A battery powder spreading device and method

Abstract

The application discloses a battery powder spreading device and method, the battery powder spreading device, including rack body, spreading mechanism, mould, jacking rotary mechanism, pre-pressing mechanism and mould jacking mechanism, the workbench is arranged on the rack body, the support frame is arranged on the workbench, the spreading mechanism is arranged on the workbench, the mould is arranged on the workbench, the jacking rotary mechanism and the mould jacking mechanism are arranged on the rack body, and the pre-pressing mechanism is arranged on the support frame.The battery powder spreading device of the application realizes the automatic high flatness spreading of high-precision quantitative thermal battery powder by the cooperation of the powder spreading mechanism, the jacking mechanism, the mould core rotary mechanism and the pre-pressing mechanism, and realizes the change from manual manufacturing to automatic manufacturing of thermal battery powder spreading.

Description

Technical Field

[0001] This invention belongs to the field of thermal battery powder preparation technology, and particularly relates to a battery powder leveling device and method. Background Technology

[0002] A thermal battery is a primary storage battery that uses molten salt as the electrolyte and is activated by melting it with its own heat source. It has advantages such as short activation time, wide operating temperature range, long storage period, and maintenance-free operation, and is increasingly widely used in weapon systems.

[0003] When the thermal battery is working, an external electrical signal or mechanical force is used to ignite the igniter inside the battery. The igniter's flame is guided to the heating element inside the battery through the ignition strip, so that the individual cells reach their operating temperature. The solid electrolyte, which is non-conductive at room temperature, is heated and melted into an ionic conductor. An electrochemical reaction occurs between the positive and negative electrodes, generating electrical energy.

[0004] Thermoelectric battery powder is the core component of thermoelectric batteries and the "source" of electrical energy. It mainly consists of heating elements and composite elements, which are formed by spreading out the corresponding powder and pressing them into shape under the action of a hydraulic press through a mold.

[0005] Currently, the heating element and composite sheet forming processes are all done manually, and the operating methods are as follows:

[0006] 1) Powder filling: The weighed powder is manually poured into the mold cavity.

[0007] 2) Spreading powder: The powder in the mold cavity is spread evenly by hand using a scraper.

[0008] 3) Pre-pressing: The upper mold core is manually placed into the mold cavity.

[0009] Thermal battery powder is a flammable material and is prone to spontaneous combustion during the manufacturing process. There is a high probability of combustion if it encounters sparks, static electricity, or other factors during the powder spreading process. Manually spreading the thermal battery powder poses a significant safety risk. Furthermore, manual spreading of thermal battery powder is inefficient, cannot effectively guarantee quality consistency, and fails to meet the quality and quantity requirements of thermal battery production.

[0010] Patent document with application number 202011056393X discloses a battery pack powder feeding machine. This machine performs powder filling, pressing, and metering processes before pressing the powder into the battery pack, allowing for more precise control of the amount of powder pressed into the battery pack. However, it lacks the function of leveling the battery powder electrodes. Summary of the Invention

[0011] To address the aforementioned technical problems, this invention provides a battery powder leveling device and method, which can solve the problems of low efficiency, low safety, and poor quality consistency in the battery powder leveling process.

[0012] The present invention is achieved through the following technical solutions.

[0013] The present invention provides a battery powder leveling device, comprising a frame body, a leveling mechanism, a mold, a lifting and rotating mechanism, a pre-pressing mechanism, and a mold lifting mechanism. A worktable is provided on the frame body, a support frame is provided on the worktable, the leveling mechanism is provided on the worktable, the mold is provided on the worktable, the lifting and rotating mechanism and the mold lifting mechanism are provided on the frame body, and the pre-pressing mechanism is provided on the support frame.

[0014] Preferably, the leveling mechanism includes a pressure plate, a scraper, a pressing mechanism, a hopper, and a double linear module. The pressure plate is disposed on the double linear module, the scraper, the pressing mechanism, and the hopper are disposed on the pressure plate, and the double linear module is disposed on the worktable.

[0015] Preferably, the lifting and rotating mechanism is located below the worktable. The lifting and rotating mechanism includes a lifting electric cylinder, a mounting bracket, a mounting lug A, and a rotary motor A. The lifting electric cylinder is connected to the worktable through the mounting bracket, and the rotary motor A is connected to the lifting electric cylinder through the mounting lug A.

