Packaging device and retractable packaging machine

Abstract

A packaging device, comprising: a frame (100), and a loading device (200), a bag feeding device (300) and a bag receiving device (400) that are arranged on the frame (100). The bag receiving device (400) comprises a support assembly (401) and bag opening devices (402). The support assembly (401) is rotatably arranged on the frame (100), and the bag opening devices (402) are symmetrically arranged on the support assembly (401) relative to a rotating shaft of the support assembly (401). The bag feeding device (300) is used for delivering packaging bags to the bag opening devices (402) located at the bag feeding stations, the bag receiving device (400) is used for driving the packaging bags to rotate from the bag feeding stations to loading stations, the loading device (200) is used for loading materials into the packaging bags, and the rotating shaft of the support assembly (401) is perpendicular to the loading direction of the loading device (200).

Description

Packaging equipment and telescopic packaging machine

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 7, 2023, with application number 202322435423.3 and invention name “A bagging packaging device”, and the Chinese patent application filed with the China Patent Office on September 7, 2023, with application number 202311154216.9 and invention name “A telescopic packaging machine”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The invention relates to the technical field of packaging, in particular to a telescopic packaging machine for packaging equipment. Background Art

[0003] To facilitate the transportation and storage of materials, such as food, daily necessities, or medicines, they need to be packaged in bags. When packaging the materials, you need to first open the bag opening and then place the materials into the bag.

[0004] Existing packaging equipment consists of a bag loading device and a bag receiving device. The bag is opened by the bag loading device and placed on the bag receiving device. The material is then manually placed into the bag, removed from the bag receiving device, and finally the bag opening is sealed to complete the packaging. Manual material placement results in low material packaging efficiency, which is not conducive to packaging large quantities of materials and is not suitable for continuous and large-scale assembly line production scenarios.

[0005] Summary of the Invention

[0006] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology and provide a packaging device.

[0007] In order to solve the above technical problems, the technical solution of the present invention is:

[0008] A packaging device comprises a frame, a loading device, a bag loading device and a bag receiving device arranged on the frame;

[0009] The bag receiving device includes a support assembly and a bag opener, wherein the support assembly is rotatably arranged on the frame, and the bag opener is symmetrically arranged on the support assembly with respect to the rotation axis of the support assembly;

[0010] The bag loading device is used to deliver the packaging bag to the bag opener located at the bag loading station, the bag receiving device is used to drive the packaging bag to rotate from the bag loading station to the loading station, and the loading device is used to load materials into the packaging bag, and the rotating axis is perpendicular to the loading direction of the loading device.

[0011] Furthermore, the support assembly includes a support plate, and the bag opener is arranged on the support plate.

[0012] Furthermore, along the axial direction of the rotating shaft, a plurality of bag openers are provided on the supporting assembly, and a bag loading device and a material loading device corresponding one to one to the bag openers are provided on the frame.

[0013] Furthermore, there are multiple support plates, and the multiple support plates are evenly arranged around the rotation axis.

[0014] Furthermore, an angle between two adjacent support plates along the circumferential direction of the rotation axis is 30°, 45°, 60° or 90°.

[0015] Furthermore, the support assembly includes a connecting plate, which is rotatably arranged on the frame. The two ends of the connecting plate symmetrical about the rotation axis are bent 45° along the rotation direction of the connecting plate to form a first end plate and a second end plate, and the bag opener is symmetrically arranged on the first end plate and the second end plate about the rotation axis.

[0016] Furthermore, when the bag stretcher is located at the bag loading station, the bag loading device is used to put the packaging bag on the bag stretcher in a vertical direction.

[0017] Furthermore, the feeding device includes a push rod and a slide structure, the push rod and the slide structure are slidably matched, and the push rod is used to push the material located in the slide structure into the packaging bag with the bag opening opened.

[0018] Furthermore, it also includes an output mechanism arranged on the frame, and the output mechanism is used to transport the packaging bag containing the material; it also includes a sealing mechanism arranged on the frame, and the sealing mechanism is used to seal the bag opening of the packaging bag containing the material.

[0019] Furthermore, the bag loading device includes a packaging bag placing mechanism, a packaging bag conveying mechanism and a packaging bag transferring mechanism. The packaging bag placing mechanism is used to store packaging bags, the packaging bag conveying mechanism is used to convey the packaging bags located in the packaging bag placing mechanism to the packaging bag transferring mechanism, and the packaging bag transferring mechanism is used to place the packaging bags on the bag stretcher.

[0020] Furthermore, the bag opener includes a first movable plate and a second movable plate symmetrically arranged on the support member, the first movable plate and the second movable plate are hinged to the support member, and also includes a cylinder arranged on the support member, the cylinder is used to drive the first movable plate and the second movable plate to rotate simultaneously in a direction closer to or away from each other.

[0021] Compared with the prior art, the present invention has the following advantages: the packaging equipment provided by the present invention drives the bag opener to rotate by rotating the support assembly, causing the bag opener to move from the bag loading station to the loading station. The bag loading device places the packaging bag on the bag opener, and the bag opener opens the bag opening of the packaging bag. The support assembly rotates to drive the packaging bag to the loading station, and the loading device loads the material into the packaging bag, completing the initial packaging of the material. The packaging equipment provided by the present invention does not require manual loading of materials, saving time for manual loading of materials, speeding up the pace of material packaging, and improving the efficiency of material packaging. It is conducive to the packaging of large quantities of materials and can be applied to continuous and large-scale assembly line production scenarios.

