Straight-row multi-column discharging metering device suitable for particle packaging machine

Abstract

The utility model relates to the technical field of packaging machinery, and discloses a straight-row multi-column blanking metering device suitable for a particle packaging machine, which comprises a material conveying unit arranged on a rack and a blanking metering unit arranged below the material conveying unit, the material conveying unit comprises a discharging pipe and a discharging pipe horizontal driving assembly, the discharging metering unit comprises a measuring cup, a measuring cup vertical driving assembly and a bearing table used for blocking the discharging pipe, the measuring cup is arranged on the bearing table in a sliding mode, and a metering cavity is defined by the measuring cup and the side wall of the bearing table; the discharging pipe horizontal driving assembly drives the discharging pipe to do linear reciprocating motion on the bearing table, so that the discharging pipe is communicated with the metering cavity, and discharging of the measuring cup is achieved. The measuring cup vertical driving assembly drives the measuring cup to move up and down in a reciprocating mode and is used for adjusting the volume of the measuring cavity. According to the multi-column feeding device, multi-column feeding can be achieved, the metering weight of the multi-column measuring cups can be synchronously adjusted, the working efficiency can be effectively improved, and the multi-column feeding device is easy to popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery, and particularly relates to a direct multi-column feeding and metering device applicable to a particle packaging machine. Background Art

[0002] An automatic packaging machine is an increasingly mature automated production device in modern industry. In people's daily lives, people often come into contact with items with packaging bags, ranging from large appliances to small items such as salt and seasonings. In the field of automatic packaging machines, quantitative packaging is often required for packaging fine particulate materials, and packaging is carried out with a determined weight and volume.

[0003] Currently, for the feeding of bulk particulate materials such as salt, most are rotary feeding, which can only feed once at a time, and the feeding metering weight is generally preset and non-adjustable, and only one packaging quantity can be metered. For small particulate materials that require frequent adjustment of the metering weight, it is not convenient to use, and the feeding speed is slow, affecting production efficiency.

[0004] The utility model patent with the publication number CN213083544U discloses a "dual-feeding unit alternating blanking mechanism of a multi-material filling machine", and its technical solution is as follows: It includes an alternating blanking unit and two feeding units. The alternating blanking unit includes an alternating conversion device and a blanking device. The blanking device includes a mixed material filling hopper and two measuring cup groups. The two measuring cup groups are respectively installed on the left and right sides of the top entrance of the mixed material filling hopper. Each measuring cup group includes a plurality of measuring cups; the alternating conversion device includes a support frame, a slidable frame, a slidable frame driving member, and two material conveying units. The slidable frame is slidably installed on the support frame, and the two material conveying units are respectively installed on the left and right sides of the slidable frame. Each material conveying unit includes a plurality of material conveying sleeves.

[0005] The above-mentioned prior art is a direct feeding mechanism, and multi-column feeding of measuring cups can be achieved at one time, but the weight of the material falling into the measuring cups still cannot be adjusted. Summary of the Invention

[0006] In order to solve the problems and deficiencies existing in the above-mentioned prior art, the utility model provides a direct multi-column feeding and metering device applicable to a particle packaging machine, which can not only achieve multi-column feeding, but also synchronously adjust the metering weights of multiple columns of measuring cups, and can effectively improve work efficiency.

[0007] In order to achieve the above-mentioned invention purpose, the technical solution of the utility model is as follows:

[0008] A direct multi-column blanking metering device applicable to a granule packaging machine, comprising a material conveying unit arranged on a frame and a blanking metering unit arranged below the material conveying unit. The material conveying unit includes a blanking pipe and a horizontal driving assembly for the blanking pipe. The blanking metering unit includes a measuring cup, a vertical driving assembly for the measuring cup, and a bearing table for blocking the blanking pipe. The measuring cup is slidably arranged on the bearing table, and a metering cavity is formed by the enclosure of the measuring cup and the side wall of the bearing table. The horizontal driving assembly for the blanking pipe drives the blanking pipe to linearly reciprocate on the bearing table, so that the blanking pipe communicates with the metering cavity to realize blanking into the measuring cup. The vertical driving assembly for the measuring cup drives the measuring cup to reciprocate up and down to adjust the volume of the metering cavity.

