Material metering and packaging device

Abstract

The utility model provides a material metering and packaging device. The material metering and packaging device comprises a rack; a bag feeding position, a feeding position and a discharging position are arranged on the peripheral side of the rotating disc assembly; the material receiving barrel assembly can be driven by the rotating disc assembly to switch positions among a bag feeding position, a feeding position and a discharging position, and the material receiving barrel assembly can be arranged in a lifting mode relative to the rotating disc assembly and can be in driving butt joint with or be separated from the rotating disc assembly; the feeding piece can feed materials into the material receiving barrel assembly; and the weighing assembly is arranged in a lifting mode and has a weighing state and an avoiding state, when the weighing assembly is in the weighing state, the weighing assembly ascends and supports and drives the material receiving barrel assembly to ascend together, the material receiving barrel assembly is separated from the rotating disc assembly in a driving mode, and when the weighing assembly is in the avoiding state, the weighing assembly descends and avoids rotation of the material receiving barrel assembly. The material metering and packaging device solves the problem that a material metering and packaging device in the prior art is large in weighing error.

Description

Technical Field

[0001] The utility model relates to the technical field of material packaging and metering, in particular to a material metering and packaging device. Background Art

[0002] In the bulk material processing industry, in order to avoid contamination during transportation, plastic bags are often used for packaging and transportation; some high-value materials require that the weight of each bag of material be controlled within a certain error range; industrial production requires automation and high efficiency in metering and packaging to avoid the introduction of pollutants. The existing material metering and packaging devices have the following problems:

[0003] 1. When the material metering and packaging device is in the weighing state, the weighing assembly rises to contact the bottom of the receiving barrel for weighing. During this process, the damping generated by the guide rail assembly installed on the barrel causes the weighing assembly to stabilize for a long time and the error is large.

[0004] 2. When the material metering and packaging device is at the second feeding station, part of the material will be below the bottom of the receiving barrel. When the weighing component rises and contacts the bottom of the receiving barrel, the upper surface of the weighing component will squeeze the part of the material, causing the material to break into small pieces or powder that are not desired. Utility Model Content

[0005] The main purpose of the utility model is to provide a material measuring and packaging device to solve the problem of large weighing error of the material measuring and packaging device in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a material metering and packaging device, comprising: a frame; a turntable assembly, the turntable assembly is rotatably connected to the frame, and the circumference of the turntable assembly is provided with a bag loading position, a feeding position and a discharge position; a material receiving barrel assembly, the material receiving barrel assembly is located on the circumference of the turntable assembly, and can switch positions among the bag loading position, the feeding position and the discharge position under the drive of the turntable assembly, the material receiving barrel assembly can be raised and lowered relative to the turntable assembly, and can be driven to dock with or separated from the turntable assembly; a feeding piece, The feeding piece is located at the feeding position, and the feeding piece can be connected with the material receiving barrel assembly located at the feeding position and add material to the material receiving barrel assembly; the weighing assembly is arranged below the material receiving barrel assembly located at the feeding position, the weighing assembly can be raised and lowered, and has a weighing state and an avoidance state. When the weighing assembly is in the weighing state, the weighing assembly rises and lifts up to drive the material receiving barrel assembly to rise together, and the material receiving barrel assembly is driven to separate from the turntable assembly. When the weighing assembly is in the avoidance state, the weighing assembly descends and avoids the rotation of the material receiving barrel assembly.

[0007] Furthermore, the material metering and packaging device also includes a locking assembly, which is connected to the turntable assembly and can lock or release the material receiving barrel assembly so that the material receiving barrel assembly and the turntable assembly move synchronously or the material receiving barrel assembly can be raised and lowered relative to the turntable assembly.

[0008] Furthermore, the material receiving barrel assembly includes: a material receiving barrel used to cooperate with the material bag, when the weighing assembly rises, the bottom of the material receiving barrel is lifted to drive the material receiving barrel to rise; the bag clamping assembly is located on the outside of the material receiving barrel and clamps the material bag on the material receiving barrel.

[0009] Furthermore, the material receiving barrel assembly also includes a positioning frame, which is connected to the material receiving barrel and rises and falls synchronously with the material receiving barrel. The weighing assembly includes a lifting frame and a lifting drive component, which is drivingly connected to the lifting frame. The top end of the lifting frame and the bottom end of the positioning frame have mutually cooperating positioning structures. When the weighing assembly rises, the positioning structure on the lifting frame cooperates with the positioning structure at the bottom end of the positioning frame to locate the relative position between the weighing assembly and the material receiving barrel assembly.

