Material collecting device, material collecting method, and multi-head weighing and packaging system

Abstract

To provide a material collecting device, a material collecting method and a multi-head weighing and packaging system, which can prevent a material from adhering to an inner wall of the material collecting device and can ensure that all the weighed material enters the packaging bag, that is, the weight of the material in the packaging bag is consistent with the measured weight of a measuring device.SOLUTION: A material collecting device includes: a receiving groove that is used for receiving a material and has at least one opening through which the material falls; a scraping mechanism that has a first moving mechanism and a scraping blade disposed in the receiving groove, and drives the scraping blade such that the first moving mechanism moves in the receiving groove; a conveying groove that is obliquely disposed below the receiving groove, an upper end of which communicates with the opening and a lower end of which is formed as a discharge port; and a pushing mechanism that has a second moving mechanism and a pushing plate, the second moving mechanism driving the pushing plate to move in a length direction of the conveying groove.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to the technical field of metering packaging, and specifically to a material collection device, a material collection method, and a multi-head metering packaging system.

Background Art

[0002] With the development and progress of society, the factory production in each field has gradually realized automation, the production speed of the production line has become faster and faster, and the response speed of each device has also become higher and higher. Under such a background, higher requirements are also put forward for the response speed of each device in one production line. Currently, usually, a metering device is adopted to measure product materials with approximately equal total weights, and then the measured materials are collected into packaging bags by using a material collection device.

[0003] In order to ensure that the weight of the product materials in each packaging bag meets the requirements, it is necessary for the metering device to accurately measure the weight of the materials, and for the material collection device to timely and accurately collect the products after weight measurement and convey them to the packaging bags. However, currently, the material collection device that cooperates with the metering device is generally a plurality of independent chutes with a certain angle provided corresponding to the lower part of the dropping port of the metering device, which relies on the weight of the product materials itself to slide them down. However, when the product materials have a certain viscosity, some materials adhere to the chutes and cannot slide down or the sliding speed is slow, and the materials during packaging cannot timely gather into the current packaging bag, thereby causing the weight of the materials in the current packaging bag and the subsequent packaging bags not to meet the requirements.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the above problems, the present invention provides a material collection device, a material collection method, and a multi-head metering packaging system that can solve the problems in the prior art.

Means for Solving the Problems

[0005] According to a first aspect of the present invention, there is provided a material collection device, the material collection device comprising: a receiving groove used for receiving materials and having at least one opening through which the materials fall; a first moving mechanism; and a scraping blade provided in the receiving groove, and a scraping mechanism for driving the scraping blade so that the first moving mechanism moves in the receiving groove; a conveying groove which is inclined and provided below the receiving groove, the upper end of which communicates with the opening and the lower end of which is formed as a discharge port; a second moving mechanism; and a pressing mechanism having a pressing plate, the pressing plate being provided on a side away from the discharge port of the conveying groove, and the second moving mechanism being a pressing mechanism for driving the pressing plate to move along the length direction of the conveying groove in the conveying groove.

[0006] According to the technical solution of the present invention, the measured material falls into the receiving groove, the first moving mechanism of the scraping mechanism drives the scraping blade to move in the receiving groove, scrapes and collects all the materials in the receiving groove, and the collected materials fall from the opening into the conveying groove. The second moving mechanism drives the pressing plate to move along the length direction of the conveying groove in the conveying groove, and presses the materials in the conveying groove so that they quickly slide down to the discharge port in the inclined conveying groove.

[0007] The material collection device can avoid the material adhering to the inner wall of the receiving groove or the conveying groove, and can also maintain that all the materials are not concentrated and dispersed during the whole process of collection, thereby ensuring that all the materials of the measured specified weight enter the packaging bag, that is, ensuring that the weight of the materials in the packaging bag is consistent with the measured weight of the weighing device. In addition, by driving the first moving mechanism and the second moving mechanism, the time for conveying the materials in the receiving groove and the conveying groove can be controlled, and thereby, based on the conveying time of the first moving mechanism and the second moving mechanism, the conveying of the packaging bag can be adjusted, avoiding the situation that the materials cannot be timely discharged from the discharge port into one packaging bag due to different falling speeds of the materials, and improving the packaging efficiency of the materials.

[0008] In a preferred technical solution of the present invention, the receiving groove is formed as an annular groove formed by connecting one or more arc-shaped grooves, and an opening is formed at the connecting position of the arc-shaped grooves.

[0009] According to the preferred technical solution, by using one or more arcs as the receiving groove, the receiving groove can receive the materials discharged from a plurality of dropping ports in the annular region, and due to the movement of the scraping blade, the materials discharged from the plurality of dropping ports can be collected at the opening, and by scraping and preliminarily collecting the materials dropped in the receiving groove, the problem of dispersion of the materials at the plurality of dropping ports can be solved.

