Transferring and conveying system for graphitized crucible

Abstract

The utility model discloses a graphitized crucible transferring and conveying system, and belongs to the technical field of cathode material graphitization. Comprising a conveying mechanism used for conveying a crucible, a driving mechanism, a telescopic device and a pressure supply device, and the telescopic device and the pressure supply device are connected through a pipeline and form a closed circulation loop; the transferring mechanism is arranged between the driving mechanism and the conveying mechanism, and a crucible to be transferred is placed on the transferring mechanism; in the working state, the telescopic device reciprocates above the transfer mechanism, and the crucible to be transferred is pushed to the conveying mechanism. The transfer device is simple in structure and high in transfer speed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of graphitization technology of negative electrode materials, and more specifically, relates to a graphitization crucible transfer and conveying system. Background Technology

[0002] With the rise of the new energy industry, the demand for battery anode materials is increasing daily, and artificial graphite accounts for a large proportion of anode materials. In the production process of artificial graphite anode materials, the efficiency of the transfer and conveying of graphitization crucibles affects the production progress and resource consumption of graphitization. Currently, the market mostly uses gantry cranes or overhead cranes with wire ropes for unloading and transferring crucibles, which is cumbersome, time-consuming, inefficient, and consumes manpower and overhead crane or crane resources.

[0003] On January 2, 2024, the applicant published application number 202321930209.9, entitled "An Automatic Loading and Unloading System for Graphitization Crucibles." The system includes a crucible unloading mechanism and a crucible loading mechanism. Both the unloading and loading mechanisms include a pallet conveying roller conveyor and a crucible conveying roller conveyor arranged perpendicularly to each other, and the unloading and loading mechanisms share a single crucible conveying roller conveyor. The pallet conveying roller conveyor is equipped with a chain lift, which is located on the same horizontal line as the crucible conveying roller conveyor. The chain lift is used to separate and combine pallets and crucibles, realizing the transfer of pallets, crucibles, and pallet-crucible assemblies between the pallet conveying roller conveyor and the crucible conveying roller conveyor. However, the system has several shortcomings: ① It includes three sections of crucible tray roller conveyor and motor, which increases the cost; ② The chain lifting mechanism has a high failure rate, and the transmission gear is easily affected by the high and low limits of the lifting mechanism, causing the lifting transmission gear to break frequently; ③ The crucible tray has high process requirements, requiring reserved lifting process holes, which increases the manufacturing cost; ④ The forklift needs a large space to lift the crucible, and forklift working space must be reserved on both sides.

[0004] Therefore, in order to improve service life and reduce costs, it is urgent to develop a graphitized crucible transfer and conveying system. Utility Model Content

[0005] 1. The problem to be solved

[0006] This invention provides a graphitized crucible transfer and conveying system, the purpose of which is to improve the efficiency of graphitized crucible transfer and conveying.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0009] A graphitization crucible transfer and conveying system includes a conveying mechanism for conveying the crucible, and further includes:

[0010] The drive mechanism includes a telescopic device and a pressure supply device, which are connected by a pipe and form a closed loop.

[0011] A transfer mechanism is located between the drive mechanism and the conveying mechanism, and is used to place the crucible to be transferred.

[0012] In operation, the telescopic device reciprocates above the transfer mechanism to push the crucible to be transferred onto the conveying mechanism.

[0013] As one possible embodiment of this utility model, the end of the telescopic device is connected to a push plate, and at least one arc-shaped groove is opened on the push plate for contacting the side of the crucible to be transferred.

[0014] In one possible embodiment of this utility model, the telescopic device is a hydraulic cylinder, and the pressure supply device inputs hydraulic oil into the telescopic device.

[0015] As one possible embodiment of this utility model, a reversing valve is provided at the output end of the pressure supply device.

[0016] In one possible embodiment of this utility model, the working surface of the transfer mechanism is higher than the working surface of the conveying mechanism, and the distance between the transfer mechanism and the conveying mechanism is less than the radius of the crucible.

[0017] In one possible embodiment of this utility model, the telescopic device is electrically connected to a displacement sensor to monitor the displacement of the telescopic device during reciprocating motion.

[0018] As one possible implementation of this utility model, the transfer mechanism is provided with at least 2a first photoelectric switches, where a is a positive integer, for monitoring whether a crucible exists in the transfer mechanism.

[0019] As one possible implementation of this utility model, the conveying mechanism includes a waiting area, on which at least 2b second photoelectric switches are provided, where b is a positive integer, to monitor whether a crucible exists in the waiting area.