[0022] A telescopic packaging machine comprises a frame, a feeding device, a bag feeding device and a bag receiving device arranged on the frame;

[0023] The bag receiving device includes a bag opener and a telescopic mechanism, the telescopic mechanism is rotatably arranged on the frame, the bag opener is symmetrically arranged on the telescopic mechanism about the rotation axis of the bag receiving device, and the telescopic mechanism is used to drive the bag opener to move toward or away from the rotation axis;

[0024] The bag loading device is used to deliver the packaging bag to the bag opener located at the bag loading station, the bag receiving device is used to drive the packaging bag to rotate from the bag loading station to the loading station, and the loading device is used to load materials into the packaging bag. The rotation axis of the bag receiving device is perpendicular to the loading direction of the loading device;

[0025] During the process of the bag openers rotating from the bag loading station to the material loading station, the telescopic mechanism drives the distance between the bag openers located on both sides of the rotating shaft to first decrease and then increase.

[0026] Furthermore, the telescopic mechanism includes a rotating shaft, a driving mechanism, a first support plate and a second support plate. The rotating shaft is rotatably arranged on the frame, and the first support plate and the second support plate are slidably arranged on the rotating shaft. The driving mechanism is used to drive the first support plate and the second support plate to slide parallel to the direction perpendicular to the rotating axis. The bag opener is symmetrically arranged at the end of the first support plate and the end of the second support plate about the rotating axis of the rotating shaft.

[0027] Furthermore, the output end of the driving mechanism is connected to the first support plate and the second support plate; the telescopic mechanism also includes a guide structure arranged on the rotating shaft, and the first support plate and the second support plate are respectively slidably matched with the guide structure, and the driving mechanism is used to drive the bag opener to slide on the guide structure toward or away from the rotating axis.

[0028] Furthermore, the first support plate and the second support plate are symmetrically arranged on both sides of the rotation axis about the plane where the rotation axis is located, the first support plate and the second support plate are parallel to each other, and the rotation axis is arranged between the first support plate and the second support plate.

[0029] Furthermore, the driving mechanism includes a first connecting rod, a second connecting rod and a driving device, one end of the first connecting rod is hinged to the rotating shaft, and the other end of the first connecting rod slides with the first support plate along the axial direction of the rotating shaft, one end of the second connecting rod is hinged to the rotating shaft, and the other end of the second connecting rod slides with the second support plate along the axial direction of the rotating shaft, and the driving device is used to drive the first connecting rod and the second connecting rod to rotate simultaneously in a direction away from or close to the rotating shaft.

[0030] Furthermore, the driving device includes a slide, a push-pull rod and a driver, the rotating shaft is a hollow shaft, the slide passes through the rotating shaft and is slidably arranged on the rotating shaft along the axial direction of the rotating shaft, the two ends of the slide are respectively slidably matched with the first connecting rod and the second connecting rod along the extension direction of the first connecting rod and the second connecting rod, the push-pull rod is arranged in the rotating shaft and slidably matched with the rotating shaft along the axial direction of the rotating shaft, the push-pull rod is fixedly connected to the slide, and the other end of the push-pull rod is connected to the driver located at the end of the rotating shaft, and the driver is used to drive the first connecting rod and the second connecting rod to rotate by driving the push-pull rod to reciprocate along the axial direction of the rotating shaft.

[0031] Furthermore, the driver includes a drive ring and a drive head, the drive ring is coaxially connected to the push-pull rod, and a cam groove extending along the circumference of the rotating shaft is provided on the outer ring surface of the drive ring, and the drive head is slidingly connected to the cam groove along the circumference of the rotating shaft. The drive head rotates along the circumference of the rotating shaft under the action of external force and drives the drive ring to reciprocate along the axial direction of the rotating shaft, or the drive head remains stationary, and the drive ring rotates along the circumference of the rotating shaft under the action of external force and drives the drive ring to reciprocate along the axial direction of the rotating shaft.

[0032] Compared with the prior art, the advantages of the present invention are: a telescopic packaging machine provided by the present invention, whose bag receiving device includes a telescopic mechanism and a bag opener, the telescopic mechanism is rotatably arranged on the frame, the rotating axis of the telescopic mechanism is perpendicular to the loading direction of the loading device, and in the process of the bag opener rotating from the bag loading station to the loading station, the telescopic mechanism drives the distance between the bag openers located on both sides of the rotating axis to first decrease and then increase, which can make the rotation radius of the bag receiving device first decrease and then increase, thereby saving the space occupied by the bag receiving device, and also can temporarily reduce the rotational inertia of the bag receiving device, thereby improving the safety of the telescopic packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a schematic diagram of the three-dimensional structure of the packaging equipment of the present invention;

[0034] FIG2 is a front view schematic diagram of the packaging equipment of the present invention;

[0035] FIG3 is a schematic top view of the packaging equipment of the present invention;

[0036] FIG4 is a schematic diagram of the three-dimensional structure of the bag receiving device according to the first embodiment of the present invention;

[0037] FIG5 is a front view of the structure of the bag receiving device according to the first embodiment of the present invention;

[0038] FIG6 is a front view of the structure of the bag receiving device according to the second embodiment of the present invention;

[0039] FIG7 is a schematic diagram of the three-dimensional structure of the bag receiving device according to the third embodiment of the present invention;

[0040] FIG8 is a front view of the structure of the bag receiving device according to the third embodiment of the present invention;

[0041] FIG9 is a schematic diagram of the three-dimensional structure of the bag receiving device according to the fourth embodiment of the present invention;

[0042] FIG10 is a front view of the structure of the bag receiving device according to the fourth embodiment of the present invention;

[0043] FIG11 is a front view of the structure of the bag receiving device without the first supporting assembly according to the fourth embodiment of the present invention;

[0044] FIG12 is a schematic front view of the structure of the drive ring according to the fourth embodiment of the present invention;

[0045] FIG13 is a front view structural diagram of the bag receiving device in the fourth embodiment of the present invention in the unfolded state.