[0009] As a preferred solution of the present utility model, the horizontal driving assembly for the blanking pipe includes a crank-link mechanism, a horizontal driving plate, and a horizontal driving servo motor. The blanking pipe is installed on the horizontal driving plate. One end of the crank-link mechanism is connected to the horizontal driving servo motor, and the other end is connected to the horizontal driving plate.

[0010] As a preferred solution of the present utility model, the vertical driving assembly for the measuring cup includes a vertical driving plate, a lead screw, and a vertical driving pulley mechanism. The vertical driving plate is sleeved on the lead screw. Both ends of the lead screw are respectively connected to the vertical driving pulley mechanism and the frame, and the measuring cup is connected to the vertical driving plate.

[0011] As a preferred solution of the present utility model, the measuring cups are symmetrically distributed on both sides of the bearing table.

[0012] As a preferred solution of the present utility model, the number of the blanking pipes corresponds to the number of the measuring cups on one side of the bearing table.

[0013] As a preferred solution of the present utility model, an opening and closing unit for opening and closing the discharge port is arranged at the discharge port at the bottom of the measuring cup. The opening and closing unit includes a cover plate and a swing arm. One end of the cover plate is rotatably connected to the swing arm, and an elastic component capable of generating elastic deformation is arranged between the other end and the swing arm. The swing arm is connected with a swing arm driving mechanism for driving its rotation. The cover plate rotates together with the swing arm to open and close the discharge port of the measuring cup, and when the elastic component generates elastic deformation, the cover plate rotates relative to the swing arm along with the elastic deformation of the elastic component and is hermetically attached to the discharge port of the measuring cup.

[0014] As a preferred solution of the present utility model, the elastic component includes a first spring column and a first spring sleeved on the first spring column. One end of the first spring column is fixedly connected to the cover plate, and the other end is movably arranged in a kidney-shaped hole of the swing arm. One end of the first spring abuts against the cover plate, and the other end abuts against the swing arm.

[0015] As a preferred solution of the present utility model, the rotation connection points of the elastic component with the cover plate and the swing arm are located on the same straight line along the length direction of the cover plate.

[0016] As a preferred solution of the present utility model, the cover plate is rotationally connected to the swing arm through a second spring column, and a second spring is sleeved on the second spring column.

[0017] As a preferred solution of the present utility model, a stirring unit for stirring granular materials is arranged above the material conveying unit. The stirring unit includes a stirring motor, a stirring cylinder, and stirring paddles arranged in the stirring cylinder and connected to the stirring motor. An outlet pipe connected to the blanking pipe is arranged on the stirring cylinder, and the number of outlet pipes corresponds to the number of blanking pipes.

[0018] Advantages of the present utility model:

[0019] (1) During the process of the blanking pipe moving horizontally in a straight line for reciprocating blanking, under the action of the measuring cup vertical driving component, the measuring cup is driven to move up and down in the vertical plane, thereby adjusting the volume of the measuring cavity formed by the enclosure of the measuring cup and the side wall of the bearing platform, achieving the effect of quickly adjusting the weight of the granular materials entering the measuring cup, effectively improving the working efficiency. Moreover, multi-column blanking can be realized, and the metering weights of multiple columns of measuring cups can be adjusted synchronously, which can effectively improve the working efficiency and is easy to promote and use.

[0020] (2) The horizontal driving servo motor of the present utility model drives the crank and connecting rod mechanisms on both sides of the horizontal driving plate to move synchronously through a connecting shaft. The two crank and connecting rod mechanisms share a power source, ensuring the stability of the straight-line reciprocating movement of the blanking pipe, and also making the entire horizontal driving structure simpler and having lower energy consumption.

