Sagger charging and compacting device

Abstract

The utility model discloses a sagger loading and compacting device which comprises a spiral feeder, a sagger used for loading materials discharged by the spiral feeder, and a pressing plate matched with the sagger in shape, and the pressing plate is provided with a shaft sleeve communicated with an inner cavity of a stock bin. A discharging channel which extends in the length direction of the shaft sleeve and is used for containing the spiral discharging device is formed in the shaft sleeve, and the discharging channel extends to the bottom end of the pressing plate to form a discharging opening used for discharging. The saggar is provided with a first driving unit for driving the saggar to move forwards and feed towards the pressing plate and / or the pressing plate is provided with a second driving unit for driving the pressing plate to move forwards and feed towards the saggar, so that the pressing plate relatively extends into the saggar to compact materials loaded in the saggar; the reset speed of the first driving unit / the second driving unit when the saggar / the pressing plate is driven to reset reversely is smaller than the discharging speed of the spiral discharging device; therefore, the materials are compacted in the sagger filling process, the materials are loaded in the sagger as much as possible, and the sagger filling quantity of the sagger is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a sagger charging and compacting device. Background Art

[0002] Lithium batteries are the representative of modern high-performance batteries. During the production and preparation of lithium batteries, various materials used to prepare lithium battery electrodes need to be mixed and fed into the sagger, and then sent to the kiln for sintering; the microstructure and impurities of the materials are changed through high-temperature sintering operations so that the prepared lithium battery can obtain excellent electrochemical properties and structural stability. However, most of the materials used to prepare lithium battery electrodes are light in weight, and they are easy to disperse during the filling process of the sagger, and inevitably a lot of air will be incorporated to make the materials loose. The stacking density of the materials in the sagger is small and the space occupied is large, resulting in the sagger filling amount not meeting production requirements. Therefore, it is crucial to effectively compact the materials in the sagger and increase the sagger filling amount. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a sagger charging compacting device, which can compact the material loaded in the sagger during the sagger filling process, so as to load as much material as possible in a sagger with a certain volume and increase the filling amount of the sagger.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a sagger loading and compacting device, comprising a spiral feeder, a sagger for loading materials discharged from the spiral feeder, and a pressing plate adapted to the shape of the sagger, wherein the pressing plate has an axial sleeve connected to the inner cavity of the silo, and a feeding channel extending along its length direction and for placing the spiral feeder is formed in the axial sleeve, and the feeding channel extends to the bottom end of the pressing plate to form a feeding port for feeding; the sagger is equipped with a first driving unit driving it to move forward in the direction of the pressing plate and / or the pressing plate is equipped with a second driving unit driving it to move forward in the direction of the sagger and feed, so that the pressing plate is relatively extended into the sagger to compact the material loaded in the sagger; and the resetting speed of the first driving unit / the second driving unit when driving the sagger / the pressing plate to reset in the opposite direction is less than the feeding speed of the spiral feeder.

[0005] Furthermore, it also includes a conveying channel for the sagger to receive and convey.

[0006] Furthermore, a stopper is provided on at least one side of the conveying channel in the conveying direction, which can partially block the conveying channel to prevent the movement of the sagger.

[0007] Furthermore, a clamp is provided on both sides of the conveying direction of the conveying channel, and the two clamps respectively clamp and press on the opposite sides of the sagger to clamp and fix the sagger and drive the sagger to align with the pressing plate in the vertical direction.

[0008] Furthermore, the spiral feeder includes a feeding screw and a rotating unit for driving the feeding screw to rotate.

[0009] Furthermore, the feeding screw is formed with a diameter-reducing section whose rod diameter gradually decreases toward the feeding port.

[0010] Furthermore, at least one edge section is formed at the edge of the upper end surface of the pressing plate, and the outer side surface of each edge section gradually slopes downward toward the outside along the length or width direction of the pressing plate to form a stop slope.

[0011] Furthermore, at least one air hole connected to the material discharge channel is formed on the outer peripheral surface of the shaft sleeve, and a preset degassing device acts on the air hole.