[0010] Furthermore, the weighing assembly also includes: a weighing piece, which is connected to the lifting frame and is located directly below the material receiving barrel; a flexible piece, which is located on the upper surface of the weighing piece and supports the bottom of the material receiving barrel; a lifting guide mechanism, which is located between the lifting frame and the frame and guides the direction of the up and down movement of the lifting frame.

[0011] Furthermore, the lifting frame has a U-shaped structure, the weighing member and the flexible member are both located at the bottom of the U-shaped structure, at least a portion of the material receiving barrel is located in the U-shaped structure, and the positioning structure on the lifting frame is located at the top of the U-shaped structure.

[0012] Furthermore, there is a notch on the top side of the material receiving barrel, and the feeding piece is located at the notch to extend into the material receiving barrel. The distance between the bottom end of the part of the feeding piece extending into the material receiving barrel and the lower side wall of the notch is the second distance. When the weighing assembly is in the avoidance state, the distance between the bottom end of the positioning frame and the top end of the lifting frame is the third distance. The second distance is greater than the stroke of the lifting drive member minus the third distance.

[0013] Furthermore, when the weighing assembly is in the avoidance state, the distance between the bottom end of the positioning frame and the top end of the lifting frame is a third distance, and when the weighing assembly is in the avoidance state, the distance between the bottom end of the material receiving barrel and the component of the weighing assembly located directly below the material receiving barrel is a fourth distance, and the fourth distance is greater than the third distance.

[0014] Furthermore, when the weighing assembly is in the avoidance state, the distance between the bottom end of the positioning frame and the top end of the lifting frame is a third distance, and the stroke of the lifting drive component is greater than the third distance.

[0015] Furthermore, the receiving barrel assembly also includes a barrel positioning piece, which is located at the top of the receiving barrel. The turntable assembly includes a turntable and a barrel rack, which is located at the peripheral edge of the turntable. When the receiving barrel descends, the barrel positioning piece and the barrel rack are centrally matched.

[0016] By applying the technical solution of the utility model, the material receiving barrel assembly is arranged in a liftable manner, and the weighing assembly is arranged in a liftable manner, so that the fixedly installed weighing assembly and the material receiving barrel assembly in a free state after being lifted work together. Since the material receiving barrel assembly can be driven and separated from the turntable assembly, there is no need to set a guide rail or other structure between the two, thereby avoiding the situation where the weighing assembly has a long stabilization time and a large error, achieving accurate measurement of block materials and greatly improving the accuracy of material measurement. Specifically, the receiving barrel assembly loads the bag at the bagging position, and then rotates to the feeding position driven by the turntable assembly. After the feeding piece adds material into the receiving barrel assembly, the weighing assembly rises to the weighing state, and the weighing assembly lifts the bottom of the receiving barrel assembly, and drives the receiving barrel assembly, the bag and the material inside to rise together, so as to weigh and measure the material. At this time, the receiving barrel assembly and the turntable assembly are disengaged, and the turntable assembly cannot drive the receiving barrel assembly to rotate. After the weighing meets the requirements, the weighing assembly drops to the avoidance state, and the receiving barrel assembly can be driven by the turntable assembly to rotate to the unloading position for unloading. The above setting method improves the material metering accuracy while realizing the parallel bagging, metering and packaging of multiple stations. Multiple stations can realize efficient metering of different materials or materials of different specifications according to target weight segments. At the same time, the feeding piece of this embodiment can directly convey the material into the material bag, thereby reducing the number of times and height of the material falling during the metering and loading process, and directly dropping the material delivered by the upstream feeder into the material bag, thereby minimizing the generation of broken materials and dust impurities, and reducing the impact of the production process on product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 An axonometric diagram of the material measuring and packaging device of the utility model is shown;

[0019] Figure 2 A front view of the material measuring and packaging device is shown;

[0020] Figure 3 A top view of a material measuring and packaging device is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Frame; 20. Turntable assembly; 21. Turntable; 22. Barrel holder; 30. Material receiving barrel assembly; 31. Material receiving barrel; 311. Notch; 32. Bag clamping assembly; 33. Positioning frame; 34. Barrel positioning part; 40. Feeding part; 50. Weighing assembly; 51. Lifting frame; 511. Positioning structure; 52. Lifting drive part; 53. Weighing part; 54. Flexible part; 55. Lifting guiding mechanism; 60. Locking assembly; 70. Turntable drive part; 80. Detection part; 90. Electrical control assembly. Detailed implementation mode

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to describe the present invention in detail.