[0016] Preferably, the pre-compression mechanism includes a linear module, a mounting lug B, a rotary motor B, a pressure regulating mechanism, and a pre-compression block. The linear module is connected to the rotary motor B via the mounting lug B, and the pressure regulating mechanism and the pre-compression block are mounted on the rotary motor B.

[0017] Preferably, the mold is disposed in the placement slot of the workbench, and the mold includes a mold cavity and a mold core, with the mold core disposed in the mold cavity.

[0018] Preferably, the mold lifting mechanism is located below the worktable. The mold lifting mechanism includes a lifting cylinder and a mold placement shaft. The lifting cylinder is located on the machine frame. One end of the mold placement shaft is connected to the lifting cylinder, and the other end of the mold placement shaft is connected to the mold.

[0019] Preferably, a slot is provided at one end of the mold core.

[0020] Preferably, the rotary motor A is provided with an adapter shaft, one end of which passes through the placement slot of the worktable, extends into the slot, and connects to the mold core.

[0021] Preferably, a compartment door is provided on the frame body.

[0022] A method of using a battery powder leveling device includes the following steps:

[0023] S1: Pour the battery powder into the hopper, start the battery powder leveling device, and the lifting cylinder starts to move. After the lifting cylinder moves to the point where the adapter shaft extends into the slot, the rotary motor A starts to drive the mold core to rotate. At the same time, the lifting cylinder moves upward until the top of the mold core is flush with the top of the mold cavity. The leveling mechanism starts to reciprocate. At the same time, the lifting and rotating mechanism cooperates with the leveling mechanism to gradually move downward. At this time, the battery powder in the hopper falls into the mold cavity until the battery powder in the mold cavity is leveled completely.

[0024] S2: After the above actions are completed, the leveling mechanism retracts, and the pre-pressing mechanism begins to move downward to pre-press the battery powder leveled in the mold cavity. After the pre-pressing is completed, the pre-pressing mechanism moves upward and retracts, and the mold lifting mechanism pushes the entire mold out of the placement slot of the worktable. The mold can then be transferred manually.

[0025] The beneficial effects of this invention are as follows:

[0026] The battery powder leveling device of this invention achieves high-precision quantitative automatic and highly flattened leveling of thermal battery powder through the coordinated operation of a powder leveling mechanism, a lifting mechanism, a mold core rotation mechanism, and a pre-pressing mechanism, transforming the manual manufacturing process of thermal battery powder leveling into an automated one. This device employs a fully automated method for leveling thermal battery powder electrodes, significantly reducing the number of operators and improving production efficiency. Furthermore, human-machine separation enhances the inherent safety of the enterprise. The device features high automation, high safety, and high production efficiency, meeting the mass production requirements of high-reliability thermal batteries and improving product quality consistency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the flattening mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the mold of the present invention;

[0030] Figure 4 This is a schematic diagram of the lifting and rotating mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the pre-compression mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the mold lifting mechanism of the present invention;

[0033] In the diagram: 1-Frame, 11-Workbench, 12-Support Frame, 13-Door, 2-Leveling Mechanism, 21-Pressure Plate, 22-Scraper, 23-Pressure Mechanism, 24-Hopper, 25-Double Linear Module, 3-Mold, 31-Mold Cavity, 32-Mold Core, 33-Slot, 4-Lifting and Rotating Mechanism, 41-Lifting Electric Cylinder, 42-Mounting Bracket, 43-Mounting Lug A, 44-Rotating Motor A, 45-Adapter Shaft, 5-Pre-Pressure Mechanism, 51-Linear Module, 52-Mounting Lug B, 53-Rotating Motor B, 54-Pressure Adjustment Mechanism, 55-Pre-Pressure Block, 6-Mold Lifting Mechanism, 61-Lifting Cylinder, 62-Mold Placement Shaft. Detailed Implementation

[0034] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0035] Example 1:

[0036] like Figures 1 to 6 As shown, a battery powder leveling device includes a frame body 1, a leveling mechanism 2, a mold 3, a lifting and rotating mechanism 4, a pre-pressing mechanism 5, and a mold lifting mechanism 6. A worktable 11 is provided on the frame body 1, and a support frame 12 is provided on the worktable 11. The leveling mechanism 2 is provided on the worktable 11, the mold 3 is provided on the worktable 11, the lifting and rotating mechanism 4 and the mold lifting mechanism 6 are provided on the frame body 1, and the pre-pressing mechanism 5 is provided on the support frame 12 and is positioned above the mold 3.