[0012] The utility model adopts the above-mentioned scheme, and its beneficial effect lies in that the material discharge amount is controlled by the spiral feeder, thereby realizing accurate quantitative loading; through the compaction action coordinated between the pressing plate and the sagger, the diameter change of the feeding screw and the air hole degassing design, the stacking density of the material loaded in the sagger is increased, and as much material as possible is loaded in a sagger of a certain volume, thereby greatly improving the filling capacity of the sagger; at the same time, it can also reduce dust and avoid dust pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a sagger charging and compacting device in this embodiment.

[0014] Figure 2 Schematic diagram of the internal structure of the sagger charging and compacting device in this embodiment.

[0015] Figure 3 It is a schematic diagram of the structure of the silo in this embodiment.

[0016] Figure 4 Schematic diagram of the structure of the stirring shaft and the feeding screw in this embodiment.

[0017] Figure 5 It is a schematic diagram of the coordination between the conveying channel and the sagger in this embodiment.

[0018] Figure 6 It is a schematic diagram of the coordination of the conveying channel, sagger, stopper and clamp in this embodiment.

[0019] Figure 7 It is a schematic diagram of the coordination of the conveying channel, sagger and silo in this embodiment.

[0020] Figure 8 Schematic diagram of the cooperation between the pressing plate and the sagger in this embodiment.

[0021] Fig. 9Schematic diagram of the reset state of the sagger in this embodiment.

[0022] Fig.10 This is a state diagram of implementation mode 2 in this embodiment.

[0023] Among them, 1-pressing plate, 11-shaft sleeve, 111-air hole, 12-edge, 121-stop slope, 2-sagger, 3-bin, 31-feeding channel, 32-feeding port, 4-screw feeder, 41-feeding screw, 411-screw shaft, 412-screw blade, 413-reducing section, 5-first drive unit, 6-second drive unit, 7-conveying channel, 71-conveying roller, 8-stopper, 9-clamp, 10-stirring shaft, 12-stirring motor. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention is described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0025] To facilitate understanding by those skilled in the art, Figure 1 The schematic diagram of the shell structure of the sagger 2 charging and compacting device is used to express the description; Figure 3 and 8 The following is a partial perspective drawing for illustration. Figure 3 and 8 The dashed line in the middle shows the perspective part; Figure 5 , 8 The arrows in 9 indicate the moving direction of the sagger 2. Fig.10 The middle arrow indicates the moving direction of the pressing plate 1.

[0026] Refer to the attached Figure 1 To Attachment Figure 4As shown, in this embodiment, a sagger loading and compacting device comprises a silo 3 storing materials, a spiral feeder 4 for discharging materials stored in the silo 3, a sagger 2 for loading materials discharged by the spiral feeder 4, and a pressing plate 1 for compacting the materials loaded in the sagger 2; wherein the sagger 2 is in a square box shape, and the pressing plate 1 is a square plate that is adapted to the shape of the upper end surface of the sagger 2 and is slightly smaller in size so as to relatively extend into the sagger 2 for compacting. Furthermore, since the size of the pressing plate 1 is slightly smaller than the sagger 2, material dust will escape from the fitting gap between the pressing plate 1 and the sagger 2 during the compaction action, generating dust to pollute the environment; therefore, at least one edge 12 made of soft material (such as soft rubber) is formed at the edge of the upper end surface of the pressing plate 1 (and in the present embodiment, in order to ensure the anti-dust effect, a section of edge 12 is formed on all four edges of the upper end surface of the pressing plate 1), and the outer side surface of each section of the edge 12 gradually tilts downward toward the outside along the length or width direction of the pressing plate 1 to form a stop slope 121. When the pressing plate 1 extends relatively into the sagger 2 to compact the material, the stop slope 121 can fill and cover the fitting gap between the two, so that the dust generated by the compaction action cannot pass through the fitting gap between the two, thereby playing an anti-dust effect.