[0010] As a preferred technical solution of the present invention, the first moving mechanism includes a rotating shaft provided at the axial center position of the annular groove, and a link with one end fixed to the side surface of the rotating shaft and the other end extending upward along the radial direction of the annular groove to the upper part of the annular groove, and the scraping blade includes a link provided at the end away from the rotating shaft of the link and entering the annular groove.

[0011] According to the preferred technical solution, by using the rotating shaft and the link as the first moving mechanism, the rotating shaft can drive the scraping blade at the other end of the link to circulate and rotate the materials in the annular groove for scraping, so that the process of scraping the materials and collecting them at the opening within one rotation period or within one minute of one rotation period can be continuously and stably completed.

[0012] As a preferred technical solution of the present invention, according to the dimensions and characteristics of the materials, the scraping blade can adopt a flat plate type or a comb tooth type with concavities and convexities at the lower end, and the lower edge of the comb teeth is provided in contact with the receiving groove.

[0013] According to the preferred technical solution, by providing the lower edge of the comb teeth in contact with the receiving groove, the scraping and conveying effect on the materials can be improved. Also, due to the installation of the comb teeth, the lower edge of the scraping blade can be made to be in incomplete close contact with the receiving groove, reducing the large frictional resistance during the movement of the scraping blade and the damage caused by scraping to the inner wall of the bottom of the receiving groove.

[0014] As a preferred technical solution of the present invention, the material collection device according to the present invention further includes a base fitted outside the conveying groove and a bottom plate formed to extend outward from the bottom surface of the receiving groove and fixedly connected to the base.

[0015] According to this preferred technical solution, by fitting and providing the base outside the conveying groove, the position of the conveying groove, particularly the position of the discharge port at the lower end of the conveying groove, can be restricted to a certain extent, which is advantageous for aligning the packaging bag and the discharge port during packaging.

[0016] Also, by fixedly connecting the annular groove to the base through the bottom plate, the position of the receiving groove is fixed so as not to change constantly, and the material discharged from the dropping port can be stably received. Further, the annular groove may be provided so as not to contact the dropping port, thereby avoiding the material from adhering to the connection portion during the process of dropping from the dropping port.

[0017] As a preferred technical solution of the present invention, the second moving mechanism is formed as a moving rail along the length direction of the conveying groove. A moving groove along the length direction of the conveying groove is opened on the side wall of the conveying groove, and one side of the push plate is connected to the moving rail through the moving groove.

[0018] According to this preferred technical solution, the moving groove drives the push plate to reciprocate along the length direction of the conveying groove between the opening and the discharge port in the moving rail along the length direction of the conveying groove, so that the material in the conveying groove can be pushed into the discharge port multiple times.

[0019] As a preferred technical solution of the present invention, the receiving groove has a plurality of openings, and the conveying groove includes a plurality of inclined chutes provided corresponding to the openings. The lower ends of the plurality of inclined chutes form a vertical discharge port jointly surrounded by the lower ends of the plurality of inclined chutes.

[0020] According to the preferred technical solution, by installing a plurality of openings, the moving distance required each time the first moving mechanism scrapes is reduced, and it is not necessary to complete the collection of materials in the receiving groove. After collecting a part of the materials in the receiving groove 1 in advance, the pushing plate is driven to push the materials in the plurality of conveying grooves and synchronously convey them to the discharge port, and the collection of all the materials can be completed at the discharge port. The scraping blade and the pushing plate can reduce the load of collectively conveying the materials and ensure the smoothness of the material scraping and conveying process.

[0021] According to the second aspect of the present invention, a multi-head metering and packaging system is provided. This multi-head metering and packaging system includes the material collection device in any one of the above technical solutions. In particular, it further includes a multi-head metering device having a plurality of metering chutes provided in a ring shape. The plurality of metering chutes and the rotating shaft of the scraping mechanism are coaxially provided, and the rotating shaft is rotatably connected to the bottom of the multi-head metering device. In a plan view, the lower ends of the plurality of metering chutes are provided so as to overlap with the annular groove and are formed as a plurality of dropping ports.

[0022] According to the technical solution of the present invention, the multi-head metering and packaging system can respectively measure the materials by the multi-head metering device. The materials that meet the weight can fall from the plurality of dropping ports (simple openings at the bottom of the metering chute or additional auxiliary dropping mechanisms at the bottom of the metering chute) at the bottom of the plurality of metering chutes into the annular groove of the material collection device, thereby further improving the working efficiency of metering and packaging.

[0023] As a preferred technical solution of the present invention, the multi-head metering and packaging system according to the present invention further includes a support rod, one end of which is fixed to the bottom of the multi-head metering device, the other end of which is fixed to the upper surface of the base of the material collection device, and the middle part of which is fixed to the bottom plate of the material collection device.

