A feeding device for a kiln

Abstract

This utility model provides a feeding device for kilns, relating to the field of kiln technology. It includes a conveyor frame with several conveying rollers mounted on its upper end. A sagger is placed on the upper end of each conveying roller. A support is mounted on one outer end of the conveyor frame, and a storage hopper is installed on the upper inner end of the support. A discharge pipe is installed through the lower inner end of the storage hopper, with the discharge pipe and the sagger overlapping vertically. An auxiliary mechanism is installed between the discharge pipe and the conveyor frame. In this utility model, the contact between a vibrator and the sagger generates continuous vibration during the feeding process, dispersing the granular or powdery material falling into the sagger. This eliminates local height differences caused by gravity accumulation, ensuring uniform material distribution within the sagger and fundamentally preventing uneven heating during sintering due to uneven material thickness.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, and more specifically, to a feeding device for kilns. Background Technology

[0002] In the production process of lithium batteries, the positive electrode material is often sintered in a kiln. For example, the application with application number "CN201320632338.X" proposes an automatic weighing and feeding device for saggers in an electronic kiln production line. The electronic kiln production line includes an automatic sagger conveying mechanism, which consists of a pair of sagger conveying rollers, a pivot support beam, and a set of sagger conveying rollers. The automatic weighing and feeding mechanism includes a frame, which includes a pair of front and rear side columns and a top seal. Plate, upper bracket and lower bracket; storage hopper, fixed on the top sealing plate of the frame; automatic conveying mechanism, located on the upper bracket and connected to the storage hopper; the upper part of the weighing hopper is connected to the automatic conveying mechanism, and the lower part is connected to the weighing hopper discharge control mechanism, the weighing hopper discharge control mechanism is located on the weighing sensor, and the weighing sensor is fixed on the lower bracket; a pair of sagger clamping mechanisms are located on a pair of sagger conveyor roller pivot support beams; a pair of sagger travel limiting mechanisms are located on the support beam support connecting frame;

[0003] However, in the above technical solutions, when the material falls from the storage hopper into the sagger through the weighing hopper, it is easy to form a local height difference due to gravity accumulation. Especially for granular or powdered cathode materials, this may lead to uneven heating during sintering and affect the performance consistency of lithium battery cathode materials. Therefore, we propose a feeding device for kilns to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a feeding device for kilns, which solves the problem that when materials fall from the storage hopper into the sagger through the weighing hopper, local height differences are easily formed due to gravity accumulation. This is especially true for granular or powdered cathode materials, which may lead to uneven heating during sintering and affect the performance consistency of lithium battery cathode materials.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A feeding device for a kiln includes a conveyor frame, with a plurality of conveyor rollers mounted on the upper end of the conveyor frame. A sagger is placed on the upper end of each conveyor roller. A support is mounted on one outer end of the conveyor frame, and a storage hopper is mounted on the upper inner end of the support. A discharge pipe is installed through the lower inner end of the storage hopper, with the discharge pipe and the sagger overlapping vertically. An auxiliary mechanism is installed between the discharge pipe and the conveyor frame. The auxiliary mechanism includes a pressure plate, which is mounted on the lower end of the storage hopper, with the lower end of the discharge pipe penetrating through the interior of the pressure plate. The pressure plate and the sagger overlap vertically, and a mounting is installed on the lower surface of the pressure plate. There are several fixed rods, which are movably located inside the sagger. A movable block is movably installed at the lower end of the conveyor frame. A groove is provided in the middle of the upper surface of the movable block. A slider is movably installed at both the front and rear ends of the groove. An extension block is installed at the upper end of each slider. The extension block is movably located between the conveyor rollers. An L-shaped clamp is installed at the upper end of each extension block. The ends of the L-shaped clamps that are close to each other are in contact with the sagger. A groove is provided at the upper end of each L-shaped clamp and on the side close to the sagger. A vibrator is installed inside the groove and is in contact with the sagger.

[0007] Preferably, a valve is installed at the upper end of the discharge pipe.

[0008] Preferably, a buffer ring is installed on the lower surface of the pressure plate, and the buffer ring overlaps with the crucible vertically.

[0009] Preferably, a cylinder is bolted to the lower end of the conveyor frame, and the output end of the cylinder is movably installed inside the lower end of the conveyor frame, and the output end of the cylinder is connected to the movable block.

[0010] Preferably, guide rods are installed at both ends of the slide groove, and the rods of the guide rods are movably installed inside the slide block. A positive and negative lead screw is movably installed in the middle of the slide groove, and the rods of the positive and negative lead screws are respectively threaded and installed inside the slide block. A motor is installed at the front end of the slide groove, and the output end of the motor is movably located inside the slide groove and connected to the positive and negative lead screws.