[0021] (3) The measuring cups of the present utility model are symmetrically distributed on the opposite side edges of the bearing platform. During the horizontal reciprocating straight-line movement of the blanking pipe, the blanking is alternately carried out on the measuring cups on both sides in sequence, and the overall working efficiency of the device is higher.

[0022] (4) An elastic component is assembled between the cover plate and the swing arm of the measuring cup of the present utility model. Due to reasons such as processing errors and the stroke of the cylinder, there is a problem that the cover plate cannot completely seal the discharge port. Therefore, when the driving mechanism drives the cover plate to rotate towards the discharge port to close the discharge port, under the action of the elastic component, the cover plate further rotates towards the discharge port relative to the swing arm, so that the cover plate is completely sealed and attached to the discharge port of the measuring cup body, thus ensuring the sealing performance during closing.

[0023] (5) In the present utility model, a material stirring unit is arranged above the material conveying unit, which can break up the agglomerated granular materials and then feed them, ensuring the uniform fineness of the powder entering the blanking and metering unit and improving the product packaging quality. Description of the Drawings

[0024] The foregoing and following specific descriptions of the present utility model will become clearer when read in conjunction with the following drawings, in which:

[0025] Figure 1 is the front view of the overall structure of the device of the present utility model;

[0026] Figure 2 is the side view of the overall structure of the device of the present utility model;

[0027] Figure 3 is the top view of the overall structure of the device of the present utility model;

[0028] Figure 4 is the three-dimensional assembly view of the material conveying unit and the blanking metering unit of the present utility model;

[0029] Figure 5 is the top view of the assembly of the material conveying unit and the blanking metering unit of the present utility model;

[0030] Figure 6 is the rear view of the assembly of the material conveying unit and the blanking metering unit of the present utility model;

[0031] Figure 7 is the side view of the assembly of the material conveying unit and the blanking metering unit of the present utility model;

[0032] Figure 8 is the rear view of the measuring cup structure of the present utility model;

[0033] Figure 9 is the schematic diagram of the closing of the discharge port of the measuring cup of the present utility model;

[0034] Figure 10 is the schematic diagram of the opening of the discharge port of the measuring cup of the present utility model.

[0035] In the figure:

[0036] 1. Material conveying unit; 2. Blanking metering unit; 3. Stirring unit; 4. Opening and closing unit; 5. Elastic component; 6. Swing arm driving mechanism; 7. Kidney-shaped hole; 8. Second spring column; 9. Second spring; 101. Blanking pipe; 102. Horizontal driving component of the blanking pipe; 201. Bearing platform; 202. Measuring cup; 203. Vertical driving component of the measuring cup; 301. Stirring motor; 302. Stirring cylinder; 303. Stirring paddle; 401. Cover plate; 402. Swing arm; 501. First spring column; 502. First spring; 1021. Crank and connecting rod mechanism; 1022. Horizontal driving plate; 1023. Horizontal driving servo motor; 2031. Vertical driving plate; 2032. Lead screw; 2033. Vertical driving pulley mechanism. Detailed Description of the Preferred Embodiment

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will further illustrate the technical solutions for achieving the invention purpose of the present utility model through several specific embodiments. It should be noted that the technical solutions claimed by the present utility model include but are not limited to the following embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0038] Embodiment 1

[0039] This embodiment discloses a direct multi-column blanking metering device applicable to a particle packing machine. Referring to the attached drawings of the specification, Figures 4 - 7 the blanking metering device is composed of a material conveying unit 1 and a blanking metering unit 2 arranged on a frame. The blanking metering unit 2 is located below the material conveying unit 1. Specifically, the material conveying unit 1 includes a blanking pipe 1 and a blanking pipe horizontal driving assembly 102 connected to the blanking pipe 101. The blanking metering unit 2 includes a bearing platform 201, a measuring cup 202, and a measuring cup vertical driving assembly 203. The measuring cup 202 is slidably arranged on the side wall of the bearing platform 201. The measuring cup 202 and the side wall of the bearing platform 201 enclose a metering cavity for loading the granular material input from the upper blanking pipe 1. The measuring cup vertical driving assembly 203 is connected to the measuring cup 202. The top of the measuring cup is open as a feed inlet, and the bottom is provided with a discharge port. An opening and closing unit for opening and closing the discharge port is arranged at the discharge port. The blanking pipe horizontal driving assembly 102 drives the blanking pipe 101 to reciprocate linearly on the bearing platform 201, so that the bottom outlet of the blanking pipe 101 communicates with the metering cavity of the lower measuring cup 202 to achieve blanking into the measuring cup 202. The measuring cup vertical driving assembly 2003 drives the measuring cup 202 to reciprocate up and down relative to the bearing platform 201, thereby adjusting the volume of the metering cavity, and finally achieving the effect of automatically adjusting the weight of the granular material entering the measuring cup.