[0020] As one possible implementation of this utility model, at least 2c third photoelectric switches are provided outside the waiting area of ​​the conveying mechanism, where c is a positive integer, to monitor whether the crucible on the waiting area has been transported.

[0021] As one possible implementation of this utility model, it also includes a controller and a touch screen. The pressure supply device, the reversing valve, the displacement sensor, the first photoelectric switch, the second photoelectric switch, and the third photoelectric switch are respectively electrically connected to the controller. The touch screen is used to display the system operating parameters.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) The driving mechanism of the graphitization crucible transfer and conveying system of this utility model adopts hydraulic extrusion, without motor-driven extrusion, which eliminates the motor overload failure that causes the system to stop, and at the same time has better flexibility, protecting the crucible to the greatest extent.

[0025] (2) The driving mechanism of the graphitization crucible transfer and conveying system of this utility model adopts the hydraulic push rod method, which eliminates the mechanical transmission mechanism and fundamentally eliminates the wear of the mechanical transmission mechanism;

[0026] (3) The graphitization crucible transfer and conveying system of this utility model adopts the method of intelligent identification of crucible position by controller to automatically transfer and convey crucible, eliminating manual operation, improving production safety, and improving the efficiency of unloading graphitization crucible from the transfer mechanism. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the first structure of the graphitization crucible transfer and conveying system in the embodiment;

[0028] Figure 2 This is a schematic diagram of the second structure of the graphitization crucible transfer and conveying system in the embodiment;

[0029] Figure 3 This is a schematic diagram of the control system for the graphitization crucible transfer and conveying system in the embodiment;

[0030] In the diagram: 1. Drive mechanism; 11. Telescopic device; 111. Push plate; 12. Pressure supply device; 121. Reversing valve; 2. Transfer mechanism; 21. First photoelectric switch; 3. Conveying mechanism; 31. Transfer area; 32. Second photoelectric switch; 33. Third photoelectric switch; 4. Displacement sensor; 5. Controller; 6. Touch screen. Detailed Implementation

[0031] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] The present invention will be further described below with reference to the embodiments.

[0034] Example

[0035] Combination Figure 1 and Figure 2 As shown, this embodiment of a graphitization crucible transfer and conveying system includes a drive mechanism 1, a transfer mechanism 2, and a conveying mechanism 3 arranged in sequence. The drive mechanism 1 can be a hydraulic cylinder. In this embodiment, an oil pump motor drives the extrusion, eliminating the risk of system shutdown due to motor overload failure. This also provides better flexibility and maximizes crucible protection. The drive mechanism 1 includes a telescopic device 11 and a pressure supply device 12, connected by a pipeline to form a closed loop. In this embodiment, the telescopic device 11 is a hydraulic push rod telescopic device (Hefei Junqi Hydraulics, pressure power unit). The push rod of the hydraulic push rod telescopic device contacts the outer wall of the crucible, continuously and progressively moving the crucible onto the conveying mechanism 3. The pressure supply device 12 is a hydraulic oil station (Hefei Junqi Hydraulics, hydraulic cylinder), used to deliver hydraulic oil to the hydraulic push rod telescopic device through hydraulic pipelines. The crucible to be transferred is placed on the transfer mechanism 2, ensuring that the direction of transfer of the crucible is consistent with the telescopic direction of the telescopic device 11. The conveying mechanism 3 is a roller conveyor line for the transferred crucibles, used to transport the crucibles to various working functional areas. In the working state, the telescopic device 11 contacts and pushes the outer wall of the crucible to be transferred, thereby controlling the translation position of the graphitization crucible, that is, from the transfer mechanism 2 to the conveying mechanism 3, realizing the loading and unloading of the crucible.

[0036] Excessive circuit control can easily lead to malfunctions and affect system operation. Therefore, this application aims to minimize the circuit control load. A reversing valve 121 is installed at the output end of the pressure supply device 12, i.e., on the hydraulic oil output pipeline of the hydraulic oil station. In this embodiment, a reversing solenoid valve (Hefei Junqi Hydraulics) is used to change the oil inlet and outlet direction of the oil pipe to realize the extension and retraction movement of the push rod of the hydraulic push rod extension device. By simply adjusting the opening size of the reversing solenoid valve, the push speed of the push rod of the hydraulic push rod extension device can be controlled by controlling the flow rate of the hydraulic oil.

[0037] To prevent asynchronous speeds when transferring more than two crucibles at a time, a push plate 111 is fixedly connected to the end of the push rod of the hydraulic push rod telescopic device. The push plate 111 has at least one arc-shaped groove, the shape and size of which are designed to fit the side of the crucible to be transferred. The number of arc-shaped grooves on the push plate 111 equals the number of crucibles transferred at a time. In this embodiment, two crucibles are transferred at a time, hence two arc-shaped grooves are provided. Furthermore, to prevent excessive impact on the crucibles due to excessively high push rod speed, a buffer layer, such as a rubber layer, is provided on the surface of the arc-shaped grooves to reduce the impact of the pushing force on the crucibles.