[0024] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0025] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" usually refer to the directions shown in the drawings, or refer to the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inside, outside" refer to the inside and outside relative to the contours of the components themselves, but the above orientation words are not used to limit the present invention.

[0026] In order to solve the problem of large weighing errors in the existing material metering and packaging devices, the present invention provides a material metering and packaging device.

[0027] Such as Figures 1 to 3A material metering and packaging device shown in the figure includes a frame 10, a turntable assembly 20, a material receiving cylinder assembly 30, a feeding member 40, and a weighing assembly 50. The turntable assembly 20 is rotatably connected to the frame 10. The circumferential side of the turntable assembly 20 is provided with a bag loading position, a feeding position, and a discharging position. The material receiving cylinder assembly 30 is located on the circumferential side of the turntable assembly 20 and can be driven by the turntable assembly 20 to switch positions among the bag loading position, the feeding position, and the discharging position. The material receiving cylinder assembly 30 is arranged to be liftable relative to the turntable assembly 20 and can be driven to dock or separate from the turntable assembly 20. The feeding member 40 is located at the feeding position and can be docked with the material receiving cylinder assembly 30 at the feeding position and feed materials into the material receiving cylinder assembly 30. The weighing assembly 50 is arranged below the material receiving cylinder assembly 30 at the feeding position. The weighing assembly 50 is arranged to be liftable and has a weighing state and an avoidance state. When the weighing assembly 50 is in the weighing state, the weighing assembly 50 rises and lifts the material receiving cylinder assembly 30 to rise together. The material receiving cylinder assembly 30 is driven to separate from the turntable assembly 20. When the weighing assembly 50 is in the avoidance state, the weighing assembly 50 descends and avoids the rotation of the material receiving cylinder assembly 30.

[0028] In this embodiment, by arranging the material receiving cylinder assembly 30 to be liftable and cooperating with the liftable arrangement of the weighing assembly 50, the fixedly installed weighing assembly 50 and the material receiving cylinder assembly 30 in a free state after rising act together. Since the material receiving cylinder assembly 30 can be driven to separate from the turntable assembly 20, there is no need to set structures such as guide rails between the two, thus avoiding the situation of long weighing component stabilization time and large errors, achieving accurate metering of bulk materials, and greatly improving the accuracy of material metering. Specifically, when the material receiving cylinder assembly 30 loads a bag at the bag loading position and then rotates to the feeding position driven by the turntable assembly 20, after the feeding member 40 feeds materials into the material receiving cylinder assembly 30, the weighing assembly 50 rises to the weighing state. The weighing assembly 50 supports the bottom of the material receiving cylinder assembly 30 and drives the material receiving cylinder assembly 30, the bag, and the materials therein to rise together, so as to weigh and measure the materials. At this time, the material receiving cylinder assembly 30 is disengaged from the turntable assembly 20, and the turntable assembly 20 cannot drive the material receiving cylinder assembly 30 to rotate. After the weighing meets the requirements, the weighing assembly 50 descends to the avoidance state, and the material receiving cylinder assembly 30 can be driven by the turntable assembly 20 to rotate to the discharging position for discharging. The above setting method improves the accuracy of material metering while realizing the parallel operation of bag loading, metering, and packaging at multiple stations. Multiple stations can efficiently meter different materials or materials of different specifications in segments according to the target weight. At the same time, the feeding member 40 in this embodiment can directly convey the materials into the bag, thus reducing the number of material dropping times and the dropping height during metering and loading, directly dropping the materials conveyed by the upstream feeder into the bag, minimizing the generation of broken materials and dust impurities to the greatest extent, and reducing the impact of the production process on product quality.