[0027] Specifically, the inner cavity of the silo 3 and the pressing plate 1 are connected through the hollow shaft sleeve 11. Since the material stored in the inner cavity of the silo 3 will fall into the hollow inner cavity of the shaft sleeve 11 under the action of gravity, the inner cavity of the shaft sleeve 11 is extended along its length direction to form a certain inner cavity as a material discharge channel 31; the spiral feeder 4 is placed vertically in the material discharge channel 31, and the material discharge channel 31 extends to the bottom end of the pressing plate 1 to form a material discharge port 32 for material discharge (that is, the material discharge port 32 is set on the bottom end surface of the pressing plate 1). More specifically, the material stored in the silo 3 falls into the material discharge channel 31 under the action of gravity, and the spiral feeder 4 is started to start rotating. The thrust generated by the rotation of the spiral feeder 4 can push the material in the material discharge channel 31 out of the material discharge port 32, thereby realizing the material discharge operation. Among them, the spiral feeder 4 in this embodiment includes a feeding screw 41 and a rotating unit for driving the feeding screw 41 to rotate; the feeding screw 41 is composed of a spiral shaft 411 and spiral blades 412 spirally distributed on the shaft body of the spiral shaft 411. The pitch of the spiral shaft 411 and the radius of the spiral blades 412 are set according to actual production needs, but the pitch of the spiral shaft 411 and the radius of the spiral blades 412 are gradually reduced toward the discharge port 32 to form a variable diameter section 413 with a gradually decreasing rod diameter, so that the material is squeezed by the feeding screw 41 during discharge and mechanical spiral variable diameter compaction is realized, thereby increasing the density of the discharged material and making the discharge amount per unit time larger.

[0028] In addition, in this embodiment, a stirring shaft 10 for mixing and stirring materials is connected and fixed above the feeding screw 41, and the stirring shaft 10 is controlled by the stirring motor 12; when the stirring motor 12 drives the stirring shaft 10 to rotate, it synchronously drives the feeding screw 41 to rotate, so the stirring motor 12 and the stirring shaft 10 can be used as a rotating unit to drive the feeding screw 41. Secondly, the stirring motor 12 adopts a servo motor, which is driven by the servo motor to accurately control the rotation of the spiral shaft 411, and the spiral blade 412 rotates with the rotation of the spiral shaft 411, and the material located around the spiral blade 412 is rotated and pushed out of the discharge port 32. Since the amount of material pushed out by each rotation of the feeding screw 41 is constant, accurate quantitative discharge is achieved; at the same time, the speed of the feeding rotating screw can be controlled by controlling the speed of the stirring motor 12, and then the discharge speed can be controlled, so that the discharge speed can be adjusted to the production rhythm of the production line.

[0029] Furthermore, in order to increase the amount of material discharged per unit time, at least one air hole 111 connected to the material discharge channel 31 is formed on the outer peripheral surface of the shaft sleeve 11, and the air hole 111 is used for degassing by a preset degassing device; when the degassing device starts to operate, a negative pressure environment is formed in the degassing device, and the gas between the materials in the material discharge channel 31 flows to the degassing device through the air hole 111 under the action of atmospheric pressure, achieving a degassing effect, thereby reducing the distance between the material particles and increasing the material density, so that more material is discharged into the sagger 2 per unit time and more is loaded into the sagger; at the same time, it can also effectively reduce the generation of dust. Furthermore, the degassing device also has a blowing function. When the degassing device starts the reverse blowing operation, the degassing device sends a small amount of gas into the inner cavity of the degassing device through the air hole to disperse and blow away the materials accumulated on the inner wall of the material discharge channel 31 to avoid blockage.

[0030] Since the sagger 2 usually needs to be placed opposite the discharge port 32 to facilitate the loading of the material discharged from the spiral feeder 4; in the present embodiment, the sagger 2 is provided with a conveying channel 7 for conveying it to the bottom of the pressing plate 1, and the conveying channel 7 is composed of a plurality of conveying rollers 71 arranged and extending directionally in the sagger 2 charging and compacting device (but it should be noted here that the conveying method of the sagger 2 includes but is not limited to this form and can be replaced by a corresponding conveying mechanism, which is not limited here); when the sagger 2 without material is delivered to the sagger charging and compacting device, the conveying rollers 71 in the conveying channel 7 cooperate to transmit and convey the sagger 2 to the bottom of the pressing plate 1.

