A micro-dosing packaging system for multiple additives

Abstract

The present invention discloses a system for packaging a variety of trace additives, including a conveying mechanism, a loading barrel, and a plurality of metering devices arranged in sequence along the conveying direction of the conveying mechanism; the conveying mechanism is provided with a plurality of loading stations suitable for placing the loading barrels. The metering device quantitatively releases additives to the loading barrels, and a lifting mechanism is arranged directly below each of the metering devices, and the lifting mechanism is suitable for driving the loading barrels upwards towards the metering device. The present invention can automatically and accurately measure a variety of trace additives and then package them, which can meet the unified and rapid processing of multiple production lines in the production system, ensure the consistency of product quality, and improve production efficiency. It is suitable for situations where there are multiple production lines in a workshop and the number of trace additives is large.

Description

Technical Field

[0001] The invention relates to the technical field of micro-dosing packaging, and in particular to a micro-dosing packaging system for multiple additives, which is mainly used in production lines for positive and negative electrode materials of lithium batteries. Background Art

[0002] In the production lines of lithium battery positive and negative electrode materials, trace amounts of additives are required according to process requirements, and there are dozens of additives. In actual production, each additive is often weighed manually and added to the mixing equipment several times. This has shortcomings such as low efficiency and human operational errors. As a core process step in production, it is in urgent need of improvement. Summary of the invention

[0003] In order to solve the technical problems of low efficiency and human operating errors in the prior art of micro-weighing process of multiple additives, which is often done by weighing each additive and then adding it into a mixing device for multiple times, the present invention provides a micro-metering packaging system for multiple additives to solve the above problems.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a micro-metering packaging system for multiple additives, including a conveying mechanism, a loading barrel and a plurality of metering devices arranged in sequence along the conveying direction of the conveying mechanism; the conveying mechanism has a plurality of loading stations suitable for placing the loading barrel.

[0005] The metering device quantitatively releases the additive to the loading barrel, and a lifting mechanism is arranged directly below each of the metering devices, and the lifting mechanism is suitable for driving the loading barrel upward to approach the metering device.

[0006] Furthermore, the metering device includes a silo, a screw feeder and a weighing sensor, the inlet of the screw feeder is connected to the outlet of the silo, and the weighing sensor is fixed on the silo and is used to weigh the change in the additive in the silo.

[0007] Furthermore, each of the loading stations is provided with a tray suitable for placing a loading barrel.

[0008] Furthermore, the lifting mechanism is fixed below the conveying mechanism; the tray includes a bottom plate and side plates extending upward from the bottom plate, the bottom plate is provided with an opening, and the lifting mechanism lifts the loading barrel through the opening.

[0009] Furthermore, the conveying mechanism includes a machine base, a transmission assembly fixed on the machine base, a transmission chain and a plurality of rollers fixed to the transmission chain. The transmission assembly drives the transmission chain to move along the transmission direction. A photoelectric sensor is fixed on the machine base directly below each of the metering devices. The photoelectric sensor is electrically connected to the controller. When the loading station moves to the metering device, the photoelectric sensor sends a feeding signal.

[0010] Preferably, the lifting mechanism is a lifting cylinder.

[0011] Furthermore, the extended end of the lifting mechanism is also connected to a weighing scale.

[0012] Preferably, a capping station and a barrel loading station are respectively provided at the front end and the rear end of the conveying mechanism.

[0013] Furthermore, a clamping assembly suitable for clamping the pallet is fixed on the conveying mechanism, and the clamping assembly is located below the metering device and is arranged in a one-to-one correspondence with the metering device.

[0014] Furthermore, the clamping assembly includes clamping cylinders fixed to both sides of the conveying mechanism and clamping plates fixed to the protruding ends of the clamping cylinders, and the movement directions of the two clamping plates are perpendicular to the conveying direction of the conveying mechanism.