[0038] Of course, in order to ensure that the crucible is smoothly pushed from the transfer mechanism 2 to the conveying mechanism 3, the working surface of the transfer mechanism 2 is higher than the working surface of the conveying mechanism 3, and the distance between the transfer mechanism 2 and the conveying mechanism 3 is less than the radius of the crucible.

[0039] In practice, the telescopic device 11 is electrically connected to the displacement sensor 4 (Tianmu Sensor, NS-WY02 series) to monitor the telescopic stroke of the telescopic device 11 during reciprocating motion, that is, to detect the distance the crucible moves.

[0040] Furthermore, to achieve intelligent crucible transfer, multiple sets of photoelectric switches are installed at appropriate locations to determine whether a crucible exists at that location and to send commands to initiate crucible transfer. Specifically:

[0041] The transfer mechanism 2 is equipped with at least 2a first through-beam photoelectric switches 21 (Omron through-beam photoelectric switch E3JK-TR12-C), where a is a positive integer, to monitor whether there are crucibles in the transfer mechanism 2. In this embodiment, the transfer mechanism 2 is square, so the first through-beam photoelectric switches are respectively set at the four corners of the transfer mechanism 2 to monitor whether there are enough crucibles to be transferred on the transfer mechanism 2. This is recorded as signal A.

[0042] The conveying mechanism 3 includes a waiting area 31, which can hold a number of crucibles for one transfer. At least 2b second through-beam photoelectric switches 32 (Omron through-beam photoelectric switch E3JK-TR12-C) are set on the waiting area 31, where b is a positive integer. These switches are used to monitor whether there are crucibles in the waiting area 31, i.e., to monitor whether the crucibles have been transferred to the waiting area 31. This signal is recorded as signal B.

[0043] At least 2c third through-beam photoelectric switches 33 (Omron through-beam photoelectric switches E3JK-TR12-C) are set outside the waiting area 31 of the conveying mechanism 3, where c is a positive integer. They are used to monitor whether the crucibles on the waiting area 31 are transported by the conveying mechanism 3 to leave the waiting area 31. If the position of the third through-beam photoelectric switch 33 is detected to have passed N crucibles, where N is the number of crucibles transferred at one time, and N is 2 in this embodiment, this is recorded as signal C.

[0044] To achieve system intelligence, such as Figure 3As shown, the graphitization crucible transfer and conveying system also includes a controller 5 and a touch screen 6. The pressure supply device 12, reversing valve 121, displacement sensor 4, first through-beam photoelectric switch 21, second through-beam photoelectric switch 32, and third through-beam photoelectric switch 33 are electrically connected to the controller 5. The touch screen 6 (Kunlun Tongtai TPC1570Gi) is used to display system operating parameters. Specifically, this embodiment uses a PLC controller (Siemens 6ES7214-1AG40-0XB0). Based on the signals from the first through-beam photoelectric switch 21, second through-beam photoelectric switch 32, and third through-beam photoelectric switch 33, it determines whether to activate the pressure supply device 12 to start the system transfer of the crucible. The reversing valve 121 adjusts the flow rate of the oil circuit through the controller 5 to adjust the pushing speed of the telescopic device 11. The controller 5 controls the displacement sensor 4 to detect the extension stroke of the telescopic device 11. The touch screen 6 is used to record, view, and set parameters. It can set the flow rate of oil supplied by the pressure supply device 12, the opening size of the reversing valve 121, the displacement of the telescopic device 11 measured by the displacement sensor 4, and the monitoring results of each photoelectric switch. At the same time, the touch screen 6 can display the operating speed, operating status, and actual position of the telescopic device 11, as well as the operating status of the pressure supply device 12.

[0045] The specific usage process of the graphitization crucible transfer and conveying system in this embodiment is as follows:

[0046] S1: The touch screen 6 sets the displacement distance of the crucible to be transferred on the transfer mechanism 2 to the waiting area 31 of the conveying mechanism 3, the zero point of the telescopic device 11 is greater than the safety distance of 150mm, and the safe distance for the retraction of the telescopic device 11 is greater than the radius of the crucible; the platform of the transfer mechanism 2 is at least 10~30mm higher than the roller conveyor of the waiting area 31, and the horizontal distance between the two is less than the radius of the crucible.