[0031] Secondly, in order to achieve accurate positioning of the sagger 2 during the conveying process, a stopper 8 is provided on at least one side of the conveying direction of the conveying channel 7, which can partially block the conveying channel 7 to prevent the movement of the sagger 2; and the stopper 8 is arranged near and directly below the pressing plate 1. When the sagger 2 is conveyed to this place, the stopper 8 partially extends into the conveying channel 7 to block the conveying channel 7. At this time, the sagger 2 touches the stopper 8 and then stops and limits the position, so that the sagger 2 stops accurately below the pressing plate 1; wherein, the stopper 8 in this embodiment uses a blocking cylinder, and the working principle of the blocking cylinder belongs to conventional technical means, which will not be elaborated here. In addition, a clamp 9 is provided on both sides of the conveying direction of the conveying channel 7. When the sagger 2 is conveyed thereto, the two clamps 9 respectively clamp and press on the opposite sides of the sagger 2 to clamp and fix the sagger 2 and at the same time drive the sagger 2 to move in the front and rear directions to fine-tune the position of the sagger 2 so that the sagger 2 is opposite to the pressing plate 1 in the vertical direction (that is, the sagger 2 is aligned with the pressing plate 1 in the vertical direction); wherein, the clamp 9 in this embodiment uses a centering cylinder, and the working principle of the centering cylinder belongs to conventional technical means, which will not be elaborated here.

[0032] In order to enable the pressing plate 1 and the sagger 2 to cooperate with each other to compact the material loaded in the sagger 2, there are two implementation modes. In this embodiment, both implementation modes 1 and 2 can be used at the same time, or only implementation mode 1 or 2 can be used. Figure 6 To Attachment Fig. 9 As shown, in the first embodiment, the sagger 2 is driven to move toward the pressing plate 1, and the sagger 2 is provided with a first driving unit 5 that drives it to move forward and feed toward the pressing plate 1 and can be reset in the reverse direction. Specifically, the first driving unit 5 in this embodiment is a first lifting cylinder arranged at the bottom end of the sagger 2 (the working principle of the lifting cylinder belongs to conventional technical means and will not be elaborated here). The working process of the first embodiment is as follows:

[0033] Step S1: After the sagger 2 is transported and positioned directly below the pressing plate 1, the positioning restrictions of the blocking cylinder and the centering cylinder are released and the first lifting cylinder is started, so that the sagger 2 is lifted by the first lifting cylinder; wherein, when the inner bottom wall of the sagger 2 rises to be close to the bottom surface of the pressing plate 1, the sagger 2 stops rising when it is in place.

[0034] Step S2: after the sagger 2 is in place, the spiral feeder 4 is started to start unloading; then, the sagger 2 is driven by the first lifting cylinder to be lowered and reset (here, the sagger 2 may also start to lower and reset after the spiral feeder 4 has been unloading for a certain period of time), and the falling speed of the sagger 2 is less than the unloading speed at the unloading port 32 (that is, the resetting speed of the first driving unit 5 when driving the sagger 2 to reset in the reverse direction is less than the unloading speed of the spiral feeder 4).

[0035] Step S3: After the spiral feeder 4 completes the feeding operation of the predetermined amount of material, the sagger 2 is loaded and the feeding stops; then, the falling speed of the sagger 2 is accelerated, and the sagger 2 descends and resets.

[0036] Step S4: sending the loaded sagger 2 out through the conveying channel 7; waiting for the next unloaded sagger 2 to be delivered to the bottom of the pressing plate 1, and repeating the above steps to complete the batch loading operation of the sagger 2.

[0037] Refer to the attached Fig.10 As shown, the second embodiment: the pressing plate 1 is driven to move toward the sagger 2, and the pressing plate 1 is provided with a second driving unit 6 that drives it to translate and feed in the positive direction toward the sagger 2 and can be reset in the reverse direction. Specifically, the shaft sleeve 11 of the pressing plate 1 is configured to be retractable, and the second driving unit 6 is a cylinder used to drive the shaft sleeve 11 to expand and contract to drive the pressing plate 1 to move up and down (the working principle of the cylinder belongs to conventional technical means, which will not be elaborated here). The working process of the second embodiment is as follows:

[0038] Step S1: After the sagger 2 is transported and positioned directly below the pressing plate 1, the pressing plate 1 is lowered under the driving of the second lifting cylinder; wherein, when the bottom surface of the pressing plate 1 is lowered close to the inner bottom wall of the sagger 2, the pressing plate 1 stops descending when it is in place.