[0015] The beneficial effects of the present invention are:

[0016] The multiple additives micro-dosing packaging system of the present invention automates and refines the micro-dosing of multiple additives, and can automatically and accurately measure multiple trace additives for packaging, which can meet the unified and rapid processing of multiple production lines in the production system, ensure the consistency of product quality, and improve production efficiency. It is suitable for multiple production lines in a workshop with a large number of trace additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 : is a schematic diagram of the structure of the micro-dosage packaging system for multiple additives of the present invention (the conveying mechanism is partially omitted, and the direction indicated by the arrow is the conveying direction of the conveying mechanism);

[0019] Figure 2 It is an enlarged schematic diagram of the loading station in the present invention;

[0020] Figure 3 is a top view of a specific embodiment of the tray of the present invention;

[0021] Figure 4 is a front view of a specific embodiment of the tray of the present invention;

[0022] Figure 5 1 is a top view of the micro-dosing packaging system for multiple additives according to the present invention (the dosing device is not shown).

[0023] In the figure, 1. conveying mechanism, 101. machine base, 102. transmission assembly, 103. transmission chain, 104. roller, 2. loading barrel, 3. metering device, 301. silo, 302. screw feeder, 303. weighing sensor, 4. loading station, 5. lifting mechanism, 6. photoelectric sensor, 7. tray, 701. bottom plate, 702. side plate, 703. opening, 8. weighing scale, 9. capping station, 10. barrel loading station, 11. clamping assembly, 1101. clamping cylinder, 1102. clamping plate, 12. controller, 13. frame. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] like Figure 1-Figure 5 As shown, a multi-additive micro-dosing packaging system comprises a conveying mechanism 1, a loading barrel 2, and a plurality of metering devices 3 arranged in sequence along the conveying direction of the conveying mechanism 1; the conveying mechanism 1 is provided with a plurality of loading stations 4 suitable for placing the loading barrel 2. The metering device 3 quantitatively releases the additive to the upper barrel 2, and a lifting mechanism 5 is arranged directly below each metering device 3, and the lifting mechanism 5 is suitable for driving the loading barrel 2 upward to approach the metering device 3.

[0026] Different additives are stored in each metering device 3. The conveying mechanism 1 is used to convey the loading barrel 2 in a directional manner so that the loading barrel 2 moves in a straight line. When the loading barrel 2 moves to the metering device 3, the lifting mechanism 5 is used to lift the loading barrel 2 so that the barrel mouth of the loading barrel 2 is connected with the outlet of the metering device 3. The metering device 3 releases the additive to the upper barrel 2. The number of metering devices 3 depends on the type of additive. The loading station 4 refers to a station for placing the loading barrel 2. The loading stations 4 are arranged equidistantly on the conveying mechanism 1. The positions of the loading stations 4 can be divided artificially. For example, marks are drawn on the conveying mechanism 1 at a certain interval, and the loading barrel 2 is placed at the marked position. The present invention makes the packaging process more refined and automated. Compared with manual weighing, the process is simple, the processing efficiency is high, and the weighing accuracy can also be greatly improved.

[0027] The metering device 3 may adopt but is not limited to the following structures: Figure 2As shown, it includes a silo 301, a screw feeder 302 and a weighing sensor 303. The inlet of the screw feeder 302 is connected to the outlet of the silo 301. The weighing sensor 303 is fixed on the silo 301 and is used to weigh the change in the amount of additives in the silo 301. Figure 1 and Figure 2 As shown, the metering device 3 is provided with five, five silos 301 are fixed together on the frame 13, and the silo 301 can adopt a weight-reducing weighing silo 301, that is, the amount of feeding is determined by the weight reduction of the silo 301. Regarding the high-precision weighing silo 301, the company has applied for relevant patents, which can be directly applied here, for example, the weighing silo 301 component in the patent with patent number CN201921437893.0 and the name "a high-precision weighing and feeding mechanism". The spiral feeder 302 can further ensure uniform feeding on the basis of the high-precision silo 301. As a preferred embodiment, the spiral feeder 302 can adopt a double spiral feeder 302, and the feeding gap is stable, which can ensure stable feeding with high precision.

[0028] In a further design, the inner wall of the silo 301 is sprayed with a Teflon coating to effectively prevent the material from being blocked. In addition, a servo or variable frequency motor is used to drive the screw feeder 302, and the screw speed is reduced at the end of setting the feeding amount to further ensure the feeding accuracy.

