. The bag storage bin 21 is provided with an outlet at the lower part for taking out the packaging bags. The bag taking assembly comprises a bag taking suction cup 22 reciprocating at the outlet of the bag storage bin 21 to take out the packaging bags one by one. Specifically, the bag taking suction cup 22 is connected to a rotating shaft, and the rotating shaft is driven by a pneumatic cylinder to make the bag taking suction cup 22 reciprocate in a deflected manner. The bag taking suction cup 22 advances to the outlet of the bag storage bin 21 to adsorb the packaging bag, and then the bag taking suction cup 22 retreats away from the outlet of the bag storage bin 21 to take out the packaging bag from the outlet of the bag storage bin 21. The bag placing assembly comprises an open bag suction cup piece 23 capable of opening and closing and a bag placing moving mechanism 24 for moving the open bag suction cup piece 23. The open bag suction cup piece 23 reciprocates between the position of the bag taking suction cup 22 and the position of the work station assembly 12 at the preset work station under the driving of the bag placing moving mechanism 24. The open bag suction cup piece 23 receives the bag type packaging container taken out by the bag taking suction cup 22. The open bag suction cup piece 23 moves to the position of the bag taking suction cup 22, and two groups of suction cups of the open bag suction cup piece 23 adsorb the two side surfaces of the packaging bag taken out respectively. Then the bag taking suction cup 22 releases the packaging bag, and the two groups of suction cups of the open bag suction cup piece 23 perform opening action to open the mouth of the packaging bag. Then the open bag suction cup piece 23 moves to the work station assembly 12 at the preset work station under the driving of the bag placing moving mechanism 24. The elastic bag supporting mechanism on the work station unit 121 switches to the collapsed state under the action of the loosening pushing mechanism 123, and then the packaging bag is sleeved on the elastic bag supporting mechanism. The loosening pushing mechanism 123 resets to release the pushing of the bag supporting piece 122, and the bag supporting piece 122 elastically recovers to the supporting open state to fix the packaging bag on the work station unit 121. The open bag suction cup piece 23 releases the packaging bag and moves away from the work station assembly 12 at the preset work station under the driving of the bag placing moving mechanism 24. Through the above steps, the bag placing packaging processing procedure is completed. The packaging bag is placed on the work station unit 121 and stably in the controlled open state, which is convenient for subsequent packaging processing procedures.

[0062] As Figure 10As shown, the material filling mechanism 3 comprises a material conveying belt 31 and push assemblies 32 corresponding to the number of the station units 121 in the station assembly 12, i.e. the filling units, the conveying direction of the material conveying belt 31 is along the horizontal direction, the materials are placed on the material conveying belt 31 at intervals for intermittent conveying, the station units 121 in the station assembly 12 at the preset working station where the material filling mechanism 3 is located are arranged in a straight line, the straight line arrangement direction of the station units 121 is parallel to the conveying direction of the material conveying belt 31, the pushing direction of the push assembly 32 is perpendicular to the conveying direction of the material conveying belt 31, when the station assembly 12 at the preset working station where the material filling mechanism 3 is located is in the unfolded posture, the station units 121 are located on the pushing path of the push assembly 32, the mouth of the packaging container on the station unit 121 faces the side where the push assembly 32 is located, the push assembly 32 pushes the material on the material conveying belt 31 to fill into the packaging container on the station unit 121, and the push assembly 32 pushes the packaging container out of the elastic bag supporting mechanism, in short, the material filling mechanism 3 is used for both material filling and bag returning, the packaging container is separated from the station unit immediately after filling the material to enter the next process for processing. Specifically, the push assembly 32 comprises a push rod and a linear pushing driving mechanism, in order to improve the compactness of the structure and the synchronism of the action, all the push assemblies 32 share one linear pushing driving mechanism, the push rods matched with the respective station units 121 are connected to a bracket, then the bracket is driven by the linear pushing driving mechanism to move, the bracket is also slidingly connected to a guiding sliding mechanism parallel to the linear pushing driving mechanism, to ensure the accuracy and stability of the pushing action of the push rod.