[0046] In the figure: frame 100, loading device 200, push rod 201, slide structure 202, bag loading device 300, packaging bag placing mechanism 301, packaging bag conveying mechanism 302, packaging bag transferring mechanism 303, bag receiving device 400, support assembly 401, first support plate 4011, second support plate 4012, connecting plate 4013, first end plate 4014, second end plate 4015, rotating shaft 4016, bag opener 402, first connecting rod 405, second connecting rod 406, slide plate 407, drive ring 408, cam groove 4081, cam 40811, drive head 409, drive motor 410, output mechanism 500, sealing mechanism 600. DETAILED DESCRIPTION

[0047] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] When packaging materials in bags, the bag opening must first be opened, the material to be packaged is placed in the bag, and finally the bag opening is sealed. Because bags are made of thin, light, and soft material, the opening of the finished bag is typically closed. Manual bag opening requires friction to pull the bag opening open, which can easily cause slippage between the bag and the hand. This inefficiency makes manual bag opening and loading unsuitable for high-volume assembly line production. This is why existing bagging equipment has emerged. Existing bagging packaging equipment includes a bag loading device and a bag receiving device. The bag loading device allows the bag opening of the packaging bag to be opened and then placed on the bag receiving device. For example, suction cups can be used to suck the packaging bag on both sides of the bag opening, and then the suction cups can be moved in opposite directions to open the bag opening. The suction cups are then moved toward the bag receiving device to allow the packaging bag to be placed on the bag receiving device. The bag receiving device keeps the bag opening open, and the material is manually placed into the packaging bag. The packaging bag is then detached from the bag receiving device and sealed, thereby completing the packaging of the material. Existing bagging packaging equipment allows the bag opening of the packaging bag to be opened more quickly, which improves work efficiency to a certain extent. However, when producing materials on a large-scale assembly line, the efficiency of manual loading is low and cannot meet the packaging speed requirements of assembly line production.

[0049] A packaging device provided by an embodiment of the present invention, as shown in FIG. 1 to FIG. 3 , includes a frame 100 , a loading device 200 , a bag loading device 300 , and a bag receiving device 400 disposed on the frame 100 .

[0050] As shown in Figure 2 , the loading device 200 can be a conveyor belt, a robotic arm, or a pushing device. As an example, the loading direction of the loading device is shown as the X direction in Figures 2 and 3 . As an example, the pushing device can include a push rod 201 and a slide structure 202. The slide structure is fixed to the frame 100, and the push rod 201 slidably engages with the slide structure 202. After the packaging material enters the slide structure 202, the push rod pushes the material in the slide structure 202 into the packaging bag and can also push the material and the packaging bag away from the bag receiving device 400.

[0051] The bag loading device 300 may include a bag placement mechanism 301, a bag conveying mechanism 302, and a bag transfer mechanism 303, which are arranged on the frame 100 along the loading direction. The bag placement mechanism 301 is used to store bags, the bag conveying mechanism 302 is used to transfer bags from the bag placement mechanism 301 to the bag transfer mechanism 303, and the bag transfer mechanism 303 is used to place bags on the bag opener 402. The bag loading device 300 can place bags on the bag opener 402 horizontally or vertically.

[0052] The bag receiving device 400 may include a support assembly 401 and a bag opener 402. The support assembly 401 may be rotatably arranged on the frame 100. The bag opener 402 is symmetrically arranged on the support assembly 401 about the rotation axis of the support assembly 401. The rotation axis of the support assembly 401 is perpendicular to the loading direction. Multiple bag openers 402 may be arranged along the rotation axis direction of the support assembly 401.

[0053] The support assembly 401 may be a support plate or a support rod, and the support plate or support rod may be one or more. When a support plate is used as the support assembly 401, a weight-reducing hole may be provided on the support plate in order to reduce the moment of inertia of the support plate during rotation. When the support assembly 401 rotates, it drives the bag opener 402 to rotate, so that the position of the bag opener 402 switches between the bag loading station and the loading position. The bag opener 402 is used to keep the bag opening of the packaging bag in an open state. As a possible embodiment, the bag opener 402 may include a first movable plate, a second movable plate and a linear motor provided on the support plate. The first movable plate and the second movable plate may be slidably provided on the support plate, and the first movable plate and the second movable plate are driven by the linear motor to move closer to or away from each other. The bag opener 402 can also be a machine clamp body, which can be two symmetrically arranged clamping parts, which are used to clamp the packaging bag at both ends of the outer side of the bag opening. The two clamping parts move towards each other to squeeze the packaging bag so that the bag opening opens, and the two clamping parts move in opposite directions to stretch the packaging bag so that the bag opening closes. After the material is loaded, the clamping parts release the packaging bag so that the packaging bag can be transported to other locations.

[0054] When the bag-opening device 402 rotates with the support assembly 401 to the bag-loading station, the linear motor drives the first and second movable plates toward each other, facilitating their insertion into the bag. At the bag-loading station, the bag-loading device 300 opens the bag opening and places the bag over the first and second movable plates, ensuring that the first and second movable plates are at least partially within the bag. The linear motor then drives the first and second movable plates away from each other and into contact with the bag, allowing the first and second movable plates to open the bag opening.

[0055] Similarly, the first movable plate and the second movable plate can also be hinged to the support assembly 401, and a cylinder is set on the support assembly 401 to drive the first movable plate and the second movable plate to rotate towards or away from each other at the same time, which can also achieve the above function.

[0056] The first movable plate and the second movable plate are moved to the loading position by rotating the support assembly 401 , thereby moving the packaging bag to the loading position.