[0029] AsFigures 1 to 3 As shown, in the present embodiment, in order to ensure the stability of the material receiving barrel assembly 30 during weighing, the material measuring and packaging device also includes a locking assembly 60, which is connected to the turntable assembly 20 and can lock or release the material receiving barrel assembly 30. In this way, when not weighing, the locking assembly 60 locks the material receiving barrel assembly 30, so that the material receiving barrel assembly 30 is integrated with the turntable assembly 20 under the action of the locking assembly 60, and the two can move synchronously, so that the turntable assembly 20 drives the material receiving barrel assembly 30 to rotate together. When weighing, the locking assembly 60 releases the material receiving barrel assembly 30, and the material receiving barrel assembly 30 can be driven by the weighing assembly 50 to move up and down relative to the turntable assembly 20 to achieve the effect of accurate weighing. The specific structural form of the locking assembly 60 can be set accordingly as needed. The locking assembly 60 of this embodiment includes two parts: a bracket and a locking member, wherein the bracket is connected to the upper edge of the turntable assembly 20, and the locking member cooperates with the top of the material receiving barrel assembly 30. There are various ways of cooperating between the locking member and the material receiving barrel assembly 30, such as clamping with claws, setting a through hole to pass a pin through for locking, magnetic locking, etc., as long as it can be achieved to lock the material receiving barrel assembly 30 together.

[0030] like Figure 2 As shown, the material receiving barrel assembly 30 of this embodiment includes a material receiving barrel 31 and a bag clamping assembly 32 for cooperating with a material bag. The material bag is sleeved on the outer side of the material receiving barrel 31 at the upper bag position. When the weighing assembly 50 rises, it lifts the bottom of the material receiving barrel 31 to drive the material receiving barrel 31, the material bag and the material therein to rise. The bag clamping assembly 32 is located on the outer side of the material receiving barrel 31. The bag clamping assembly 32 can be in the form of a clamping claw, so as to achieve the effect of clamping the material bag on the material receiving barrel 31 through cooperation with the outer side of the material receiving barrel 31. It should be noted that, since a material bag is arranged on the outer side of the material receiving barrel 31 during actual packaging, the bottom of the so-called material receiving barrel 31 lifted by the weighing assembly 50 when it rises can be the material bag exposed at the bottom of the material receiving barrel 31, or the bottom of the material receiving barrel 31 itself.

[0031] In this embodiment, the material receiving cylinder assembly 30 further includes a positioning frame 33. The positioning frame 33 is connected to the material receiving cylinder 31 and is lifted and lowered synchronously with the material receiving cylinder 31. The positioning frame 33 has two main functions. On the one hand, it serves as a frame for installing the material receiving cylinder 31 to support the material receiving cylinder 31. On the other hand, it can cooperate with the subsequent weighing assembly 50 to achieve positioning. Correspondingly, the weighing assembly 50 includes a jacking frame 51 and a lifting driving member 52. The lifting driving member 52 is drivingly connected to the jacking frame 51. The lifting driving member 52 can adopt components such as a motor and a cylinder. The jacking frame 51 serves as the basic frame of the weighing assembly 50 and is similar to the aforementioned positioning frame 33. The jacking frame 51 plays a role in installing components on the one hand and cooperates with the positioning frame 33 to achieve positioning on the other hand. Specifically, the top end of the jacking frame 51 and the bottom end of the positioning frame 33 have mutually cooperating positioning structures 511. The positioning structures 511 can adopt structures such as positioning blocks and positioning holes. The two parts of the positioning structures 511 cooperate with each other. When the weighing assembly 50 rises, the positioning structure 511 on the jacking frame 51 cooperates with the positioning structure 511 at the bottom end of the positioning frame 33, thereby positioning the relative position between the weighing assembly 50 and the material receiving cylinder assembly 30 and ensuring the accuracy of the cooperation between the weighing assembly 50 and the material receiving cylinder assembly 30.

[0032] In this embodiment, the weighing assembly 50 further includes a weighing member 53, a flexible member 54, and a lifting guiding mechanism 55. The weighing member 53 is connected to the jacking frame 51 and is located directly below the material receiving cylinder 31. The flexible member 54 is located on the upper surface of the weighing member 53 and supports the bottom of the material receiving cylinder 31. The bottom of the material receiving cylinder 31 here can be the bottom of the material receiving cylinder 31 itself or the material bag at the bottom of the material receiving cylinder 31. Due to the setting of the flexible member 54, the probability of the sharp corners of larger-sized materials piercing the material bag can be reduced to the greatest extent, meeting the customer's demand for packaging larger-sized materials by this equipment, and at the same time not affecting the weighing result. The flexible member 54 can adopt a flexible pad, an inflatable pad, a grid structure, etc., as long as it can play a role in buffering and vibration reduction. The lifting guiding mechanism 55 is located between the jacking frame 51 and the machine frame 10. The lifting guiding mechanism 55 can adopt the setting method of guiding columns and guiding holes, thereby guiding the direction of the up and down movement of the jacking frame 51 and enabling the entire weighing assembly 50 to only move up and down.