[0024] According to the preferred technical solution, by fixedly connecting the base, the receiving groove, and the multi-head metering device via a support rod, it is possible to easily fix the multi-head metering device and the receiving groove so that they do not come into contact with each other vertically, avoid interfering with the movement of the first moving mechanism within the receiving groove, and ensure that the material can accurately fall from the dropping port of the multi-head metering device into the receiving groove under the action of gravity or the auxiliary dropping mechanism.

[0025] According to the third aspect of the present invention, there is further provided a material collection method applied to the material collection device in any one of the above technical solutions. The material collection method includes a receiving step of receiving the material discharged from the dropping port within the receiving groove, a scraping step of scraping the material within the receiving groove and pushing the material into the conveying groove after the receiving step, a conveying step of receiving the material conveyed in the scraping step and conveying the material to the discharge port within the inclined conveying groove, and a pushing step of pushing the material within the conveying groove to the discharge port in the conveying step.

[0026] As a preferred technical solution of the present invention, a plurality of openings are provided in the receiving groove, and the plurality of openings are uniformly distributed. The first moving mechanism includes a rotating shaft and a plurality of links uniformly provided along the circumferential direction of the rotating shaft. A scraping blade is provided at the end of the link away from the rotating shaft. The number of links and the number of openings are both equal to n. In the scraping step, the rotating shaft drives the links to rotate by 2π / n degrees each time.

[0027] According to the preferred technical solution, a plurality of openings are provided in the receiving groove, and the first moving mechanism has a plurality of links. Thereby, in each scraping step, the rotating shaft can scrape and convey all the material within the receiving groove without rotating a full circle. In particular, when the number of openings and links is n and they are uniformly distributed, if the rotating shaft rotates by 2π / n degrees each time, all the material within the receiving groove can be scraped and conveyed, and the working efficiency is higher.

[0028] As a preferred technical solution of the present invention, the material collection method is repeatedly executed, and the conveyance step in a certain cycle and the receiving step in the next cycle are performed simultaneously.

[0029] According to the preferred technical solution, by means of the scraping step and the pushing step, the time for the material to stop in the receiving groove and the conveyance groove can be controlled, and it can be ensured that all the materials in the receiving groove have entered the conveyance groove before the next receiving step. Thereby, it realizes performing the conveyance step in the previous cycle and the receiving step in the current cycle simultaneously, ensures that the weight of the materials in the packaging bag is consistent, and effectively improves the working efficiency of material packaging.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

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Figure 10

Embodiments for Carrying Out the Invention

[0031] First, it should be noted that in the following, the configurations, operating principles, features, and advantages of the material collection device, material collection method, and multi-head metering and packaging system according to the present invention will be exemplarily described. However, it should be understood that all the descriptions are provided for the purpose of illustration and thus should not be construed as forming any limitation on the present invention.

[0032] In addition, the present invention enables any combination or deletion among these technical features (or their equivalents) for any single technical feature described or implicitly described in the embodiments described in this specification, or any single technical feature explicitly or implicitly shown in each drawing, thereby obtaining other embodiments of the present invention that may not be directly mentioned in this specification.

[0033] It should be noted that in the description of this embodiment, terms indicating positional relationships such as "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is not to indicate or imply that the device or component must have a specific orientation, be configured, and operated in a specific orientation, but is for those skilled in the art to more vividly understand the present invention and thus cannot be understood as a limitation on the invention.

[0034] First Embodiment The first embodiment of the present invention provides a material collection device. FIG. 1 is a plan view of the overall structure of the material collection device. As shown in FIG. 1, the material collection device 100 includes a receiving groove 1 and a conveying groove 2 connected vertically, a scraping mechanism 3 for scraping the material in the receiving groove 1, and a pushing mechanism 4 for pushing the material in the conveying groove 2.

[0035] Specifically, the receiving groove 1 is used to receive the material (not shown in FIG. 1), and at least one opening 11 for the material to fall is provided. The scraping mechanism 3 has a first moving mechanism 32 and a scraping blade 31 provided in the receiving groove 1. The first moving mechanism 32 drives the scraping blade 31 to move in the receiving groove 1. Therefore, when the material measured by the measuring device falls into the receiving groove 1, the first moving mechanism 32 of the scraping mechanism 3 drives the scraping blade 31 to move in the receiving groove 1, so as to scrape and collect all the materials in the receiving groove 1, including the materials that may adhere to the inner wall of the receiving groove 1, and convey the collected materials to the opening 11 by the scraping blade 31. The inner wall here refers to the side wall and the bottom wall of the receiving groove 1, which are collectively referred to as the inner wall.