[0037] The leveling mechanism 2 includes a pressure plate 21, a scraper 22, a pressing mechanism 23, a hopper 24, and a dual linear module 25. The pressure plate 21 is mounted on the dual linear module 25, and the scraper 22, pressing mechanism 23, and hopper 24 are mounted on the pressure plate 21. The dual linear module 25 is mounted on the worktable 11. During the battery powder leveling process, the dual linear module 25 drives the pressure plate 21, scraper 22, pressing mechanism 23, and hopper 24 to reciprocate, thereby moving the battery powder (hot battery powder electrode) in the hopper 24 and causing the battery powder in the hopper 24 to fall into the mold 3, thus achieving the effect of leveling the battery powder. Specifically, the pressure plate 21 and pressing mechanism 23 keep the scraper 22 tightly against the surface of the mold 3, and the reciprocating motion of the scraper 22 levels the battery powder.

[0038] The lifting and rotating mechanism 4 is located below the worktable 11. The lifting and rotating mechanism 4 includes a lifting cylinder 41, a mounting bracket 42, mounting lugs A43, and a rotary motor A44. The lifting cylinder 41 is connected to the worktable 11 via the mounting bracket 42, and the rotary motor A44 is connected to the lifting cylinder 41 via the mounting lugs A43. During the battery powder leveling process, the lifting cylinder 41 moves upward from its lowest position, causing the rotary motor A44 to rise until the adapter shaft 45 connects to the mold core 32. Simultaneously, the rotary motor A44 rotates, driving the mold core 32 to rotate.

[0039] The pre-compression mechanism 5 includes a linear module 51, a mounting lug B52, a rotary motor B53, a pressure regulating mechanism 54, and a pre-compression block 55. The linear module 51 is connected to the rotary motor B53 via the mounting lug B52, and the pressure regulating mechanism 54 and the pre-compression block 55 are mounted on the rotary motor B53. After the battery powder is spread out, the linear module 51 drives the rotary motor B53 and the pre-compression block 55 to pre-compress the battery powder. The pre-compression block 55 applies corresponding pressure to the powder under the action of the pressure regulating mechanism 54.

[0040] The mold 3 is set in the placement slot of the workbench 11. The mold 3 includes a mold cavity 31 and a mold core 32, with the mold core 32 set inside the mold cavity 31. The mold cavity 31 and the mold core 32 are mating, and the mold core 32 can rotate and move vertically within the mold cavity 31.

[0041] The mold lifting mechanism 6 is located below the workbench 11. The mold lifting mechanism 6 includes a lifting cylinder 61 and a mold placement shaft 62. The lifting cylinder 61 is located on the machine frame 1. One end of the mold placement shaft 62 is connected to the lifting cylinder 61, and the other end of the mold placement shaft 62 is connected to the mold 3.

[0042] The mold core 32 is provided with a slot 33 at one end. The slot 33 is non-circular, which facilitates the adapter shaft 45 to drive the mold core 32 to rotate.

[0043] The rotary motor A44 is provided with an adapter shaft 45. The cross-sectional shape of the adapter shaft 45 corresponds to the cross-sectional shape of the slot 33. One end of the adapter shaft 45 passes through the placement slot of the worktable 11, penetrates the worktable 11, and extends into the slot 33 to slide and connect with the mold core 32.

[0044] The frame body 1 is equipped with a door 13, which facilitates the inspection and maintenance of the lifting and rotating mechanism 4 and the mold lifting mechanism 6 when opened. Baffles are provided around the frame body 1 to protect the lifting and rotating mechanism 4 and the mold lifting mechanism 6.

[0045] A method of using a battery powder leveling device includes the following steps:

[0046] S1: Pour the battery powder into the hopper 24, start the battery powder leveling device, and the lifting cylinder 41 starts to move. After the lifting cylinder 41 moves to the point where the adapter shaft 45 extends into the slot 33, the rotary motor A44 starts to drive the mold core 32 to rotate. At the same time, the lifting cylinder 41 moves upward until the top of the mold core 32 is flush with the top of the mold cavity 31. The leveling mechanism 2 starts to reciprocate. At the same time, the lifting and rotating mechanism 4 moves downward in coordination with the leveling mechanism 2. At this time, the battery powder in the hopper 24 falls into the mold cavity 31. During the process of the lifting and rotating mechanism 4 moving downward, the leveling mechanism 2 will level the battery powder on the mold core 32 with each reciprocating motion until the battery powder in the mold cavity 31 is completely leveled. At this time, the space freed up by the top of the mold core 32 in the mold cavity 31 is larger than the volume of the battery powder, which facilitates the subsequent pre-pressing step.