[0057] At the loading position, the opening of the packaging bag faces the loading device 200, which then loads the material into the bag. In one possible embodiment, the loading device 200 can be a conveyor belt, which transports the material to the opening of the packaging bag and into the bag. In another possible embodiment, the loading device can be a robotic arm, which grabs the material and places it into the bag.

[0058] After the material enters the packaging bag, the linear motor drives the first movable plate and the second movable plate to move closer to each other, so that the packaging bag is out of contact with the first movable plate and the second movable plate, and then the packaging bag is sent to the sealing mechanism 600 mechanically or manually.

[0059] The sealing mechanism 600 seals the packaging bag separated from the bag receiving device 400 and finally transports it to the next workstation through the output mechanism 500. The sealing mechanism 600 can be a heat sealer or a pressure sealer, which can be selected according to the type of packaging bag.

[0060] The output mechanism 500 may be a conveyor belt, a turntable, or a robotic arm.

[0061] Because the rotation axis of support assembly 401 is perpendicular to the X-direction, the orientation of the bag opening can be adjusted by adjusting the rotation angle of support assembly 401. As a possible example, as shown in Figure 2, support assembly 401 is in a vertical position, bag stretcher 402 is located at the bag loading station, and bag loading device 300 places the bag on bag stretcher 402. At this time, the bag opening is oriented in the same direction as the X-direction. Support assembly 401 rotates toward bag loading device 300. When support assembly 401 rotates to a horizontal position, the bag opening is oriented perpendicular to the X-direction, the bag is in a vertical position, and the bag is located at the first loading station. The vertical position of the bag facilitates the packaging of bulk materials such as walnuts, candy, salt, or liquids. After the bulk materials fall into the bag, they accumulate at the bottom of the bag under the action of gravity, making it easier to package the bulk materials. When support assembly 401 continues to rotate to a vertical position, the bag's opening faces away from the X-direction, and the bag becomes horizontal, positioned at the second loading station. When the bag is horizontal, it can be used to package relatively regular materials, such as chocolate, soap, or books, by pushing the materials horizontally into the bag along the X-direction.

[0062] Packaging efficiency can be further improved by adding a bag opener 402. As a possible embodiment, referring to Figures 4, 5, and 6, the support assembly 401 may include multiple support plates evenly arranged around a rotation axis. "Multiple" may refer to two or more. In this case, since the rotation axis of the support assembly 401 is parallel to the parallel direction of the support plates, adding more support plates does not increase the rotation radius of the support assembly 401. This allows the apparatus disclosed in this application to simultaneously load multiple bags without changing the equipment's footprint, achieving more efficient bagging within a limited space, without having to adjust the equipment's rack height.

[0063] As a possible example, when the support assembly 401 has only the first support plate 4011, the bag opener 402 with the packaging bag is respectively located at the bag loading station and the second loading station. When the packaging bag at the second loading station is loaded with material and separated from the bag opener 402, the bag opener 402 at the bag loading station rotates 180° to the second loading station for loading.

[0064] When the support assembly 401 further includes a second support plate 4012 that forms a 90° angle with the first support plate 4011 along the circumferential direction of the rotation axis, the bag opener 402 mounted on the first support plate 4011 is located at the bag loading station and the second loading station, respectively, while the bag opener 402 mounted on the second support plate 4012 is located at the first loading station. After the material passes through the second loading station and enters the bag on the first support plate 4011, the bag on the second support plate 4012 at the first loading station rotates 90° and enters the second loading station for loading.

[0065] Based on the above embodiments, those skilled in the art may choose to further adjust the angle between two adjacent support plates along the circumferential direction of the rotation axis to 30°, 45°, 60° or 90°, which will not be described in detail.

[0066] Similarly, the more bag openers 402 there are on the support assembly 401, the higher the working efficiency of the packaging equipment. For example, when multiple bag openers 402 are arranged in the axial direction of the rotating shaft, multiple bag loading devices 300 and material loading devices 200 corresponding to the bag openers 402 are arranged on the frame 100, so that multiple packaging bags can be loaded at one time, thereby further improving packaging efficiency.

[0067] As a possible embodiment, please refer to Figures 7 and 8. The support assembly 401 includes a connecting plate 4013, which is rotatably mounted on the frame 100. The connecting plate 4013 has two symmetrical ends about its rotational axis, each bent 45° along the rotational direction of the connecting plate 4013 to form a first end plate 4014 and a second end plate 4015. The bag opener 402 is symmetrically mounted on the first end plate 4014 and the second end plate 4015 about its rotational axis. This design allows the packaging bag to be held in an upright position at the second loading station, facilitating bulk packaging at the second loading station.

[0068] For example, when the bag opener 402 on the first end plate 4014 and the second end plate 4015 rotates to the bag loading station along with the connecting plate 4013, the bag loading direction of the bag opener 402 can be vertical, and the bag loading device 300 can put the packaging bag on the bag opener 402 in the direction away from the ground, or can put the packaging bag on the bag opener 402 in the direction toward the ground.

[0069] When the bag opener 402 is arranged on the support assembly 401 symmetrically about the rotation axis of the support assembly 401, during the process of the bag opener 402 switching between the bag loading station and the material loading station, the bag receiving device occupies a larger space and may have a larger moment of inertia, and more energy may be required to drive the bag receiving device to rotate.

[0070] The present invention provides a technical solution to address the aforementioned potential problems. This embodiment of the present invention provides a telescopic packaging machine comprising a frame 100, a loading device 200 mounted on the frame 100, a bag loading device 300, and a bag receiving device 400. The structures of the frame 100 and loading device 200 can be configured similarly to those of the aforementioned embodiments.