[0011] Preferably, a base plate is installed on the upper end of each extension block, and a buffer pad is installed on the upper end of each base plate. The buffer pad is in contact with the lower surface of the L-shaped clamp, and several bolts are threadedly installed between the base plate, the buffer pad, and the L-shaped clamp.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, the vibration is generated during the feeding process by the fit between the vibrator and the sagger, which causes the granular or powdery material falling into the sagger to be dispersed by vibration, eliminating the local height difference caused by gravity accumulation, ensuring that the material is evenly distributed in the sagger, and avoiding the difference in heating caused by uneven material thickness during sintering from the root.

[0014] (2) In this utility model, the fixing rod on the lower surface of the pressure plate is inserted into the material in the sagger, forming regular holes inside the material. On the one hand, it breaks the compact structure of the material accumulation, and on the other hand, it provides a more uniform heat conduction path for the subsequent sintering process, further improving the problem of uneven heating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a feeding device for a kiln according to the present invention;

[0016] Figure 2 This is a front view structural diagram of a feeding device for a kiln according to the present invention;

[0017] Figure 3 This is a side view of a feeding device for a kiln according to the present invention.

[0018] Figure 4 This utility model relates to a feeding device for kilns. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 5 This utility model relates to a feeding device for kilns. Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 6 This utility model relates to a feeding device for kilns. Figure 4 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Conveyor frame; 2. Conveyor roller; 3. Sagger; 4. Support; 5. Storage hopper; 6. Discharge pipe; 7. Auxiliary mechanism; 701. Pressure plate; 702. Buffer ring; 703. Fixed rod; 704. Movable block; 705. Cylinder; 706. Slide groove; 707. Guide rod; 708. Positive and negative lead screw; 709. Slider; 710. Motor; 711. Extension block; 712. Base plate; 713. Buffer pad; 714. L-shaped clamp; 715. Groove; 716. Vibrator. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 6 As shown in the figure, this utility model embodiment proposes a feeding device for a kiln, including a conveyor frame 1. Several conveyor rollers 2 are installed on the upper end of the conveyor frame 1. A sagger 3 is placed on the upper end of each conveyor roller 2. A support 4 is installed on one outer end of the conveyor frame 1. A storage hopper 5 is installed on the upper inner end of the support 4. A discharge pipe 6 is installed through the lower inner end of the storage hopper 5, and the discharge pipe 6 and the sagger 3 overlap vertically. An auxiliary mechanism 7 is installed between the discharge pipe 6 and the conveyor frame 1. The auxiliary mechanism 7 includes a pressure plate 701, which is installed on the lower end of the storage hopper 5. The lower end of the discharge pipe 6 is installed through the interior of the pressure plate 701, and the pressure plate 701 and the sagger 3 overlap vertically. Several fixing rods are installed on the lower surface of the pressure plate 701. 703, and the fixed rod 703 is movably located inside the sagger 3. The lower end of the conveyor frame 1 is movably installed with a movable block 704. The upper surface of the movable block 704 is provided with a groove 706 in the middle. The front and rear ends of the groove 706 are respectively movably installed with sliders 709. The upper ends of the sliders 709 are respectively installed with extension blocks 711. The extension blocks 711 are movably located between the conveyor rollers 2. The upper ends of the extension blocks 711 are respectively installed with L-shaped clamps 714. The ends of the L-shaped clamps 714 that are close to each other are in contact with the sagger 3. The upper end of the L-shaped clamps 714 and the side close to the sagger 3 are respectively provided with grooves 715. The grooves 715 are respectively installed with vibrators 716. The vibrators 716 are in contact with the sagger 3.

[0024] like Figures 4 to 6As shown, in another embodiment of this utility model, a valve is installed at the upper end of the discharge pipe 6, a buffer ring 702 is installed on the lower surface of the pressure plate 701, the buffer ring 702 overlaps with the crucible 3, a cylinder 705 is bolted to the lower end of the conveyor frame 1, the output end of the cylinder 705 is movably installed inside the lower end of the conveyor frame 1, and the output end of the cylinder 705 is connected to the movable block 704, guide rods 707 are respectively installed at both ends of the inside of the slide groove 706, the rods of the guide rods 707 are movably installed inside the slider 709, and the middle of the slide groove 706 is movable. A forward and reverse lead screw 708 is installed. The rod body of the forward and reverse lead screw 708 is threaded and inserted into the inside of the slider 709. A motor 710 is installed at the front end of the inside of the slide groove 706. The output end of the motor 710 is located inside the slide groove 706 and is connected to the forward and reverse lead screw 708. A base plate 712 is installed on the upper end of the extension block 711. A buffer pad 713 is installed on the upper end of the base plate 712. The buffer pad 713 is in contact with the lower surface of the L-shaped clamping plate 714. Several bolts are threadedly installed between the base plate 712, the buffer pad 713 and the L-shaped clamping plate 714.