[0063] Further, as Figure 10As shown, the material filling mechanism 3 is arranged at a preset work station, and a discharging conveying belt 4 is arranged at the preset work station, the discharging mechanism is used for receiving the filled packaging bag pushed out, and the discharging conveying belt 4 receives the packaging bags on all work station units 121 in the work station assembly 12 at the same time, and the structure is simple, compact and easy to implement. A sealing mechanism 5 is arranged at the inlet end of the discharging conveying belt 4, so that the filled packaging bag just pushed out is sealed by the sealing mechanism 5 first and then sent out by the discharging conveying belt 4. More specifically, a limiting baffle 51 capable of lifting is arranged above the inlet end of the discharging conveying belt 4, and the limiting baffle 51 limits and blocks the filled packaging bag entering the inlet end of the discharging conveying belt 4, so that the mouth of the packaging bag is just at the sealing mechanism 5, thereby ensuring accurate sealing processing. In order to improve the quality of sealing processing, a stretching mechanism 52 is arranged at the sealing mechanism 5, the stretching mechanism 52 includes a pair of left and right stretching clamps, the left and right stretching clamps are used for clamping the two side edges of the mouth of the packaging bag respectively, and the left and right stretching clamps can move towards each other to expand and contract, so that the mouth of the packaging bag can be stretched to keep flat to seal, improve the sealing quality, avoid the wrinkled condition of the mouth of the packaging bag, and ensure the sealing performance and appearance after sealing processing. The stretching mechanism 52 further includes a movable assembly, the movable assembly drives the left and right stretching clamps to switch between a avoiding position and a working position, the left and right stretching clamps do not hinder the filled packaging bag from entering the sealing mechanism 5 at the inlet end of the discharging conveying belt 4 when the left and right stretching clamps are at the avoiding position, and the left and right stretching clamps are switched to the working position to stretch and seal the mouth of the packaging bag after the filled packaging bag is pushed to the position.

[0064] In an embodiment, as shown in the drawings, Figure 16 The rotating plane of the rotating base body 11 of the packaging machine conveying mechanism 1 is 45° with the horizontal plane, and the work station unit 121 can still adopt Figure 1The elastic bag supporting mechanism is shown, and the orientation of the elastic bag supporting mechanism is 45° to the rotation plane of the rotating base 11, that is, the orientation of the mouth of the packaging container fitted on the elastic bag supporting mechanism is 45° to the rotation plane of the rotating base 11. Pre-set work stations are respectively arranged at the highest point and the lowest point of the conveying path of the packaging machine conveying mechanism 1. The pre-set work station at the highest point is provided with the packaging container supplying mechanism 2, and the pre-set work station at the lowest point is provided with the material filling mechanism 3. The packaging container supplying mechanism 2 feeds the packaging container to the work station unit 121 in the horizontal direction. At this time, the mouth of the packaging container fitted on the work station unit 121 faces the horizontal direction. The material filling mechanism 3 fills the material to the packaging container on the work station unit 121 in the vertical direction. At this time, the mouth of the packaging container fitted on the work station unit 121 vertically faces upward, which is suitable for filling of bulk materials. The material falls into the packaging container by gravity, and then the packaging bag filled with the material is pushed out of the work station unit 121 to realize bag discharging. Finally, sealing is performed to discharge the finished product. Alternatively, as shown in Figure 17 The pre-set work station at the lowest point is provided with the packaging container supplying mechanism 2, and the pre-set work station at the highest point is provided with the material filling mechanism 3. The packaging container supplying mechanism 2 feeds the packaging container to the work station unit 121 in the vertical direction. The material filling mechanism 3 fills the material to the packaging container on the work station unit 121 in the horizontal direction, and pushes the packaging bag filled with the material out of the work station unit 121. Finally, sealing is performed to discharge the finished product.

[0065] In an embodiment, as shown in Figure 18 The rotating plane of the rotating base 11 of the packaging machine conveying mechanism 1 is in the horizontal direction. The work station unit 121 can still adopt the elastic bag supporting mechanism shown in Figure 1 The orientation of the elastic bag supporting mechanism is perpendicular to the rotation plane of the rotating base 11, that is, the orientation of the mouth of the packaging container fitted on the elastic bag supporting mechanism is 90° to the rotation plane of the rotating base 11. Since the rotation plane of the rotating base 11 is in the horizontal direction, the mouth of the packaging container fitted on the work station unit 121 vertically faces upward. Pre-set work stations are respectively arranged on the two sides of the diameter direction of the annular conveying path of the packaging machine conveying mechanism 1. The pre-set work station on one side is provided with the packaging container supplying mechanism 2, and the pre-set work station on the other side is provided with the material filling mechanism 3. The packaging container supplying mechanism 2 feeds the packaging container to the work station unit 121 in the vertical upward direction. The material filling mechanism 3 fills the material to the packaging container on the work station unit 121 in the vertical downward direction. This structure is suitable for filling of bulk materials. The material falls into the packaging container by gravity, and then the packaging bag filled with the material is pushed out of the work station unit 121 to realize bag discharging. Finally, sealing is performed to discharge the finished product.