[0071] As an example, the bag receiving device 400 may include a bag opener 402 and a telescopic mechanism, wherein the telescopic mechanism is rotatably disposed on the frame 100, and the bag opener 402 is symmetrically arranged on the telescopic mechanism about the rotation axis of the telescopic mechanism, and the telescopic mechanism is used to drive the bag opener 402 to move toward or away from the rotation axis. For example, the telescopic mechanism may be a pneumatic push rod, a cylinder, or a cam driven by a motor, wherein a rotating shaft 4016 is disposed on the frame, and the pneumatic push rod is fixed to the rotating shaft 4016, and the telescopic rod of the pneumatic push rod is fixedly connected to the bag opener 402. When the pneumatic push rod rotates on the frame 100 along with the rotating shaft 4016, the bag opener 402 rotates along with the cylinder. When the telescopic rod of the pneumatic push rod is extended or retracted, the bag opener 402 moves toward or away from the rotation axis of the cylinder base. As another possible embodiment, the telescopic mechanism may further include a guide structure, a first support plate 4011, a second support plate 4012 and a linear drive. The guide structure may be a slide rail or a guide rod, etc., and the linear drive may be a commonly used device that can output linear motion, such as a cylinder, an oil cylinder or a linear motor; taking the guide rod as an example, the guide rod is fixedly connected to the rotating shaft 4016, the cylinder is fixed on the guide rod, the bag opener 402 is installed on the first support plate 4011 and the second support plate 4012, the first support plate 4011 and the second support plate 4012 are slidably matched with the guide rod, the telescopic rod of the cylinder is connected to the first support plate 4011 and the second support plate 4012, and when the cylinder is extended and retracted, it drives the first support plate 4011 and the second support plate 4012 to slide on the guide rod, thereby driving the bag opener 402 to slide on the guide rod.

[0072] The telescopic mechanism is rotatably arranged on the frame, and the rotating axis of the telescopic mechanism is perpendicular to the loading direction of the loading device 200. During the process of the bag opener 402 rotating from the bag loading station to the loading station, the telescopic mechanism drives the distance between the bag openers 402 located on both sides of the rotating axis to first decrease and then increase, which can make the rotation radius of the bag receiving device 400 first decrease and then increase, thereby saving the space occupied by the bag receiving device 400, and also making the rotational inertia of the bag receiving device 400 temporarily reduced, which can reduce the driving power consumption of the bag receiving device 400 and improve the safety of the packaging equipment.

[0073] As a possible embodiment, as shown in Figures 9 to 11, the telescopic mechanism may also include a rotating shaft 4016, a first support plate 4011, a second support plate 4012, and a driving mechanism, wherein the rotating shaft 4016 is rotatably disposed on the frame 100, and the first support plate 4011 and the second support plate 4012 are symmetrically disposed on both sides of the rotating shaft 4016 with respect to the plane where the rotating axis of the rotating shaft is located. In other words, the first support plate 4011 and the second support plate 4012 are disposed in parallel, the rotating shaft is located between the first support plate 4011 and the second support plate 4012, the first support plate 4011 and the second support plate 4012 are capable of sliding parallel to the radial direction of the rotating shaft 4016, the driving mechanism is disposed on the rotating shaft 4016, and the bag opener 402 is symmetrically disposed at the end of the first support plate 4011 and the end of the second support plate 4012 with respect to the rotating axis of the rotating shaft 4016.

[0074] The first support plate 4011 and the second support plate 4012 can be support plates or support rods. The first support plate 4011 and the second support plate 4012 can be connected to the rotating shaft 4016 through a slider and slide rail structure. For example, a slider is set on the first support plate 4011 and the second support plate 4012, and a slide rail is set on the rotating shaft 4016, and the slider is slidably connected to the slide rail, or a slider is set on the first support plate 4011 and the second support plate 4012, and a slide groove is set on the rotating shaft 4016, and the slide rail is slidably connected to the slide groove.

[0075] When using support plates as the first support plate 4011 and the second support plate 4012, in order to reduce the moment of inertia of the support plates when rotating, weight-reducing holes can be provided on the support plates. When the rotating shaft 4016 rotates, it drives the first support plate 4011 and the second support plate 4012 to rotate, thereby driving the bag opener 402 on the first support plate 4011 and the second support plate 4012 to rotate, so that the position of the bag opener 402 switches between the bag loading station and the loading position. The bag opener 402 is used to keep the bag opening of the packaging bag in an open state. As a possible embodiment, when the first support plate 4011 and the second support plate 4012 are both support plates, the bag opener 402 may include a first movable plate, a second movable plate and a linear motor provided on the support plate. The first movable plate and the second movable plate can be slidably provided on the support plate, and the first movable plate and the second movable plate are driven by the linear motor to move closer to or away from each other;

[0076] As the bag opener 402 rotates with the support plate to the bag loading station, the linear motor drives the first and second movable plates toward each other, facilitating their insertion into the bag. At the bag loading station, the bag loading device 300 opens the bag opening and places the bag over the first and second movable plates, ensuring that the first and second movable plates are at least partially within the bag. The linear motor then drives the first and second movable plates away from each other and into contact with the bag, opening the bag opening.

[0077] Similarly, the first movable plate and the second movable plate can also be hinged to the support plate, and a cylinder is set on the support plate to drive the first movable plate and the second movable plate to rotate towards or away from each other at the same time, which can also achieve the above function.

[0078] In order to reduce the moment of inertia of the bag receiving device, the rotation radius of the bag receiving device can be changed when the mass cannot be changed. As a possible embodiment, during the process of the bag opener 402 rotating from the bag loading station to the material loading station, the drive mechanism drives the first support plate 4011 and the second support plate 4012 to slide synchronously, causing the distance between the end of the first support plate 4011 and the end of the second support plate 4012 to first decrease and then increase. Half of the distance between the end of the first support plate 4011 and the end of the second support plate 4012 can be regarded as the rotation radius of the bag receiving device.