[0036] The conveying groove 2 is provided obliquely below the receiving groove 1. The upper end of the conveying groove 2 is communicated with the opening 11, and the lower end is formed as a discharge port 21. The pushing mechanism 4 has a second moving mechanism 42 and a pushing plate 41. The pushing plate 41 is provided on the side away from the discharge port 21 in the opening 11. The second moving mechanism 42 drives the pushing plate 41 to move along the length direction of the conveying groove 2 between the opening 11 and the discharge port 21. The upper end of the conveying groove 2 receives the material that has fallen from the opening 11. The second moving mechanism 42 pushes the material in the conveying groove 2 and drives the pushing plate 41 to quickly slide down to the discharge port 21 in the inclined conveying groove 2 for collection and outflow from the discharge port 21. A packaging bag for receiving the outflowing material may be provided at the discharge port 21, whereby accurate and rapid packaging of the material with a specified weight can be achieved.

[0037] In this embodiment, the material collection device 100 can avoid the material from adhering to the inner wall of the receiving groove 1 or the conveying groove 2, and can also maintain all the materials from concentrating and dispersing during the entire collection process, so that all the materials of the specified weight measured can enter the packaging bag, that is, it can be ensured that the material weight in the packaging bag is consistent with the measured weight of the weighing device. Further, by driving the first moving mechanism 32 and the second moving mechanism 42, the time for conveying the material in the receiving groove 1 and the conveying groove 2 can be controlled, and thereby, based on the conveying time of the first moving mechanism 32 and the second moving mechanism 42, the conveying of the packaging bag can be adjusted, avoiding the situation that the material cannot be discharged from the discharge port 21 to one packaging bag in a timely manner due to different falling speeds of the materials, and improving the packaging operation efficiency of the materials.

[0038] Figure 2 is a schematic structural diagram of a more suitable material collection device according to this embodiment. Hereinafter, the structure of the material collection device 100 according to this embodiment will be described more specifically with reference to Figure 2.

[0039] [Receiving groove] The receiving groove 1 is above the conveying groove 2 and is used to receive the material 300 discharged from the weighing device. Depending on the type of the weighing device, the position and direction of discharging the material 300 are different, and it may be provided according to the position and direction where the material 300 falls. For example, in some embodiments, corresponding to a single-head weighing device, when the falling port (not shown in FIGS. 1 and 2) is provided vertically, the receiving groove 1 may be formed as a concave groove structure provided directly below the falling port. In another embodiment, corresponding to a single-head weighing device, when the falling port is provided obliquely, the receiving groove 1 may be provided at a position below the falling port and slightly extending in the inclined direction of the falling port. Further, in some more preferred embodiments, corresponding to a multi-head weighing device (not shown in FIGS. 1 and 2), when there are a plurality of falling ports, the receiving groove 1 may be formed as one or more strip grooves or annular grooves connected to the positions corresponding to the plurality of falling ports.

[0040] The receiving groove 1 is further provided with an opening 11 for the material 300 to fall. The opening 11 may be opened between a plurality of receiving grooves 1 or at the end of the receiving groove 1. The diameter of the opening 11 must be larger than the maximum length of the material 300. After entering the opening 11, the material 300 falls naturally or by the action of an auxiliary falling mechanism (not shown in FIGS. 1 and 2). The receiving groove 1 may be provided horizontally or may be provided inclined with the position of the opening 11 as the low point to guide the material 300 to slide to the opening 11.

[0041] For example, corresponding to a multi-head metering device, the receiving groove 1 may be formed as an annular groove 10 formed by connecting one or more arc-shaped grooves 12. Openings 11 are respectively formed at the connected positions between the arc-shaped grooves 12. One arc-shaped groove means that the receiving groove 1 may be formed as a continuous annular groove 10 having one notch, and the notch is formed as the opening 11. Thereby, the receiving groove 1 can receive the material 300 discharged from a plurality of dropping ports in the annular region and collect the material 300 discharged from the plurality of dropping ports into the opening 11 by the movement of the scraping blade 31. By scraping and pre-collecting the material 300 that has fallen in the receiving groove 1, the problem that the material 300 at the plurality of dropping ports is dispersed during falling is solved.

[0042] [Scraping mechanism] The scraping mechanism 3 is used to scrape the material 300 adhering to the inner wall of the receiving groove 1, collect the material 300, and convey it. The scraping mechanism 3 includes a scraping blade 31 provided in the receiving groove 1 and a first moving mechanism 32 that drives the scraping blade 31 to move in the receiving groove 1. The first moving mechanism 32 at least drives the scraping blade 31 to move between the position where the material 300 drops and the opening 11. The scraping blade 31 may be provided in close contact with the inner wall of the receiving groove 1 or with a gap therebetween. When the material is small and easily adheres to the inner wall of the receiving groove 1, the scraping blade 31 may be provided in close contact with the receiving groove 1. In this case, the material 300 adhering to the inner wall of the receiving groove 1 can be scraped better. When the material is large and easy to scrape, the scraping blade 31 may be provided with a gap from the receiving groove 1. In this case, the gap between the scraping blade 31 and the receiving groove 1 can be controlled to be smaller than the minimum outer diameter of the material 300, ensuring the scraping effect on the material 300, avoiding the frictional resistance between the scraping blade 31 and the inner wall of the receiving groove 1, and reducing the damage caused by scraping to the inner wall of the receiving groove 1. By the movement of the scraping blade 31, the material 300 adhering to the inner wall of the receiving groove 1 in the conveying path of the material 300 can be scraped synchronously, avoiding the dispersion of the material 300, and the material 300 initially collected in the receiving groove 1 naturally drops after entering the opening 11.