[0066] In an embodiment, as shown inFigure 19 and Figure 20 As shown in the drawings, the work station units 121 in the work station assembly 12 are connected in sequence, adjacent work station units 121 are connected in sliding mode, the sliding direction is towards the radial direction of the rotating base 11, adjacent work station units 121 slide relative to each other under the drive of the unfolding and folding drive mechanism, so that the work station assembly 12 switches between the unfolded and folded attitudes, more specifically, the sliding direction between adjacent work station units 121 is parallel to the rotating plane of the rotating base 11, so that the plane in which the work station units 121 slide relative to each other is parallel to the rotating plane of the rotating base 11, that is, the work station assembly 12 changes attitude in a plane parallel to the rotating plane of the rotating base 11, the sliding direction between adjacent work station units 121 can be along the radial direction of the rotating base 11, or parallel to the radial direction of the rotating base 11, or at an angle to the radial direction of the rotating base 11, the work station units 121 in the work station assembly 12 can be arranged in a straight line, or can be arranged in a curve. Preferably, when the work station units 121 in the work station assembly 12 are arranged in a straight line, it is the unfolded attitude, which facilitates the side-by-side arrangement of the mechanism units of the work mechanisms to perform the packaging and processing procedures on the work station units 121, further, the work station units 121 in the work station assembly 12 are arranged in a straight line along the tangential direction of the rotating circumferential direction of the rotating base 11, which facilitates the structural design of the work mechanisms, the mechanism units in each work mechanism are arranged side by side in a straight line, which is easy to design and implement, and the structure is compact. When the work station assembly 12 rotates to a predetermined work station and is in the unfolded attitude in which the work station units 121 are arranged in a straight line, each work station unit 121 corresponds to each mechanism unit in the work mechanism one by one, so that each mechanism unit performs the packaging and processing procedures on each work station unit 121. When it is necessary to rotate the work station assembly 12 from one predetermined work station to the next predetermined work station, the work station assembly 12 is switched to the folded attitude to reduce the radius of rotation, specifically, when the work station units 121 in the work station assembly 12 are arranged along the tangential direction of the rotating circumferential direction of the rotating base 11, it is the folded attitude, that is, the work station units 121 that were arranged in a straight line along the tangential direction of the rotating circumferential direction of the rotating base 11 slide towards the radial direction of the rotating base 11, and finally reach the attitude in which the work station units 121 are arranged along the rotating circumferential direction of the rotating base 11, effectively reducing the radius of rotation of the rotating body, reducing the space required for rotation, reducing the volume of the packaging machine conveying mechanism 1, reducing the moment of inertia to enable faster rotation switching, thereby improving the efficiency of packaging and processing.

[0067] For Figure 19The shown station assembly 12, the unfolding and folding driving mechanism can be a linear driving mechanism arranged directly between each adjacent station unit 121, the moving direction of the linear driving mechanism is along the sliding direction between the adjacent station units 121, that is, the relative sliding between the adjacent station units 121 can be realized to switch the station assembly 12 between the unfolded attitude and the folded attitude; the unfolding and folding driving mechanism can also adopt the structure composed of the connecting rod assembly 131 and the sliding piece 132 shown in Figure 21 The connecting rod assembly 131 and the sliding piece 132 shown in the figure constitute a structure, the sliding piece is driven to move by the driving member, and then the sliding piece drives the station unit 121 to relatively slide through the connecting rod assembly to switch the attitude of the station assembly 12, and the driving member can be a cam guide member, a linear telescopic driving mechanism, etc.

[0068] In addition to the above-mentioned embodiments, the station units 121 in each station assembly 12 can also not need to have a direct connection relationship, as long as the station units 121 can relatively move to change the attitude of the station assembly 12, that is, each station unit 121 can be connected to the rotating base body 11 through a corresponding unfolding and folding driving mechanism, and each station unit 121 is driven to move relative to the rotating base body 11 through the unfolding and folding driving mechanism to change the attitude of the station assembly 12.

[0069] The above is only the preferred embodiment of the present application, it should be noted that the above-mentioned preferred embodiment should not be regarded as a limitation of the present application, the protection scope of the present application should be limited by the scope defined by the claims. For ordinary skilled in the art, several improvements and refinements can be made without departing from the spirit and scope of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A packaging machine, characterized in that, The packaging machine conveying mechanism includes operation mechanisms for different packaging processes arranged at each preset work station on the conveying path of the packaging machine conveying mechanism; The packaging machine conveying mechanism includes a rotating base (11), a work station assembly (12), and an unfolding and folding driving mechanism. The rotating base (11) is intermittently rotated by a rotating driving mechanism. The work station assembly (12) is connected to the rotating base (11). The work station assembly (12) includes at least two work station units (121) for placing packaging containers. The work station units (121) are provided with holding mechanisms for fixing the packaging containers. The work station units (121) are movable under the action of the unfolding and folding driving mechanism to switch the work station assembly (12) between an unfolded posture and a folded posture. The rotating radius of the work station assembly (12) in the folded posture is smaller than the rotating radius of the work station assembly (12) in the unfolded posture. When the work station assembly (12) is in the unfolded posture, the work station units (121) in the work station assembly (12) are arranged in a straight line along the tangential direction of the rotating circumferential direction of the rotating base (11). When the work station assembly (12) is in the folded posture, the work station units (121) in the work station assembly (12) are arranged along the rotating circumferential direction of the rotating base (11). The operation mechanisms include a packaging container supply mechanism (2) and a material filling mechanism (3). The supply units of the packaging container supply mechanism (2) are arranged in a straight line and parallel to each other and load and place the packaging containers to each work station unit (121) of the work station assembly (12). The filling units of the material filling mechanism (3) are arranged in a straight line and parallel to each other and perform material filling on the packaging containers in each work station unit (121) of the work station assembly (12). When the work station assembly (12) is in the unfolded posture, each work station unit (121) in the work station assembly (12) corresponds to each supply unit of the packaging container supply mechanism (2). When the work station assembly (12) is in the unfolded posture, each work station unit (121) in the work station assembly (12) corresponds to each filling unit of the material filling mechanism (3). The work station assembly (12) switches to the folded posture when circulating between each preset work station.