[0079] As a possible embodiment, the driving mechanism can be a crank-connecting rod mechanism, for example, a rotatable crankshaft is provided on the rotating shaft 4016, one end of the two connecting rods is hinged to the crank of the crankshaft, and the other ends of the two connecting rods are hinged to the first support plate 4011 and the second support plate 4012 respectively. When the crankshaft rotates, the first support plate 4011 and the second support plate 4012 can be driven by the connecting rod to slide synchronously in parallel along the radial direction of the rotating shaft 4016 in opposite directions or in opposite directions, so that the distance between the end of the first support plate 4011 and the end of the second support plate 4012 is first reduced and then increased, that is, the bag receiving device is first in a contraction state. As another possible embodiment, the drive mechanism may include a lead screw and two threaded sleeves, the threads of the two threaded sleeves having opposite rotation directions, the lead screw being rotatably mounted on the rotating shaft 4016, the two threaded sleeves being respectively mounted on the first support plate 4011 and the second support plate 4012, the lead screw and the two threaded sleeves being threadedly connected, and the lead screw is rotated to drive the first support plate 4011 and the second support plate 4012 to slide synchronously and parallel to each other in opposite directions along the radial direction of the rotating shaft 4016, thereby causing the distance between the end of the first support plate 4011 and the end of the second support plate 4012 to first decrease and then increase. The drive mechanism may also be a pneumatic cylinder, an oil cylinder, or a linear motor, and those skilled in the art will readily understand how to implement it, which will not be described in detail here.

[0080] As a possible implementation, please refer to Figure 11. The driving mechanism may include a first connecting rod 405, a second connecting rod 406, and a driving device, wherein one end of the first connecting rod 405 is hinged to the rotating shaft 4016, and the other end of the first connecting rod 405 is slidably engaged with the first support plate 4011 along the axial direction of the rotating shaft 4016; one end of the second connecting rod 406 is hinged to the rotating shaft 4016, and the other end of the second connecting rod 406 is slidably engaged with the second support plate 4012 along the axial direction of the rotating shaft 4016; the driving device is used to drive the first connecting rod 405 and the second connecting rod 406 to rotate simultaneously in a direction away from or toward the rotating shaft 4016. When the first connecting rod 405 and the second connecting rod 406 rotate simultaneously in a direction away from the rotation axis 4016, the other ends of the first connecting rod 405 and the second connecting rod 406 push the first support plate 4011 and the second support plate 4012 to slide synchronously in opposite directions. When the first connecting rod 405 and the second connecting rod 406 rotate simultaneously in a direction close to the rotation axis 4016, the other ends of the first connecting rod 405 and the second connecting rod 406 push the first support plate 4011 and the second support plate 4012 to slide synchronously toward each other. The driving device can be a telescopic rod or a rotary motor.

[0081] As shown in FIG11 , as a possible embodiment, the driving device may include a slide 407, a push-pull rod, and a driver. The rotating shaft 4016 is a hollow shaft. The slide 407 passes through the rotating shaft 4016 and is slidably arranged on the rotating shaft 4016 along the axial direction of the rotating shaft 4016. The two ends of the slide 407 are respectively slidably engaged with the first connecting rod 405 and the second connecting rod 406 along the extension direction of the first connecting rod 405 and the second connecting rod 406. The push-pull rod is arranged in the rotating shaft 4016 and is slidably engaged with the rotating shaft 4016 along the axial direction of the rotating shaft 4016. One end of the push-pull rod is connected to the slide 407, and the other end of the push-pull rod is connected to the driver located at the end of the rotating shaft 4016. The driver is used to drive the push-pull rod to reciprocate along the axial direction of the rotating shaft 4016 to drive the first connecting rod 405 and the second connecting rod 406 to rotate. When the driver drives the push-pull rod to reciprocate, the other end of the push-pull rod drives the slide 407 to reciprocate, and the slide 407 drives the first connecting rod 405 and the second connecting rod 406 to rotate. The driver can be a mechanism that can generate linear motion, such as a cylinder, a linear motor or a gear rack mechanism.

[0082] As a possible embodiment, please refer to FIG11 . The driver may include a drive ring 408 and a drive head 409. The drive ring 408 is coaxially connected to the push-pull rod. (See FIG12 ) The outer surface of the drive ring 408 is provided with a cam groove 4081 extending along the circumference of the rotating shaft 4016. The sidewalls of the cam groove 4081 are provided with a cam 40811 protruding toward the center of the cam groove 4081. The drive head 409 slidably engages with the cam groove along the circumference of the rotating shaft 4016. Under the action of an external force, the drive head 409 rotates along the circumference of the rotating shaft 4016, thereby driving the drive ring 408 to reciprocate axially along the rotating shaft 4016. The external force may be provided by a drive motor 410 or other mechanism capable of generating rotational motion, such as a rotating mechanism that forms a linkage with the rotating shaft 4016, thereby conveniently controlling the rotation angle of the drive head 409 by the rotation angle of the rotating shaft 4016. When the drive head 409 slides relatively in the cam groove 4081, the drive head 409 will contact the cam 40811 in the cam groove 4081. When the drive head 409 contacts the cam 40811, the drive head 409 will generate a thrust on the cam 40811, so that the drive ring 408 will move linearly along the axial direction of the rotating shaft 4016. When the drive head 409 contacts the cams 40811 located on the opposite side walls of the cam groove 4081, it will generate a thrust in the opposite direction on the cam 40811, thereby realizing the axial reciprocating motion of the drive ring 408 along the rotating shaft 4016, and then driving the push-pull rod connected to the drive ring 408 to reciprocate along the axial direction of the rotating shaft 4016, thereby achieving the purpose of driving the first support plate 4011 and the second support plate 4012 to slide.