[0047] S2: After the above actions are completed, the flattening mechanism 2 retracts to a position that does not obstruct the downward movement of the pre-pressing mechanism 5. The pre-pressing mechanism 5 begins to move downward to pre-press the battery powder flattened in the mold cavity 31. After the pre-pressing is completed, the pre-pressing mechanism 5 moves upward and retracts. The mold lifting mechanism 6 pushes the entire mold 3 out of the placement slot of the worktable 11. The mold 3 can then be manually transferred to the powder electrode pressing process.

Claims

1. A battery powder spreading device, characterized by: The utility model relates to a kind of moulding machine, including rack body (1), flattening mechanism (2), mould (3), jacking rotary mechanism (4), pre-pressing mechanism (5) and mould jacking mechanism (6), rack body (1) is provided with workbench (11), support frame (12) is provided on workbench (11), flattening mechanism (2) is arranged on workbench (11), mould (3) is arranged on workbench (11), jacking rotary mechanism (4) and mould jacking mechanism (6) are arranged on rack body (1), pre-pressing mechanism (5) is arranged on support frame (12); Jacking rotary mechanism (4) is arranged below workbench (11), and jacking rotary mechanism (4) includes jacking electric cylinder (41), mounting bracket (42), mounting lug A (43) and rotary motor A (44), jacking electric cylinder (41) is connected with workbench (11) by mounting bracket (42), and rotary motor A (44) is connected with jacking electric cylinder (41) by mounting lug A (43); Mould (3) is arranged in the placing groove of workbench (11), and mould (3) includes mould cavity (31) and mould core (32), and mould core (32) is arranged in mould cavity (31); Mould jacking mechanism (6) is arranged below workbench (11), and mould jacking mechanism (6) includes jacking pneumatic cylinder (61) and mould placing shaft (62), jacking pneumatic cylinder (61) is arranged on rack body (1), one end of mould placing shaft (62) is connected with jacking pneumatic cylinder (61), and the other end of mould placing shaft (62) is connected with mould (3); Flattening mechanism (2) includes pressing plate (21), scraper (22), pressing mechanism (23), hopper (24) and double linear module (25), pressing plate (21) is arranged on double linear module (25), scraper (22), pressing mechanism (23) and hopper (24) are arranged on pressing plate (21), and double linear module (25) is arranged on workbench (11); Pre-pressing mechanism (5) includes linear module (51), mounting lug B (52), rotary motor B (53), pressure adjusting mechanism (54) and pre-pressing block (55), linear module (51) is connected with rotary motor B (53) by mounting lug B (52), pressure adjusting mechanism (54) and pre-pressing block (55) are arranged on rotary motor B (53).

2. A battery powder spreading device as claimed in claim 1, characterized in that: One end of mould core (32) is provided with clamping groove (33).

3. A battery powder spreading device as claimed in claim 1, characterized in that: Rotary motor A (44) is provided with adapter shaft (45), and one end of adapter shaft (45) penetrates workbench (11) through the placing groove of workbench (11) and then extends into clamping groove (33) and is connected with mould core (32).

4. A battery powder spreading device as claimed in claim 1, characterized in that: Door (13) is provided on rack body (1).

5. A method of using a battery powder spreading device according to any one of claims 1-4, characterized in that, Including the following steps: S1: the battery powder is poured into the hopper (24), the battery powder flattening device is started, the lifting cylinder (41) starts to move, after the lifting cylinder (41) moves to the extension shaft (45) into the clamping groove (33), the rotating motor A (44) starts to drive the mold core (32) to rotate, at the same time, the lifting cylinder (41) moves upward until the top of the mold core (32) is flush with the top of the mold cavity (31), the flattening mechanism (2) starts to reciprocate, at the same time, the lifting and rotating mechanism (4) cooperates with the flattening mechanism (2) to gradually move downward, at this time, the battery powder in the hopper (24) falls into the mold cavity (31), until the battery powder in the mold cavity (31) is completely flattened; S2: after the above actions are completed, the flattening mechanism (2) retreats, the pre-pressing mechanism (5) starts to move downward to pre-press the flattened battery powder in the mold cavity (31), after the pre-pressing is completed, the pre-pressing mechanism (5) moves upward to retreat, the mold lifting mechanism (6) lifts the entire mold (3) out of the placement groove of the workbench (11), the mold (3) is manually transferred.

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