[0040] In the embodiment depicted in the present utility model, during the reciprocating movement of the blanking pipe 101 on the bearing platform 201, when the blanking pipe 101 moves to the edge of the bearing platform at the position of the measuring cup, the bottom outlet of the blanking pipe 101 communicates with the metering cavity of the measuring cup, and the blanking pipe 101 discharges material into the measuring cup 202. After the blanking pipe 101 completes blanking and resets and leaves, the bottom outlet of the blanking pipe 101 is blocked by the bearing platform 201. After the blanking pipe 101 leaves, the discharge port at the bottom of the measuring cup 202 is opened, and the granular material in the metering cavity falls into the lower packaging bag. By continuously performing the above operations, continuous filling of granular materials is achieved.

[0041] During the reciprocating movement of the blanking pipe 101, the bottom outlet of the blanking pipe 101 can be blocked by the way that the bottom surface of the blanking pipe 101 fits with the upper surface of the bearing platform 201, or a blocking plate or other structure can be arranged on the upper surface of the bearing platform to block the bottom outlet of the blanking pipe 101.

[0042] In the embodiment depicted by the present utility model, the measuring cup 202 is a semi-cup-shaped cup body, which is slidably connected to the side wall of the bearing platform 201 through a vertical driving slide rail assembly. The cup body of the measuring cup and the side wall of the bearing platform 202 together enclose a measuring cavity for loading granular materials. When the measuring cup 202 rises, the volume of the measuring cavity formed by the measuring cup 202 and the side wall of the bearing platform 201 decreases, and the weight of the material that the measuring cup 202 can hold also decreases accordingly. When the measuring cup 202 descends, correspondingly, the volume of the measuring cavity formed by the measuring cup 202 and the side wall of the bearing platform 201 increases, and the weight of the material that the measuring cup 202 can hold increases accordingly. Therefore, by the up and down movement of the measuring cup, the volume of the measuring cavity formed by it and the side wall of the bearing platform 201 can be adjusted, and further the blanking weight of the measuring cup 202 can be adjusted.

[0043] Embodiment 2

[0044] This embodiment discloses a direct discharge multi-column blanking metering device applicable to a granule packaging machine. On the basis of Embodiment 1, in order to improve the blanking efficiency, the measuring cups 202 are symmetrically arranged on the opposite sides of the bearing platform 201 to form two rows of measuring cup groups. Each row of measuring cup groups includes a plurality of measuring cups 202, and the number of the blanking pipes 101 corresponds to the number of the measuring cups 202 arranged on one side of the bearing platform 201. When the blanking pipe 101 makes a linear reciprocating movement on the bearing platform 201, it discharges materials into the measuring cups 202 in the measuring cup groups on both sides in sequence.

[0045] Embodiment 3

[0046] This embodiment discloses a direct discharge multi-column blanking metering device applicable to a granule packaging machine. On the basis of Embodiment 1, the horizontal driving assembly 102 of the blanking pipe includes a crank connecting rod mechanism 1021, a horizontal driving plate 1022, a horizontal driving servo motor 1023 and a horizontal driving pulley mechanism. The blanking pipe 101 is installed on the horizontal driving plate 1022. There are two crank connecting rod mechanisms 1021, which are symmetrically distributed on both sides of the horizontal driving plate 1022. One end of each of the two crank connecting rod mechanisms 1021 is connected to the horizontal driving plate 1022, and the other end is connected to the driven wheel in the horizontal driving pulley mechanism through the same connecting shaft. The driven wheel is connected to the driving wheel through a driving belt, and the driving wheel is in turn connected to the output end of the horizontal driving servo motor 1023. The horizontal driving servo motor 1023 and the horizontal driving pulley mechanism are fixed on the machine frame through a mounting plate.