[0033] The weighing member 53 in this embodiment adopts a weighing sensor. The weighing sensor can achieve an accuracy of ±5g or more. Cooperating with the materials classified by specifications can greatly improve the weighing accuracy of this device, making it possible to achieve fully automated precise batching of bulk materials and basically replacing the manual work in high labor intensity and high dust environments. Since the weighing member 53 is fixedly installed, the reliability and service life of the weighing assembly 50 are greatly improved, the qualification rate of the packaged materials is greatly improved, and the equipment maintenance cost is reduced. Of course, the weighing member 53 can also adopt other types of components, such as the method of hoisting and weighing.

[0034] The lifting frame 51 of this embodiment has a U-shaped structure. Both the weighing member 53 and the flexible member 54 are located at the bottom of the U-shaped structure. The weighing member 53 can be at the inner bottom or the outer bottom of the U-shaped structure, and at least a part of the material receiving cylinder 31 is located inside the U-shaped structure, so that the weighing member 53, the flexible member 54 and the material receiving cylinder 31 cooperate with each other. The positioning structure 511 on the lifting frame 51 is located at the top of the U-shaped structure, that is, at the top of the two upwardly extending segments of the U-shaped structure, and this segment is also directly below the positioning frame 33, so as to ensure the accuracy of the cooperation between the two positioning structures 511. Of course, the specific structural form of the lifting frame 51 is not limited to the above manner of this embodiment, and the specific structural form of the positioning frame 33 can also be set accordingly as needed.

[0035] The material receiving cylinder 31 of this embodiment is not a cylindrical structure with an open top, but still adopts a cylindrical structure, but there is a notch 311 provided on the side surface at the top of the cylindrical structure. This notch 311 is far from the central axis of the turntable assembly 20. In this way, the setting of the notch 311 enables the material receiving cylinder 31 to cooperate with the feeding member 40 through this notch 311, that is, the feeding member 40 is located at the notch 311 and extends into the material receiving cylinder 31. The reason for adopting this setting method is that in this embodiment, there are components such as the locking assembly 60 and the cylinder positioning member 34 provided at the top of the material receiving cylinder 31. Therefore, the feeding member 40 is arranged on the side of the material receiving cylinder 31, and thus the notch 311 is provided on the side of the material receiving cylinder 31 to achieve the effect of adding material into the material receiving cylinder 31. Of course, the material receiving cylinder 31 can also adopt a conventional structure with an open top. At this time, the locking assembly 60, the cylinder positioning member 34, etc. need to be adjusted accordingly to ensure that they do not affect the feeding member 40 from adding materials into the material receiving cylinder 31.

[0036] It should be noted that, as shown in the longitudinal section of the notch 311 of this embodiment, that is, Figure 2 as shown, the notch 311 is divided into three parts: an upper side wall, a lower side wall and a longitudinal side wall. The upper side wall and the lower side wall are respectively located above and below the longitudinal side wall. They can be arc-shaped or horizontal, and the longitudinal side wall extends longitudinally. The notch 311 has a certain size when unfolded along the circumferential direction of the material receiving cylinder 31, so that the feeding member 40 can extend in. Of course, the shape of the notch 311 can also be adjusted accordingly. At the same time, the material receiving cylinder 31 can be a cylindrical barrel or a square barrel.

[0037] Based on the above setting method of the material receiving cylinder 31 in this embodiment, this embodiment optimizes the distance relationship between the material receiving cylinder 31 and the feeding member 40, between the positioning frame 33 and the lifting frame 51, and the stroke of the lifting drive member 52, so as to ensure the stable and reliable operation of each component and avoid interference.