[0047] S2: When the crucible is placed on the platform of the transfer mechanism 2, the first pair of photoelectric switches 21 detects the signal and delays for 15 seconds to ensure that the crucible is placed stably on the transfer mechanism 2. The time can be set by the touch screen 6. At the same time, the monitoring signal B of the second pair of photoelectric switches 32 is received, that is, the signal that there is no crucible on the waiting area 31 of the conveying mechanism 3. The start command is automatically sent to the drive mechanism 1.

[0048] S3: When the drive mechanism 1 receives the start command, the pressure supply device 12 opens and adjusts the opening size of the reversing valve 121, and begins to arrange the telescopic device 11 to push the first row of crucibles on the transfer mechanism 2 to the target position at an appropriate pushing speed to move the four crucibles forward horizontally.

[0049] S4: When the second photoelectric switch 32 detects that the telescopic device 11 pushes the first row of crucibles to the set target position - the waiting area 31, it stops moving forward and sends a command to the roller conveyor line of the conveying mechanism 3 that the crucibles have reached the target position, that is, the conveying mechanism 3 starts to transport forward.

[0050] S5: When the third pair of photoelectric switches 33 detects the signal of the two crucibles passing through, and the second pair of photoelectric switches 32 does not detect the presence of the crucible, a request for crucible removal signal is sent to the controller 5. After the conditions are met, the drive mechanism 1 will transport the crucible to the waiting area 31 again.

[0051] S6: After receiving the request to put the crucible in, the telescopic device 11 continues to push the remaining row of crucibles on the transfer mechanism 2 to the set target position, and then the push rod of the telescopic device 11 begins to retract to the initial position;

[0052] S7: After the telescopic device 11 returns to the zero position, it starts to standby. After the conditions for crucible transfer are met on the transfer mechanism 2, the above steps are repeated to realize the intelligent cycle unloading and transfer process.

[0053] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A graphitization crucible transfer conveying system comprising a conveying mechanism (3) for conveying crucibles, characterized in that: Also includes: The drive mechanism (1) includes a telescopic device (11) and a pressure supply device (12), which are connected by a pipe and form a closed loop. The transfer mechanism (2) is located between the drive mechanism (1) and the conveying mechanism (3), and is used to place the crucible to be transferred. In operation, the telescopic device (11) reciprocates above the transfer mechanism (2) to push the crucible to be transferred onto the conveying mechanism (3).

2. A graphitized crucible transfer and delivery system as defined in claim 1, wherein: The end of the telescopic device (11) is connected to a push plate (111), and at least one arc-shaped groove is opened on the push plate (111) for contacting the side of the crucible to be transferred.

3. The graphitization crucible transfer and conveying system according to claim 1, characterized in that: The telescopic device (11) is a hydraulic cylinder, and the pressure supply device (12) inputs hydraulic oil into the telescopic device (11).

4. The graphitization crucible transfer and conveying system according to claim 3, characterized in that: A reversing valve (121) is provided at the output end of the pressure supply device (12).

5. A graphitization crucible transfer and conveying system according to any one of claims 1 to 4, characterized in that: The working surface of the transfer mechanism (2) is higher than the working surface of the conveying mechanism (3), and the distance between the transfer mechanism (2) and the conveying mechanism (3) is less than the radius of the crucible.

6. The graphitization crucible transfer and conveying system according to claim 5, characterized in that: The telescopic device (11) is electrically connected to the displacement sensor (4) to monitor the displacement of the telescopic device (11) during reciprocating motion.

7. The graphitization crucible transfer and conveying system according to claim 6, characterized in that: The transfer mechanism (2) is equipped with at least 2a first photoelectric switches (21), where a is a positive integer, for monitoring whether a crucible exists in the transfer mechanism (2).

8. The graphitization crucible transfer and conveying system according to claim 7, characterized in that: The conveying mechanism (3) includes a transfer area (31), on which at least 2b second photoelectric switches (32) are provided, where b is a positive integer, to monitor whether a crucible exists in the transfer area (31).

9. The graphitization crucible transfer and conveying system according to claim 8, characterized in that: At least 2c third photoelectric switches (33) are set outside the waiting area (31) of the conveying mechanism (3), where c is a positive integer, to monitor whether the crucible on the waiting area (31) has been transported.

10. The graphitization crucible transfer and conveying system according to claim 9, characterized in that: It also includes a controller (5) and a touch screen (6). The pressure supply device (12), the reversing valve (121), the displacement sensor (4), the first photoelectric switch (21), the second photoelectric switch (32), and the third photoelectric switch (33) are electrically connected to the controller (5) respectively. The touch screen (6) is used to display the system operating parameters.

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