[0047] The rotation of the horizontal drive servo motor 1023 drives the horizontal drive pulley mechanism to rotate synchronously, thereby driving the connecting shaft connected to it to rotate, and the connecting shaft drives the two crank-connecting rod mechanisms 1021 on both sides to move synchronously, and the crank-connecting rod mechanism 1021 drives the horizontal drive plate 1022 connected to it to reciprocate, and the discharge pipe 101 arranged on the horizontal drive plate 1022 reciprocates with the horizontal drive plate 1022. During the reciprocating motion, the discharge pipe 101 is connected or staggered with the metering cavity of the measuring cup 202. When connected, the discharge pipe 101 discharges the measuring cup 202.

[0048] Furthermore, in order to ensure the movement stability of the horizontal driving plate 1022, horizontal driving rail assemblies are respectively provided on both sides of the carrier 201. Specifically, the horizontal driving rail assembly includes a horizontal driving rail and a roller slidably arranged on the horizontal driving rail. The horizontal driving rail is installed on the carrier 201, and the roller is installed on the horizontal driving plate 1022. The horizontal driving plate 1022 is slidably connected to the carrier 201 through the horizontal driving rail assembly.

[0049] Example 4

[0050] The present embodiment discloses a straight-row multi-column material discharge metering device suitable for a particle packaging machine. The difference between the present embodiment and the embodiment 3 is that the structure of the discharge pipe horizontal drive assembly 102 is different. In the present embodiment, the discharge pipe horizontal drive assembly 102 is composed of a horizontal drive plate 1022 and a horizontal drive cylinder. Two horizontal drive cylinders are provided and distributed on both sides of the horizontal drive plate 1022. The horizontal drive cylinder is fixed on the frame, and its movable end is connected to the horizontal drive plate 1022 to drive the horizontal drive plate 1022 to reciprocate linearly.

[0051] In the embodiment depicted in the present invention, the horizontal driving cylinder can also be replaced by an electric cylinder, as long as it can drive the horizontal driving plate 1022 to perform linear reciprocating motion.

[0052] Example 5

[0053] This embodiment discloses a direct multi-column feeding and metering device applicable to a particle packaging machine. On the basis of Embodiment 1, the vertical driving assembly 203 of the measuring cup is composed of a vertical driving plate 2031, a lead screw 2032, and a vertical driving pulley mechanism 2033. There are two sets of the lead screw 2032 and the vertical driving pulley mechanism 2033, which are respectively located on both sides of the vertical driving plate 2031. The two ends of the vertical driving plate 2031 are respectively sleeved on the lead screws 2032 on both sides and are in threaded cooperation with the lead screws 2032. One end of the two lead screws 2032 is fixed on the frame, and the other end is connected to the driven pulley of the vertical driving pulley mechanism 2033 arranged on the corresponding side. The driven pulley is connected to the driving pulley through a driving belt, and the driving pulley is connected to the output end of the vertical driving servo motor. The vertical driving pulley mechanism 2033 is integrally fixed on the frame through a mounting plate.

[0054] Embodiment 6

[0055] This embodiment discloses a direct multi-column feeding and metering device applicable to a particle packaging machine. The difference between this embodiment and Embodiment 5 is that the vertical driving assembly 203 of the measuring cup is composed of a vertical driving plate 2031 and a vertical driving cylinder. There are two vertical driving cylinders, which are distributed on both sides of the vertical driving plate 2031. The vertical driving cylinders are fixed on the frame, and their movable ends are connected to the vertical driving plate 2031 to drive the vertical driving plate 2031 to move up and down reciprocally.