[0038] Specifically, the distance between the longitudinal side surface of the feeding member 40 and the longitudinal side surface of the notch 311 along the radial direction of the turntable assembly 20 is a first distance, that is, Figure 2 A portion of the feeding member 40 extends into the receiving barrel 31, the distance between the bottom end of the portion and the lower side wall of the notch 311 is the second distance, ie Figure 2 The distance B in the figure is the third distance between the bottom end of the positioning frame 33 and the top end of the lifting frame 51 when the weighing assembly 50 is in the avoidance state, that is, Figure 2 The distance C in the weighing assembly 50 is the distance between the bottom end of the receiving barrel 31 and the weighing assembly 50 located directly below the receiving barrel 31, that is, the distance between the bottom end of the receiving barrel 31 and the upper surface of the flexible member 54 is the fourth distance, that is, Figure 2 The distance D in the above four distances. For the above four distances, the first distance is set in this embodiment so that the receiving barrel 31 avoids the feeding member 40 when rotating, the second distance is greater than the stroke of the lifting drive member 52 minus the third distance, the fourth distance is greater than the third distance, and the stroke of the lifting drive member 52 is greater than the third distance. In this way, the lifting of the weighing assembly 50 can not only smoothly lift the receiving barrel assembly 30, but also prevent the rising of the receiving barrel assembly 30 from interfering with the feeding member 40 and other components, and the receiving barrel 31 will not interfere with the feeding member 40 when rotating driven by the turntable assembly 20. At the same time, the size of the feeding opening of the feeding member 40 is less than or equal to the opening at the lower side wall of the notch 311 of the receiving barrel 31, so as to ensure that all the materials can enter the receiving barrel 31 and avoid leakage. The specific values ​​of the above distances can be set accordingly as needed, as long as they can meet the requirements or achieve the corresponding effects.

[0039] In this embodiment, the receiving barrel assembly 30 also includes a barrel positioning member 34, which is located at the top of the receiving barrel 31. The turntable assembly 20 includes a turntable 21 and a barrel rack 22, and the barrel rack 22 is located at the peripheral edge of the turntable 21. When the receiving barrel 31 descends, the barrel positioning member 34 and the barrel rack 22 are centered. The cooperation between the barrel positioning member 34 and the barrel rack 22 can adopt various structural forms that can achieve self-centering. For example, the barrel rack 22 can adopt a conical sleeve, and the barrel positioning member 34 can adopt a conical block. The small end of both cones is facing downward. In this way, when the barrel positioning member 34 and the receiving barrel 31 descend together, they can be automatically centered under the action of the cone. Due to the setting of the barrel rack 22, the locking assembly 60 is actually set on the barrel rack 22 in this embodiment, so that no additional fixing components are required. Of course, the locking assembly 60 can also be installed on the turntable 21 alone.

[0040] The turntable 21 in this embodiment can adopt structural forms such as a disc or a polygonal disc structure. The turntable 21 is horizontally arranged as a whole, and its rotation axis is vertically arranged. The frame 10 is located below the turntable 21 to support the turntable 21. A turntable drive member 70 can be provided at the center of the turntable 21. The turntable drive member 70 is used to drive the turntable 21 to rotate, so as to achieve the effect of driving the material receiving cylinder assembly 30 to switch positions between each working station. At the same time, the number and circumferential arrangement mode of the upper bag position, the feeding position and the discharging position in this embodiment can be set correspondingly according to needs. Preferably, only one upper bag position and one discharging position are provided, and multiple feeding positions can be provided. Correspondingly, multiple material receiving cylinder assemblies 30 can also be provided, and preferably the number is equal to the total number of working stations. The upper bag position, each feeding position and the discharging position are arranged in sequence along the circumference of the turntable 21, so that each time the turntable 21 only needs to rotate in the same direction, the material receiving cylinder assemblies 30 can pass through the upper bag position, the feeding position and the discharging position in sequence, ensuring the continuity of work and improving the packaging efficiency.

[0041] The material metering and packaging device in this embodiment further includes components such as a dust removal component, a detection component 80, and an electrical control component 90. The detection component 80 can detect the lifting position of components such as the material receiving cylinder assembly 30 to determine the working state. The dust removal component can collect dust during feeding. The electrical control component 90 can control the actions of each driving component to achieve coordinated actions.

[0042] The use process steps of the material metering and packaging device in this embodiment are as follows, taking two feeding positions as an example:

[0043] 1. In the initial state, the 1# empty material bag passes through the automatic bag feeder and is automatically sleeved on the material receiving cylinder assembly 30 at the upper bag position. The electrical control component 90 of the device controls the two groups of bag clamping components 32 on the material receiving cylinder 31 to automatically clamp the material bag on the material receiving cylinder 31.