[0025] The crucible 3 is placed on the conveyor roller 2 and moved along the conveyor frame 1 by the conveyor roller 2. When the crucible 3 moves directly below the storage hopper 5, the conveyor roller 2 stops rotating. Then, the motor 710 drives the positive and negative lead screw 708 to rotate. The positive and negative lead screw 708 drives the sliders 709 on both sides to move relative to each other through the thread. Then, the sliders 709 drive the extension block 711 to move, so that the extension block 711 drives the L-shaped clamping plate 714 to clamp and position the lower end of the crucible 3. After the crucible 3 is clamped, the cylinder 705 pushes the movable block 704 and the L-shaped clamping plate 714 to move upward, so that the crucible 3 is in contact with the buffer ring 702 on the lower surface of the pressure plate 701, and the fixing rod 703 is located inside the crucible 3. Then, the material in the storage hopper 5 is discharged downward through the discharge pipe 6. The valve at the upper end of the discharge pipe 6 can control the discharge speed and flow rate of the material. Then, the material in the groove 715... The installed vibrator 716 is started, generating continuous vibration. The vibration is transmitted to the sagger 3 through the contact between the vibrator 716 and the sagger 3, causing the granular or powdery material inside the sagger 3 to be dispersed by vibration. After the material is evenly distributed, the vibrator 716 stops working, the valve closes again, and then the cylinder 705 drives the movable block 704 to move downward, causing the movable block 704 to move the L-shaped clamp 714 and the sagger 3 downward, so that the sagger 3 is once again in contact with the conveying roller 2. Then the motor 710 drives the positive and negative screw 708 to reverse, so that the positive and negative screw 708 controls the slider 709 to move in the opposite direction, so that the slider 709 drives the L-shaped clamp 714 and the sagger 3 to separate. Then the conveying roller 2 starts again, conveying the sagger 3 filled with uniform material to the kiln for sintering. At the same time, the new sagger 3 enters the storage hopper 5 below, starting the next round of feeding process.

[0026] The motor 710 drives the positive and negative lead screws 708 to move the slider 709, thereby achieving precise positioning and clamping of the L-shaped clamp 714. This ensures that the sagger 3 will not move during subsequent operations, laying the foundation for uniform material distribution. Then, the L-shaped clamp 714 fixes the sagger 3 to prevent it from shaking during the feeding process, ensuring the positional accuracy of the material when it falls into the sagger 3 and preventing the material from spilling out.

[0027] The buffer ring 702 fits into the sagger 3, reducing the impact and wear between the pressure plate 701 and the sagger 3, and protecting the sagger 3 and equipment components;

[0028] The fixing rod 703 is inserted into the material, which on the one hand breaks the compact structure of the material and disperses the material initially, and on the other hand forms regular holes inside the material, providing a more uniform heat conduction path for the subsequent sintering process and improving the problem of uneven heating.

[0029] The vibration generated by the vibrator 716 disperses the material, eliminates local height differences caused by gravity accumulation, ensures that the material is evenly distributed in the sagger 3, avoids the heating difference caused by uneven material thickness during sintering from the root, and improves the consistency of the performance of lithium battery cathode material.

[0030] When the vibrator 716 is working, the buffer pad 713 can absorb part of the vibration energy transmitted by the L-shaped clamp 714, preventing the vibration from acting directly on the extension block 711 and the base plate 712, reducing the loosening or damage of parts caused by vibration, and extending the service life of the equipment.

[0031] The pressure plate 701 is installed at the lower end of the storage hopper 5, and the lower end of the discharge pipe 6 passes through it, overlapping with the crucible 3 vertically. This ensures that the material discharged from the discharge pipe 6 can fall accurately into the crucible 3, playing a role in positioning and guiding the material and reducing material spillage.