[0029] The conveying mechanism 1 can be a chain conveyor or a belt conveyor. In a specific embodiment of the present invention, Figure 1 and Figure 5As shown, the conveying mechanism 1 includes a base 101, a transmission assembly 102 fixed on the base 101, a transmission chain 103 and a plurality of rollers 104 fixed to the transmission chain 103. The transmission assembly 102 drives the transmission chain 103 to move along the transmission direction. A photoelectric sensor 6 is fixed on the base 101 located directly below each metering device 3. The photoelectric sensor 6 is electrically connected to the controller 12. When the loading station 4 moves to the metering device 3, the photoelectric sensor 6 sends a feeding signal. The base 101 is used to support the transmission assembly 102 and the roller 104, and at the same time provide a conveying platform for the loading barrel 2. The transmission assembly 102 generally includes a transmission motor and a gear set. The transmission chain 103 is meshed with the gear set and driven by the transmission motor. The conveying platform of the base 101 is a hollow structure. The roller 104 is horizontally placed on the conveying platform of the base 101 to support the loading barrel 2. In order to achieve cyclic conveying, the transmission chain 103 is preferably a closed ring transmission. The photoelectric sensor 6 is used to monitor the position of the loading barrel 2. The two contacts of the photoelectric sensor 6 are respectively installed on both sides of the machine base 101. When there is no loading barrel 2 directly below the metering device 3, the photoelectric sensor 6 can sense the signal of the opposite contact. When the loading barrel 2 moves to the bottom of the metering device 3, between the two contacts of the loading barrel 2, the photoelectric sensor 6 sends a disconnect signal to the controller 12, and the controller 12 controls the metering device 3 to add material.

[0030] Since the roller 104 is a columnar structure, during the transmission process, the loading bucket 2 needs to contact with at least two rollers 104 at the same time, and each roller 104 may have a height deviation or rotate around the central column during operation, which may easily cause the loading bucket to tilt or even detach from the roller 104. Therefore, in a specific embodiment of the present invention, as shown in FIG. Figure 2 and Figure 5 As shown, each loading station 4 is provided with a tray 7 suitable for placing the loading barrel 2. The tray 7 can cover the bottom of the loading barrel 2, and at the same time, the staff can accurately grasp the position of placing the loading barrel 2. The tray 7 can be mounted on the base 101. When the roller 104 under the tray 7 moves to the front end and is about to rotate to the bottom, the tray 7 can be removed to prevent the tray 7 from affecting the circular transmission of the transmission chain 103. When the loading station 4 runs to the top again, the tray 7 and the loading barrel 2 are placed according to the mounting position of the tray 7 on the base 101, and the cyclic loading continues.

[0031] The lifting mechanism 5 can be located above the conveying mechanism 1. At this time, it is necessary to clamp the loading barrel 2 from the side and then lift the loading barrel 2. The lateral clamping and lifting actions need to be started separately. When the number of metering devices 3 is large, the processing efficiency will be greatly reduced. As a preferred embodiment, Figure 3-Figure 5As shown, the lifting mechanism 5 is fixed below the conveying mechanism 1, and the tray 7 includes a bottom plate 701 and a side plate 702 extending upward from the bottom plate 701. The bottom plate 701 is provided with an opening 703, and the lifting mechanism 5 lifts the loading barrel 2 through the opening 703. At this time, only one action of lifting the loading barrel 2 upward is required. The lifting mechanism 5 will not occupy the lateral space of the loading station 4, and the distance between adjacent metering devices 3 can be arranged more compactly, reducing the contact time between the additive and the air.

[0032] Preferably, the lifting mechanism 5 is a lifting cylinder. To ensure accurate feeding, the extended end of the lifting mechanism 5 is also connected to a weighing scale 8, which is used to re-weigh the feeding barrel 2 after feeding. If the re-weighed data does not meet the requirements, the controller 12 will send an alarm signal.

[0033] Usually, the front end and the rear end of the conveying mechanism 1 are respectively provided with a capping station 9 and a barrel loading station 10. That is, at least one loading station 4 is reserved between the front end and the metering device 3 and between the rear end and the metering device 3 in the conveying direction of the conveying mechanism 1, which are used to cap and place the loading barrel 2, respectively. These two steps can be completed manually or by machine.