[0043] In some preferred embodiments, corresponding to the annular groove 10 in the above embodiment, the first moving mechanism 32 may have a rotating shaft 321 provided at the axial center position of the annular groove 10 and a link 322 with one end fixed to the side surface of the rotating shaft 321 and the other end extending along the radial direction of the annular groove 10 to above the annular groove 10. The scraping blade 31 is provided at the end away from the rotating shaft 321 of the link 322 so as to enter the annular groove 10.

[0044] As the first moving mechanism 32, a rotating shaft 321 and a link 322 are used. The rotating shaft 321 can be the output shaft of a motor. The link 322, under the rotational drive of the rotating shaft 321, circulates and rotates a scraping blade 31 at the other end of the link 322 within the annular groove 10 for scraping. Thereby, the process of scraping the material 300 and collecting it at the opening 11 can be continuously and stably completed within one rotation period or one fraction of a rotation period. In particular, when a plurality of openings 11 are formed in the receiving groove 1 and the plurality of openings 11 are uniformly distributed, the first moving mechanism 32 includes a rotating shaft 321 and a plurality of links 322 uniformly provided along the circumferential direction of the rotating shaft 321. The number of links 322 and the number of openings 11 are both equal to n. If the link 322 is driven such that the rotating shaft 321 rotates by 2π / n degrees each time, the scraping and conveying of all the material 300 within the receiving groove 1 can be completed.

[0045] In another preferred embodiment, the lower end of the scraping blade 31 may be formed as uneven comb teeth, and the lower edge of the comb teeth is provided in contact with the receiving groove 1. By providing the lower edge of the comb teeth in contact with the receiving groove 1, the scraping and conveying effect on the material 300 can be improved. Also, due to the installation of the comb teeth, the lower edge of the scraping blade 31 can be made to contact the receiving groove 1 in an imperfectly close manner, reducing the large frictional resistance during the movement of the scraping blade 31 and the damage caused by scraping to the inner wall of the bottom of the receiving groove 1.

[0046] [Conveying groove] The conveying groove 2 is provided slantingly below the receiving groove 1. Specifically, the upper end of the conveying groove 2 is provided corresponding to the opening 11 and is used to receive the material 300 that has fallen from the opening 11. A discharge port 21 is formed at the lower end of the conveying groove 2, and the material 300 of a specified weight can flow into a packaging bag through the discharge port 21 and be packaged. Usually, as shown in the examples of FIGS. 1 and 2, the conveying groove 2 may be formed as a linear strip groove. However, as can be understood by those skilled in the art, the conveying groove 2 may be provided in other shapes, for example, a fan-shaped groove that widens from top to bottom, or a curved arc-shaped groove, and can also play a role in guiding the material 300 to enter the drop port, and all belong to the protection scope of the present invention.

[0047] When the receiving groove 1 has a plurality of openings 11, the conveying groove 2 preferably includes a plurality of inclined chutes provided corresponding to the openings 11, and the lower ends of the plurality of inclined chutes form a vertical discharge port 21 jointly surrounded by the lower ends of the plurality of inclined chutes. By installing the plurality of openings 11, the required moving distance each time the first moving mechanism 32 scrapes is shortened, and it is not necessary to complete the collection of the material 300 in the receiving groove 1. After collecting a part of the material 300 in the receiving groove 1 in advance, the push plate 41 is driven to synchronously push the material 300 in the plurality of conveying grooves 2 and convey it to the discharge port 21, and the collection of all the material 300 can be completed at the discharge port 21. The scraping blade 31 and the push plate 41 can reduce the load of transporting the material 300 together and ensure the smoothness of the process of scraping and transporting the material 300.

[0048] [Pushing mechanism] The pushing mechanism 4 is used to push the material 300 that has fallen into the conveying groove 2 into the discharge port 21 for discharge, which can avoid the difference in the discharge time of the material 300 from the discharge port 21 due to the uneven sliding speed of the material 300 in the inclined conveying groove 2. In addition, the push plate 41 plays a role in preventing the material 300 from adhering to the surface of the conveying groove 2 and further prevents the material 300 from adhering to the inner wall or the bottom during collection.