2. The packaging machine of claim 1, characterized in that, The work station units (121) in the work station assembly (12) are sequentially connected. Adjacent work station units (121) are hingedly connected. Adjacent work station units (121) relatively deflect under the action of the unfolding and folding driving mechanism to switch the work station assembly (12) between the unfolded posture and the folded posture. Alternatively, the work station units (121) in the work station assembly (12) are sequentially connected. Adjacent work station units (121) are slidingly connected. The sliding direction is toward the radial direction of the rotating base (11). Adjacent work station units (121) relatively slide under the action of the unfolding and folding driving mechanism to switch the work station assembly (12) between the unfolded posture and the folded posture.

3. The packaging machine of claim 2, wherein, When the number of the work station units (121) in the work station assembly (12) is even, the two work station units (121) in the middle are movably connected to the rotating base body (11); when the number of the work station units (121) in the work station assembly (12) is odd, the work station unit (121) in the middle is fixedly connected to the rotating base body (11).

4. The packaging machine of claim 2, wherein, The unfolding and folding driving mechanism comprises a driving member, a connecting rod assembly (131) and a sliding piece (132), the sliding piece (132) is slidably connected to the rotating base body (11), the sliding direction of the sliding piece (132) is along the radial direction of the rotating circumference of the rotating base body (11), the sliding piece (132) is connected to the work station units (121) in the work station assembly (12) through the connecting rod assembly (131), and the driving member drives the sliding piece (132) to move along the radial direction of the rotating circumference of the rotating base body (11) to change the work station assembly (12) between the unfolded posture and the folded posture.

5. The packaging machine of claim 4, wherein, The driving member comprises a cam guide member (133), and the sliding piece (132) is slidably connected to the cam guide member (133); or the driving member comprises a driving piece (134) and a pull rod (135), the driving piece (134) is slidably connected to the rotating base body (11), the sliding direction of the driving piece (134) is perpendicular to the rotating plane of the rotating base body (11), one end of the pull rod (135) is hingedly connected to the driving piece (134), and the other end of the pull rod (135) is hingedly connected to the sliding piece (132).

6. The packaging machine of claim 1, wherein, The work station assembly (12) is uniformly spaced along the rotating circumferential direction of the rotating base body (11) and is provided with at least two work station units (121).

7. The packaging machine of claim 1, wherein, The holding mechanism is an elastic bag supporting mechanism, the elastic bag supporting mechanism comprises an elastic bag supporting piece (122) elastically held in an open state, the elastic bag supporting piece (122) is detachably connected to the work station unit (121), and the elastic bag supporting piece (122) is used for extending into the bag type packaging container to elastically hold the bag type packaging container in the open state.

8. The packaging machine of claim 7, wherein The loosening and pushing mechanism (123) for driving the elastic bag supporting piece (122) to switch to the folded state is arranged on the work station unit (121) or at a preset work station on the rotating path of the work station assembly (12).

9. The packaging machine of claim 1, wherein, The rotating plane of the rotating base body (11) is along the transverse direction, the work station unit (121) receives the packaging container along the vertical direction, and the packaging container on the work station unit (121) receives the filled material along the vertical direction; or the rotating plane of the rotating base body (11) is along the vertical direction, the work station unit (121) receives the packaging container along the transverse direction, and the packaging container on the work station unit (121) receives the filled material along the transverse direction; or the rotating plane of the rotating base body (11) is at an angle of 45° with the horizontal plane, the work station unit (121) receives the packaging container along the transverse direction, and the packaging container on the work station unit (121) receives the filled material along the vertical direction, or the work station unit (121) receives the packaging container along the vertical direction, and the packaging container on the work station unit (121) receives the filled material along the transverse direction.

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