[0034] According to the installation method of the above-mentioned pallet 7, it can be seen that the pallet 7 is movably connected to the frame 13. When the loading barrel 2 is lifted, the pallet 7 may be separated from the loading station 4, and the loading barrel 2 cannot be reset to the pallet 7. For this reason, in a further design, a clamping assembly 11 suitable for clamping the pallet 7 is also fixed on the conveying mechanism 1. The clamping assembly 11 is located below the metering device 3 and is arranged one-to-one with the metering device 3. When the loading barrel 2 moves to the bottom of the metering device 3, the clamping assembly 11 clamps the pallet 7, and the lifting mechanism 5 lifts the loading barrel 2 at the same time. The clamping and lifting actions can be performed simultaneously without affecting the processing efficiency.

[0035] The clamping assembly 11 may adopt but is not limited to the following structures: Figure 5 As shown, it includes clamping cylinders 1101 fixed on both sides of the conveying mechanism 1 and clamping plates 1102 fixed to the extended ends of the clamping cylinders 1101, and the movement direction of the two clamping plates 1102 is perpendicular to the conveying direction of the conveying mechanism 1. As shown in the figure, the tray 7 is located at the symmetric center of the frame 13, the clamping plates 1102 are used to increase the contact area between the clamping assembly 11 and the tray 7, and the two clamping cylinders 1101 are symmetrically arranged on both sides of the frame 13. When clamping, the two clamping cylinders 1101 move synchronously to make the tray 7 evenly stressed and avoid displacement of the tray 7.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0038] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0039] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A micro-dosing packaging system for multiple additives, characterized by: It comprises a conveying mechanism (1), a loading bucket (2), and a plurality of metering devices (3) arranged in sequence along the conveying direction of the conveying mechanism (1); the conveying mechanism (1) is provided with a plurality of loading stations (4) suitable for placing the loading bucket (2); The metering device (3) releases the additive quantitatively to the loading barrel (2), and a lifting mechanism (5) is arranged directly below each metering device (3), and the lifting mechanism (5) is suitable for driving the loading barrel (2) upward to approach the metering device (3); The metering device (3) comprises a silo (301), a screw feeder (302) and a weighing sensor (303); the inlet of the screw feeder (302) is connected to the outlet of the silo (301); the weighing sensor (303) is fixed on the silo (301) and is used to weigh the change in the amount of additive in the silo (301); the conveying mechanism (1) comprises a machine base (101), a transmission assembly (102) fixed on the machine base (101), a transmission chain (103) and a plurality of rollers (104) fixed to the transmission chain (103); the transmission assembly (102) drives the transmission chain (103) to move along a transmission direction; a photoelectric sensor (6) is fixed on the machine base (101) directly below each metering device (3); the photoelectric sensor (6) is electrically connected to a controller (12); when a feeding station (4) moves to the metering device (3), the photoelectric sensor (6) sends a feeding signal.

2. The micro-dosing packaging system for multiple additives according to claim 1, characterized in that: Each of the loading stations (4) is provided with a tray (7) suitable for placing a loading barrel (2).

3. The micro-dosing packaging system for multiple additives according to claim 2, characterized in that: The lifting mechanism (5) is fixed below the conveying mechanism (1); The tray (7) comprises a bottom plate (701) and a side plate (702) extending upward from the bottom plate (701); an opening (703) is provided on the bottom plate (701); and the lifting mechanism (5) lifts the loading barrel (2) through the opening (703).

4. The micro-dosing packaging system for multiple additives according to claim 1, characterized in that: The lifting mechanism (5) is a lifting cylinder.

5. The micro-dosing packaging system for multiple additives according to claim 4, characterized in that: The extended end of the lifting mechanism (5) is also connected to a weighing scale (8).

6. The micro-dosing packaging system for multiple additives according to claim 1, characterized in that: The front end and the rear end of the conveying mechanism (1) are respectively provided with a capping station (9) and a barrel loading station (10).

7. The micro-dosing packaging system for multiple additives according to claim 3, characterized in that: A clamping assembly (11) suitable for clamping the tray (7) is also fixed on the conveying mechanism (1); the clamping assembly (11) is located below the metering device (3) and is arranged in a one-to-one correspondence with the metering device (3).

8. The micro-dosing packaging system for multiple additives according to claim 7, characterized in that: The clamping assembly (11) comprises a clamping cylinder (1101) fixed to both sides of the conveying mechanism (1) and a clamping plate (1102) fixed to the protruding end of the clamping cylinder (1101), and the movement direction of the two clamping plates (1102) is perpendicular to the conveying direction of the conveying mechanism (1).

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