[0049] The pressing mechanism 4 has a second moving mechanism 42 and a pressing plate 41. The pressing plate 41 is provided on the side away from the discharge port 21 of the conveying groove 2. The second moving mechanism 42 drives the pressing plate 41 to move along the length direction of the conveying groove 2 between the opening 11 and the discharge port 21. Preferably, the second moving mechanism 42 may be a moving rail along the length direction of the conveying groove 2. A moving groove (not shown in the figure) along the length direction of the conveying groove 2 is opened on the side wall of the conveying groove 2. One side of the pressing plate 41 penetrates the moving groove and is connected to the moving rail. The moving groove drives the pressing plate 41 to reciprocate along the length direction of the conveying groove 2 between the opening 11 and the discharge port 21, thereby pressing the material 300 in the conveying groove 2 into the discharge port 21 multiple times.

[0050] In this embodiment, the annular groove 10 can simultaneously receive the materials 300 discharged from the plurality of dropping ports of the multi-head metering device. Due to the rotation of the rotating shaft 321 of the scraping mechanism 3, the scraping blade 31 is driven to move within the receiving groove 1, scraping the material 300 adhering to the inside of the receiving groove 1, and first collecting and conveying the materials 300 discharged from the plurality of dropping ports. The material 300 conveyed to the opening 11 drops into the conveying groove 2. The pressing plate 41 provided corresponding to the opening 11 moves along the length direction of the conveying groove 2 in response to the dropping of the material 300, and presses the material 300 so that it quickly slides downwards to the discharge port 21, thereby enabling accurate and rapid packaging of the material 300 of a specified weight.

[0051] Second Embodiment FIG. 3 is a schematic overall structure diagram of a multi-head metering and packaging system having any one of the material collection devices 100 in the first embodiment according to the second embodiment of the present invention. Combining FIGS. 2 and 3, the multi-head metering and packaging system further includes a multi-head metering device 200 provided above the material collection device 100.

[0052] The specific type of the multi-head metering device 200 is not limited, and a commercially available multi-head metering device 200 having a plurality of metering shoots 5 may be selected. The material 300 falls in from above the metering shoot 5, is metered in the metering shoot 5, and then is discharged from the dropping port 6 at the lower end of the metering shoot 5.

[0053] For example, the material 300 enters the multi-head metering device 200 through the receiving end 201, and is dispersed to the dispersing end 202 by the receiving end 201, enters the lower primary storage hopper 203 through the dispersing end 202, and then slides down into the lower metering shoot 5 under the action of gravity. After the material 300 is metered in the metering shoot 5, the multi-head metering device 200 controls to open the dropping ports 6 at the lower ends of some of the metering shoots 5 according to the specified target weight, so that the weight of the dropped material 300 is approximately equal to the target weight.

[0054] However, the "dropping port" mentioned here may be the lower end outlet of the metering shoot 5. The material directly drops from the dropping port 6 by gravity after being metered, or the dropping port 6 may be an auxiliary dropping mechanism connected to the lower end of the metering shoot 5, such as a rotary dropping device or an inclined dropping hopper. The combination of the driving force of the auxiliary dropping mechanism and gravity is used to accelerate the guiding of the material 300 to drop from the dropping port 6.

[0055] In particular, the plurality of metering shoots 5 of the multi-head metering device 200 and the rotating shaft 321 of the scraping mechanism 3 are coaxially provided, and the rotating shaft 321 is rotatably connected to the bottom of the multi-head metering device 200, so that it can be provided to be suspended at the axial center position of the annular groove 10. The lower ends of the plurality of metering shoots 5 are provided such that the projections overlap the annular groove 10, so that the material 300 discharged from the dropping ports 6 at the lower ends of the plurality of metering shoots 5 can accurately drop into the receiving groove 1.

[0056] The rotating shaft 321 is provided to be suspended at the axial center position of the receiving groove 1 and does not need to bear a load. Therefore, between the multi-head metering device 200 and the material collecting device 100, it is necessary to be firmly fixed by other configurations.

[0057] For example, in some alternative embodiments, the material collecting device 100 further has a base 7 fitted outside the conveying groove 2 and a bottom plate 8 formed to extend outward from the bottom surface of the receiving groove 1. By fitting and providing the base 7 outside the conveying groove 2, the position of the conveying groove 2, particularly the position of the discharge port 21 at the lower end of the conveying groove 2, can be restricted to a certain extent, which is advantageous for aligning the packaging bag and the discharge port 21 during packaging.

[0058] The multi-head metering and packaging system may have a plurality of support rods 9 provided symmetrically. One end of the support rod 9 is fixed to the bottom of the multi-head metering device 200, the other end is fixed to the upper surface of the base 7 of the material collecting device 100, and the middle part of the support rod 9 is fixed to the bottom plate 8 of the material collecting device 100. By fixedly connecting the base 7, the receiving groove 1, and the multi-head metering device 200 through the support rod 9, it is easy to fix the multi-head metering device 200 and the receiving groove 1 so that they do not contact each other vertically, and it is possible to avoid preventing the movement of the first moving mechanism 32 in the receiving groove 1. By fixing the position of the receiving groove 1 so that it does not always change, the material 300 discharged from the dropping port 6 can be stably received. Also, the annular groove 10 may be provided so as not to contact the dropping port 6, whereby it is possible to avoid the material 300 adhering to the connection portion during the process of dropping from the dropping port 6.