[0083] As an example, when the bag opener 402 switches from the bag loading station to the material loading station, the drive head 409 can remain stationary while the shaft 4016 rotates, and the drive ring 408 rotates together with the shaft 4016, thereby causing relative rotation between the drive head 409 and the drive ring 408, and then the drive ring 408 drives the push-pull rod to move relative to the shaft 4016 along the axial direction, thereby driving the first support plate 4011 and the second support plate 4012 to slide, so that the distance between the bag opener 402 and the rotation axis gradually decreases, that is, during the rotation of the shaft 4016 The rotation radius of the bag receiving device 400 is reduced; alternatively, at the bag loading station, the driving head 409 can be rotated under the action of an external force to reduce the distance between the bag opener 402 and the rotation axis, and then the rotating shaft 4016 is driven to rotate, that is, the rotation radius of the bag receiving device 400 is first reduced, and then the rotating shaft 4016 is rotated. While the rotating shaft 4016 is rotated, the driving head 409 performs synchronous rotation in the same direction or follows the rotation in the same direction to a certain extent, so that the bag receiving device 400 remains in a state of reduced rotation radius during the rotation process, thereby reducing the moment of inertia and avoiding interference.

[0084] The first support plate 4011 and the second support plate 4012 can be arranged in an overlapping or staggered manner. With reference to the plane of symmetry of the first support plate 4011 and the second support plate 4012, which is the plane on which the rotation axis of the rotating shaft is located, an overlapping arrangement means that, when the bag receiving device is retracted or expanded, as shown in FIG13 , the orthographic projections of the first support plate 4011 and the second support plate 4012 on their respective symmetry planes always overlap; a staggered arrangement means that, when the bag receiving device is retracted or expanded, the orthographic projections of the first support plate 4011 and the second support plate on their respective symmetry planes never overlap. In order to save space occupied by the bag receiving device and to reduce the rotation radius of the bag receiving device, it is preferred that the first support plate 4011 and the second support plate 4012 be arranged in an overlapping manner.

[0085] To improve packaging efficiency, referring to Figures 9 and 13 , multiple bag openers 402 can be arranged on the first support plate 4011 and the second support plate 4012 along the axial direction of the rotating shaft 4016, and a bag loading device 300 and a material loading device 200 are provided on the frame 100, corresponding one-to-one with the bag openers 402. This arrangement allows multiple packaging bags to be loaded onto multiple bag openers 402 at the bag loading station at once, and multiple packaging bags to be loaded at the material loading station at once, thereby improving bagging efficiency while not increasing the rotation radius of the bag receiving device.

[0086] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A packaging device, characterized in that: It comprises a frame (100), a loading device (200) arranged on the frame (100), a bag loading device (300) and a bag receiving device (400); The bag receiving device (400) comprises a support assembly (401) and a bag opener (402), wherein the support assembly (401) is rotatably arranged on the frame (100), and the bag opener (402) is symmetrically arranged on the support assembly (401) about the rotation axis of the support assembly (401); The bag loading device (300) is used to deliver the packaging bag to the bag opener (402) located at the bag loading station, the bag receiving device (400) is used to drive the packaging bag to rotate from the bag loading station to the loading station, the loading device (200) is used to load materials into the packaging bag, and the rotation axis of the support component (401) is perpendicular to the loading direction of the loading device (200).

2. The packaging equipment according to claim 1, characterized in that: The support assembly (401) comprises a support plate, and the bag opener (402) is arranged on the support plate.

3. The packaging equipment according to claim 2, characterized in that: Along the axial direction of the rotating shaft, a plurality of bag openers (402) are arranged on the support plate, and a bag loading device (300) and a material loading device (200) corresponding one-to-one to the bag openers (402) are arranged on the frame (100).

4. The packaging equipment according to claim 2, characterized in that: There are a plurality of support plates, and the plurality of support plates are evenly arranged around the rotation axis.

5. The packaging device according to claim 4, characterized in that: The angle between two adjacent support plates along the circumferential direction of the rotation axis is 30°, 45°, 60° or 90°.

6. The packaging device according to claim 4, characterized in that: The support plate comprises a connecting plate (4013), and the two ends of the connecting plate (4013) symmetrically about the rotation axis are respectively bent 45 degrees along the rotation direction of the connecting plate (4013) to form a first end plate (4014) and a second end plate (4015), and the bag opener (402) is symmetrically arranged on the first end plate (4014) and the second end plate (4015) about the rotation axis.

7. The packaging device according to claim 6, characterized in that: When the bag opener (402) is located at the bag loading station, the bag loading device (300) is used to put the packaging bag on the bag opener (402) in a vertical direction.

8. The packaging device according to any one of claims 1 to 7, characterized in that: The feeding device (200) comprises a push rod (201) and a slideway structure (202), wherein the push rod (201) and the slideway structure (202) are slidably matched, and the push rod (201) is used to push the material located in the slideway structure (202) into the packaging bag with the bag opening opened; It also includes an output mechanism (500) arranged on the frame (100), and the output mechanism (500) is used to transport the packaging bag containing the material; It also includes a sealing mechanism (600) arranged on the frame (100), wherein the sealing mechanism (600) is used to seal a packaging bag containing materials; The bag loading device (300) comprises a packaging bag placing mechanism (301), a packaging bag conveying mechanism (302) and a packaging bag transferring mechanism (303) which are arranged on the frame (100) along the loading direction, the packaging bag placing mechanism (301) being used for storing packaging bags, the packaging bag conveying mechanism (302) being used for conveying packaging bags in the packaging bag placing mechanism (301) to the packaging bag transferring mechanism (303), and the packaging bag transferring mechanism (303) being used for placing packaging bags on the bag support device (402); The bag opener (402) includes a first movable plate and a second movable plate symmetrically arranged on the support assembly (401), the first movable plate and the second movable plate are hinged to the support assembly (401), and also includes a cylinder arranged on the support assembly (401), the cylinder is used to drive the first movable plate and the second movable plate to rotate simultaneously in a direction close to or away from each other.