[0032] The working principle of a feeding device for kilns:

[0033] In use, the crucible 3 is first placed on the conveyor roller 2, which moves it along the conveyor frame 1. When the crucible 3 moves directly below the storage hopper 5, the conveyor roller 2 stops rotating. Then, the motor 710 drives the positive and negative lead screw 708 to rotate. The positive and negative lead screw 708 drives the sliders 709 on both sides to move relative to each other through the thread. Then, the sliders 709 drive the extension block 711 to move, so that the extension block 711 drives the L-shaped clamping plate 714 to clamp and position the lower end of the crucible 3. After the crucible 3 is clamped, the cylinder 705 pushes the movable block 704 and the L-shaped clamping plate 714 to move upward, so that the crucible 3 is in contact with the buffer ring 702 on the lower surface of the pressure plate 701, and the fixing rod 703 is located inside the crucible 3. Then, the material in the storage hopper 5 is discharged downward through the discharge pipe 6. The valve at the upper end of the discharge pipe 6 can control the discharge speed and flow rate of the material. Then, the groove 7 The vibrator 716 installed inside the 15 is activated, generating continuous vibration. The vibration is transmitted to the sagger 3 through the contact between the vibrator 716 and the sagger 3, causing the granular or powdery material inside the sagger 3 to be dispersed by vibration. After the material is evenly distributed, the vibrator 716 stops working, the valve closes again, and then the cylinder 705 drives the movable block 704 to move downward, causing the movable block 704 to move the L-shaped clamp 714 and the sagger 3 downward, so that the sagger 3 is once again in contact with the conveying roller 2. Then the motor 710 drives the positive and negative lead screw 708 to reverse, so that the positive and negative lead screw 708 controls the slider 709 to move in the opposite direction, so that the slider 709 drives the L-shaped clamp 714 and the sagger 3 to separate. Then the conveying roller 2 is activated again, conveying the sagger 3 filled with uniform material to the kiln for sintering. At the same time, a new sagger 3 enters below the storage hopper 5 to start the next round of feeding process.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A feeding device for a kiln, comprising a conveyor frame (1), characterized in that: Several conveying rollers (2) are installed on the upper end of the conveying frame (1). A sagger (3) is placed on the upper end of the conveying rollers (2). A bracket (4) is installed on one side of the outer end of the conveying frame (1). A storage hopper (5) is installed on the upper inside of the bracket (4). A discharge pipe (6) is installed through the lower inside of the storage hopper (5). The discharge pipe (6) and the sagger (3) overlap vertically. An auxiliary mechanism (7) is installed between the discharge pipe (6) and the conveying frame (1). The auxiliary mechanism (7) includes a pressure plate (701). The pressure plate (701) is installed on the lower end of the storage hopper (5). The lower end of the discharge pipe (6) is installed through the inside of the pressure plate (701). The pressure plate (701) and the sagger (3) overlap vertically. Several fixing rods (703) are installed on the lower surface of the pressure plate (701). The fixing rods (703) are movable. The movable block (704) is movably installed inside the sagger (3) and the lower end of the conveyor frame (1). The upper surface of the movable block (704) is provided with a groove (706) in the middle. The front and rear ends of the groove (706) are respectively movably installed with sliders (709). The upper ends of the sliders (709) are respectively installed with extension blocks (711). The extension blocks (711) are movably located between the conveyor rollers (2). The upper ends of the extension blocks (711) are respectively installed with L-shaped clamps (714). The ends of the L-shaped clamps (714) that are close to each other are in contact with the sagger (3). The upper end of the L-shaped clamps (714) and the side close to the sagger (3) are respectively provided with grooves (715). The inside of the grooves (715) are respectively installed with vibrators (716). The vibrators (716) are in contact with the sagger (3).

2. The feeding device for a kiln according to claim 1, characterized in that: A valve is installed at the upper end of the discharge pipe (6).

3. The feeding device for a kiln according to claim 1, characterized in that: A buffer ring (702) is installed on the lower surface of the pressure plate (701), and the buffer ring (702) overlaps with the sagger (3) vertically.

4. A feeding device for a kiln according to claim 1, characterized in that: A cylinder (705) is bolted to the lower end of the conveyor frame (1). The output end of the cylinder (705) is movably installed inside the lower end of the conveyor frame (1), and the output end of the cylinder (705) is connected to the movable block (704).

5. A feeding device for a kiln according to claim 1, characterized in that: Guide rods (707) are installed at both ends of the slide groove (706). The rods of the guide rods (707) are movably installed inside the slider (709). A positive and negative lead screw (708) is movably installed in the middle of the slide groove (706). The rods of the positive and negative lead screw (708) are threaded and installed inside the slider (709). A motor (710) is installed at the front end of the slide groove (706). The output end of the motor (710) is movably located inside the slide groove (706) and connected to the positive and negative lead screw (708).

6. A feeding device for a kiln according to claim 1, characterized in that: The upper end of the extension block (711) is respectively equipped with a base plate (712), and the upper end of the base plate (712) is respectively equipped with a buffer pad (713). The buffer pad (713) is in contact with the lower surface of the L-shaped clamp (714). Several bolts are threadedly installed between the base plate (712), the buffer pad (713) and the L-shaped clamp (714).

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