[0059] In this embodiment, by further designing the connection method between the material collection device 100 and the multi-head metering device 200, the material collection device 100 can be combined with the multi-head metering device 200 to form a multi-head metering and packaging system. Since the multi-head metering and packaging system has high structural reliability and the moving parts do not bear the load, it can ensure that the fixed connection between each component is stable in the long term. After the material 300 is discharged from the dropping port 6 of the multi-head metering device 200, it can accurately fall into the receiving groove 1 of the material collection device 100, which is beneficial for the subsequent collection of the material 300.

[0060] Third Embodiment FIG. 4 is a flowchart of a material collection method according to the third embodiment of the present invention. The material collection method includes a receiving step S1 of receiving the material discharged from the dropping port in the receiving groove, a scraping step S2 of scraping the material in the receiving groove and pushing the material into the conveying groove after the receiving step, a conveying step S3 of receiving the material conveyed in the scraping step S1 and conveying the material to the discharge port in the inclined conveying groove, and a pushing step S4 of pushing the material in the conveying groove to the discharge port in the conveying step.

[0061] As described in the first embodiment, when a plurality of openings 11 are formed in the receiving groove 1 and the plurality of openings 11 are uniformly distributed, the first moving mechanism 32 includes a rotating shaft 321 and a plurality of links 322 uniformly provided along the circumferential direction of the rotating shaft 321. In each scraping step, the rotating shaft 321 can scrape and convey all the material 300 in the receiving groove 1 without rotating a full circle. Particularly, when the number of the openings 11 and the links 322 is n and they are uniformly distributed, if the rotating shaft 321 rotates by 2π / n degrees each time, all the material 300 in the receiving groove 1 can be scraped and conveyed, and the working efficiency is higher.

[0062] More preferably, the material collection method can be repeatedly executed, and the conveyance step S3 in a certain cycle and the receiving step S1 in the next cycle can be performed simultaneously. By the scraping step S2 and the pushing step S4, the time for the material 300 to stop in the receiving groove 1 and the conveyance groove 2 can be controlled, and it can be ensured that all the material 300 in the receiving groove 1 has already entered the conveyance groove 2 before the next receiving step S1. Thereby, it realizes performing the conveyance step in the previous cycle and the receiving step in the current cycle simultaneously, ensures that the weight of the material 300 in the packaging bag is consistent, and effectively improves the working efficiency of packaging the material 300.

[0063] Hereinafter, taking the material collection device 100 shown in FIGS. 5 to 10 as an example, the material collection process when the material collection device 100 according to the present embodiment executes the material collection method in a specific application scenario will be described in detail.

[0064] First, as shown in FIG. 5, the receiving step S1 is executed, and a plurality of lumps of the material 300 with a specified weight discharged from the multi-head weighing device 200 are received by the annular groove 10.

[0065] After that, the scraping step S2 is executed. As shown in FIGS. 6 and 7, the rotating shaft 321 rotates the link 322, and the scraping blade 31 rotates in the annular groove 10. During the rotation of the scraping blade 31, the material 300 in the receiving groove 1 and the material 300 adhering to the inner wall of the receiving groove 1 are continuously scraped and collected by the scraping blade 31 and move along the annular groove 10 toward the opening 11. When the rotating shaft 321 rotates by 1 / 4π degrees, the scraping blade 31 moves to the opening 11, and the material 300 falls into the opening 11.

[0066] Execute the conveying step S3. As shown in FIG. 8, the upper end of the conveying groove 2 receives the material 300 conveyed in the scraping step S2, and the material 300 is conveyed to the discharge port 21 in the inclined conveying groove 2. At the same time, execute the receiving step S1 of the next cycle. The multi-head weighing device 200 re-discharges a plurality of masses of the material 300 of a specified weight, and the annular groove 10 receives a plurality of masses of the material 300 of the next cycle.

[0067] Execute the pressing step S4. As shown in FIGS. 9 and 10, the second moving mechanism 42 drives the pressing plate 41 provided on the side away from the discharge port 21 of the conveying groove 2 to move downward along the conveying groove 2, presses and discharges the material 300 so as to quickly collect it to the discharge port 21. Then, the pressing plate 41 moves upward to the side away from the conveying groove 2 in the opening 11 to reset. At the same time, execute the scraping step S2 of the next cycle. The rotating shaft 321 rotates the link 322, and the scraping blade 31 rotates by 1 / 4π degrees in the receiving groove 1, scrapes the material 300 and conveys it to the opening 11. By cycling in this order, rapid and accurate collection and packaging of the viscous material 300 can be realized.