9. A telescopic packaging machine, characterized in that: It comprises a frame (100), a loading device (200) arranged on the frame (100), a bag loading device (300) and a bag receiving device (400); The bag receiving device (400) comprises a bag opener (402) and a telescopic mechanism, wherein the telescopic mechanism is rotatably arranged on the frame (100), the bag opener (402) is symmetrically arranged on the telescopic mechanism about the rotation axis of the bag receiving device (400), and the telescopic mechanism is used to drive the bag opener (402) to move in a direction close to or away from the rotation axis; The bag loading device (300) is used to deliver the packaging bag to the bag opening device (402) located at the bag loading station, the bag receiving device (400) is used to drive the packaging bag to rotate from the bag loading station to the material loading station, the material loading device (200) is used to load materials into the packaging bag, and the rotation axis of the bag receiving device (400) is perpendicular to the material loading direction of the material loading device (200); During the process of the bag opening device (402) rotating from the bag loading station to the material loading station, the telescopic mechanism drives the bag opening devices (402) located on both sides of the rotating shaft to first decrease the distance between them and then increase the distance between them. Increase.

10. The telescopic packaging machine according to claim 9, characterized in that The telescopic mechanism comprises a rotating shaft (4016), a driving mechanism, a first support plate (4011) and a second support plate (4012); the rotating shaft (4016) is rotatably arranged on the frame (100); the first support plate (4011) and the second support plate (4012) are slidably arranged on the rotating shaft (4016); the driving mechanism is used to drive the first support plate (4011) and the second support plate (4012) to slide in parallel along a direction perpendicular to the rotation axis; the bag opener (402) is symmetrically arranged at the end of the first support plate (4011) and the end of the second support plate (4012) about the rotation axis of the rotating shaft (4016).

11. The telescopic packaging machine according to claim 10, characterized in that The output end of the driving mechanism is connected to the first support plate (4011) and the second support plate (4012); the telescopic mechanism also includes a guide structure arranged on the rotating shaft (4016), and the first support plate (4011) and the second support plate (4012) are respectively slidably matched with the guide structure, and the driving mechanism is used to drive the bag opener (402) to slide on the guide structure in a direction close to or away from the rotating shaft.

12. The telescopic packaging machine according to claim 10, characterized in that: The first support plate (4011) and the second support plate (4012) are symmetrically arranged on both sides of the rotating shaft (4016) with respect to the plane where the rotating shaft is located, the first support plate (4011) and the second support plate (4012) are parallel to each other, and the rotating shaft (4016) is arranged between the first support plate (4011) and the second support plate (4012).

13. The telescopic packaging machine according to claim 12, characterized in that The driving mechanism comprises a first connecting rod (405), a second connecting rod (406) and a driving device, wherein one end of the first connecting rod (405) is hinged to the rotating shaft (4016), and the other end of the first connecting rod (405) is slidably matched with the first support plate (4011) along the axial direction of the rotating shaft (4016); one end of the second connecting rod (406) is hinged to the rotating shaft (4016), and the other end of the second connecting rod (406) is slidably matched with the second support plate (4012) along the axial direction of the rotating shaft (4016); and the driving device is used for driving the first connecting rod (405) and the second connecting rod (406) to rotate simultaneously in a direction away from or close to the rotating shaft (4016).

14. The telescopic packaging machine according to claim 13, characterized in that The driving device comprises a slide plate (407), a push-pull rod and a driver. The rotating shaft (4016) is a hollow shaft. The slide plate (407) passes through the rotating shaft (4016) and is slidably arranged on the rotating shaft (4016) along the axial direction of the rotating shaft (4016). The two ends of the slide plate (407) are respectively slidably matched with the first connecting rod (405) and the second connecting rod (406) along the extension direction of the first connecting rod (405) and the second connecting rod (406). The push-pull rod is arranged in the rotating shaft (4016) and slides with the rotating shaft (4016) along the axial direction of the rotating shaft (4016). The push-pull rod is fixedly connected to the slide plate (407). The other end of the push-pull rod is connected to a driver located at the end of the rotating shaft (4016). The driver is used to drive the push-pull rod to reciprocate along the axial direction of the rotating shaft (4016) to drive the first connecting rod (405) and the second connecting rod (406) to rotate.

15. The telescopic packaging machine according to claim 14, characterized in that The driver comprises a drive ring (408) and a drive head (409), wherein the drive ring (408) is coaxially connected to the push-pull rod, and a cam groove (4081) extending along the circumference of the rotating shaft (4016) is provided on the outer ring surface of the drive ring (408), and the drive head (409) is slidably connected to the cam groove (4081) along the circumference of the rotating shaft (4016). Under the action of external force, the drive head (409) rotates along the circumference of the rotating shaft (4016) to drive the drive ring (408) to reciprocate along the axial direction of the rotating shaft (4016), or the drive head (409) remains stationary, and the drive ring (408) rotates with the rotating shaft (4016) to drive the drive ring (408) to reciprocate along the axial direction of the rotating shaft (4016).

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