[0056] In the embodiment depicted in the present utility model, the vertical driving cylinder can also be replaced by an electric cylinder as long as it can drive the vertical driving plate 2031 to move up and down reciprocally.

[0057] Embodiment 7

[0058] This embodiment discloses a direct multi-column feeding and metering device applicable to a particle packaging machine. On the basis of any of the above embodiments, with reference to the accompanying drawings of the specification Figures 8 - 10, a closing and opening unit 4 for closing and opening the discharge port is provided at the position of the discharge port at the bottom of the measuring cup. The closing and opening unit 4 includes a cover plate 401, the cover plate 401 is connected with a swing arm 402, and the swing arm is further connected with a swing arm driving mechanism 6. The swing arm driving mechanism 6 is fixed on the outer wall of the measuring cup 202. The swing arm 402 is respectively hinged to the swing arm driving mechanism 6 and the outer wall of the measuring cup 202. The swing arm driving mechanism 6 drives the swing arm 402 to rotate around the hinge point of the two, and the cover plate 401 connected to the swing arm 402 rotates together with the swing arm 402, and the cover plate 402 automatically opens or closes the discharge port of the measuring cup 202; Further, one end of the cover plate 401 is hinged to the swing arm 402, and an elastic component 5 is further assembled between the other end of the cover plate 401 and the swing arm 402. The elastic component 5 can generate elastic deformation. When the elastic component 5 undergoes elastic deformation, the cover plate 401 can rotate relative to the swing arm 402 along with the deformation of the elastic component 5 (rotate around the hinge point of the two, and the rotation direction is towards the discharge port of the measuring cup 202), so as to be completely sealed and attached to the discharge port of the measuring cup 202.

[0059] In the embodiment depicted by the present utility model, after the blanking pipe 101 discharges materials into the measuring cup 202, the swing arm driving mechanism 6 drives the swing arm 402 rotatably connected thereto to rotate away from the discharge port. The swing arm 402 drives the cover plate 401 connected thereto to move together, opening the discharge port of the measuring cup 202, and the granular materials in the measuring cup 202 fall into the packaging bag below. Then, the swing arm driving mechanism 6 drives the swing arm 402 to rotate and reset towards the discharge port. Similarly, the swing arm 402 drives the cover plate 401 connected thereto to rotate together, and finally closes the discharge port of the measuring cup 202. After the cover plate 401 is reset, under the action of the discharge port of the measuring cup, the elastic component 5 provided between the cover plate 401 and the swing arm 402 undergoes elastic deformation. The elastic force corresponding to the elastic deformation acts on the cover plate 401, pushing it to rotate relative to the swing arm 402 around the hinge point of the two towards the discharge port, so that the cover plate 401 is completely sealed and attached to the discharge port of the measuring cup, ensuring the sealing performance at the discharge port when the measuring cup is in the closed state and also guaranteeing the metering accuracy during the material discharging of the measuring cup.

[0060] In this embodiment, the swing arm driving mechanism 6 is a swing arm cylinder 601. The swing arm cylinder 601 is fixed on the outer wall of the measuring cup 202, and the piston rod is hinged to the swing arm 402.

[0061] It should be noted that the swing arm driving mechanism 6 can also be an electric cylinder. The electric cylinder drives the swing arm 402 to rotate around the hinge point of the two, and further drives the cover plate 401 connected to the swing arm 402 to rotate together with the swing arm 402.

[0062] Embodiment 8

[0063] This embodiment discloses a direct discharge multi-column feeding and metering device applicable to a particle packing machine. On the basis of Embodiment 7, the structure of the elastic component 5 is specifically as follows.

[0064] The elastic component 5 includes a first spring column 501 and a first spring 502 sleeved on the first spring column 501. One end of the first spring column 501 is fixedly connected to the cover plate 401, and the other end is movably arranged in the kidney-shaped hole 7 of the swing arm 402. One end of the first spring 502 abuts against the cover plate 401, and the other end abuts against the swing arm 402.