[0044] 2. After the operation process of the current work station is completed, the electric control component 90 controls the turntable driving component 70 to drive the turntable 21 to rotate by a fixed angle, and the 2# empty material bag enters the bag loading position to repeat the bag loading process; while the 1# empty material bag enters the first feeding position to execute the feeding and metering process: the locking component 60 releases the material receiving cylinder component 30, the lifting driving component 52 drives the lifting frame 51 to rise, the lifting frame 51 docks with the positioning frame 33 and drives the material receiving cylinder 31 to rise together. At the same time, the material receiving cylinder component 30 is completely separated from the turntable component 20, and the tare weight is recorded and then the tare weight is removed. The feeding component 40 above starts to feed, and stops metering after reaching the set weighing range and error. The lifting driving component 52 drives the material receiving cylinder component 30 to descend, realizing the complete separation of the weighing component 50 and the material receiving cylinder component 30. At the same time, the material receiving cylinder component 30 and the turntable component 20 are automatically docked by gravity under the action of the cylinder positioning part 34, and the locking component 60 locks the material receiving cylinder component 30 and the turntable component 20 together again. The dust removal component participates in the collection of the falling dust during the feeding process.

[0045] 3. After the operation processes of all the current work stations are completed, the turntable driving component 70 drives the turntable 21 to rotate by a fixed angle, the 3# empty material bag enters the bag loading position to repeat the bag loading process, the 2# empty material bag enters the first feeding position to execute the feeding and metering process, and the 1# material bag enters the second feeding position to execute the feeding and metering process.

[0046] 4. After the operation processes of all the current work stations are completed, the turntable driving component 70 drives the turntable 21 to rotate by a fixed angle, the 4# empty material bag enters the bag loading position to repeat the bag loading process, the 3# empty material bag enters the first feeding position, and the 2# material bag enters the second feeding position; the 1# material bag enters the bag unloading position to execute the bag unloading process: the receiving box below rises so that the bottom of the material basket docks with the bottom of the material receiving cylinder component 30, controls the two groups of bag clamping components 32 on the material receiving cylinder 31 to loosen the material bag, the receiving box below descends, the material bag is separated from the material receiving cylinder component 30 and enters the receiving box, and the material bag leaves the device with the receiving box.

[0047] 5. After the operation processes of all the current work stations are completed, the turntable driving component 70 drives the turntable 21 to rotate by a fixed angle, the 5# empty material bag enters the bag loading position to repeat the bag loading process, the 4# empty material bag enters the first feeding position, and the 3# material bag enters the second feeding position; the 2# material bag enters the bag unloading position to execute the bag unloading process, and so on in a cycle.

[0048] It should be noted that the multiple in the above embodiments refers to at least two.

[0049] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0050] 1. Solved the problem of large weighing error in the material metering and packaging device in the prior art;

[0051] 2. It avoids the situation of long stabilization time and large errors of the weighing component, realizes the accurate metering of bulk materials, and greatly improves the accuracy of material metering.

[0052] 3. It realizes the parallelism of bag loading, metering and packaging at multiple stations, and multiple stations can efficiently meter different materials or materials of different specifications in segments according to the target weight.

[0053] 4. The materials are directly conveyed into the feed bags, thus reducing the number of material dropping times and the dropping height during metering and loading. The materials conveyed by the upstream feeder directly fall into the feed bags, minimizing the generation of broken materials and dust impurities to the greatest extent and reducing the impact of the production process on product quality.

[0054] 5. It greatly improves the reliability and service life of the weighing component, significantly improves the qualification rate of packaging materials, and reduces the equipment maintenance cost.

[0055] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A material metering and packaging device, characterized in that, Comprising: A frame (10); A turntable assembly (20), the turntable assembly (20) is rotatably connected to the frame (10), and upper bag positions, a feeding position, and a discharging position are arranged on the circumferential side of the turntable assembly (20); A material receiving cylinder assembly (30), the material receiving cylinder assembly (30) is located on the circumferential side of the turntable assembly (20), and can switch positions between the upper bag position, the feeding position, and the discharging position under the drive of the turntable assembly (20). The material receiving cylinder assembly (30) is arranged to be liftable relative to the turntable assembly (20), and can be driven to dock or drive to separate from the turntable assembly (20); A feeding member (40), the feeding member (40) is located at the feeding position, and the feeding member (40) can dock with the material receiving cylinder assembly (30) located at the feeding position and feed the material receiving cylinder assembly (30); A weighing assembly (50), the weighing assembly (50) is arranged below the material receiving cylinder assembly (30) located at the feeding position, the weighing assembly (50) is arranged to be liftable, and has a weighing state and an avoidance state. When the weighing assembly (50) is in the weighing state, the weighing assembly (50) rises and lifts to drive the material receiving cylinder assembly (30) to rise together, and the material receiving cylinder assembly (30) is driven to separate from the turntable assembly (20). When the weighing assembly (50) is in the avoidance state, the weighing assembly (50) descends and avoids the rotation of the material receiving cylinder assembly (30); The material metering and packaging device further includes a locking assembly (60), the locking assembly (60) is connected to the turntable assembly (20), and can lock or release the material receiving cylinder assembly (30), so that the material receiving cylinder assembly (30) and the turntable assembly (20) move synchronously or the material receiving cylinder assembly (30) can move liftably relative to the turntable assembly (20).