[0039] Step S2: After the pressing plate 1 is in place, the spiral feeder 4 is started to start unloading; then, the pressing plate 1 is lifted and reset under the drive of the second lifting cylinder (here, the pressing plate 1 can also start to lift and reset after the spiral feeder 4 has been unloading for a certain period of time), and the falling speed of the pressing plate 1 is less than the unloading speed at the unloading port 32 (that is, the reset speed of the second driving unit 6 when driving the pressing plate 1 to reset in the opposite direction is less than the unloading speed of the spiral feeder 4).

[0040] Step S3: After the spiral feeder 4 completes the feeding operation of the predetermined amount of material, the pressing plate 1 stops feeding after the loading is completed; then, the rising speed of the pressing plate 1 is accelerated, and the pressing plate 1 rises and resets.

[0041] Step S4: sending the loaded sagger 2 out through the conveying channel 7; waiting for the next unloaded sagger 2 to be delivered to the bottom of the pressing plate 1, and repeating the above steps to complete the batch loading operation of the pressing plate 1.

[0042] As a result, the material in the sagger 2 is always clamped and compacted by the bottom surface of the pressing plate 1 and the inner wall of the sagger 2 during the process in which the falling speed of the sagger 2 is less than the falling speed at the discharge port 32 / the rising speed of the pressing plate 1 is less than the falling speed at the discharge port 32, thereby increasing the stacking density of the material in the sagger 2, loading as much material as possible in the sagger 2 with a certain volume, and greatly improving the filling capacity of the sagger 2; at the same time, compacting the material can also reduce dust splashing and avoid dust pollution.

[0043] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field, without departing from the scope of the technical solution of the present invention, can make more possible changes and modifications to the technical solution of the present invention using the technical content disclosed above, or the modifications are equivalent embodiments of the present invention. Therefore, any equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A sagger charging and compacting device, characterized in that: The invention comprises a screw feeder (4), a sagger (2) for loading materials discharged from the screw feeder (4), and a pressing plate (1) whose shape matches that of the sagger (2), wherein the pressing plate (1) has a shaft sleeve (11) which is connected to the inner cavity of a silo (3), and a feeding channel (31) which extends along its length and is provided for the screw feeder (4) to be placed therein, and the feeding channel (31) extends to the bottom end of the pressing plate (1) to form a feeding port (32) for feeding materials; The sagger (2) is provided with a first drive unit (5) for driving it to move forward in the direction of the pressing plate (1) and / or the pressing plate (1) is provided with a second drive unit (6) for driving it to move forward in the direction of the sagger (2), thereby causing the pressing plate (1) to extend relatively into the sagger (2) to compact the material loaded in the sagger (2); and the reset speed of the first drive unit (5) / the second drive unit (6) when driving the sagger (2) / the pressing plate (1) to reset in the reverse direction is less than the unloading speed of the spiral unloader (4).

2. A sagger charging and compacting device according to claim 1, characterized in that: It also includes a conveying channel (7) for the sagger (2) to receive and convey.

3. A sagger charging and compacting device according to claim 2, characterized in that: A stopper (8) is provided on at least one side of the conveying channel (7) in the conveying direction, and is capable of partially blocking the conveying channel (7) to prevent the sagger (2) from moving.

4. A sagger charging and compacting device according to claim 2, characterized in that: A clamping member (9) is provided on both sides of the conveying channel (7) in the conveying direction, respectively. The two clamping members (9) respectively clamp and press on the opposite sides of the sagger (2) to clamp and fix the sagger (2) and drive the sagger (2) to align with the pressing plate (1) in the vertical direction.

5. The sagger charging and compacting device according to claim 1, characterized in that: The spiral feeder (4) comprises a feeding screw (41) and a rotating unit used for driving the feeding screw (41) to rotate.

6. A sagger charging and compacting device according to claim 5, characterized in that: The feeding screw (41) is formed with a diameter-reducing section (413) whose shaft diameter gradually decreases in the direction of the feeding port (32).

7. A sagger charging and compacting device according to claim 1, characterized in that: At least one edge section (12) is formed at the edge of the upper end surface of the pressing plate (1), and the outer side surface of each edge section (12) gradually slopes downward toward the outside along the length or width direction of the pressing plate (1) to form a stop slope (121).

8. The sagger charging and compacting device according to claim 1, characterized in that: At least one air hole (111) connected to the material discharge channel (31) is formed on the outer peripheral surface of the shaft sleeve (11), and a preset degassing device acts on the air hole (111).

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