[0065] Further, in order to prevent the first spring column 501 from disengaging from the kidney-shaped hole 7 of the swing arm 402, a pin is radially installed on the first spring column 501. The pin is located at the tail of the end of the first spring column 501 passing through the kidney-shaped hole 7, and the pin abuts against one side of the swing arm 402 to limit the first spring column 501 and prevent it from disengaging from the kidney-shaped hole 7.

[0066] After the granular material in the measuring cup is discharged into the packaging bag, the swing arm cylinder 601 drives the swing arm 402 to rotate around their hinge point, driving the cover plate 401 connected to the swing arm 402 to rotate towards the discharge port of the measuring cup 202 together, and the cover plate 401 closes the discharge port. When the swing arm cylinder 601 drives the cover plate 401 to reset, the first spring 501 is compressed and elastically deformed, and the spring force of the first spring 501 acts on the cover plate 401, further pushing the cover plate 401 to rotate relative to the swing arm 402 around the hinge point where it is connected to the swing arm 402 towards the discharge port of the measuring cup 202, further adjusting the angle of the cover plate 401, so that the cover plate 401 can be completely sealed and fitted to the discharge port of the measuring cup 202, ensuring the sealing performance when the discharge port is closed and preventing the granular material from leaking. Moreover, the tail of the first spring column 501 is movably arranged in the kidney-shaped hole 7. During the process of the cover plate 401 rotating relative to the swing arm 402 around the hinge point where it is connected to the swing arm 402, the first spring column 501 can move freely in the kidney-shaped hole 7, so as to cooperate with the rotation of the cover plate 401 relative to the swing arm 402 and ensure that the cover plate 401 can be sealed and fitted to the discharge port of the measuring cup 202.

[0067] It should be noted that the elastic component 4 can also be elastic rubber.

[0068] Further, the cover plate 401 is rotatably connected to the swing arm 402 through the second spring column 8. Specifically, one end of the second spring column is fixedly connected to the cover plate 401, and the other end is rotatably connected to the swing arm 402 through a pin shaft. A second spring 9 is also sleeved on the second spring column 8. One end of the second spring 9 abuts against the cover plate 401, and the other end abuts against the swing arm 402. Moreover, the second spring column 8 and the first spring column 501 are distributed on the same straight line along the length direction of the cover plate 401, and the two spring columns form a line contact on the cover plate 401 in the same straight line, making the sealing fit effect between the cover plate 401 and the discharge port better.

[0069] Embodiment 9

[0070] This embodiment discloses a direct multi-column blanking metering device applicable to a particle packaging machine. On the basis of any of the above embodiments, with reference to the attached Figures 1 - 3 specification, a stirring unit 3 for stirring granular materials is arranged above the material conveying unit 1. Specifically, the stirring unit 3 includes a stirring motor 301, a stirring cylinder 302, and stirring paddles 303 arranged in the stirring cylinder 302 and connected to the stirring motor 301. The stirring motor 301 is fixed on the frame. A discharge pipe 304 is arranged below the stirring cylinder 302, and a feed inlet is arranged above. The number of the discharge pipes 304 corresponds to the number of the blanking pipes 101, and the discharge pipes 304 and the blanking pipes 101 are connected through a hose. A feed hopper is docked above the feed inlet.

[0071] The feed hopper conveys the granular materials to be packaged into the stirring unit 3. After the stirring paddles 303 disperse the agglomerated granular materials, they are sent into the blanking pipes 101 through the lower discharge pipes 304 for blanking metering, ensuring that the fineness of the powder entering the blanking metering unit is uniform and improving the product packaging quality.

[0072] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention.