[0068] The above are only preferred embodiments of the present invention, and do not limit the present invention. All modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Explanation of Reference Numerals

[0069] 100 Material collection device, 200 Multi-head weighing device, 201 Receiving end, 202 Dispersion end, 203 Primary storage hopper, 300: Material, 1 Receiving groove, 10 Annular groove, 11 Opening, 12 Arc-shaped groove, 2 Conveying groove, 21 Discharge port, 3 Scraping mechanism, 31 Scraping blade, 32 First moving mechanism, 321 Rotating shaft, 322 Link, 4 Pressing mechanism, 41 Pressing plate, 42 Second moving mechanism, 5 Weighing chute, 6 Drop port, 7 Base, 8 Bottom plate, 9 Support rod

Claims

1. 1. A material collection device, comprising: a receiving groove used for receiving the material and having at least one opening through which the material falls; a scraping mechanism including a first moving mechanism and a scraping blade provided in the receiving groove, the first moving mechanism driving the scraping blade so as to move in the receiving groove; a conveying groove provided at an incline below the receiving groove, the conveying groove having an upper end communicating with the opening and a lower end formed as a discharge port; A material collection device characterized in that it includes a pushing mechanism having a second moving mechanism and a push plate, the push plate being provided on the side of the transport groove away from the discharge outlet, and the second moving mechanism includes a pushing mechanism that drives the push plate to move along the longitudinal direction of the transport groove.

2. The material collecting device according to claim 1, characterized in that the receiving groove is formed as an annular groove formed by connecting one or more arc-shaped grooves, and an opening is formed at the connected position between the arc-shaped grooves.

3. The first moving mechanism is A rotation shaft provided at an axial center position of the annular groove; 3. The material collecting device of claim 2, further comprising: a link having one end fixed to a side of the rotating shaft and the other end extending radially along the annular groove to above the annular groove, the scraping blade being arranged so as to enter the annular groove at the end of the link away from the rotating shaft.

4. A material collecting device as claimed in any one of claims 1 to 3, characterized in that the lower end of the scraping blade is formed as uneven comb teeth, and the lower edge of the comb teeth is provided in contact with the receiving groove.

5. a base that is fitted to the outside of the conveying groove; 3. The material collecting apparatus of claim 2, further comprising a bottom plate extending outwardly from a bottom surface of the receiving groove and fixedly connected to the base.

6. The material collection device described in claim 1, characterized in that the second moving mechanism is formed as a moving rail along the longitudinal direction of the transport groove, a moving groove is opened in the side wall of the transport groove along the longitudinal direction of the transport groove, and one side of the push plate penetrates the moving groove and is connected to the moving rail.

7. 3. The material collecting device of claim 2, wherein the receiving groove has a plurality of the openings, the conveying groove includes a plurality of inclined chutes corresponding to the openings, and the lower ends of the plurality of inclined chutes jointly form an enclosed vertical discharge outlet.

8. A multi-head weighing and packaging system comprising a material collection device according to any one of claims 2 to 7, The present invention further includes a multi-head weighing device having a plurality of metering chutes arranged in an annular shape, the plurality of metering chutes and a rotation shaft of the scraping mechanism are arranged coaxially, and the rotation shaft is rotatably connected to a bottom of the multi-head weighing device; A multi-head weighing and packaging system, characterized in that, in a plan view, the lower ends of the multiple weighing chutes are arranged to overlap with the annular groove and are formed as multiple drop openings.

9. 9. The multi-head weighing and packaging system of claim 8, further comprising a support rod having one end fixed to the bottom of the multi-head weighing device, the other end fixed to the upper surface of the base of the material collecting device, and a middle portion fixed to the bottom plate of the material collecting device.

10. A material collecting method to be applied to the material collecting device according to any one of claims 1 to 7, comprising: a receiving step for receiving the material discharged from the drop port in a receiving groove; a scraping step of scraping the material in the receiving groove and pushing the material into a conveying groove after the receiving step; a conveying step of receiving the material conveyed in the scraping step and conveying the material to a discharge port in the inclined conveying groove; A material collecting method, characterized in that the transporting step includes a pushing step of pushing the material in the transport groove to the discharge outlet.

11. the receiving groove has a plurality of openings, the plurality of openings being uniformly distributed; the first moving mechanism includes a rotating shaft and a plurality of links uniformly arranged along a circumferential direction of the rotating shaft, and a scraping blade is provided at an end of the link away from the rotating shaft; the number of the links and the number of the openings are both equal to n; The material collecting method according to claim 10, characterized in that in the scraping step, the rotating shaft drives the link so as to rotate by 2π / n degrees each time.

12. 11. The material collecting method according to claim 10, characterized in that the material collecting method is repeatedly performed, and the conveying step in one cycle and the receiving step in the next cycle are performed simultaneously.

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