2. The material metering and packaging device according to claim 1, wherein The material receiving cylinder assembly (30) includes: A material receiving cylinder (31) for cooperating with a material bag, when the weighing assembly (50) rises, it lifts the bottom of the material receiving cylinder (31) to drive the material receiving cylinder (31) to rise; A bag clamping assembly (32), the bag clamping assembly (32) is located outside the material receiving cylinder (31), and clamps the material bag on the material receiving cylinder (31).

3. The material metering and packaging device according to claim 2, wherein, The material receiving cylinder assembly (30) further includes a positioning frame (33), the positioning frame (33) is connected to the material receiving cylinder (31) and lifts and lowers synchronously with the material receiving cylinder (31). The weighing assembly (50) includes a jacking frame (51) and a lifting driving member (52), the lifting driving member (52) is drivingly connected to the jacking frame (51), and the top end of the jacking frame (51) and the bottom end of the positioning frame (33) have mutually cooperating positioning structures (511). When the weighing assembly (50) rises, the positioning structure (511) on the jacking frame (51) cooperates with the positioning structure (511) at the bottom end of the positioning frame (33) to position the relative position between the weighing assembly (50) and the material receiving cylinder assembly (30).

4. The material metering and packaging device according to claim 3, characterized in that, The weighing assembly (50) further comprises: A weighing piece (53), the weighing piece (53) being connected to the lifting frame (51) and being located directly below the material receiving barrel (31); A flexible member (54), the flexible member (54) being located on the upper surface of the weighing member (53) and supporting the bottom of the material receiving barrel (31); A lifting guide mechanism (55), wherein the lifting guide mechanism (55) is located between the lifting frame (51) and the frame (10), and guides the direction of the lifting frame (51) moving up and down.

5. The material metering and packaging device according to claim 4, characterized in that, The lifting frame (51) has a U-shaped structure, the weighing member (53) and the flexible member (54) are both located at the bottom of the U-shaped structure, at least a portion of the material receiving barrel (31) is located within the U-shaped structure, and the positioning structure (511) on the lifting frame (51) is located at the top of the U-shaped structure.

6. The material metering and packaging device according to claim 3, characterized in that, The top side surface of the material receiving barrel (31) has a notch (311), the feeding member (40) is located at the notch (311) to extend into the material receiving barrel (31), the distance between the bottom end of the part of the feeding member (40) extending into the material receiving barrel (31) and the lower side wall of the notch (311) is a second distance, and when the weighing assembly (50) is in the avoidance state, the distance between the bottom end of the positioning frame (33) and the top end of the lifting frame (51) is a third distance, and the second distance is greater than the stroke of the lifting drive member (52) minus the third distance.

7. The material metering and packaging device according to claim 3, characterized in that, When the weighing assembly (50) is in the avoidance state, the distance between the bottom end of the positioning frame (33) and the top end of the lifting frame (51) is a third distance. When the weighing assembly (50) is in the avoidance state, the distance between the bottom end of the material receiving barrel (31) and a component of the weighing assembly (50) located directly below the material receiving barrel (31) is a fourth distance. The fourth distance is greater than the third distance.

8. The material metering and packaging device according to claim 3, characterized in that When the weighing assembly (50) is in the avoidance state, the distance between the bottom end of the positioning frame (33) and the top end of the lifting frame (51) is a third distance, and the stroke of the lifting drive member (52) is greater than the third distance.

9. The material metering and packaging device according to claim 2, characterized in that, The material receiving barrel assembly (30) further comprises a barrel positioning member (34), wherein the barrel positioning member (34) is located at the top end of the material receiving barrel (31); the turntable assembly (20) comprises a turntable (21) and a barrel rack (22), wherein the barrel rack (22) is located at the peripheral edge of the turntable (21); when the material receiving barrel (31) descends, the barrel positioning member (34) and the barrel rack (22) are centrally matched.

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