[0073] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arrangement", "installation", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0074] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A straight multi-row material metering device suitable for a granule packaging machine, characterized in that: The invention comprises a material conveying unit (1) arranged on a frame and a material discharge metering unit (2) arranged below the material conveying unit (1), wherein the material conveying unit (1) comprises a discharge pipe (101) and a discharge pipe horizontal driving assembly (102), and the discharge metering unit (2) comprises a measuring cup (202), a measuring cup vertical driving assembly (203) and a bearing platform (201) for blocking the discharge pipe (101), wherein the measuring cup (202) is slidably arranged on the bearing platform (201), and the measuring cup (202) and the side wall of the bearing platform (201) are enclosed to form a metering cavity; the discharge pipe horizontal driving assembly (102) drives the discharge pipe (101) to reciprocate linearly on the bearing platform (201), so that the discharge pipe (101) is connected with the metering cavity, and discharges the material from the measuring cup (202); and the measuring cup vertical driving assembly (203) drives the measuring cup (202) to reciprocate up and down, so as to adjust the volume of the metering cavity.

2. A straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 1, characterized in that: The feeding tube horizontal drive assembly (102) comprises a crank-connecting rod mechanism (1021), a horizontal drive plate (1022) and a horizontal drive servo motor (1023); the feeding tube (101) is mounted on the horizontal drive plate (1022); one end of the crank-connecting rod mechanism (1021) is connected to the horizontal drive servo motor (1023), and the other end is connected to the horizontal drive plate (1022).

3. A straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 1, characterized in that: The measuring cup vertical drive assembly (203) comprises a vertical drive plate (2031), a lead screw (2032) and a vertical drive pulley mechanism (2033); the vertical drive plate (2031) is sleeved on the lead screw (2032); two ends of the lead screw (2032) are respectively connected to the vertical drive pulley mechanism (2033) and a frame; and the measuring cup (202) is connected to the vertical drive plate (2031).

4. The straight-line multi-row material discharging metering device suitable for a granule packaging machine according to claim 1, characterized in that: The measuring cups (202) are symmetrically distributed on both sides of the supporting platform (201).

5. The straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 1, characterized in that: The number of the feed tubes (101) corresponds to the number of the measuring cups (202) on one side of the supporting platform (201).

6. The straight-line multi-row material discharging metering device suitable for a granule packaging machine according to claim 1, characterized in that: An opening and closing unit (4) for opening and closing the discharge port is provided at the bottom of the measuring cup (202), the opening and closing unit (4) comprising a cover plate (401) and a swing arm (402), one end of the cover plate (401) being rotatably connected to the swing arm (402), an elastic component (5) capable of generating elastic deformation being provided between the other end and the swing arm (402), the swing arm (402) being connected to a swing arm driving mechanism (6) for driving the swing arm (402) to rotate; the cover plate (401) rotates together with the swing arm (402) to open and close the discharge port of the measuring cup (202), and when the elastic component (5) undergoes elastic deformation, the cover plate (401) rotates relative to the swing arm (402) along with the elastic deformation of the elastic component (5), and is sealed and fitted with the discharge port of the measuring cup (202).

7. A straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 6, characterized in that: The elastic component (5) comprises a first spring column (501) and a first spring (502) sleeved on the first spring column (501); one end of the first spring column (501) is fixedly connected to the cover plate (401), and the other end is movably arranged in the waist-shaped hole (7) of the swing arm (402); one end of the first spring (502) abuts against the cover plate (401), and the other end abuts against the swing arm (402).

8. The straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 6, characterized in that: The rotation connection points of the elastic component (5), the cover plate (401) and the swing arm (402) are located on the same straight line along the length direction of the cover plate (401).

9. The straight-line multi-row material discharging metering device suitable for a granule packaging machine according to claim 6, characterized in that: The cover plate (401) is rotatably connected to the swing arm (402) via a second spring column (8), and a second spring (9) is sleeved on the second spring column (8).

10. The straight-line multi-row material discharging and metering device suitable for a granule packaging machine according to claim 1, characterized in that: A stirring unit (3) for stirring the granular material is arranged above the material conveying unit (1); the stirring unit (3) comprises a stirring motor (301), a stirring drum (302), and a stirring paddle (303) arranged in the stirring drum (302) and connected to the stirring motor (301); a discharge pipe connected to the discharge pipe (101) is arranged on the stirring drum (302); the number of the discharge pipes corresponds to the number of the discharge pipes (101).

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